Cod and haddock spawning on Georges Bank in relation to water residence times

The seasonal and geographical patterns of spawning for Georges Bank cod ( Gadus morhua ) and haddock ( Melanogrammus aeglefinus ) are estimated using composite distributions of stage I eggs derived from the Marine Resources Monitoring, Assessment and Prediction (MARMAP) data set (1977–1987). The inf...

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Bibliographic Details
Published in:Fisheries Oceanography
Main Authors: Page, F. H., Sinclair, M., Naimie, C. E., Loder, J. W., Losier, R. J., Berrien, P. L., Lough, R. G.
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 1999
Subjects:
Gadus morhua
Online Access:http://dx.doi.org/10.1046/j.1365-2419.1999.00108.x
https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-2419.1999.00108.x
https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-2419.1999.00108.x
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Summary:The seasonal and geographical patterns of spawning for Georges Bank cod ( Gadus morhua ) and haddock ( Melanogrammus aeglefinus ) are estimated using composite distributions of stage I eggs derived from the Marine Resources Monitoring, Assessment and Prediction (MARMAP) data set (1977–1987). The inferred mean spawning locations are compared with patterns in particle residence times derived from a three‐dimensional prognostic circulation model that estimates the tidal and seasonal mean circulation. The comparisons indicate that cod and haddock spawning occurs at times and locations characterized by model residence times in excess of 35 d. The results are discussed in the context of fish population regulation theory, particularly the member/vagrant hypothesis and the concept of abundance‐dependent vagrancy.

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