Reproduction and feeding of the mountain mullet,Agonostomus monticola,in Trinidad,West Indies |
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| Authors: | Dawn A. T. Phillip |
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| Affiliation: | (1) Department of Zoology, The University of the West Indies, St. Augustine;(2) Present address: Institute of Marine Affairs, P. O. Box 3160, Carenage, Trinidad |
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| Abstract: | Synopsis Reproduction and feeding were studied in mountain mullet,Agonostomus monticola, in northeast Trinidad during the period January 1987 to September 1988. Macroscopic and microscopic examination of the gonads indicated a single, distinct reproductive season from June to October during the wet season. Evidence implies only one spawning event per individual during the reproductive season. Females significantly outnumbered males resulting in a sex ratio of 20.4:1. The mean size at maturity for females was 135 mm fork length (FL). Fecundity (F) is related to size by the equations F = 167.3 FL2.7 and F = 16430.7 G + 235079 (G = gutted weight).A. monticola was found to be an omnivorous feeder. The dominant food groups found in the stomachs were insects, prawns, fruits and algae, in order of decreasing importance. |
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| Keywords: | Size at maturity Spawning Fecundity Diet Feeding chronology Fish |
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