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BFT_Recent_Trends_Feb_2009

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									Recent Trends in the
Atlantic Bluefin Tuna Fishery



January 1, 2013

Highly Migratory Species Management Division
Gloucester, MA
                                           BFT Adjusted Quota
                                            and Landings (mt)
              3,000



                             Quota
              2,500

                             Landings

              2,000
metric tons




              1,500




              1,000




               500




                 0

                      1996     1997     1998   1999   2000   2001   2002   2003   2004   2005   2006   2007   2008
        BFT Size at Age




(curved fork length)
Source: SCRS
       BFT Maturity Curve




                          ).


Source: Diaz and Turner 2006 (SCRS 2006/090)
     Western Atlantic BFT Landings (weight)
                                                                                          (1975-2007)

     20000
                                                                                                                                                                                      All BFT-W (t)
     18000
                                                                                                                                                                                      US (t)
     16000                                                                                                                                                                            Canada (t)

     14000
                                                                                                                                                                                      Japan (t)
                                                                                                                                                                                      ALL Other (t)
     12000
mt




     10000


      8000


      6000


      4000


      2000


        0
             1950

                    1952

                           1954

                                  1956

                                         1958

                                                1960

                                                       1962

                                                              1964

                                                                     1966

                                                                            1968

                                                                                   1970

                                                                                          1972

                                                                                                 1974

                                                                                                        1976

                                                                                                               1978

                                                                                                                      1980

                                                                                                                             1982

                                                                                                                                    1984

                                                                                                                                           1986

                                                                                                                                                  1988

                                                                                                                                                         1990

                                                                                                                                                                1992

                                                                                                                                                                       1994

                                                                                                                                                                              1996

                                                                                                                                                                                     1998

                                                                                                                                                                                            2000

                                                                                                                                                                                                   2002

                                                                                                                                                                                                          2004

                                                                                                                                                                                                                 2006
                                                                                                               Year
     Western Atlantic BFT Landings (weight)
                                                                                          (1950-2007)

     20000
                                                                                                                                                                                      All BFT-W (t)
     18000
                                                                                                                                                                                      US (t)
     16000                                                                                                                                                                            Canada (t)

     14000
                                                                                                                                                                                      Japan (t)
                                                                                                                                                                                      ALL Other (t)
     12000
mt




     10000


      8000


      6000


      4000


      2000


        0
             1950

                    1952

                           1954

                                  1956

                                         1958

                                                1960

                                                       1962

                                                              1964

                                                                     1966

                                                                            1968

                                                                                   1970

                                                                                          1972

                                                                                                 1974

                                                                                                        1976

                                                                                                               1978

                                                                                                                      1980

                                                                                                                             1982

                                                                                                                                    1984

                                                                                                                                           1986

                                                                                                                                                  1988

                                                                                                                                                         1990

                                                                                                                                                                1992

                                                                                                                                                                       1994

                                                                                                                                                                              1996

                                                                                                                                                                                     1998

                                                                                                                                                                                            2000

                                                                                                                                                                                                   2002

                                                                                                                                                                                                          2004

                                                                                                                                                                                                                 2006
                                                                                                               Year
                            Landings by Category
              2000
                                                                                                  Angling
              1800                                                                                LL/Trap

              1600                                                                                Purse Seine
                                                                                                  Harpoon
              1400                                                                                General

              1200
metric tons




              1000

               800

               600

               400

               200

                 0
                     1996   1997   1998   1999   2000   2001   2002   2003   2004   2005   2006   2007   2008
                       Commercial Landings by Area
              1400.0
                                                                               Gulf of Mexico (9-10)

              1200.0                                                           South Atlantic (8)
                                                                               Mid-Atlantic (7)
              1000.0                                                           Northeast (1-6)
metric tons




               800.0

               600.0

               400.0

               200.0

                 0.0
                       1996 1997 1998   1999 2000 2001   2002 2003 2004 2005    2006 2007 2008
           Ex-vessel Revenues by Category
                25
                                                                                                  Purse Seine
                                                                                                  Incidental
                20
                                                                                                  Harpoon
                                                                                                  General
$ in millions




                15


                10



                5


                0
                     1996   1997   1998   1999   2000   2001   2002   2003   2004   2005   2006    2007        2008
                                          Fishery Participation –
                                           Permits by Category
                                                                                                                       HMS Ch/HB
                    45000
                                                                                                                       HMS Angling
                                                                                                                       LL/Trap
                    40000
                                                                                                                       Purse Seine

                    35000                                                                                              Harpoon
                                                                                                                       General

                    30000
number of permits




                    25000


                    20000


                    15000


                    10000


                    5000


                       0
                            1996   1997   1998   1999   2000   2001   2002   2003   2004   2005   2006   2007   2008
     Fishery Participation –
Permits by Area for 2000 and 2008
                      15000
                                                                                         HMS CH/HB
                      14000
                                                                                         HMS Angling
                      13000
                                                                                         LL/incidental
                      12000                                                              Purse Seine
                      11000                                                              Harpoon
                      10000
  Number of permits




                                                                                         General
                       9000
                       8000
                       7000
                       6000
                       5000
                       4000
                       3000
                       2000
                       1000
                          0
                              2000 2008      2000 2008      2000 2008      2000 2008      2000 2008
                                NE (ME-CT)     MA (NY-VA)     SA (NC-GA)       Florida       Gulf,
                                                                                          Caribbean,
                                                                                            Other
Recreational Landings by Area
                 14000
                                                                     small medium
                 12000                                               large school
                                                                     school

                 10000
Number of fish




                 8000


                 6000


                 4000


                 2000


                    0
                         DE-VA




                                 DE-VA




                                         DE-VA




                                                 DE-VA




                                                          DE-VA




                                                                   DE-VA




                                                                              DE-VA
                         ME-CT




                                 ME-CT




                                         ME-CT




                                                 ME-CT




                                                          ME-CT




                                                                   ME-CT




                                                                              ME-CT
                         NY-NJ




                                 NY-NJ




                                         NY-NJ




                                                 NY-NJ




                                                          NY-NJ




                                                                   NY-NJ




                                                                              NY-NJ
                          2002    2003    2004    2005      2006     2007      2008

                                                         Data source: LPS (for ME-VA only)
Weekly recreational BFT landings by month and week from
  Ocean City, MD for June 1-early October, 2003-2008




                                     Cumulative weekly landings, 2003-2008
                         4000

                                      2003
                         3500
                                      2004
Numbers of Tuna Landed




                         3000
                                      2005
                                      2006
                         2500         2007
                                      2008
                         2000

                         1500

                         1000

                          500

                            0
                                2   9 16 23 30 7 14 21 28 4 11 18 25 1   8 15 22 29 6 13 20 27 3 10 17 24 1

                                     June         July       Aug          Sept         Oct        Nov    Dec
                         2008 Recreational and Commercial
                               Quota and Landings
                                                                   (in mt)
                  1400

                         2008 Quota                         1167
                  1200
                         2008 Landings
                  1000
    metric tons




                  800


                  600

                                                 381.5             336
                  400


                         119             183.4
                  200
                               54.6
                    0
                           School           LS/SM*            LM/G




*[Total mt landed=381.5: 305 mt (80%) LS and 76 mt SM
(20%)]

                                             Size Class                   2008 Avg Wt
                                             School                       40 lb (18 kg)*
                                             Large School                101 lb (46 kg)*
                                             Small Medium                159 lb (72 kg)*
                                             Large Medium/Giant          478 lb (217 kg)
                          2008 Recreational and Commercial
                                Quota and Landings
                                          (in mt and number of fish)
                   1400                                                                         9000
                                                                                                                            7670   2008 Quota
                          2008 Quota                                                            8000
                   1200
                                                           1167
                          2008 Landings                                                                6611                        2008 Landings
                                                                                                7000
                   1000
                                                                                                6000
                                                                                                                                    5378




                                                                               number of fish
     metric tons




                   800                                                                          5000
                                                                                                                     3785
                   600                                                                          4000
                                                                                                              3075
                                                  381.5           336                           3000
                   400
                                                                                                2000
                                                                                                                                           1519
                          119             183.4
                   200
                                54.6                                                            1000

                     0                                                                            0
                            School          LS/SM*           LM/G                                        School        LS/SM**         LM/G




                                                                                                   **[Total number landed=7,670: 6,606 LS (86%) and
*[Total mt landed=381.5: 305 mt (80%) LS and 76 mt SM
(20%)]                                                                                             1,064 SM (14%)]


                                            Size Class                   2008 Avg Wt
                                            School                       40 lb (18 kg)*
                                            Large School                101 lb (46 kg)*
                                            Small Medium                159 lb (72 kg)*
                                            Large Medium/Giant          478 lb (217 kg)
              GSL

        GMA

      MAB

GOM


                    MED
               Average Round Weights of Domestic Landings
                         vs. Imports, 1983-2007
                              Rod and Reel
               700




               650




               600




               550




               500
Weight in Lb




               450




               400


                                                                                                                                                                          Overall
               350                                                                                                                                                        Commercial
                                                                                                                                                                          Avg

                                                                                                                                                                          Rod and
               300                                                                                                                                                        Reel



               250                                                                                                                                                        Canada
                                                                                                                                                                          Imports



               200                                                                                                                                                        Med/E.Atl.
                                                                                                                                                                          Imports
                     83

                           84

                                 85

                                       86

                                             87

                                                   88

                                                         89

                                                               90

                                                                     91

                                                                           92

                                                                                 93

                                                                                       94

                                                                                             95

                                                                                                   96

                                                                                                         97

                                                                                                               98

                                                                                                                     99

                                                                                                                           00

                                                                                                                                 01

                                                                                                                                       02

                                                                                                                                             03

                                                                                                                                                   04

                                                                                                                                                         05

                                                                                                                                                               06

                                                                                                                                                                     07
                19

                          19

                                19

                                      19

                                            19

                                                  19

                                                        19

                                                              19

                                                                    19

                                                                          19

                                                                                19

                                                                                      19

                                                                                            19

                                                                                                  19

                                                                                                        19

                                                                                                              19

                                                                                                                    19

                                                                                                                          20

                                                                                                                                20

                                                                                                                                      20

                                                                                                                                            20

                                                                                                                                                  20

                                                                                                                                                        20

                                                                                                                                                              20

                                                                                                                                                                    20
               Average Round Weights of Domestic Landings
                         vs. Imports, 1983-2007
                                Harpoon
               700



               650



               600



               550



               500
Weight in Lb




               450



               400
                                                                                                                                                                                               Overall
                                                                                                                                                                                               Commercial
                                                                                                                                                                                               Avg
               350

                                                                                                                                                                                               Harpoon

               300


                                                                                                                                                                                               Canada
               250                                                                                                                                                                             Imports



               200                                                                                                                                                                             Med/E.Atl.
                                                                                                                                                                                               Imports
                  83

                         84

                                85

                                       86

                                              87

                                                     88

                                                            89

                                                                   90

                                                                          91

                                                                                 92

                                                                                        93

                                                                                               94

                                                                                                      95

                                                                                                             96

                                                                                                                    97

                                                                                                                           98

                                                                                                                                  99

                                                                                                                                         00

                                                                                                                                                01

                                                                                                                                                       02

                                                                                                                                                              03

                                                                                                                                                                     04

                                                                                                                                                                            05

                                                                                                                                                                                   06

                                                                                                                                                                                          07
                19

                       19

                              19

                                     19

                                            19

                                                   19

                                                          19

                                                                 19

                                                                        19

                                                                               19

                                                                                      19

                                                                                             19

                                                                                                    19

                                                                                                           19

                                                                                                                  19

                                                                                                                         19

                                                                                                                                19

                                                                                                                                       20

                                                                                                                                              20

                                                                                                                                                     20

                                                                                                                                                            20

                                                                                                                                                                   20

                                                                                                                                                                          20

                                                                                                                                                                                 20

                                                                                                                                                                                        20
    Average Round Weights of Domestic Landings
              vs. Imports, 1983-2007
                     Longline

               700



               650



               600



               550



               500
Weight in Lb




               450



               400


                                                                                                  Overall
               350                                                                                Commercial
                                                                                                  Avg

                                                                                                  Longline
               300



               250                                                                                Canada
                                                                                                  Imports



               200                                                                                Med/E.Atl.
                                                                                                  Imports
                     83



                           85



                                 87



                                       89



                                             91



                                                   93



                                                         95



                                                               97



                                                                     99



                                                                           01



                                                                                 03



                                                                                       05



                                                                                             07
                19



                          19



                                19



                                      19



                                            19



                                                  19



                                                        19



                                                              19



                                                                    19



                                                                          20



                                                                                20



                                                                                      20



                                                                                            20
                 Average Round Weights of Domestic Landings
                           vs. Imports, 1983-2007
                                 Purse Seine
               700


               650


               600


               550


               500
Weight in Lb




               450

                                                         Overall
               400                                       Commercial
                                                         Avg

               350
                                                         Purse Seine


               300

                                                         Canada
               250                                       Imports



               200                                       Med/E.Atl.
                                                         Imports
                   83

                   84

                   85

                   86

                   87

                   88

                   89

                   90

                   91

                   92

                   93

                   94

                   95

                   96

                   97

                   98

                   99

                   00

                   01

                   02

                   03

                   04

                   05

                   06

                   07
                19

                19

                19

                19

                19

                19

                19

                19

                19

                19

                19

                19

                19

                19

                19

                19

                19

                20

                20

                20

                20

                20

                20

                20

                20
                     BFT Import/Export Trends
                                                                BFT Imports by Flag Country                   Canada
                                   1000
                                                                                                              Spain
                                    800
                     Metric Tons



                                                                                                              Italy
                                    600                                                                       Mexico
                                    400                                                                       Others

                                    200                                                                       Total

                                      0
                                            1998 1999 2000 2001 2002 2003 2004 2005 2006 2007
                                                                             Year



                                          Percent of U.S. Atlantic BFT Exported
                          90%         85%           81%   85%    81%
              100%                            77%                      75%     76%
(by weight)




                                                                                     57%   60%
  Percent




               80%                                                                                      46%
               60%                                                                                44%
               40%
               20%
                0%
                     1996 1997               1998   1999 2000    2001 2002     2003 2004   2005   2006 2007
                                                                   Year
                                    Atlantic BFT Trade
                             Imports and Exports (mt)
              900
              800
              700
metric tons




              600
                                  U.S. Imports
              500
                                  Re-exports
              400
                                  U.S. Exports
              300
              200
              100
                0
                    1996   1997      1998        1999   2000   2001   2002   2003   2004   2005   2006   2007
              Atlantic BFT Adjusted Quotas,
                   Landings, and Trade
              3,000
                                                                                                          Quota
                                                                                                          U.S. Landings
                                                                                                          Angling
                                                                                                          Imports
              2,500
                                                                                                          Exports
                                                                                                          Re-Exports



              2,000
Metric Tons




              1,500




              1,000




               500




                 0
                      1996   1997   1998   1999   2000   2001   2002   2003   2004   2005   2006   2007
        International Reporting
A Complex Journey with the United States as a Runway




                                 May stay in Japanese storage for 1 year+
   Domestic Management Tools
• Quota distribution
   Per ATCA, the domestic quota equals the ICCAT-recommended U.S. TAC
    – % allocations by permit category (FMP)
    – Area (North/South) subquotas (General, Longline, Angling categories)
    – Time period subquotas (General category)
    – % limits on certain sizes (school and trophy BFT by recreational
       anglers)
• Effort controls
    – Retention limits (various size classes)
    – Restricted Fishing Days (General category)
• Time/area closures (Longline)
• Target catch requirements for incidental retention (Longline)
• Inseason actions (General, Charter/Headboat, Angling categories)
    – Increase/decrease retention limits
    – Close/reopen fishery
    What people are saying about
      decline in BFT landings
We’ve heard from fishermen and researchers that decline
 may be due to...

• distribution changes due to water temperature & ocean
  conditions
• change in availability of forage fish, such as herring
   – due to fishing, e.g., herring fishery
   – due to predation, e.g., by dogfish
• overfishing of BFT throughout the Atlantic, especially
  eastern Atlantic and Mediterranean
   – recruitment overfishing
   – growth overfishing
   – added impact of stock mixing
Atlantic BFT Catches per Decade
Fromentin & Powers, 2005: Atlantic bluefin tuna: population dynamics, ecology,
fisheries and management. Fish and Fisheries 2005, 6, 281-306.

								
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