Growth pattern and reproductive strategy of the holocephalan Chimaera monstrosa along the Portuguese continental slope

Autor:	Leonel Serrano Gordo, Pedro Bordalo Machado, Ivone Figueiredo, Teresa Moura
Rok vydání:	2004
Předmět:	geography geography.geographical_feature_category biology Continental shelf Fish fin Zoology Anatomy Aquatic Science biology.organism_classification Fecundity Chondrichthyes language.human_language language Chimera (mythology) Sexual maturity Portuguese Rabbitfish
Zdroj:	Journal of the Marine Biological Association of the United Kingdom. 84:801-804
ISSN:	1469-7769 0025-3154
Popis:	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).
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d42876da7c8e41ddcc3f4997469b207d https://doi.org/10.1017/s002531540400997xh Zobrazit plný text záznamu