Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/123943
COMPARTIR / EXPORTAR:
logo share SHARE logo core CORE BASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE

Invitar a revisión por pares abierta
Título

Reproductive biology of NW Mediterranean tonguefish Symphurus nigrescens and Symphurus ligulatus

AutorBustos-Salvador, Ferran; Fernandez-Arcaya, Ulla; Ramírez-Llodra, Eva CSIC ORCID; Aguzzi, Jacopo CSIC ORCID ; Recasens, Laura CSIC ORCID ; Rotllant, Guiomar CSIC ORCID CVN ; Company, Joan B. CSIC ORCID
Palabras claveSeasonal cycles
NW Mediterranean
Reproductive strategies
Size-frequency distribution
Symphurus
Fecha de publicaciónago-2015
EditorCambridge University Press
CitaciónJournal of the Marine Biological Association of the UK 95(5): 1041-1049 (2015)
ResumenThe population structure and reproductive biology of deep-water continental margin Cynoglossidae is poorly known. Here, we focused on two highly abundant species of the upper slope of the NW Mediterranean Sea, Symphurus nigrescens and S. ligulatus. Megafaunal sampling of 37 hauls was conducted between April 2003 and May 2004 in the Blanes canyon and the adjacent open slope between 300-1500 m depth. The differential bathymetric distribution between the two species was surveyed by standardizing catch data per unit of swept surface and by pooling resulting densities by 100 m depth interval. Females of both species were classified into a five-stage maturity scale according to their external appearance and their gonads dissected for histological analysis. The analysis of the species' bathymetric distribution revealed a differential and only partial overlap. In both species, an increase in size with depth was observed coinciding with the dominance of females in deeper depth strata. The shallower species, S. nigrescens showed a marked spawning period with a peak in summer. In contrast, the deeper-living species, S. ligulatus, presented a longer spawning period ranging from spring to autumn. Moreover, histological examination demonstrated that the ovaries of both species had an asynchronous organization. Present results on spatial-temporal size frequency distribution, spawning temporality and oocyte size are discussed assuming interspecific competition and the different environmental conditions related to their bathymetric distribution. Copyright © Marine Biological Association of the United Kingdom 2015
Descripción9 pages, 6 figures, 3 tables
Versión del editorhttps://doi.org/10.1017/S002531541500003X
URIhttp://hdl.handle.net/10261/123943
DOI10.1017/S002531541500003X
Identificadoresissn: 0025-3154
e-issn: 1469-7769
Aparece en las colecciones: (ICM) Artículos

Mostrar el registro completo

CORE Recommender

SCOPUSTM   
Citations

1
checked on 11-mar-2024

WEB OF SCIENCETM
Citations

1
checked on 23-feb-2024

Page view(s)

287
checked on 18-mar-2024

Google ScholarTM

Check

Altmetric

Altmetric


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.