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Critical interactions between species and their implications for a precautionary fisheries management in a variable environment - a modeling approach
www1.uni-hamburg.de/BECAUSE
Acronym: BECAUSE
Period: March 2004 till February 2007
Status: Completed

Thesaurus term Biodiversity
Geographical term: ANE, North Sea [Marine Regions]
 Institutes 
Institutes (13)  Top 
  • University of Hamburg; Center for Marine and Climate Research (ZMK), more, co-ordinator
  • AZTI Foundation, more, partner
  • Centre for Environment, Fisheries and Aquaculture Science (CEFAS), more, partner
  • Technical University of Denmark; Danish Institute for Fisheries Research (DIFRES), more, partner
  • Finnish Game and Fisheries Research Institute (FGFRI), more, partner
  • Christian-Albrechts-University Kiel; Leibniz Institute of Marine Sciences (IFM-GEOMAR), more, partner
  • Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), more, partner
  • Consejo Superior de Investigaciones Científicas; Institute of Marine Sciences (ICM), more, partner
  • Institute of Marine Research (IMR), more, partner
  • Hellenic Centre for Marine Research (HCMR), more, partner
  • Sea Fisheries Institute in Gdynia, more, partner
  • University of St Andrews (USTAN), more, partner
  • Spanish Ministry of Economy and Competiveness; Instituto Español de Oceanografía (IEO), more, partner
Abstract
"BECAUSE investigates the quantitative role of species interactions as an essential 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.
The interactions targeted for investigation are sandeel/predator fish, Nephrops (Norwegian lobster)/cod, capelin/cod, herring/cod, sprat/cod, hake/prey fish, as well as 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
  • Mediterranean Sea.
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