Marine Debris Summary 2006_19Jul07_JM edits

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					2 0 0 6                       Northern Territory Marine Debris
                              Monitoring Program 2006
Results
                              Welcome to the 2006 summary of the        marine debris continues to be along the
17 sites                      NT Marine Debris Program. This            coast and islands on the west to
                              program is an extension of the lWWF       northwest side of the Gulf of
32 km of beach                                                          Carpentaria.
                              Marine Debris Monitoring Program, first
2,880 kg of debris            established in 2000 in northern
                              Australia. The program is now being       What type of litter?
285 nets                      undertaken by NRETA, in partnership       Most of the marine debris collected in
                              with Indigenous communities, rangers      2006 was made up of fishing nets, net
21,131 items                  and Conservation Volunteers Australia.    fragments and other plastics. The most
                              In 2006, beach debris surveys were        common items counted were ropes,
10 entanglements              completed at 17 sites across the NT,      thongs, bottles and bottle tops. The
                              including Garig Gunak Barlu National      total number of nets counted was low
                              Park, Elcho Island, Cape Arnhem,          compared to other items, however, they
41.2 % Nets                   Groote Eylandt and the Sir Edward         contributed over 40% of the total weight
                              Pellew Islands (Vanderlin Island).        of marine debris collected.
39.7 % Other plastic
                              How much was collected?                   Where is the debris from?
6.2 % Rubber
                              Over 32 km of sandy beaches were          The barcodes from 60 items, mostly
5.8 % Glass                   surveyed this year, and we collected      bottles, indicated that 95% were made
                              more than 21,000 individual items and     in Asia, 3% in Australia and 2% in
4.7 % Paper/wood              fragments, weighing over 2,800 kg in      Europe. Increased importation of
                              total. The total amount of debris per     foreign goods into local stores will
2.3 % Metal                   kilometre is down from previous years,    make identifying sources of marine
                              and the greatest accumulation of          debris more difficult in the future.
0.1 % Cloth

                                                                    kg per km
                                                            1 6 8            1 6 0




                                                                                                  8 9

                                      5 6




                                     2003                   2004             2005                 2006
                                   (8 Sites)              (16 Sites)       (10 Sites)           (17 Sites)



   Photo by S.Penny (NRETA)
                                                      1
   How much marine debris ?                                       Top 10 items counted
  Groote Eylandt                178.33 kg per km                                        number     % of total
  Cape Arnhem*                   75.08 kg per km              1   Rope                    3050        18.8%
  Vanderlin Island               72.92 kg per km              2   Footwear/thongs         1787        11.0%
  Elcho Island                   50.57 kg per km              3   Bottle tops/caps        1590          9.8%
  Cobourg Peninsula              48.74 kg per km              4   Plastic fragments       1558          9.6%

  [weight of debris collected: kg per km]                     5   Clear bottles           1226          7.6%
* underestimate, some nets missing                            6   Coloured bottles        1089          6.7%
                                                              7   Other hard plastic       899          5.6%
                              Ghost Nets                      8   Buoys/floats             849          5.2%
                              Gill nets (code GR24)           9   Glass bottles            641          4.0%
                              continue to be the most
                              frequently found fishing       10   Cups/ plates/ trays      469          2.9%
                              nets and this year were
                              associated with the                 Top 10 items weighed
                              highest number of
                              entanglements.                                               kg     % of total
                              The longest net (64m)           1   Nets                  1184          43.4%
                              was found at Popham
                                                              2   Rope                   365          13.4%
                              Bay, Cobourg Peninsula.
                              Around 86% of identifiable      3   Glass bottles          145           5.3%
                              nets originated from            4   Coloured bottles       133           4.9%
                              foreign vessels or were
                              manufactured overseas.          5   Timber                 133           4.9%
                              Unfortunately, the origin of    6   Footwear/thongs        126           4.6%
                              63% of nets remains
                                                              7   Cartons/ baskets       107           3.9%
                              unknown. There were 10
                              entanglements discovered        8   Other hard plastic      92           3.4%
HOW TO CONTACT
US:                           in 2006, including four         9   Buoys/floats            68           2.5%
                              hawksbill turtles, a
                              flatback turtle, two           10   Clear bottles           50           1.8%
Location
                              unknown turtles, a
NT Marine Debris Program
NRETA (Marine)                crocodile, crabs and fish.
Arafura Timor Research
Facility                      We wish to thank all
23 Ellengowan Drive           Traditional Owners,
Brinkin NT 0810               Rangers, coordinators
                              and volunteers who
F a x : +61(0)8 8920 9222
                              participated or helped us
Email:                        in conducting the 2006
marine.nreta@nt.gov.au        surveys. We look forward
                                                                                        Photo by S.Penny (NRETA)
                              to everyone participating
Web:
www.nt.gov.au/marine          in 2007 and to the
                              commencement of new
Postal address:               surveys in the Tiwi Islands
Marine Biodiversity Group     and Blue Mud Bay.
Department of Natural
Resources Environment &
the Arts
PO Box 496
Palmerston NT 0831

                                                      2
                  Photo by S.Hartley




Where did we survey?                         How many debris items
                                                 did we find?
8 km of beach at
Malkayubirra Beach                                                                   2831
(6 Mile Beach)

What did we find?
                                                                                              953
4,213 items
(527 items per km)                                  316
                                                            53     55
                                            1                              4

1,427 kilograms                            Cloth   Glass   Metal   Nets   Paper   Plastic Rubber

(178 kg per km)
55 nets & fragments
(7 nets per km)                                    Top 10 items counted
                                            1 Footwear/thongs                  951      22.6%
6 entanglements                             2 Bottle tops/caps                 884      21.0%
                                            3 Coloured bottles                 688      16.3%
                                            4 Clear bottles                    556      13.2%
                                            5 Glass bottles                    286          6.8%
                                            6 Cups/ plates/ trays              209          5.0%
                                            7 Lighters                         149          3.5%
                                            8 Buoys/floats                     125          3.0%
Crabs      Fish       Hawksbill
                                            9 Oil bottles                       97          2.3%
                       Turtles*
                                           10 Nets                              55          1.3%
   (*critically endangered)

                                       3
       How many kilograms of
         debris did we find?

                           994.0




                                            312.0

          60.0                                        55.7
 0.1                4.0             0.9                                                          Photo by S.Hartley (ALC)

Cloth     Glass    Metal   Nets    Paper    Plastic Rubber




       Top 10 items weighed (kg)                                   Where does the debris
                                                                       come from?
  1 Nets                                  994.0     69.7%
  2 Cartons/ buckets/baskets               67.1       4.7%
  3 Other hard plastic                     60.3       4.2%       Singapore                             China
  4 Glass bottles                          57.8       4.1%
  5 Footwear/thongs                        55.5       3.9%
  6 Rope                                   40.9       2.9%                                                  Australia
  7 Coloured bottles                       34.3       2.4%                                                 Austria
                                                                                                          India
  8 Clear bottles                          21.8       1.5%                                             Vietnam
                                                                        Indonesia
  9 Fishing line                           17.8       1.2%
10 Bait bags                               16.2       1.1%

 Other items of interest
 Paint rollers
 Computer parts



 Where are the nets made?
                                                                        Top 10 net types
                             Thailand                                  * Refer to The Net Kit for net details
                 Korea
                                    Korea/Taiwan
                                         Indo/Taiwan               1   GR24             Gill             24.8%
                                                                   2   Unknown                           10.6%
                                               Japan/Korea
                                                                   3   BL43             Trawl             6.2%
                                                Aust /Indo         4   BL19             Gill              3.5%
                                               China
                                                                   5   GR26             Trawl             3.5%
                                             Australia             6   BL37             Trawl             3.5%
       Taiwan
                                          Indonesia                7   WT29             Bait              2.7%
                                                                   8   BL03             Trawl             1.8%
                                                                   9   GR33             Trawl             1.8%
                                                                  10   BL11             Trawl             1.8%


                                                             4
             Photo by K.Edyvane (NRETA)




Where did we survey?                               How many debris items
9 km of beach at
                                                       did we find?
Cape Arnhem                                                                             8915


What did we find?
10,454 items
(1,162 items per km)                                                                             1016
                                               43      288      53     184     39

675 kilograms                                 Cloth    Glass   Metal   Nets   Paper    Plastic Rubber
(108 kg per km)
184 nets & fragments
(12 nets per km)
                                                      Top 10 items counted
                                               1    Rope                            1210       25.6%
                                               2    Hard plastic fragments           653       13.8%
                                               3    Footwear/thongs                  606       12.8%
1 entanglement                                 4    Cups/ plates/ trays              250        5.3%
                                               5    Coloured bottles                 220        4.7%
                                               6    Clear bottles                    199        4.2%
                                               7    Bottle tops/caps                 185        3.9%
                                               8    Nets                             184        3.9%
                                               9    Foam plastic packaging           175        3.7%
      Flatback Turtle*
       (* Vulnerable)                         10    Cartons/buckets/baskets           173      3.7%


                                          5
       How many kilograms of
         debris did we find?

                                   504.3




                                              80.6
50.0              38.9
        11.5               9.4                          0.35

Glass   Metal     Nets    Paper   Plastic Rubber      Cloth                            Photo by K.Edyvane (NRETA)




   Top 10 items weighed (kg)
 1 Rope                               154.5       13.4%
 2 Coloured bottles                        94.0   19.3%
 3 Footwear/thongs                         49.2   10.1%
 4 Nets                                    38.9    8.0%
 5 Glass bottles                           32.2      6.6%
 6 Cartons/ buckets/baskets                20.0      4.1%
 7 Fishing line                            20.0      4.1%
 8 Oil bottles                             15.3      3.1%
 9 Hard plastic fragments                  12.0      2.5%
10 Clear bottles                           10.5      2.2%

Other Items of Interest                                                                      Photo by Andrew (CVA)

Computer circuit boards




Where are the nets made?
                                                                         Top 10 net types
                                                                        * Refer to The Net Kit for net details
               Thailand
                                                                    1   Unknown                         81.70%
                                            Korea/Tai
                                              wan
                                                                    2   WT15             Gill            1.20%
   Korea
                                                                    3   GR24             Gill            0.80%
                                                                    4   BL19             Gill            0.80%
                                              Indo/Taiwan           5   GY04             Trawl           0.80%
    Taiwan                                Japan/Kor                 6   GR68             Trawl           0.80%
                                       Vietnam
                                             ea                     7   BL43             Trawl           0.40%
             Indonesia            Australia
                                                                    8   BL03             Trawl           0.40%
                                                                    9   WT11             Trawl           0.40%
                                                                   10   BL40             Trawl           0.40%


                                                               6
                 Photo by N.Smit (NRETA)




Where did we survey?                                How many debris items
                                                        did we find?
3.1 km of beach at
Gitan Beach and
Banthula Beach                                                                         1624



What did we find?
1,878 items
                                                                                                130
(605 items per km)                              4       39      20     31      30

                                               Cloth   Glass   Metal   Nets   Paper    Plastic Rubber
159 kilograms
(52 kg per km)
31 nets & fragments
                                                       Top 10 items counted
(10 nets per km)                                1 Hard plastic fragments            570       30.4%
                                                2 Rope                              494       26.4%
0 entanglements
                                                3 Bottle tops/caps                  152       8.1%
                                                4 Buoys/floats                      133       7.1%
                                                5 Footwear/thongs                   126       6.7%
                                                6 Clear bottles                       99      5.3%
                                                7 Coloured bottles                    56      3.0%
                                                8 Glass bottles                       35      1.9%
                                                9 Lighters                            35      1.9%
                                               10 Nets                                31      1.7%


                                           7
       How many kilograms of
         debris did we find?
                                              94.4




                                     27.6
                             11.7                      11.7
           5.5      7.9
 0.0

Cloth     Glass    Metal     Nets   Paper    Plastic Rubber
                                                                                          Photo by N.Smit (NRETA)




   Top 10 items weighed (kg)
 1 Rope                                     58.0     36.5%
 2 Timber                                   27.6     17.4%
 3 Nets                                     11.8      7.4%
                                                                                          Photo by N.Smit (NRETA)
 4 Footwear/thongs                          11.5      7.2%
 5 Buoys/floats                             10.8     6.8%
 6 Hard plastic fragments                    9.3     5.9%
 7 Other metal items                         7.4     4.7%
 8 Cartons/ buckets/baskets                  6.7     4.2%
 9 Glass bottles                             5.5     3.5%
10 Clear bottles                             3.6     2.3%

Other items of interest
Oil filters
Fishing reels                                                                             Photo by N.Smit (NRETA)




Where are the nets made?
                                                                        Top 10 net types
                           Korea Thailand                              * Refer to The Net Kit for net details

        Taiwan                                Korea/Taiwan
                                                                   1   Unknown                         30.20%
                                                                   2   GR24             Gill           14.00%
                                                                   3   WT15             Gill            9.30%
                                                                   4   WT10             Trawl           4.70%
                                                Indo/Taiwan        5   BL11             Trawl           2.30%
                                              China                6   BL27             Trawl           2.30%
       Indonesia                            Philippines
                                                                   7   WT26             Trawl           2.30%
                                Australia
                                                                   8   BL40             Trawl           2.30%
                                                                   9   GR47             Trawl           2.30%
                                                                  10   BL04             Trawl           2.30%


                                                              8
          Photo by S.Penny (NRETA)




Where did we survey?                       How many debris items
0.7 km of beach at
                                               did we find?
Goat Point,
Vanderlin Island                                                                    385


What did we find?
477 items
                                                  30                                         39
(681 items per km)                                        4      13       6

                                         Cloth   Glass   Metal   Nets   Paper   Plastic Rubber
45 kilograms
(64 kg per km)
13 nets & fragments
                                                 Top 10 items counted
(18 nets per km)
                                          1 Clear bottles                     115         24.1%

0 entanglements                           2 Hard plastic fragments            103         21.6%
                                          3 Buoys/floats                       40         8.4%
                                          4 Rope                               30         6.3%
                                          5 Insulation                        24          5.0%
                                          6 Footwear/thongs                    20         4.2%
                                          7 Coloured bottles                  20          4.2%
                                          8 Glass bottles                     20          4.2%
                                          9 Bottle tops/caps                   19         4.0%
                                         10 Other rubber                       19         4.0%


                                     9
   How many kilograms of
     debris did we find?
                                           18.3



                                 10.5

         6.9              7.3


                                                      1.8
                 0.1
                                                                                        Photo by S.Penny (NRETA)
Cloth   Glass   Metal     Nets   Paper    Plastic Rubber




   Top 10 items weighed (kg)                                     Where does the debris
                                                                     come from?
 1 Timber                                10.5     23.4%
 2 Nets                                   7.3     16.3%
 3 Glass bottles                          6.0     13.3%                                        China
 4 Buoys/floats                           5.0     11.1%
 5 Clear bottles                          4.5     10.0%
 6 Hard plastic fragments                 4.3      9.5%
 7 Insulation                             1.6      3.4%
 8 Footwear/thongs                        1.5      3.3%
 9 Other hard plastic                     1.2      2.7%                                                 Malaysia
                                                                                                    Thailand
10 Light bulbs/fluro tubes                0.9      2.0%          Singapore
                                                                                              Indonesia




 Where are the nets made?
                                                                       Top 10 net types
                                                                      * Refer to The Net Kit for net details
                 Taiwan
                                        Korea/Taiwan
                                                                  1   BL05             Trawl           21.4%
   Indonesia                                                      2   GY02             Trawl           14.3%
                                                  Indo/Taiwan     3   BL41             Trawl           14.3%
                                                                  4   GR24             Gill             7.1%
                                                                  5   BL40             Trawl            7.1%
                                                                  6   BL43             Trawl            7.1%
                                                                  7   BL07             Trawl            7.1%
                                                                  8   WT18             Trawl            7.1%
                 Australia
                                                                  9   BL01             Trawl            7.1%
                                                                 10   BL02             Trawl            7.1%


                                                            10
Where did we survey?
11.7 km of beach at:
Smith Point                            How many debris items
Danger Point                               did we find?
Record Point
Victoria Settlement
Sandy Island No. 1                                                             3814



What did we find?
4,394 items                            11     177      89     86       124               93
(376 items per km)                   Cloth    Glass   Metal   Nets   Paper     Plastic Rubber

571 kilograms
(49 kg per km)
86 nets & fragments                          Top 10 items counted
(7 nets per km)                       1 Rope                                 1314     30.0%
                                      2 Other hard plastic                    875     20.0%
                                      3 Buoys/floats                          391     8.9%
                                      4 Bottle tops/caps                      350     8.0%
3 entanglements                       5 Clear bottles                        257      5.9%
                                      6 Hard plastic fragments                231     5.3%
                                      7 Glass bottles                        149      3.4%
                                      8 Timber                                118     2.7%
                                      9 Coloured bottles                     105      2.4%
        Estuarine    Unknown
                                     10 Plastic sheet & fibre straps          99      2.3%
        Crocodile     Turtles

                                11
       How many kilograms of
         debris did we find?

                                              214.2

                           153.2


                                   88.3                                                   Photo by S.Penny (NRETA)

          45.0      41.5
                                                        28.2
 0.9

Cloth   Glass    Metal     Nets    Paper     Plastic Rubber




       Top 10 items weighed (kg)
  1 Nets                                  153.2       26.8%
  2 Rope                                  110.6       19.4%
  3 Timber                                 86.8       15.2%                                Photo by N.Smit (NRETA)
  4 Glass bottles                          43.7        7.6%
  5 Drums                                  38.4       6.7%
  6 Buoys/floats                             37       6.5%
  7 Other hard plastic                     29.3       6.1%
  8 Other rubber                           19.2       3.4%
  9 Cartons/buckets/baskets                12.8       2.2%
10 Clear bottles                             9.9      1.7%

 Other items of interest
 Oil filters
 900L water tank
                                                                                          Photo by S.Penny (NRETA)




 Where are the nets made?
                                                                          Top 10 net types
                                                                         * Refer to The Net Kit for net details
                                   Thailand
            Korea
                                              Korea/Taiw             1   Unknown                        29.70%
                                                  an                 2   GR24             Gill            3.8%
                                                 Indo/Taiwan         3   BL03             Trawl           3.2%
                                                                     4   BL01             Trawl           2.7%
 Taiwan                                             Japan/Korea
                                                                     5   WT11             Trawl           2.7%
                                                    Korea/Phil
                                                   Philippines       6   GR29             Trawl           2.2%
                                                                     7   GY04             Trawl           2.2%
          Indonesia                       Australia
                                                                     8   GR66             Gill            2.2%
                                                                     9   BL21             Gill            1.6%
                                                                    10   BL19             Gill            1.6%


                                                               12

				
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