Document of bibliographic reference 36335

BibliographicReference record

Type

Bibliographic resource

Type of document

Journal article

BibLvlCode

AS

Title

Inverse relationship between cod recruitment in the North Sea and young fish in the continous plankton recorder survey

Abstract

There is a significant (p<0.01) negative correlation between cod recruitment (age 1 year) and the numbers of young fish taken in the Continuous Plankton Recorder (CPR) Survey in the North Sea. This correlation is analysed with reference to hydrographic, climatic and biological variables in order to determine whether it results from opposite responses to physical forcing, trophic relationships or a combination of these. The results of correlation analyses are consistent with cod recruitment being determined mainly during the planktonic phase of development in the preceding year. Multiple regressions indicate that a combination of the North Atlantic Oscillation index in the preceding year and the abundance of CPR young fish is the pair of variables that provide the best fit to the data. The abundance of CPR young fish is best predicted by the Gulf Stream North Wall Index and the abundance of phytoplankton in the spring of the previous year. Opposite responses to climatic forcing and the regional environmental consequences are identified as of primary importance but interactions, possibly both predation and competition, occur between the planktonic stages of cod and both the planktonic stages of fish and the stocks from which they were derived.

WebOfScience code

https://www.webofscience.com/wos/woscc/full-record/WOS:000183403500014

Bibliographic citation

Lindley, J.A.; Reid, P.C.; Brander, K.M. (2003). Inverse relationship between cod recruitment in the North Sea and young fish in the continous plankton recorder survey. Sci. Mar. (Barc.) 67(S1): 191-200. https://dx.doi.org/10.3989/scimar.2003.67s1191

Topic

Marine

Is peer reviewed

true

Access rights

open access

Is accessible for free

true