La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Population dynamics, growth and reproduction of Corophium insidiosum (Crustacea : Amphipoda) at low salinities in Monolimni lagoon (Evros Delta, North Aegean Sea)
Auteurs :	T. Kevrekidis, Auteur
Type de document :	Article
Dans :	Hydrobiologia (522(1-3) JUL 2004)
Article en page(s) :	117-132
Résumé :	Distribution, population dynamics, growth and aspects of reproductive biology of Corophium insidiosum were investigated in Monolimni lagoon. Samples were collected in July 1997 (at 30 psu S) and during February 1998 May 1999 (at 0.1-5.7 psu S). Corophium insidiosum was almost exclusively found in the outer part of the lagoon, which showed a higher water renewal rate. Population density gradually decreased during winter and spring, when salinity was lower than 1 psu and the amphipod finally vanished from the lagoon. Salinity increase during summer (1.2-5.7 psu) was followed by the re-occurrence of C. insidiosum with a time lag of 2-3 months. Population density increased in autumn and peaked in early winter at salinities 1.6-4.2 psu. Three cohorts appeared in the population during September 1998-March 1999. Breeding activity peaked in early autumn (14-21degreesC, 4 psu S) and ceased after December (2-6.5degreesC,

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