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Demersal fish recruitment processes in the Irish Sea – generating and testing hypotheses based on high-resolution data on eggs, larvae and prey collected since 1995 - MF1106

Summary Objective:
Determine the stages in the early life history during which cod and haddock suffer differential mortality using an existing set of data on eggs and larvae of demersal fish in the Irish Sea, together with contemporaneous data on zooplankton prey of the larvae and coupled bio-physical models. Generate and test different possible hypotheses (such as spatial and temporal match-mismatch with suitable prey, different responses to physical environmental drivers, or direct interactions between species) that can be used to explain the difference in productivity of Irish Sea cod and haddock stocks observed over recent years.

Key Customer Purpose:
To investigate whether changes in fish recruitment associated with mortality at early stages plays an important role in controlling the recovery potential of cod and haddock, allowing for the development of effective management strategies for the Irish Sea demersal fisheries.
Project Documents
• EVID4 - Final project report : MF1106 Final report1   (15480k)
• TPS - Two Page Summary : Two Page Summary MF1106 24 7 13 final   (237k)
• Two Page Summary : MF1106 Two Page Summary: How does the environment impact on stock recruitment failure or success? – Cod versus haddock in the Irish Sea.   (303k)
Time-Scale and Cost
From: 2009

To: 2012

Cost: £240,000
Contractor / Funded Organisations
Sea Fish Stocks              
Stock Conservation              
Fields of Study
Marine Fisheries