The present diverse project is developed to co-ordinate and support the
international research activities directed towards the most important
questions related to the biology and exploitation of the highly
migratory and straddling redfish resources in the Irminger Sea.
It is divided into the three main workpackages:
1.- Population structure
This workpackage focuses on the identification and delimitation possible
distinct stocks of the redfish occurrences in the Irminger Sea and
adjacent waters. Currently there is an important controversy among
researchers regarding the number of stocks inhabiting the studied area.
This problem has prevented a proper management of the resource. The
workpackage deal this problem from three different research lines:
Morphologic analyses, Otolith shape and elemental contents, and Genetic analyses.
2.- Reproductive strategies
The redfish exploited in the Irminger Sea is the mature part of the
population. It remaind unknown the recruitment proccess, the location of
the nusery area, size and age at maturity and fecundity. All this are
key biological parameters dealt within this Workpackage.
3.- Abundance and demography
Due to the its particular distribution, the abundance estimation is
difficult. It will be conducted assessment surveys with new
methodologies for a better estimation of the abundance. Redfish ageing
is also dealt within this workpackage. The Institute of Marine
Research (Vigo) act as coordinator for the workpackage 2 and with
important contribution in workpackage 1. Our contribution in WP 3 is
restricted to age determination.
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