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Population Dynamics of Procambarus Clarkii (Girard, 1852) (Decapoda, Astacidea, Cambaridae) from Southern Tuscany (Italy)

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The presence and continuity of naturalized populations of the red swamp crayfish, Procambarus clarkii (Girard, 1852) (Decapoda, Astacidea, Cambaridae), were investigated in the Salica River, in the southern part of Tuscany (Italy), from where no previous information on this species was available. Seasonal samplings were conducted using baited traps. A total of 747 crayfish, including three gravid females, was caught in the framework of the investigation. Information on some population dynamic features (size-frequency distributions, sex-ratio, growth of juveniles, etc.) can now be provided. La presenza e la consistenza di popolazioni naturalizzate di gambero rosso della Louisiana, Procambarus clarkii (Girard, 1852) (Decapoda, Astacidea, Cambaridae), è stata investigata nel torrente Salica, nella parte meridionale della Toscana (Italia), area nella quale non erano disponibili informazioni precedenti su questa specie. Campionamenti stagionali sono stati condotti utilizzando nasse con esca. Un totale di 747 esemplari di gambero rosso della Louisiana, tra i quali tre femmine gravide, è stato catturato nel corso dell'indagine. Alcune informazioni sulla struttura e sulla dinamica (distribuzioni di taglia-frequenza, rapporto sessi, accrescimento dei giovanili, ecc.) sono state ricavate.

Affiliations: 1: Acquario Comunale di Grosseto, via Porciatti 12, I-58100 Grosseto, Italy;, Email: ligas@cibm.it

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/content/journals/10.1163/156854008784092229
2008-05-01
2016-12-05

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