Spatial and temporal aspects of the decline in cod (Gadus morhua L.) abundance in the Kattegat and eastern Skagerrak

ICES Journal of Marine Science

Volumn 60, Issue 1, 2003, Pages 32-37

  Svedäng, Henrik ^a   Bardon, Gwenola ^a,b  

^a INSTITUTE OF MARINE RESEARCH   (Sweden)

^b Ecole Natl Superieure d'A de R   (France)

Author keywords

Abundance; Cod; Distribution; Gadus morhua; Informal records; Logbook data; Temporal development

Indexed keywords

ABUNDANCE; GADOID; POPULATION DECLINE; SPATIOTEMPORAL ANALYSIS;

KATTEGAT; NORTH SEA; SKAGERRAK;

GADUS; GADUS MORHUA; NEPHROPS;

EID: 0037301357     PISSN: 10543139     EISSN: None     Source Type: Journal    
DOI: 10.1006/jmsc.2002.1330     Document Type: Article

References (22)

1. Bagge, O., and Steffensen, E. 1980. Growth pattern in cod otoliths as indicator for mixing of stocks. ICES CM 1980/J: 12.
2. Danielssen, D. S. 1969. On the migrations of the cod in the Skagerrak shown by tagging experiments in the period 1954-65. Fiskerdirektoratets Skrifter Serie Havundersøkelser, 15: 331-338.
3. Danielssen, D. S., and Gjøsaeter, J. 1994. Release of 0-group cod, Gadus morhua L., on the southern coast of Norway in the years 1986-1989. Aquaculture and Fisheries Management, 25: 129-142.
4. Fromentin, J.-M., Stenseth, N. C., Gjøster, J., Johannessen, T., and Planque, B. 1998. Long-term fluctuations in cod and pollack along the Norwegian Skagerrak coast. Marine Ecology Progress Series, 162: 265-278.
5. Godø, O. R. 1995. Transplantation-tagging-experiments in preliminary studies of migration of cod off Norway. ICES Journal of Marine Science, 52: 953-960.
6. Hagström, O., Larsson, P-O., and Ulmestrand, M. 1990. Swedish cod data from the international young fish surveys 1981-1990. ICES CM 1990/G: 65.
7. Harley, S. J., Myers, R. A., and Dunn, A. 2001. Is catch-per-unit-effort proportional to abundance? Canadian Journal of Fisheries and Aquatic Science, 58: 1760-1772.
8. Hutchings, J. A. 1996. Spatial and temporal variation in the density of northern cod and a review of hypotheses for the stock's collapse. Canadian Journal of Fisheries and Aquatic Science, 53: 943-962.
9. Hutchings, J. A., and Ferguson, M. 2000. Temporal changes in harvesting dynamics of Canadian inshore fisheries for northern Atlantic cod, Gadus morhua. Canadian Journal of Fisheries and Aquatic Science, 57: 805-814.
10. ICES. 1998. Report of the working group on the assessment of demersal stocks in the North Sea and Skagerrak. ICES CM 1998/Assess: 7.
11. ICES. 2001a. Report of the working group on the assessment of demersal stocks in the North Sea and Skagerrak. ICES CM 2001/ACFM: 8.
12. ICES. 2001b. Report of the Baltic fisheries assessment working group. ICES CM 2001/ACFM: 14.
13. Munk, P., Larsson, P.-O., Danielssen, D. S., and Moksness, E. 1995. Larval and small juvenile cod Gadus morhua concentrated in the highly productive areas of a shelf break front. Marine Ecology Progress Series, 125: 21-30.
14. Munk, P., Larsson, P.-O., Danielssen, D. S., and Moksness, E. 1999. Variability in frontal zone formation and distribution of gadoid fish larvae at the shelf break in the northeastern North Sea. Marine Ecology Progressive Series, 177: 221-233.
15. Myers, R. A., Hutchings, J. A., and Barrowman, N. J. 1997. Why do fish stocks collapse? The example of cod in Atlantic Canada. Ecological Applications, 7: 91-106.
16. Neis, N., Schneider, D. C., Felt, L., Haedrich, R. L., Fischer, J., and Hutchings, J. A. 1999. Fisheries assessment: what can be learned from interviewing resource users? Canadian Journal of Fisheries and Aquatic Science, 56: 1949-1963.
17. Pihl, L., and Ulmestrand, M. 1993. Migration pattern of juvenile cod (Gadus morhua) on the Swedish west coast. ICES Journal of Marine Science, 50: 63-70.
18. Smith, S. J., and Page, F. H. 1996. Associations between Atlantic cod (Gadus morhua) and hydrographic variables: implications for the management of 4VsW cod stock. ICES Journal of Marine Science, 53: 597-614.
19. Sokal, R. S., and Rohlf, F. J. 1981. Biometry. W. H. Freeman, San Francisco. 859 p.
20. Svedäng, H. 2003. The inshore demersal fish community on the Swedish Skagerrak coast: regulation by recruitment from offshore sources. ICES Journal of Marine Science, 60: 23-31.
21. Svedäng, H., Svedäng, M., Frohlund, K., and Øresland, V. 2001. Analysis of cod stock development in the Skagerrak and Kattegat. Fiskeriverkets Havsfiskelaboratoriums Torskprojekt, delrapporter 1-3. FINFO 2001: 1. (In Swedish with English summary.)
22. Ulmestrand, M., and Larsson, P.-O. 1991. Experiments with a square mesh window in the top panel of a Nephrops trawl. ICES CM 1991/B: 50.