Blue shark (Atlantic and Pacific populations) COSEWIC assessment and status report: appendices

Appendices

Biology

Appendix 1

Catch per unit of effort of blue shark (kg/1 000 hooks) broken down by season (quarter) inBritish Columbia’s hook and line fleet. Data from observer logs (2001-2003)
Quarter Hooks Catch (kg) kg/1000 hooks
1 6 437 655 45 0.01
2 20 907 429 158 0.01
3 13 899 962 12 389 0.89
4 7 150 534 4 216 0.59


Appendix 2: Polygon Area Used to Determine Extent of Occurrence in Pacific Waters

Polygon area used to determine extent of occurrence in Pacific waters.

Polygon surrounds all known catch records from 1996-2004.


Appendix 3

Blue shark observations on Canada’s Pacific coast from groundfish research surveys summarized from published data reports and the groundfish biological (GFBIO) database
Year Area # Sharks Weight (kg) Sex Fork Length (mm) Total Length (mm) Source
1979 5E 3 ~20 kg each ?     Carter and Leaman
1981 5E 1   ?     McCarter
1999 3C 1   F   1330 GFBIO
1999 3C 1   M   980 GFBIO
1999 3C 1   M   1040 GFBIO
2000 5E 1   F   2180 GFBIO
2000 5E 1   F   1640 GFBIO
2001 3D 1   M 1590   GFBIO
2001 3D 1   F   1030 GFBIO
2001 3D 1 7.12 F 1260   GFBIO
2001 5A 1   F 1550   GFBIO
2004 3C 1 11.1 ?   1440 GFBIO

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