Working draft



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WORKING DRAFT


Information describing chub mackerel (Scomber japonicus) fisheries relating to the South Pacific Regional Fishery Management Organisation



WORKING DRAFT

04 May 2007


2 Overview 2

3 Taxonomy 3

3.1 Phylum 3

3.2 Class 3

3.3 Order 3

3.4 Family 3

3.5 Genus and species 3

3.6 Scientific synonyms 3

3.7 Common names 3

3.8 Molecular (DNA or biochemical) bar coding 3

4 Species Characteristics 3

4.1 Global distribution and depth range 3

4.2 Distribution within South Pacific area 4

4.2.1 Inter-annual and/or seasonal variations in distribution 4

4.2.2 Other potential areas where the species may be found 5

4.3 General habitat 5

4.4 Biological characteristics 5

4.5 Population structure 7

4.6 Biological productivity 7

4.7 Role of the species in the ecosystem 7



5 Fisheries characterisation 7

5.1 Distribution of fishing activity 7

5.2 Fishing technology 8

5.3 Catch history 8

5.4 Status of stocks 11

5.5 Threats 11

5.6 Fishery value 11

6 Current Fishery Status and Trends 11

6.1 Stock size 11

6.2 Estimates of relevant biological reference points 12

6.2.1 Fishing mortality 12

6.2.2 Biomass 12

6.2.3 Other relevant biological reference points 12



7 Impacts of fishing 12

7.1 Incidental catch of associated and dependent species 12

7.2 Unobserved mortality of associated and dependent species 12

7.3 Bycatch of commercial species 12

7.4 Habitat damage 12

8 Management 13

8.1 Existing management measures 13

8.2 Fishery management implications 13

8.3 Ecosystem considerations 13



9 Research 13

9.1 Current and ongoing research 13



9.2 Research needs 13

10 Additional remarks 14

11 References 14


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