1) La descarga del recurso depende de la página de origen
2) Para poder descargar el recurso, es necesario ser usuario registrado en Universia

Opción 1: Descargar recurso

Opción 2: Descargar recurso

Detalles del recurso


The study of Spondyliosoma cantharus (L.) reproduction was carried out within the framework of a project on the Fisheries resources of the south-west coast of Portugal, and was based on the analysis of the spawning season, gonad maturation, size-at-maturity, fecundity, and hermaphroditism. Spawning took place from February to April, peaking in March. Analysis of the sex ratio by size class and season showed that females were more abundant throughout the year (M/F=0.57) and in the smaller size classes. Overall size at first maturity (L-50) was 20.10 cm total length (TL), with a significant difference between males (22.41 cm, TL) and females (19.98 cm, TL). Absolute fecundity (Fa) ranged from 37,506 to 112,074 oocytes, with a mean of 61,396. A power type relationship best described the relationships between absolute fecundity and TL (Fa = 436.27TL(1.575)), and somatic weight (Fa = 2979.7SW(0.585)). The number of oocytes/g of female somatic weight ranged from 217 to 549, with a mean of 346. The reproductive strategy of this species is characterised by protogynic hermaphroditism, as indicated by the presence of individuals in transition and of testes with vestiges of preceding ovaries associated with the significant differences in the size frequency distributions of the sexes.

Pertenece a

Sapientia Repositório Institucional Universidade do Algarve  


Gonçalves, J. M. S. -  Erzini, Karim - 

Id.: 69524207

Idioma: eng  - 

Versión: 1.0

Estado: Final

Tipo de recurso: article  - 

Tipo de Interactividad: Expositivo

Nivel de Interactividad: muy bajo

Audiencia: Estudiante  -  Profesor  -  Autor  - 

Estructura: Atomic

Coste: no

Copyright: sí

: openAccess

Requerimientos técnicos:  Browser: Any - 

Relación: [References] WOS:000166234700007

Fecha de contribución: 10-ene-2017


* 0214-8358

Otros recursos del mismo autor(es)

  1. A regulation-based classification system for marine protected areas: A response to Dudley et al. [9] Dudley et al. [9] commented on our paper [11], arguing that the current IUCN objective-based categor...
  2. A well-kept treasure at depth: precious red coral rediscovered in Atlantic deep coral gardens (SW Portugal) after 300 years The highly valuable red coral Corallium rubrum is listed in several Mediterranean Conventions for sp...
  3. Using a modified Nordmøre grid for by-catch reduction in the Portuguese crustacean-trawl fishery By-catch and discards are a common problem to all fisheries. Recent studies of the Portuguese crusta...
  4. Elasmobranch landings in the Portuguese commercial fishery from 1986 to 2009 Portuguese commercial Elasmobranch landings were analysed for the period 1986 – 2009 and revealed th...
  5. A regulation-based classification system for marine protected areas: Aresponse to Dudley et al International audience

Otros recursos de la mismacolección

  1. A musicalidade africana narra a vida de vita na comédia-musical nha fala do cineasta Flora Gomes O filme Nha fala (2002), uma comédia-musical, do cineasta Flora Gomes, narra parte da história de Vi...
  2. O filme nha fala: musical guineense de múltiplos trânsitos Nestes poucos 50 anos, o cinema novo africano nasce com o intuito de mostrar a visão dos temas cultu...
  3. Stress approach by media art With a background in conceptual art and media art, and the relations between science and art, we tri...
  4. A topological framework for interactive queries on 3D models in the web Several technologies exist to create 3D content for the web. With X3D, WebGL, and X3DOM, it is possi...
  5. Surface collision detection for virtual prototyping This paper presents an efficient collision detection algorithm designed to support assembly and main...

Aviso de cookies: Usamos cookies propias y de terceros para mejorar nuestros servicios, para análisis estadístico y para mostrarle publicidad. Si continua navegando consideramos que acepta su uso en los términos establecidos en la Política de cookies.