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Free Content Contribution to the Biology of the Sea Catfish, Arius Spixii (Agassiz) (Pisces-Ariidae), South of Margarita Island, Venezuela

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A total of 2,297 specimens of Arius spixii were sampled with different fishing gears between April 1972 and March 1973. The length-weight relationship for both sexes combined was Wt = 1.2648 × 10−5 (SL)3.0414, where Wt is the weight in grams and SL is the standard length in mm. A. spixii was found to spawn once a year between July and October. One batch of eggs was found in the gonads. The fecundity-length relationship was Fec = −28.9 + 0.2778 (SL) and the fecundity-weight relationship was Fec = 5.97 + 0.133 Wt. The von Bertalanffy growth equation estimated for the species was (SL)t = 298.6 [1 − e−0.34420(t + 0.009)].

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Document Type: Research Article

Publication date: 1978-04-01

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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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