Diet composition and quality for Calanus finmarchicus egg production and hatching success off south-west Iceland

Sigrun Jonasdottir, H.G. Gudfinnsson, A. Gislason, O.S. Astthorsson

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Egg production and hatching success of the copepod Calanus finmarchicus was measured during spring and summer in the waters south-west of Iceland. Egg-production rates varied greatly, both temporally and spatially, with highest average rates found at a station with low chlorophyll-a concentrations (0.4 mg m(-3)). Excluding this high production rate from statistical analysis, the remaining egg-production rates were found to be positively correlated with phytoplankton biomass, as well as with parameters representing healthy phytoplankton condition, food quality and diatom-type fatty acids. Hatching success of eggs was negatively correlated with some saturated and monounsaturated fatty acids related to phytoplankton senescence.
Original languageEnglish
JournalMarine Biology
Volume140
Issue number6
Pages (from-to)1195-1206
ISSN0025-3162
DOIs
Publication statusPublished - 2002

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