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  • Damage quantification, cormorant diet and daily intake: methodology to determine the biomass and value of cormorant s intake vis a vis the local fishery and aquaculture through food web modelling
FP5

FRAP Informe resumido

Project ID: EVK2-CT-2002-00142
Financiado con arreglo a: FP5-EESD
País: Italy

Damage quantification, cormorant diet and daily intake: methodology to determine the biomass and value of cormorant s intake vis a vis the local fishery and aquaculture through food web modelling

The cormorant impact on traditional (extensive aquaculture) can be quantified trough the use of food web model if are available information on predators (fishery included) and prays living in the aquatic ecosystem. All these information, biological and ecological, can be elaborated with "Ecopath with Ecosim", an ecological software suite for personal computers that has been under development in the last ten years.

The software has more than 2000 registered users representing 120 countries, more than a hundred ecosystem models applying the software have been published (http://www.ecopath.org). Ecopath, the static, mass-balanced snapshot of the suite, was used to quantify the damage of cormorant on the fisheries activities in a managed lagoon ecosystem lagoon. Ecopath was applied comparing a "summer period", with a low presence of cormorant, and a "winter period" when the presence of wintering birds coincide with the peak of yield of the fish stocked in the lagoon.

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Contacto

Riccardo CECCARELLI, (Project leader)
Tel.: +39-063-0483509
Fax: +39-063-0484342
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