Spatially explicit estimates of stocks sizes, structure and biomass of herring and blue whiting, and catch data of bluefin tuna

Type Article
Date 2014-07-31
Language English
Author(s) Huse Geir1, Mackenzie Brian R.2, Trenkel VerenaORCID3, Doray MathieuORCID3, Nottestad Leif1, Oskarsson Guomundur J.4
Affiliation(s) 1 : Institute of Marine Research, Box 1870 Nordnes, N5817 Bergen, Norway
2 : Centers for Macroecology, Evolution and Climate, and Ocean Life, National Institute for Aquatic Resources (DTU Aqua), Technical University of Denmark, 2920 Charlottenlund, Denmark
3 : Ifremer, rue de l'île d'Yeu, BP 21105, 44311 Nantes cedex 3, France
4 : Marine Research Institute, Skulagata 4, 121 Reykjavik, Iceland
Source Earth System Science Data Discussions (1866-3591) (Copernicus GmbH), 2014-07-31 , Vol. 7 , N. 2 , P. 457-493
DOI 10.5194/essdd-7-457-2014
Abstract The north Atlantic is a productive marine region which has supported important commercial fisheries for centuries. Many of these fisheries have exploited the pelagic species, including herring, blue whiting and tuna. Here we present data on the distribution of herring and blue whiting based on surveys in the Norwegian Sea, the Bay of Biscay and Celtic Sea. We also present catch data on bluefin tuna, which has been depleted for decades, but historically used to be a key predator on the other pelagic stocks during summer. The results show that there have been substantial changes in the herring and blue whiting distribution during the 1990s and early 2000s. The earliest bluefin tuna catches noted were in 1907. The catches in the Norwegian Sea area peaked in the 1950s and there have been very small catches since the 1980s. The catches in the Mediterranean on the other hand peaked in the late 1990, and had subsequently a strong reduction.
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Huse Geir, Mackenzie Brian R., Trenkel Verena, Doray Mathieu, Nottestad Leif, Oskarsson Guomundur J. (2014). Spatially explicit estimates of stocks sizes, structure and biomass of herring and blue whiting, and catch data of bluefin tuna. Earth System Science Data Discussions, 7(2), 457-493. Publisher's official version : https://doi.org/10.5194/essdd-7-457-2014 , Open Access version : https://archimer.ifremer.fr/doc/00252/36345/