The fish stocks managed under the European Common Fisheries Policy are considered to be in danger because of excessive fishing mortalities. A common concern of fisheries
managers is to be able to reconcile the objectives of maintaining fisheries profits while
safeguarding the fish resources, especially when these are exploited beyond biologically safe limits. In EU waters, the management of fisheries and fish resources has been adversely altered by the lack of consensus on management targets and strategies, and also the poor understanding of the links between management tools, fleet developments and the pressure exerted on fishing communities. The carrying idea is the investigation of the dynamics of the elements that cause changes in fleet dynamics: the technological advances in both gear and vessel equipment, and also the overall tactical adaptation of fishing vessels. How do they occur? Why do they occur? What are their consequences on the resource and their socioeconomics?
The overall objective of this project is to address the poor understanding of the links
between management tools, fleet developments and the pressure exerted on fishing
communities, and more precisely to supply fisheries managers with a modelling tool that
will allow them to evaluate the impact of regulations (TACs, multiannual guidance plans
(MAGPs), area and season closures, subsidies) on the dynamics of fleets and fishing mortality.
Examples will be drawn from a wide selection of demersal fleets operating in the
Baltic Sea, the North Sea, the eastern Channel, the Celtic Sea and the Bay of Biscay.
The expected achievements of Tectac will be:
1. to collect information on technological development (e.g. gear, materials, electronics)
and to assess their importance for the catching efficiency of the fleets.
2. to collect information on fleet activity changes (including within trip information on
timing and positioning of individual operations) and to assess their importance;
3. to collect retrospective information on regulatory orders, fish prices, operating costs,
and fish density;
4. to identify major patterns and trends in the important fleet utilisation of the resource
5. to model catch rates relative to stock abundance;
6. to estimate the contribution of external factors (management, socioeconomics, stock
abundance) to fleet dynamics;
7. to model variations in fishing effort through the technical development and the tactical
adaptation of fishing fleets in relation to management regulations;
8. to model the relationship between fleet dynamics, fishing mortality and fisheries profits;
9. to model the impact of management regulations on fishing mortality, fleet dynamics and fisheries profits.
FISHERIES AND AQUACULTURE, QUANTITATIVE APPROACHES AND MODELLING
Scientist responsible for the project
Directeur Général Délégué JEAN-PIERRE HEMMERY
150 quai Gambetta Box 699
France - FR
Phone: +33 1 46 48 21 00
Fax: +33 1 46 48 22 48
||INSTITUT FRANÇAIS DE RECHERCHE POUR L'EXPLOITATION DE LA MER
||09 November 2002
||3 344 368 €
|Total EC contribution
||1 850 895 €