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

Appendices

Biology

Appendix 1
Appendix 2
Appendix 3

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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2018-01-02