Global habitat preferences of commercially valuable tuna
| Type | Article | ||||||||||||
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| Date | 2015-03 | ||||||||||||
| Language | English | ||||||||||||
| Other localization | http://zenodo.org/record/31312 | ||||||||||||
| Author(s) | Arrizabalaga Haritz1, Dufour Florence2, Kell Laurence3, Merino Gorka1, Ibaibarriaga Leire4, Chust Guillem4, Irigoien Xabier5, Santiago Jose Luis4, Murua Hilario1, Fraile Igaratza1, Chifflet Marina1, Goikoetxea Nerea4, Sagarminaga Yolanda1, Aumont Olivier6, Bopp Laurent7, Herrera Miguel8, Fromentin Jean-Marc 9, Bonhomeau Sylvain9 |
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| Affiliation(s) | 1 : AZTI Tecnalia, Div Marine Res, Pasaia 20110, Basque Country, Spain. 2 : NALDEO, F-69425 Lyon 03, France. 3 : ICCAT Secretariat, Madrid 28002, Spain. 4 : AZTI Tecnalia, Marine Res Unit, Sukarrieta 48395, Basque Country, Spain. 5 : King Abdullah Univ Sci & Technol, Red Sea Res Ctr, Thuwal 239556900, Saudi Arabia. 6 : Ctr IRD Bretagne, Lab Oceanog & Climat Expt & Approches Numer, F-29280 Plouzane, France. 7 : CEA Saclay, UMR CEA CNRS, Lab Sci Climat & Environm, F-91191 Gif Sur Yvette, France. 8 : IOTC Secretariat, Victoria, Seychelles. 9 : IFREMER, UMR EME 212, F-34203 Sete, France. |
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| Source | Deep-sea Research Part Ii-topical Studies In Oceanography (0967-0645) (Pergamon-elsevier Science Ltd), 2015-03 , Vol. 113 , P. 102-112 | ||||||||||||
| DOI | 10.1016/j.dsr2.2014.07.001 | ||||||||||||
| WOS© Times Cited | 106 | ||||||||||||
| Keyword(s) | Habitat, Tuna fisheries, Catch/effort, Environmental conditions, Quotient analysis, Generalised Additive Models, Ecosystem Approach to Fisheries Management | ||||||||||||
| Abstract | In spite of its pivotal role in future implementations of the Ecosystem Approach to Fisheries Management, current knowledge about tuna habitat preferences remains fragmented and heterogeneous, because it relies mainly on regional or local studies that have used a variety of approaches making them difficult to combine. Therefore in this study we analyse data from six tuna species in the Pacific, Atlantic and Indian Oceans in order to provide a global, comparative perspective of habitat preferences. These data are longline catch per unit effort from 1958 to2007 for albacore, Atlantic bluefin, southern bluefin, bigeye, yellowfin and skipjack tunas. Both quotient analysis and Generalized Additive Models were used to determine habitat preference with respect to eight biotic and abiotic variables. Results confirmed that, compared to temperate tunas, tropical tunas prefer warm, anoxic, stratified waters. Atlantic and southern bluefin tuna prefer higher concentrations of chlorophyll than the rest. The two species also tolerate most extreme sea surface height anomalies and highest mixed layer depths. In general, Atlantic bluefin tuna tolerates the widest range of environmental conditions. An assessment of the most important variables determining fish habitat is also provided. | ||||||||||||
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