Abstract
Data on age and reproduction of the rabbitfish at the Portuguese continental slope are presented. Ages were estimated based on transverse sections of the dorsal spine. Differences in growth patterns were detected between sexes—males grow slower and are smaller than females. The results from histological analysis of different development stages of testes indicated that the macroscopic scale used is well adapted to rabbitfish sampled in Portuguese waters. In females and excluding macroscopic Stage 4, which according to the adopted scale corresponds to an active phase, all the remaining stages were identified in the samples. Ovarian fecundity was estimated as 6·46±2·32 oocytes (females range: 45·0 to 70·0 cm pre-supra caudal fin length [PSCFL]). Length of first maturity in males (40·7 cm PSCFL) is lower than in females (45·9 cm PSCFL).
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Schedule a callMore From: Journal of the Marine Biological Association of the United Kingdom
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