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This paper presents an extensive study on the isopod fauna from the oceanographic expedition Fauna I in the Straits of Gibraltar and the Alborán Sea (southern Iberian Peninsula), during which 871 specimens were collected from 37 samples. These belonged to 34 genera and 55 species; 17 species are new to the Iberian Peninsula: Gnathia dentata (Sars, 1872); G. fallax Monod, 1926; G. oxyuraea (Lil ...

SUBJECT: isopoda

Artículo científico. Consata de Resumen/Abstract, Introducción, Material y Métodos, Resultados y discusión. 6 pp. La posición sistemática de C. ponticus ha sido objeto de un largo debate. Con la aportación de nuevos datos sobre su morfología, biometría, ecología, distribución y posible origen, se pretende reafirmar la identidad de esta especie, separándola de la especie afín C. kröyeri, con la ...

Bay of Biscay Anchovy: a resource in crisis

Villamor-Elordi, M.B. et al. [2007]

Se analizan 27 muestras ictioplanctónicas recogidas a lo largo del litoral del mar de Alborán, entre los días 9 y 10 de noviembre de 1984, durante la campaña "ICTIO-MED-84". Asímismo, estas se complementan con el estudio de los parámetros: temperatura superficial y biomasa zooplanctónica. En esta época del año la sardina, Sardina pilchardus (Walbaum), empieza el desove, de forma que ha resulta ...

SUBJECT: desove

A Bayesian age-structured stock assessment model is developed that takes into account the information available about discards and is able to handle gaps in the time series of discards estimates. The model incorporates a term reflecting mortality due to discarding and appropriate assumptions about how this mortality may change over time are made. The result is a stock assessment that takes due ...

SUBJECT: bayesian

The Greenland halibut fishable stock has been declining substantially since late-1980s,according to both surveys and commercial fishery indices, particularly among the ages10+, which corresponds to the females age at 50% maturity. In this paper the effect of thisapparent reduction in the stock abundance on growth and reproductive parameters isexamined.Among growth parameters, the analysis of t ...

SUBJECT: fecundity