English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/44142
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

DC FieldValueLanguage
dc.contributor.authorAlonso-Fernández, Alexandre-
dc.contributor.authorAlós, Josep-
dc.contributor.authorGrau, Amàlia-
dc.contributor.authorDomínguez-Petit, Rosario-
dc.contributor.authorSaborido-Rey, Fran-
dc.identifier.citationMarine and Coastal Fisheries: Dynamics, Management, and Ecosystem Science 3(1): 145-159 (2011)-
dc.description15 páginas, 11 figuras, 3 tablas-
dc.description.abstractThe usefulness and importance of histological techniques in reproductive studies have been widely discussed for gonochoristic fish species. In the case of hermaphroditic fishes, histology is a particularly important tool for the proper identification of sexual pattern (i.e., sequential, simultaneous, or nonfunctional hermaphroditism).We used a histological approach to describe hermaphroditism, dynamics of follicle development, and spawning patterns in three species from the northwestern Mediterranean Sea (Balearic Islands, Spain): the Mediterranean rainbow wrasse Coris julis (sequential hermaphrodite), painted comber Serranus scriba (simultaneous hermaphrodite), and annular sea bream Diplodus annularis (nonfunctional hermaphrodite). Development of secondary growth follicles was asynchronous in all three species, and similar peaks in spawning activity occurred between May and July. However, notable differences in sexual cycle and egg production were found. For the painted comber, hydrated follicles were present in ovarian tissue almost every day during the peak of the spawning season, suggesting daily spawning and increasing the chances of autofertilization unless a mechanism to avoid this action is present in this species. Intersexual Mediterranean rainbow wrasses were identified, and the size and age at sex change were estimated to be 132 mm total length and 4 years, respectively. Previous investigators have concluded that the annular sea bream is a protandric hermaphrodite, but our results indicate nonfunctional hermaphroditism. These three species are of little commercial interest and are considered to be bycatch by the artisanal fleet, but they are vulnerable to the impacts of some recreational angling activities. Currently, no specific management plan has been developed for these species. We address the importance of describing sexual pattern and its implications for future conservation efforts.es_ES
dc.description.sponsorshipMinisterio Español de Educación y Ciencia (CTM2005–00283/MAR). COST Action (FA0601)es_ES
dc.subjectCoris juliuses_ES
dc.subjectSerranus scribaes_ES
dc.subjectDiplodus annularises_ES
dc.titleThe Use of Histological Techniques to Study the Reproductive Biology of the Hermaphroditic Mediterranean Fishes Coris julis, Serranus scriba, and Diplodus annularises_ES
dc.description.peerreviewedPeer reviewedes_ES
Appears in Collections:(IIM) Artículos
Show simple item record

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.