Estimating population size of the red swamp crayfish (Procambarus clarkii) in fish-ponds (Brenne, Central France) - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Knowledge and Management of Aquatic Ecosystems Année : 2012

Estimating population size of the red swamp crayfish (Procambarus clarkii) in fish-ponds (Brenne, Central France)

Résumé

The red swamp crayfish, Procambarus clarkii, was discovered in 2007 in the "Parc naturel regional (PNR) de la Brenne" (France). Ten colonized sites have been identified in the park to date, including two new sites discovered in 2011. The present study aims at establishing a protocol suitable for estimating the population size of P. clarkii by the use of a Capture-Mark-Recapture (CMR) technique in a chain of five connected fish-ponds. Results show different cohorts of individuals among seasons and fish-ponds. However, trapping effort was not efficient enough to obtain an accurate estimate of the population size of this species in a fish-pond larger than 2-3 ha. On the other hand, the adopted protocol appeared useful to assess, in smaller fish-ponds, the effect of intensive trapping and other control methods on P. clarkii populations.
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Dates et versions

hal-00771174 , version 1 (08-01-2013)

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A. Coignet, F. Pinet, Catherine Souty-Grosset. Estimating population size of the red swamp crayfish (Procambarus clarkii) in fish-ponds (Brenne, Central France). Knowledge and Management of Aquatic Ecosystems, 2012, 406, pp.2-2. ⟨10.1051/kmae/2012019⟩. ⟨hal-00771174⟩
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