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Global marine primary production constrains fisheries catches
Author(s) -
Chassot Emmanuel,
Bonhommeau Sylvain,
Dulvy Nicholas K.,
Mélin Frédéric,
Watson Reg,
Gascuel Didier,
Le Pape Olivier
Publication year - 2010
Publication title -
ecology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.852
H-Index - 265
eISSN - 1461-0248
pISSN - 1461-023X
DOI - 10.1111/j.1461-0248.2010.01443.x
Subject(s) - fishery , marine ecosystem , ecosystem , seawifs , production (economics) , primary producers , species richness , climate change , fisheries management , ecology , environmental science , biology , fishing , phytoplankton , macroeconomics , nutrient , economics
Ecology Letters (2010) 13: 495–505 Abstract Primary production must constrain the amount of fish and invertebrates available to expanding fisheries; however the degree of limitation has only been demonstrated at regional scales to date. Here we show that phytoplanktonic primary production, estimated from an ocean‐colour satellite (SeaWiFS), is related to global fisheries catches at the scale of Large Marine Ecosystems, while accounting for temperature and ecological factors such as ecosystem size and type, species richness, animal body size, and the degree and nature of fisheries exploitation. Indeed we show that global fisheries catches since 1950 have been increasingly constrained by the amount of primary production. The primary production appropriated by current global fisheries is 17–112% higher than that appropriated by sustainable fisheries. Global primary production appears to be declining, in some part due to climate variability and change, with consequences for the near future fisheries catches.