Tagging studies of red snapper ( Lutjanus campechanus) and vermilion snapper ( Rhomboplites aurorubens) off the south Texas coast. Reproductive seasonality, maturation, fecundity, and spawning frequency of the vermilion snapper, Rhomboplites aurorubens, off the southeastern United States. Status of vermilion snapper and red porgy stocks off South Carolina. Northeast Gulf Science 10: 51-53.Ĭollins, M.R. Size and age at maturity for vermilion snapper Rhomboplites aurorubens (Lutjanidae) in the South Atlantic Bight. Aspects of the life history of three deepwater snappers around Puerto Rico. Bagenal (ed.) Methods for the Assessment of Fish Production in Fresh Waters, IBP Handbook, Blackwell Scientific Publications, Oxford.īoardman, C. This may be attributed to different levels of exploitation, which may be higher in the latter areas.īagenal, T.B. Vermilion snapper in this study area appears to grow slower and attain a smaller asymptotic length, but has a longer lifespan than found in populations in higher latitudes. The relationship between weight (WT) and length (TL) was WT=3.43×10 −5 TL 2.82. The von Bertalanffy growth parameters were: L ∞=532 mm, K=0.13 y −1, and t 0=−0.17, where L ∞ is the asymptotic length, K is the growth coefficient and t 0 is the theoretical age at zero length. A total of 11 age groups between the ages of 2–12 years (155–505 mm total length) were found. Sagittal otolith sections were used for age determination and the opaque ring, which was counted as the annulus, was deposited from January to May in the dry season. Spawning occurred throughout the year, with a period of peak spawning from about June to November in the rainy season when river runoff increased. The smallest spent male and female measured 181 and 211 mm TL respectively, suggesting a size at first maturity below these sizes. It was not possible to precisely determine size at first maturity due to the use of macroscopic techniques. The smallest individual caught measured 145 mm total length (TL) and all fish appeared to be mature. Reproduction and growth of the vermilion snapper, Rhomboplites aurorubens, were studied in Trinidad and Tobago.
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