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Free Content Some biological aspects of blue marlin (Makaira nigricans) in the recreational fishery at Cabo San Lucas, Baja California Sur, Mexico

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Abstract:

The objectives of this study were to analyze intra- and interannual variation in blue marlin Makaira nigricans (Lacépède, 1802) catch rates and to determine size-frequency distributions, length-weight relationship, and condition factor. The information was recorded from 1990–2002 in the recreational fishery at Cabo San Lucas, Baja California Sur (B.C.S.) by the monitoring program of the Centro Regional de Investigacion Pesquera at La Paz, B.C.S. Biological data (eye-fork length, weight, sex, and gonadal maturation stage) were recorded on three consecutive days each month from fish landed by recreational vessels (n = 1017 blue marlin). A significant positive correlation between catch rate and sea surface temperature was found (r = 0.71), which confirmed the preference of this species for warm sea surface temperatures (> 26 °C). There was significant interannual variation in eye-fork length, with the maximum in 1996 and the minimum in 2002. The large majority (97%) of the landed fish were female, and most were in maturity stage II (pre-mature), indicating that no reproductive activity is present in this area.

Document Type: Research Article

Publication date: November 1, 2006

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  • The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.
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