Occurrence and distribution of Black hakes Merluccius senegalensis Cadenat 1950 and Merluccius polli Cadenat 1950 off Mauritania
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AuthorsFernández-Peralta, L. (Lourdes); Ramos, A. (Ana); Meiners-Mandujano, C.G. (César Gabriel); Diop, M. (Mika)
There are two species of hakes distributed in waters off Mauritania, that are commonly known as black hakes, Merluccius senegalensis Cadenat, 1950 and Merluccius polli Cadenat, 1950. Both species overlaps their bathymetric distribution on the continental shelf and slope where they are fished by Spanish trawling and bottom longliner fleets, which implies mixed fishing statistics. During 2003 and 2004 there were conducted several scientific watching campaigns onboard of trawler ships as well as two experimental campaigns onboard in a longliner ship. Based on obtained data, in the present work there are analyzed general aspects of time-space variation of both species population. It is stated a dependence distribution on depth. M. senegalensis was found in poor quantities deeper than 500 m. The overlapping between both species took place from 150 to 500 m, and M. polli were caught by trawling in deepest waters, more than 900 m. M. polli was the predominant specie of the ...
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