Information briefs and risk analyses for species under consideration ...
Information briefs and risk analyses for species under consideration ...
Information briefs and risk analyses for species under consideration ...
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14 The total reported catch <strong>for</strong> each of the cited fishing years is shown in the following<br />
table.<br />
2002/03 2003/04 2004/05 2005/06 2006/07<br />
656 t 695 t 684 t 606 t 485 t<br />
15 The percentage of total reported catch <strong>for</strong> each fishing year discarded or l<strong>and</strong>ed is<br />
shown in the following table.<br />
2002/03 2003/04 2004/05 2005/06 2006/07<br />
Discarded 46% 48% 30% 33% 27%<br />
L<strong>and</strong>ed 54% 51% 69% 67% 73%<br />
16 The percentage of reported l<strong>and</strong>ed catch <strong>for</strong> each fishing year l<strong>and</strong>ed as dressed,<br />
green, or meal is shown in the following table (assuming discarded catch is reported<br />
as green).<br />
2002/03 2003/04 2004/05 2005/06 2006/07<br />
Dressed 41% 32% 37% 30% 31%<br />
Headed <strong>and</strong> gutted 6% 3% 3% 3% 3%<br />
Green 46% 49% 31% 33% 27%<br />
Meal 0% 13% 19% 28% 26%<br />
Livers 7% 2% 10% 6% 13%<br />
17 Although almost 40 target fisheries report seal shark as bycatch, the ling, hoki <strong>and</strong><br />
orange roughy target fisheries dominate the estimated catch of seal shark (35%, 27%<br />
<strong>and</strong> 17% respectively over the last 5 years). Targeted fishing accounted <strong>for</strong> 10% of the<br />
estimated seal shark catch in 2004/05 but averages less than 2.5% over the last five<br />
fishing years <strong>and</strong> in 2006/07 accounted <strong>for</strong> only 0.25%.<br />
18 Seal shark is taken by several methods. The percentage of estimated catch of seal<br />
shark taken by the various methods is shown in the table below. The majority is taken<br />
by bottom trawl <strong>and</strong> set net.<br />
Method 2002/03 2003/04 2004/05 2005/06 2006/07<br />
Bottom longline 6.8% 9.0% 10.2% 15.1% 15.6%<br />
Bottom trawl 52.0% 56.2% 39.7% 49.5% 53.8%<br />
Crab potting - - - - 0.2%<br />
Drop / dahn lines 0.4% 0.3% 0.3% 0.5% 0.2%<br />
Midwater trawl 0.3% 1.3% 1.1% 1.1% 2.3%<br />
Set net 39.4% 33.1% 48.6% 33.8% 28.0%<br />
Trot line 1.2% 0.1% - - -<br />
19 In the last decade, seal shark has become an important bycatch <strong>species</strong>, more recently<br />
marketed <strong>for</strong> its flesh. The estimated commercial catch of seal shark increased from<br />
1989-90 through 2004-05 <strong>and</strong> has decreased in the last two years. This may reflect<br />
changes in stock abundance, or alternatively, changes in reporting of seal shark<br />
68
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