Reproductive activity inAsellus aquaticusL. (Crustacea, Isopoda) from southern Italy
Luciana Migliore, Renata Paluzzi, G. Vitagliano-Tadini
Abstract
Luciana Migliore, Renata Paluzzi, G. Vitagliano-Tadini
Abstract
Asellus aquaticus is a freshwater species occurring throughout the entire paleoarctic continent. In winter, southern Mediterranean population prolongs the duration of amplexus, at the end of which fertilization occurs, and also embryonic/larval development, whilst northern populations show a typical reproductive diapause. Reproductive activity therefore shows a geographical variability, larviposition taking place only when conditions are favourable.
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Asellus aquaticus is a freshwater species occurring throughout the entire paleoarctic continent. In winter, southern Mediterranean population prolongs the duration of amplexus, at the end of which fertilization occurs, and also embryonic/larval development, whilst northern populations show a typical reproductive diapause. Reproductive activity therefore shows a geographical variability, larviposition taking place only when conditions are favourable.
Key concepts: Isopoda, Biology, Diapause, Crustacean, Ecology, Mediterranean climate, Population, Human fertilization