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Critical Interactions BEtween Species and their Implications for a PreCAUtionary FISheries Management in a variable Environment- a Modelling Approach

Objective

BECAUSE investigates the quantitative role of species interactions as a first step towards the implementation of the ecosystem approach into fisheries management. The focus is on simple but critical interactions in the upper trophic levels of marine food webs. This refers specifically to the interactions between exploited prey fish populations, exploited fish predators and wild life such as sea birds and marine mammals dependent on the same prey fish populations.
In most European shelf ecosystems fish predator populations are severely depleted, and this has released predation pressure on prey fish populations substantially. In part, man has taken over the role and harvests this part of the prey fish production either for human consumption or for reduction to fish meal. An exact quantitative understanding of these interactions becomes essential, once recovery plans for the over fished predator stocks become operational and effective.
The interactions targeted for investigation are sandeel/predator fish, nephrops/cod, capelin/cod herring/cod, sprat/cod, hake/prey fish, hake and cod cannibalism. These interactions will be studied in 5 different case studies: Nordic Seas, North Sea, Baltic Sea, Iberian Shelf/Bay of Biscay and Mediterranean Sea. The analysis will start with the development of conceptual food web models in each case study. This will include the detailed analysis of processes driving critical interactions, mainly prey selection, predator prey overlap and its dependence on biological and hydrographical factors, consumption, growth and maturity. Special emphasis will be given on updates of the population numbers of dependent wild life and revisions of their feeding behaviour and food requirements. The process analysis results in improved process models which are in turn used to improve existing multi species models...

Call for proposal

FP6-2002-SSP-1
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Funding Scheme

STREP - Specific Targeted Research Project

Coordinator

UNIVERSITAET HAMBURG
Address
Edmund-siemers-allee 1
Hamburg
Germany

Participants (17)

AZTI FUNDAZIOA
Spain
Address
Txatxarramendi Ugartea Z/g
Sukarrieta (Bizkaia)
THE CENTER FOR ENVIRONMENT, FISHERIES AND AQUACULTURE SCIENCE
United Kingdom
Address
Pakefield Road
Lowestoft
DANISH INSTITUTE FOR FISHERIES RESEARCH
Denmark
Address
Jaegersborgvej 64-66
Lyngby
FINNISH GAME AND FISHERIES RESEARCH INSTITUTE
Finland
Address
Pukinmaenaukio 4
Helsinki
THE SCOTTISH MINISTERS ACTING THROUGH FISHERIES RESEARCH SERVICES
United Kingdom
Address
375 Victoria Road
101 Aberdeen
MARINE RESEARCH INSTITUTE
Iceland
Address
Skulagata 4
1390 Reykjavik
INSTITUT FUER MEERESKUNDE AN DER CHRISTIAN ALBRECHTS UNIVERSITAT
Germany
Address
Wischhofstrasse 1-3
Kiel
INSTITUT FRANCAIS DE RECHERCHE POUR L'EXPLOITATION DE LA MER
France
Address
155 Rue Jean-jacques Rousseau
Issy-les-moulineaux
CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS
Spain
Address
C/serrano 117
Madrid
HAVFORSKNINGSINSTITUTTET
Norway
Address
Nordnesgaten, 50
Bergen
NATIONAL CENTRE FOR MARINE RESEARCH
Greece
Address
Agios Kosmas Hellinikon
Athens
MORSKI INSTYTUT RYBACKI
Poland
Address
Ul. Kollataja 1
Gdynia
UNIVERSITA DEGLI STUDI DI ROMA "LA SAPIENZA"
Italy
Address
Piazzale Aldo Moro 5
Rome
THE UNIVERSITY COURT OF THE UNIVERSITY OF ST ANDREWS
United Kingdom
Address
College Gate, North Street
St Andrews
LATVIAN FISH RESOURCES AGENCY
Latvia
Address
Daugavgrivas Str. 8
Riga
INSTITUTE OF MARINE RESEARCH, NATIONAL BOARD OF FISHERIES
Sweden
Address
Turistgatan 5
Lysekil
INSTITUTO ESPANOL DE OCEANOGRAFIA
Spain
Address
Avenida De Brasil 31
Madrid