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Sturgeon Habitat Workshop Matrix vs3_01102011 _SER-NER_

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Sturgeon Habitat Workshop Matrix vs3_01102011 _SER-NER_ Powered By Docstoc
					                                      Spawning

                                      Occurring
Riverine *           Location/State   (Y/N/U)

General Info - see                    na - See
Crance, J. H. 1986                    Draft SRR
                                      for refs
                     na
(Source)
                                      Y - Dadswell
                                      1979;
                                      COSEWIC
                                      2005; Litvak
                                      unpubl. data




Saint John           Canada
                    U
                    (Fernandes
                    2009,
                    Zylewdski -
                    reports)




Penobscot   Maine
                    Y (Squiers et
                    al. 1981 and
                    1982;
                    Wipplehaus
                    er 2003)




Kennebec    Maine
                       Y (Squiers et
                       al. 1981 and
                       1983




Androscoggin   Maine
                       U (Squiers et
                       al. 1981 and
Sheepscot      Maine   1983
Saco           Maine   U
Piscataqua     NH      U
                       Y (Kieffer
                       and Kynard,
                       1996)




Merrimack      Mass
                            Y (Kieffer
                            and Kynard
                            in review-b -
                            see Draft
                            SRR)




Connecticut   Mass and CT
DeerField     MA




Housatonic    CT            U
                                 Y - Dovel et
                                 al. 1992;




Hudson             NY
                                 Y-
                                 O'Herron,
                                 1993, and
                                 pers. comm
                                 2008




Delaware           NJ, DE, PA
                                 N




                   MD, VA
Chesapeake Bay & C&D Canal
                                 N




Susquehanna        MD, PA (NY)
                            U/ Y? -
                            Kynard et al.
                            2007.




Potomac River      MD, VA
Roanoke            NC       U



Albermarle Sound   NC       N




Chowan             NC       U


Tar Pamlico        NC       U

Neuse              NC       U

New River          NC       U

North              NC       N
Cape Fear    NC   U




                  Moser and
                  Ross 1995



Waccamaw     SC   U


Pee Dee      SC   Y




Black        SC   U


Winyah Bay   SC   U



Sampit       SC   U




Congaree     SC   Y




Wateree      SC   N
Lake
                  SC   N
Marion/Moultrie




Santee            SC   N




Cooper            SC   Y




Ashepoo           SC   N

Combahee          SC   N


Edisto            SC   Y


Ashley            GA   N




Savannah          GA   Y
Ogeechee   GA   Y
Altamaha           GA            Y




Satilla            GA            U

St. Marys          FL/GA         U

St. Johns          FL            U


Key:
* where we know sturgeon occur
**consider using a key with habitat suitability features
1 include source as footnote
***coastal movement means [jess to insert explanation]
****areas where key prey items present
Suitable habitat features present: where & what1 **
Location                                                   Substrate




Possible site identified at the Mactaquac Dam (rkm 145),
which is also the present day upstream limit of their
distribution (Litvak Lab, unpubl. data referenced in
COSEWIC 2005)
1980 and 1981 ~rkm 59 males extruding milt; 1999
approximately ~rkm 60, 135 adults were captured in an
overnight set and it is assumed that these sturgeon were
on the spawning run.
Area btw Brunswick (Rt 201 bridge) and Topsham (~rkm44);    Graduated from ledge,
1993 documented ripe SNS 100 m upriver of Rt 201 bridge.    boulders, cobbles,
Note: Brunswick Dam site of natural falls likely upstream   pebbles, and gravel on
extent of SNS.                                              the Brunswick shore to
                                                            sand in the middle to silt
                                                            on the Topsham shore




Haverhill, MA rkm 30–32 (Kieffer and Kynard 1996)           boulder-rubble
Upstream Segment - 4 km downstream of the Turners           rubble substrate
Falls Dam - refered to the main site as “Cabot Station”     continuously swept
because it occurs in the tailrace of the Cabot Station      clean of fine particles
Electrical Generation Facility (rkm 193). secondary,        and algae
smaller site (0.4 ha in area) is located at Rock Dam
(rkm 194). Rock Dam is a natural rock barrier located
at the end of a natural river reach also flowing from the
Turner’s Falls Dam. succeeded at the Cabot Station
site 71% of years and at the Rock Dam site 21% of
years (Kieffer and Kynard in review-b)
Coeyman’s, NY (rkm 212) north to the Troy Dam (rkm gravel and sand
245). ; Second possible site near Highland NY (rkm   dominated
121), only evidence though was ripe female and spent
male (Greely 1937).


Scudders Falls and the Trenton rapids (rkm approx. 223- Composed primarily of
214)                                                    sand, gravel, and
                                                        cobble, with soft
                                                        sediments found in
                                                        areas of weaker
                                                        currents. Spawning
                                                        apparently occurs in
                                                        fast water over cobble,
                                                        gravel, boulders, and
                                                        clean sand (O’Herron,
                                                        J. pers. comm. 2008).




Conowingo dam rkm 16 is thought to be completely
blocking upstream access to spawning habitat
Although two late-stage females were captured and            the reach used by this
tracked, only one was observed to make an apparent           migrant showed the
spawning migration in the spring. Remote and manual          substrate predominantly
tracking showed one female arrived at the Fletchers Marina   large and small boulders
(rkm 184.5) on April 9 and remained within a 2-km reach      (70–80%), along with
(rkm 187–185) for six days.                                  gravel-pebble and cobble-
                                                             rubble (15.5–24.0%).
Additional female tracked in 2009 in same area




below rkm 221 (dam)




Salmon Creek
(1) above Lock and Dam #1
                               rock ledges in lower
                               estuary
(2) Brunswick River




(1) Moser et al 1998
                               Schwartz et al 1982
(2) Moser and Ross 1995




Gravel bar rkm 206.5


Collins, pers comm 2008




rkm 70

(also upriver of Granby Dam)


(Collins pers comm 2008)
base of the Pinopolis Dam (rkm 76.8)




Cooke et al 2004




rkm 179-278, also possibly at the base of the NSBL&D

Front River, 2 adults tagged
Hall et al 1991; Collins et al 1993;




near the confluence of the Canoochee and Ogeechee Rivers




Rogers and Weber 1994; Weber 1996; Weber et al 1998;
Fleming et al 2003;
Bewteen Doctortown (rkm 89) and the confluence of the
                                                        (1) limestone bluffs with
Ocmulgee and Oconee (rkm 215)
                                                        gravel to boulder sized
                                                        hard substrate
rkm 180-215 (confluence)
                                                        (2) coarse sand




                                                        (1) Rogers and Weber
                                                        1995
DeVries 2006; Rogers and Weber 1995;
                                                        (2) DeVries 2006




11 age-1 and adults (2010) rkm 30-40
Peterson (harass him for info)
rkm 30; 1- 2 adults (90 cm)
Peterson
ility features

rt explanation]
Timing                        Velocity   Temperature                 Salinity   Depth




Dadswell (1979) concluded                Daswell data (1979)-
that spawning occurred                   Water temperatures
from mid-May to mid-June                 during this period (1973-
in the Saint John River                  1977) ranged from 10-
based on capture of ripe                 15oC.
and spent shortnose
sturgeon.; (Hardy and
Litvak 2004), to back-
calculate date of hatching
and timing of reproduction
found spawning in the
Saint John River in April,
earlier than had previously
been recorded (COSEWIC
2005).
1999 event water temp
14 deg
Late April through mid-  Water velocities measured 8.5 - 14.5 deg; 1993   max depth 6.7
May; 1993 documentation along a transect from the data 7-17 deg           m; avrg depth
April - last week in May Brunswick shore to the                           3m
                         Topsham shore on
                         October 14, 1983 during
                         an outgoing tide ranged
                         from 32cm/sec. to
                         60cm/sec




April and departed no     1989 event bottom                               1989 ampling
later than 30 April       velocity averaged 0.48                          mean depth
                          m/s (range, 0.3–0.7 m/s);                       2.3 m (range,
                          1990 event bottom                               1.8–3.0 m); .
                          velocity averaged 0.33                          In 1990 mean
                          m/s (range, 0.3–0.4 m/s).                       depth was 3.8
                                                                          m (range,
                                                                          2.7–5.5 m).




                                                      9.6–14.0°C
Early April to late May/   1993-1995 mean bottom   6.5–15.9 °C   1993 - 2007
early June                 velocities of 0.7 m/s                 3–17 d
                           (range 0.3–1.2 m/s)                   (mean; 7.8
                                                                 d); 1993-
                                                                 1995 1.8 m
                                                                 (range;
                                                                 1.2–5.2 m);
Late March                 10 to 18°C
late March through early   Between 8 and 25°C,    shallow about
May                        with most spawning     the fall line
                           occurring within the   (<3 meters in
                           10-18°C                summer).
                                                  According to
                                                  O’Herron et
                                                  al. (1993)
                             During spring 2007,        12.0–16.0 °C   The Potomac mean depth
                             researchers determined                    River is       was 6.3 m.
                             mean bottom velocity                      considered to
                             along the channel                         be tidally
                             shoulder in the Fletcher’s                influenced up
                             Marina-Chain Bridge reach                 to the Chain
                             (rkm 184.5–187.0) was                     Bridge (rkm
                             1.05 m/s                                  187) which
                                                                       lies just 2 km
                                                                       upstream of
                                                                       the suspected
                                                                       spawning area
                                                                       at Fletcher’s
                                                                       Marina
                                                                       (Kynard et al.
                                                                       2007).




early March to early April                             9-14 deg C
Hewitt 2003                                            Hewitt 2003
                                            high salinities
                                            in range lethal
                                            to juveniles
                                            (14.8 - 20.9
                                            ppt)



                                            Ziegeweid et
                                            al 2008;
                                            Schwartz et al
                                            1982; Moser
                                            and Ross 1995




         One year drought, one
30-Mar                           8-10 deg                     2-4 ft
         year flood


         Collins                 Collins                      Collins
Jan to March   10 deg C
Jan to March              10 - 12 deg C




                          Heidt and Gilbert 1978;
Heidt and Gilbert 1978;
                          Rogers and Weber
Rogers and Weber 1995;
                          1995; DeVries 2006




summer
                               Nursery

                               Occurring
                               (Y/N/U)
DO   Other (e.g. turbidity)?
                               na - See
                               Draft SRR
                               for refs




                               Y
U




Y
                        Y




                        U
                        U
During 1989 and 1990
decreasing river
discharge was between
390–240 m3/s. 1




                        Y
Mean discharge ranged Y (Kynard et
from 901–121 m3/s.    al. in review-
                      c- see draft
                      SRR);
                      (Kynard and
                      Horgan
                      2002)




                        U
Y
Y - ERC Inc.




N




N
mean daily river      U - Kynard
discharge was 157–178 et al., 2007
m3/s.




                       U



                       U




                       U


                       U

                       U

                       U

                       U
U




U


U




U


U



U




Y




U
Y




U




U




U

U


U


N




Y
Opportunistic spawning
in years of high water,
                         U
but made up of fish
from other rivers (not a
U




U

U

U
Suitable habitat features present: where & what1 **
Location                                                  Substrate   Timing   Forage




Litvak lab collected a total of 14 shortnose sturgeon
larvae below the Mactaquac Dam using a towed and
weighted bongo net in the spring months of 1998 to
2002 (Litvak Lab., unpubl. data as ref. in COSEWIC
2005). In the spring of 2003, using a different system,
they caught hundreds of eggs and larvae all within 5 km
of the dam (Litvak Lab., unpubl. data as ref. in
COSEWIC 2005). Additionally, in an earlier study,
Taubert and Dadswell (1980) captured two shortnose
sturgeon larvae at the Oromocto shoals (rkm 120).
1997 - 2001 conducted ichthyoplankton resulted in small
number of eggs and larvae collected below former Edwards
Dam site (rkm 61-70); (Wipplehauser 2003)
1994 event eggs collected 100 m upriver of Rt 201 bridge




Embryos documented in 1990 at rkm 32; 2009
sampling event ELS nets set between 26–28 April 2009
sampled 37,178 m3 of water at Haverhill, capturing
two free embryos and four eggs.
Upstream Segment - ELS captured at the downstream               Lab
Turners Falls site (Cabot Station).; Downstream Segment-        studies
1993–1997 systematic ELS sampling at Holyoke along with         showed
gill-net sampling and tracking.resulted in four eggs and four   by day 20
free embryos (also called yolk-sac-larvae; transition period    most
between hatchlings and larvae) were captured along with         larvae had
mature males and females.; 2005-2006 larval captures            ceased
occured.                                                        migration
                                                                and
                                                                started
                                                                foraging
                                                                (Kynard
                                                                and
                                                                Horgan
                                                                2002)
1996 through 2004, about ten small shortnose were
collected each year as part of the FSS survey (ASA 2007).




Eggs were collected upstream of Titusville, NJ (rkm
229) in spring 2008 (H. Brundage, ERC, pers. comm.
2008); larvae and/or eggs collected between Scudders
Falls (rkm 223) and Trenton (rkm 214)
No ELS documented




Batchelor Bay channel
Kornegay 2005




Salmon Creek
rkm 70 and below



Collins et al 2003
Lake Marion




Collins et al 2003




conditions below dam not consistent with parameters that
support survival in other systems




Cooke and Leach 2004




mouth of the Middle River, Port of Savannah
                                                                               Foraging (J=Juveniles; SA=

                                                                               Occurring
                                                                               (Y/N/U)
Temperature                  Salinity   Depth   DO   Other (e.g. turbidity)?
In a test of dispersal at                                                      na - See
three temperature levels                                                       Draft SRR
(10, 15, and 20°C), absorb                                                     for refs
yolk sacs faster, begin
                                                                               Y-
                                                                               Dadswell
                                                                               1979;
                                                                               Pottle and
                                                                               Dadswell
                                                                               1979,
                                                                               Dadswell et
                                                                               al. 1984
Y




Y
Y
U
U




Y
Kynard and Horgan (2002)      Y -
- endless stream tank with    Upstream
temperatures between          Segment(Ki
16–23°C, all Connecticut      effer and
River ELS dispersal           Kynard in
ceased after day-35 (a        review -
dispersal period of 30 days   see draft
with the first major peak     SRR);
lasting 7 days).              Downstrea
                              m Segment
                              (Savoy and
                              Benway
                              2004)




                              U
Y - Haley 1996
Y-
O’Herron, J.
pers.
comm.
2008). ;
(ERC, Inc.
2006b - see
draft SRR).




U




U
              Y - Kynard
              et al. 2007




              U


shallow
portions of   U
sound
Haley et al
1996, Bain
1997

              U


              U

              U

              U

              U
                     Y




Juvenile collected   Y


                     Y




                     Y


                     Y



                     Y




                     Y




                     Y
                               Y




                               Y




                               Y




                               U

                               U


                               Y


                               N



Savannah River larvae,
longer dispersal period
characterized by multiple
peaks and prolonged peaks.
Savannah River larvae also
                               Y
continued downstream
dispersal through the entire
larval period and some
through the early juvenile
period (day 62)
Y
Y




U

U

U
Foraging (J=Juveniles; SA=Sub Adult; A=Adult)



            Suitable habitat features present: where & what1 **
            Location                                                      Substrate




            Dadswell (1979) foraging in freshwater upper estuary and in
            saline reaches of the lower estuary.
In saline portions of the lower estuary shortnose sturgeon fed heavily in fall, winter, and spring (Dadswell 1979). Ri
Montsweag Bay (McCleave et. al. 1977)




salt/freshwater interface (rkm 7–12)    mostly over sand
Upstream Segment - Within the 49-km DCA foraging area,          Upstream
the mean range of foraging adults was 8.4 km (range; 4.0–14.2   Segment -
km); In general though foraged over wide area/ habitats;        preferred curved
Downstream Segment                                              areas of river
                                                                dominated by
                                                                sand or cobble
                                                                substrate and
                                                                avoided runs
                                                                (straight river
                                                                sections);
                                                                Downstream
                                                                Segment
Y - Haley 1996
             Vicinity of Trenton south to Artificial Island (rkm 79) (J. O’Herron,   Predominate
             pers. comm. 2008).                                                      substrates in the
                                                                                     tidal river include
                                                                                     fine grain
                                                                                     sediments (silt,
                                                                                     sand and clay).
                                                                                     Larger substrates
                                                                                     ranging from
                                                                                     gravel to bedrock
                                                                                     can be found in
                                                                                     certain areas,
                                                                                     however (ERC,
                                                                                     Inc. 2006b).




             Possible foraging habitats limited to the upper tidal portions of the
             upper Bay, the Potomac and James rivers (work referenced in Secor
             and Niklitschek 2002)




             shortnose sturgeon migrate downstream to estuaries and bays
             presumably for foraging (Kieffer et al. in press; Brundage 1986).
             These findings suggest that shortnose sturgeon in the Susquehanna
             River would use the Chesapeake Bay for foraging.
two female shortnose sturgeon were tracked (2005–2007) they
spent the summer-fall in a 78-km reach (rkm 141–63) of the
river. The two female shortnose sturgeon used Throughout
the summer and winter, they were observed in a wide range of
water temperature Substrate types recorded at locations where
these females were present were mud (80.7%), sand/mud
(15.8%), and gravel-mud (3.5%). The foraging area was also
characterized by prolific tracts of submerged aquatic vegetation
and algal blooms. In addition, tidal cycles caused currents to
reverse throughout the entire summer-winter range.




Batchelor Bay channel
Kornegay 2005
                                                                   organic rich mud
NE and W portions of sound (J)
                                                                   with benthic prey

Armstrong and Hightower 1999, 2002; Armstrong and White 2000;      Moser and Ross
Haley et al 1996; Bain 1997; Haley 1999;                           1998; Riggs 1996;


Salmon Creek (J)
lower Cape Fear estuary and Brunswick River (A)




Moser and Ross 1995




lower portion of river


lower portion of river




lower portion of river

wide area from the jetties (nearshore ocean in reduced salinity of
freshwater plume) through bay


lower portion of river



channel of the upper Santee (formed by the confluence of the
Congaree and Wateree)




channel of the upper Santee (formed by the confluence of the
Congaree and Wateree)
(1) Lake Marion: Brown's Lake in summer

(2) when temps drop, upper portion of Lake Marion and the channel
of the upper Santee



channel of the upper Santee




Downriver




salt/fresh interface




throughout the estuary near the city of Savannah, GA
(1) deep holes just downriver from spawning area (low discharge)

(2) areas above salt/fresh interface at ~rkm 60 (increasing
discharge, summer)

(3) salt/fresh interface, brief periods in saline waters (winter)
(1) deep holes just upstream of salt/fresh interface (low discharge)

(2) greater downstream area, but still above salt/fresh interface
(decreasing discharge)

(3) near salt/fresh interface, brief periods in saline waters (winter)

(4) Ebenezer Bend (main segment of Altamaha Delta)

(5) Hole in the Champney River segment of the delta, just
downstream of Highway 95




(1)(2)(3) Dadswell et al 1984; Buckley and Kynard 1985; Rogers and
Weber 1994; Weber 1996; Collins and Smith 1997; Palmer 2001;

(4)(5) DeVries 2006; Rogers and Weber 1995;
Timing                                 Velocity   Temperature              Salinity




At the beginning of June, occurrence               In the upper estuary,
of prey and stomach fullness                      shortnose sturgeon
increased considerably, remained                  fed only in months
high during July, August, and                     when the water was
September, and then declined by                   warm (~ 10oC and
November (Dadswell, 1979).                        warmer).
June through July/ August




mid - April - Late Nov./ early Dec.   The temperature          Bath Region salinity
                                      ranges from 4°C in       range 0 to 21 ppt
                                      April to over 24°C in    (May through
                                      July, to around 5°C in   November). Very
                                      late November.           little stratification
                                                               during most of this
                                                               time period and the
                                                               difference in
                                                               salinities from the
                                                               surface to the bottom
                                                               are usually less than
                                                               1 ppt.
                       temp 12 -22 deg   Salinities 12 to 28
                                         ppt in June and July




May through mid-June
Upstream           Downstream Segment-
Segment -          Shortnose sturgeon
Juveniles used a   sampled throughout
slower bottom      the year at both
velocity (< 0.4    riverine and estuarine
m/s) during late   locations showed a
fall and winter    significant difference
than adults;       in feeding between
Downstream         cold- and warm-water
Segment            periods: 85% of
                   individuals sampled in
                   water temperatures <
                   12.0°C contained
                   nothing or only trace
                   amounts of food
                                       Most fish thought to
                                       be foraging occurred in
                                       FW (Haley 1996)




Summer and early fall mainly, though
some foraging may also occur in
winter, though not feeding heavily
(O’Herron, J. pers. comm. 2008).
1.8–32.0°C   rkm 141-63 in tidal
             freshwater, the
             downstream section of
             the range experiences
             tidal salinity.
fall, early winter, late spring


fall, early winter, late spring




fall, early winter, late spring


fall, early winter, late spring



fall, early winter, late spring




                                  cooler temps




                                  cooler temps
                                       (1) warmer temps

                                       (2)cooler temps




after spawning; sedentary in summer,
then forage again when temps drop in
the fall




                                                          0-5 ppt




                                       cool temps
             (1) Low
(2) Summer
             (2) increasing   (1) above salt/fresh
                              interface

                              (2) above salt/fresh
                              interface

                              (3) at salt/fresh
                              interface, brief periods
                              into saline water
(3) Winter
                                                     above salt/fresh
                                                     interface
                                    Low




                                                     above salt/fresh
                                                     interface
                                    decreasing
(1) Summer

(3) Winter




                                                     near salt/fresh
                                                     interface, brief periods
                                                     into saline water



                                    Dadswell et al
                                    1984; Buckley
                                                     Dadswell et al 1984;
                                    and Kynard
                                                     Buckley and Kynard
Dadswell et al 1984; Buckley and    1985; Rogers
                                                     1985; Rogers and
Kynard 1985; Rogers and Weber       and Weber
                                                     Weber 1994; Weber
1994; Weber 1996; Collins and Smith 1994; Weber
                                                     1996; Collins and
1997; Palmer 2001;                  1996; Collins
                                                     Smith 1997; Palmer
                                    and Smith
                                                     2001;
                                    1997; Palmer
                                    2001;
Depth                                   DO   Prey****




Freshwater foraging grounds in the           benthic invertebrates but prey
upper estuary were in shallow (1-5 m)        items varied with fish size and
inshore regions that were highly             locations in the estuary.;
eutrophic and characterized by               Freshwater foraging grounds in the
abundant aquatic macrophytes                 upper estuary were in shallow (1-5
(Dadswell 1979).                             m) inshore regions that were
                                             highly eutrophic and characterized
                                             by abundant aquatic macrophytes
                                             (Dadswell 1979).; Juveniles
                                             primarily feed on crustaceans and
                                             insects while adults mainly eat
                                             mollusks, predominantly Mya
                                             arenaria a soft-shelled clam
                                             (Dadswell 1979, Pottle and
                                             Dadswell 1979, Dadswell et al.
                                             1984). Furthermore, Dadswell
                                             (1979) described juveniles as
                                             random feeders whose stomachs
                                             often contained up to 90% by
                                             volume, nonfood items (mud,
                                             stones, and wood chips) while
                                             adults were apparently more
                                             selective; their stomachs
                                             contained little or no nonfood
                                             items.
Dissolved       dominant species in Winnegance
oxygen levels   Creek was the sabellid
are almost      polychaete, Maranzariella
always near     viridis
100%
saturation.
                                  crangon shrimp (Crangon
                                  septemspinosous ); clams (Mya
                                  arenaria ); and small winter
                                  flounder (Pseudopleuronectes
                                  americanus )




used shoal and channel habitats
Upstream Segment - Juveniles         Downstream Segment - Major
and adults foraged over 0.3–15.0 m   taxa represented in stomachs of
during summer and fall, ;            downstream-segment shortnose
Downstream Segment                   sturgeon were Bivalvia,
                                     Malacostraca, Polychaeta, and
                                     Insecta
Gammarid amphipods,
dreissenid mussels, isopods, and
chironomids were the most
prevalent food items for the
freshwater portion of the estuary

 oligochaetes, Asian clams, and
chironomids were observed over
occupied sturgeon habitats during
macroinvertebrate sampling
conducted in the early 1980’s (J.
O’Herron (pers. comm. 2008).
depths between 4.1–21.3 m, but most DO (4.8–14.6
locations (89.2%) were recorded in  mg/L)
the channel.
amphipods



Collins et al 2006



amphipods
Collins et al 2006
mostly insect larvae, primarily
made up of mayfly larvae



Collins et al 2006
amphipods
Collins et al 2006




amphipods




Collins et al 2006
                          Overwinter (J=Juveniles; SA=Sub Adult; A=Adult)

                          Occurring
                          (Y/N/U)       Suitable habitat features present: where & what1 **
Other (e.g. turbidity)?                 Location                                          Substrate
                          na - See
                          Draft SRR
                          for refs


                          Y-            Dadswell (1979) documented seven wintering          Li et al. 2007
                          Dadswell      sites in both fresh and salt water in the Saint     showed habitat
                          1979; Li et   John River.; Additional wintering site              selection for flat,
                          al. 2007      identified by Li et al., (2007) at the confluence   sand substrate.
                                        of the Kennebecasis and Hammond rivers (rkm         .
                                        35). None of the sturgeon tagged by Li et al.
                                        (2007) were tracked to the other wintering sites
                                        reported by Dadswell in 1979. Sampling at
                                        one of the sites previously described by
                                        Dadswell (1979) yielded no results (Li et al.
                                        2007).
Y   rkm 37
    Prior to 1996 suspected overwintering sites -
    (below Bluff Head, rkm 15) and possibly in
    adjacent estuary Sheepscot River (Squiers et al,
    1982); tidal freshwater sections of the Eastern and
    Cathance rivers (tributaries to Merrymeeting Bay )
    (Squiers et al, 1982).




Y
    Suspected site in estuary of the Sheepscot
    River (Squiers et al, 1982).




U




U
U
    11-km reach (river km 12–23; Recent tracking
    in this reach showed tagged fish concentrated
    in three separate sites (rkm 17, 21, and 23),
    with the rkm 21 site having the greatest
    percentage (47.6%) of acoustic-tagged
    wintering fish (m. Kieffer, unpubl. data).




Y
Y-             Upstream Segment - Whitmore (rkm 183), Second       Upstream
Upstream       Island (rkm 180), S-turn (rkm 170), Hatfield (rkm   Segment - sand
Segment -      168), and Elwell Island (rkm 158; Downstream        substrate.;
(Kieffer and   Segment - four wintering sites: Agawam (rkm         Downstream
Kynard in      117), Holyoke (rkm 140), Hartford (rkm 86–82)       Segment -
review-a);     and the lower river reach (rkm 25–0). 1988, the     similar to
Downstrea      CT DEP confirmed a wintering site at Hartford, CT   Upstream
m Segment      (~ rkm 85), and Portland, CT (~ rkm 50)
- Buckley
and Kynard
(1985a),
(Savoy
1991)




U
Y - Dovel et largest over-wintering site occurred near
al. 1992     Esopus Meadows, just south of Kingston, NY;
                other areas in mid-Hudson may also serve as
                overwintering, NYDEC documented in
                Haverstraw Bay

Y - ERC, Inc.   Roebling (rkm 199), Bordentown, (rkm 207)
(2006a and      or Trenton reaches, the channel off Duck
2007b);         Island (rkm 208) (O’Herron 1993). ; Evidence
O'Herron        of an overwintering area in the lower portion
1993            of the river, below Wilmington, DE (ERC, Inc.
                2006a). ; Rcent study of juvenile shortnose
                sturgeon suggest that the entire lower
                Delaware River from Philadelphia (approx.
                rkm 161) to below Artificial Island may be
                utilized as an overwintering area by juvenile
                shortnose sturgeon (ERC, Inc. 2007b).




U
U-              Anecdotal reports of congregations of sturgeon
(Richardson     found in deep holes near Lapidum and Perrysville,
et al. 2007;    could indicate habitat that was utilized for
R. St. Pierre   overwintering and resting (Richardson et al. 2007;
pers.           R. St. Pierre pers. comm. 1998)
comm.
1998)
       All winter sites selected by this female
       occurred within the 78-km summer-fall reach.
       This female returned to the same reach for
       wintering three consecutive years (2005-2007)
       and occupied < 2 km during winter.




U/Y?
U      deep holes in lower river



U




U


U

U

U

U
                        Y    Brunswick River




                             Ross et al 1988; Moser and Ross 1995;




                        U


                        U




                        U


                        U


Confluence of the Sampit
                         U
and Winyah Bay



                        U




                        U
Individuals in reservoir in
poorer condition than
individuals below dam:
                            U
perhaps due to poor
habitat quality/lack of
prey
Collins et al 2003
                           U




                           U




                           U

                           U


                           U


                           N




                           Y    throughout the estuary
N
Y   Upper portion of the river




    Rogers and Weber 1995




U

U

U
Timing   Velocity            Temperature        Salinity          Depth            DO




         Li et al. 2007      Freshwater         FW lake sites     FW lake sites    Li et al.
         study current       lake sites cold    had moderate      relatively       2007
         velocity varied     water              tidal currents.   deep             study
         with the tide       temperatures       Saline reaches    (exceeding 10    Dissolved
         (ranging from -     (0-3oC). Saline    in lower          m) ; Li et al.   oxygen
         0.6 to 1 m/s)       reaches in the     estuary up to     2007 study       values
         but did not         lower estuary      20% saline.; Li   depths ranged    were high
         appear to affect    were warmer        et al. 2007       from 3.1-6.9     and
         aggregations of     (2-13 oC); Li et   study salinity    m.               averaged
         fish; the           al. 2007 study     was near 0%                        10.51 mg-
         researchers did     temperatures                                          L-I ± 0.26
         note that study     were stable at                                        (SE)
         fish oriented       0oC and
         head-first to the
         current .
Early October thorugh
April
approaching
minimums of
0°C
Upstream Segment -           Upstream         Upstream         Upstream
When decreasing day          Segment -        Segment - All    Segment -
lengths fell below 11.0 h,   bottom           winter sites     dissolved
adults began moving to       velocity;        occurred in      oxygen
winter concentration         0.02–0.49 m/s,   channel          (DO);
areas. By the time day                        habitat (depth   11.55–12.
length had diminished to                      > 50% of         84 mg/L,
9.82-9.60 h, most (>80%)                      maximum
tagged individuals had                        cross-river
stopped moving and                            transect
formed several dense                          depth),
concentrations,                               approx.
corresponding to winter-                      depth3.1–8.5
period dates of roughly                       m. ;
15 November–15 April                          Downstream
                                              Segment -
                                              similar to
                                              upstream
                                              depths
December-March
Nov through Feb


Armstrong and
Hightower 2002;
Individuals collected year-
round (i.e., in winter)
Fall pre-spawn migration
into upper portion of the
river and completion of
migration in the spring




Rogers and Weber 1995
                          Coastal movement***

                          Occurring
                          (Y/N/U)     Suitable habitat features present: where & what1 **
Other (e.g. turbidity)?               Location                           Substrate
                          na - See
                          Draft SRR
                          for refs


                          U
Y - G.       PN - Kenn; PN - other Coastal
Wipplehaus Rivers btw Kenn and PN
e, G.
Zylewdski,
2010, and J.
Sulikowsky,
MEDMR
Annual
Report




Y - G.         PN - Kenn - Movement from the
Wipplehaus     Kennebec to the Penobscot was
e, G.          documented when two
Zylewdski,     shortnose sturgeon PIT tagged by
2010, and J.   ME DMR in the Kennebec River in
Sulikowsky,    1998 and 1999 were recaptured
MEDMR          in the Penobscot River in 2006 by
Annual         UMaine researchers.
Report
    four late-stage females tagged
    in the Merrimack River
    between October-December
    2009 (M. Kieffer, unpubl.
    data) departed the river
    between March 3rd and April
    4th of 2010 and migrated
    roughly 130 km to the
    Kennebec River mouth. Fish
    were detected on Kennebec
    River data loggers positioned
    at known or suspected
    spawning areas between March
    30th and May 7th 2010 (G.
    Whippelhauser, pers. comm.,
    2010), then returned to the
    Merrimack River during May 9-
    21, 2010. In addition, an adult
    fish captured in the Kennebec
    River in October 2000 was
    recaptured on November 20,
    2009 in the Merrimack River
    near the wintering site at rkm
    17.
Y
    PIT-tagged shortnose sturgeon
    from the Connecticut River to
    the Housatonic River, CT (~50
    km of movement west through
    Long Island Sound; T. Savoy,
    pers. comm.); PIT tagged in
    the Hudson River by Bain
    (1997) to the lower
    Connecticut River (~140 km
    movements east through Long
    Island Sound; Savoy 2004; T.
    Savoy, pers. comm)




Y

    shortnose sturgeon captured in
    the Housatonic in 2005 was a
    migrant from the Connecticut
    River moving to the Hudson
    River. Genetic analysis of this
    individual, however, showed
    that it was more similar to
    Hudson River population than
    to Connecticut River
    population, indicating this
    migrant was more likely
    spawned in the Hudson River,
    migrated to the Connecticut
    River where it was first
    captured and PIT-tagged, then
    was recaptured in the
    Housatonic River, perhaps on
    its way back to the Hudson
Y   River.
            Two individuals tagged in
            1995 in the over-wintering area
            near Kingston NY were later
            recaptured in the Connecticut
            River
Y
Y - (ERC, Inc. moving between the upper
2006a - see tidal river and the area of the
draft SRR) Chesapeake and Delaware
            Canal (C&D Canal) (rkm 95)
            or farther downstream




            sonic tags attached to
            shortnose sturgeons in the
            upper Chesapeake Bay and
            Delaware River suggest that
            they use the C&D Canal, a sea-
            level canal connecting the two
            water bodies (Skjeveland et
Y           al.2000, Welsh et al. 2002)
U


    W sound and river corridors to
U   first dam (no migration sound to
    Roanoke)
    Armstrong 1999; Armstrong and
    Hightower 1999, 2002;

    Mainstem (Meherrin, Nottoway,
U
    Blackawater, and Chowan)


U

U

U

U
                    migration/staging corridor for
                Y
                    spawning




                    Moser and Ross 1995



Bull Creek -
                U
oversummering

Bull Creek -
                U
oversummering




                U


                U



                U




                U




                U
U




U




U




N




    Range widely during cooler
    months
Y
    summer aggregation in
    oligohaline area around rkm 40
U
    Fish moving between the
U   Ogeechee and the Altamaha
    (going both ways)




U

U

U
ere & what1 **
           Timing   Velocity   Temperature   Depth   Other?
Spring Emigrant -
Leave PN in spring (78% detected in the
Kenn River near suspected spawning
locations). Within 2 months of emigration,
the spring emigrants had returned to the
PN; Fall Emigrant -
Immigrate into the PN River during the
spring, remain in the river for the duration
of the summer following the movements of
river resident fish, then leave the PN River
during the fall inhabiting other systems (e.g.,
the Kenn River) over winter. 80% were
documented returning to the PN; Summer
Emigrant -
emigrate from PN River June and July and
overwinter in both the Penobscot and Kenn
Rivers during separate winter periods.
Individuals returning to the PN River btw
late April and June. One individual in this
group spent a prolonged period (> 3
months) in coastal river systems between
the PN and Kenn Rivers.
Movement btw upper tideal river and CD
canal mainly in spring, after the spawning
period (likely movement to summer
foraging areas), and in early to mid-winter
(likely movement to overwintering areas)
(ERC, Inc. 2006a)
                                 Spawning



                                 Occurring
Riverine *      Location/State   (Y/N/U)       Suitable habitat features present: where & what1 **
                                               Location      Substrate                      Timing
                                 na - ASSRT
General Info    na               2007
(Source)

Penobscot       Maine            U
Kennebec        Maine            Y
Androscoggin    Maine
Sheepscot       Maine
Saco            Maine
Piscataqua      NH
Merrimack       Mass
Taunton         MA
Connecticut     Mass and CT
Housatonic      CT
Hudson          NY               Y
                                 Y - Simpson
                                 2008
Delaware        NJ, DE, PA
Susquehanna     MD, PA (NY)
Potomac River   MD, VA
Rappahannock    VA               U
Nanticoke       MD
York            VA               U
James           VA               Y             Spawning reefs constructed out of crushed native aggregate, egg mats plac
Roanoke         NC               Y                          organic rich mud bottoms


                                 NCDMF                      Armstrong and Hightower
                                 IGNS 1990 -                2002

Chowan          NC               U

Tar Pamlico     NC               Y

Neuse           NC               U


Cape Fear       NC               Y


Waccamaw        SC               Y
Pee Dee     SC      Y

Sampit      SC      N


Santee      SC      U


Cooper      SC      U

Ashepoo     SC      N

Combahee    SC      Y

                        1 YOY
                        (2010) less
Edisto      SC      Y
                        than 10 cm
                        rkm 30


                        Currently,
                        below
                        NSBL&D
Savannah    GA      Y
                        Historic,
                        Augusta
                        Shoals
                        (above dam)


                        Age-1 rkm
Ogeechee    GA      Y
                        55 - 10

Altamaha    GA      Y


                        75 Age-1
Satilla     GA      Y                 summer
                        rkm 30-45


St. Marys   FL/GA   N
                                                  Historically,
                                                  potentially
St. Johns         FL                N             the           SAV
                                                  Ocklawha
                                                  River
                                                               Jordan 2002

Key:
* where we know sturgeon occur
**consider using a key with habitat suitability features
1 include source as footnote
***migration means… [lynn to insert definition] if think it is occurring, identify where, otherwise accept blanks as unknown w
                                                                                             Nursery



                                                                                             Occurring
*                                                                                            (Y/N/U)
           Velocity    Temperature     Salinity   Depth       DO   Other (e.g. turbidity)?

                                                                                             na




                                                                                             Y




ggregate, egg mats placed, no eggs detected
                                                  3.6-5.4 m
                                                  Armstrong
                                                  and
                                                  Hightower
                                                  2002




                                                                   Juv netted (Flowers
                                                                   pers comm)
                         U




                         U




                         Y




                         Y




65 of the 75 fish were
clearly not from the
Altamaha (Moyer
report)

                         Y
                                                                                                            Y




ept blanks as unknown whether occurring or unknown where it occurs (this will be provide as explanation to accompany table)
Suitable habitat features present: where & what1 **
Location      Substrate     Timing        Forage    Thermal Refuge   Salinity   Depth   DO
lower river
ompany table)
                           Migration***




                           Occurring (Y/N/U)   Suitable habitat features present: where & what1 **
Other (e.g. turbidity)?                        Location               Substrate     Timing         Velocity

                           na




Juv (3?) in the past few
years


Igns




Juv caught in a dredge
in Dec 2010
YOY or Age -1 caught
below Hwy 17 bridge
(2011)
Collins
Temperature   Salinity   Depth   Other?
                                 Foraging


                                 Occurring
Estuarine*      Location/State   (Y/N/U)                Suitable habitat features present: where & what1 **
                                             Location   Substrate         Timing           Velocity
General Info    na               na
(Source)

Penobscot       Maine
Kennebec        Maine
Androscoggin    Maine
Sheepscot       Maine
Saco            Maine
Piscataqua      NH
Merrimack       Mass
Taunton         MA
Connecticut     Mass and CT
Housatonic      CT
Hudson          NY
Delaware        NJ, DE, PA
Susquehanna     MD, PA (NY)
Potomac River   MD, VA
Rappahannock    VA
Nanticoke       MD
York            VA                                      gravel bars(?)
James           VA                                                       Fall


Roanoke         NC                                                       Nov



Chowan          NC

Tar Pamlico     NC

Neuse           NC

Cape Fear       NC


Waccamaw        SC



Pee Dee         SC
Sampit     SC   Y

Santee     SC


                    aggregations
                    in shipping
                    channel
Cooper     SC   U                    Winter
                    outside
                    Charleston
                    Harbor


Ashepoo    SC

                    2 adults
Combahee   SC       tagged rkm       Fall
                    45 (2010)



                    rkm 40
                    (above Hwy
Edisto     SC                        Fall
                    17) adults
                    tagged




Savannah   GA


                    Adult Atlantic
                    tracked up
                    the
                    Ocmulgee

                    Suspected
Ogeechee   GA       spawning
                    area
                    limestone
                    outcropping
                    Wilcox Co on
                    the Oconee
                    and Lorens
                    Co on the
                                                 IN the
                                                 Oconee,
                                                 Avant Mine
Altamaha            GA                           (Washington,
                                                 Wilkinson,
                                                 Baldwin Co.
                                                 dam)


                                                 1 adult rkm
Satilla             GA                                                           spring
                                                 30

                                                 Subadults
                                                 2010 (10 fish)
                                                                                 Winter and
St. Marys           FL/GA                        around rkm
                                                                                 summer
                                                 30, head of
                                                 tide

St. Johns           FL


Marine (capture range of DPS)

(lynn to fill in)

(SER to fill in)


Key:
* where we know sturgeon occur
**consider using a key with habitat suitability features
1 include source as footnote
***migration means… [lynn to insert definition] if think it is occurring, identify where, otherwise accept blanks as unknown w
****areas where key prey items present
                                                                                  Overwinter


                                                                                  Occurring
           1 **
where & what                                                                      (Y/N/U)
         Temperature   Salinity   Depth   DO   Prey**** Other (e.g. turbidity)?
                                                                                  na




                                                          subadult captures ongoing
                                                          subadult captures ongoing




                                                          Upper James, Appamattox, 60 adults tagged, milt
                                                          3 adults; tagged; milt;
                                                          8 and 2 adults
                                                          encountered on
                                                          separate occasions;




                                                          Sub
                                                          IGNS
                                                          Confluence of the
                                                          Black, large adults
                                                          jumping

                                                          Progress Energy has
                                                          collected adults
Shipstrike, adult,
Charleston Harbor         U
(Summer 2010)




Headless adult Atlantic
(2009) - shipstrike
accept blanks as unknown whether occurring or unknown where it occurs (this will be provide as explanation to accompany table)
            Suitable habitat features present: where & what1 **
            Location       Substrate      Timing         Velocity   Temperature   Salinity   Depth   DO




, 60 adults tagged, milt
aggregations
in shipping
channel
               Winter
outside
Charleston
Harbor
           2010 - North of Duck
           Wilson




o accompany table)
                                 Migration***


                                 Occurring
                                 (Y/N/U)     Suitable habitat features present: where & what1 **
Prey   Other (e.g. turbidity)?               Location     Substrate Timing          Velocity
                                 na
    aggregation
    s in shipping
    channel
U                   Winter
    outside
    Charleston
    Harbor
& what1 **
             Temperature   Depth   Other?
Fish from
Edisto
picked up
on
Hatteras
Array

				
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