Photoperiod control of puberty in farmed fish: Development of new techniques and research into underlying physiological mechanisms

Objective

Precocious puberty in farmed fish is a major constraint to aquacultural production efficiency. Currently, production losses in salmonid and sea bass industries are estimated to exceed 30 million Europe. An array of genetic, environmental, nutritional, hormonal and developmental factors influences puberty, but the exact determinants remain unclear. Artificial light, nutrition and genetic background can affect timing of puberty.

The main innovative aspect of the present study is to combine the possibilities provided by these determinants to generate groups with large differences in timing of puberty. These groups then serve to identify key components of the brain-pituitary-gonad (BPG) axis, i.e. reproductive hormones and their receptors, which control puberty.

Objectives
Controlling photopenod can be an effective way to prevent early sexual maturation.

Programme(s)

• FP5-LIFE QUALITY - Specific Programme for research, technological development and demonstration on "Quality of life and management of living resources", 1998-2002

Call for proposal

3
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Coordinator

INSTITUTE OF MARINE RESEARCH

Address

Nordnesgaten 50
Bergen
Norway

Participants (7)

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE

France

Address

Campus De Beaulieu Bat.13
Rennes

CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS

Spain

Address

Ribera De Cabanes
Torre De La Sal (Castellón)

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE CENTRE DE RECHERCHE DE RENNES

France

Address

Campus De Beaulieu Bâtiment 16
Rennes

UNIVERSITY OF BERGEN

Norway

Address

Hib, Thormøhlens Gate, 55 High Technology Center
Bergen

UNIVERSITY OF STIRLING

United Kingdom

Address

Airthrey Road
Stirling

UNIVERSITY OF UTRECHT

Netherlands

Address

Padualaan 8
Utrecht

UNIVERSITÉ DE RENNES I

France

Address

Campus De Beaulieu Av. Du Général Leclerc 263
Rennes