Does spatil match-mismatch of spawning and enviromental conditions affect recruitment in Baltic cod.

MacKenzie, B.R., Plikshs, M., Köster, Friedrich and Hinrichsen, Hans-Harald, eds. (1999) Does spatil match-mismatch of spawning and enviromental conditions affect recruitment in Baltic cod. Open Access . ICES Council Meeting Papers, Y:16 . ICES, Kopenhagen, Denmark, 19 pp.

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Abstract

Spawning sites for cod in the central and eastern Baltic Sea (ICES Subdivisions 25-32) are located in several deep basins. Environmental conditions (e. g., oxygen concentrations) for successful egg development in these basins differ within and among years. Spatial distributions of adult cod from research vessel surveys relative to these spawning sites also differ between years. These observations suggest that the spawning stock may sometimes be distributed suboptimally with respect to the environmental conditions that allow successful egg development. We test this hypothesis by comparing reproductive success (recruits/egg production) under assumptions of both environmental homogeneity and heterogeneity at cod spawning sites.

Document Type: Proceedings
Research affiliation: OceanRep > GEOMAR > FB3 Marine Ecology > FB3-EV Marine Evolutionary Ecology
Refereed: No
Date Deposited: 18 Feb 2008 17:24
Last Modified: 29 Aug 2019 07:24
URI: http://oceanrep.geomar.de/id/eprint/1006

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