FISH and FISHERIES, 2003, 4,1^24 Hundred-year decline of North Atlantic predatory ®shes

• Main Authors: Villy Christensen, Sylvie Gue Nette, Johanna J Heymans, Carl J Walters, Reginald Watson, Dirk Zeller, Daniel Pauly, Fisheries Centre
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Published: 2002
• Subjects: ecosystem modelling; North Atlantic; predatory ¢sh
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.179.2023; http://www.seaaroundus.org/researcher/dpauly/PDF/2003/JournalArticles/HundredYearDeclineNorthAtlanticFishes.pdf

We estimate the biomass of high-trophic level ¢shes in the North Atlantic at a spatial scale of 0.58 latitude by 0.58 longitude based on 23 spatialized ecosystem models, each constructed to represent a given year or short period from1880 to1998.We extract over 7800 data points that describe the abundance of high-trophic level ¢shes as a function of year, primary production, depth, temperature, latitude, ice cover and catch composition.We then use a multiple linear regression to predict the spatial abundance for all