La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Temporal variability of the ichthyofauna in a Northern Aegean coastal lagoon (Greece). Influence of environmental factors
Auteurs :	E. T. Koutrakis, Auteur ; A. C. Tsikliras, Auteur ; A. I. Sinis, Auteur
Type de document :	Article
Dans :	Hydrobiologia (543 JUL 15 2005)
Article en page(s) :	245-257
Résumé :	The ichtyofauna of the Porto-Lagos Lagoon in northern Greece was sampled over 17 months, using a bag-seine net, to investigate factors influencing species seasonal composition and abundance. Of the 35 resident, migrant and straggler species caught, representing 22 families, the most numerically dominant species were Atherina boyeri (46.4% of total catch), which today is the most economically important species, followed by Pomatoschistus marmoratus (28% of total catch) and Aphanius fasciatus (9.1% of total catch). Mugilidae and Sparidae were the most diverse families. According to various diversity indices, the lagoon's ichthyofauna was found to be most diverse in May 1990; taxonomic spread however, as shown by the taxonomic distinctness index (Delta*), was lowest in July 1990, when the greatest monthly water temperature range was observed (13.5 degrees C). Overall fish relative abundance was positively correlated with the maximum monthly water temperature (r(2) = 0.32, p

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