Growth of Mytilus galloprovincialis (mollusca, bivalvia) close to fish farms: a case of integrated multi-trophic aquaculture within the Tyrrhenian Sea

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50 Citazioni (Scopus)

Abstract

A current practice of marine aquacultureis to integrate fish with low-trophic-level organisms(e.g. molluscs and/or algae) during farming tominimise effects of cultivation on the surroundingenvironment and to potentially increase economicincome. This hypothesis has been tested in thepresent article experimentally, by co-cultivating fishand mussels (Mytilus galloprovincialis) in the field.Integrated multi-trophic aquaculture (IMTA) experimentswere started in July 2004 by transplantingmussel seed at two depths (-3 and -9 m) within1,000 m downstream to fish cages and at 1,000 mupstream from cages. Mussels were cultured in nylonnet bags for 12 months and the growth recordedbiometrically. The outcome of our field experimentcorroborated the idea of IMTA effectiveness. In fact,in the study area, the organic matter from fish-farmbiodeposition caused changes in the chemical environment(i.e. controls and impacted sites weresignificantly different for organic matter availabilityand chlorophyll-a) and this induced changes ingrowth performance of co-cultivated mussels. Musselscultivated close to cages, under direct organicemission, reached a higher total length, weight andbiomass than mussel cultivated far from farms.
Lingua originaleEnglish
pagine (da-a)129-136
Numero di pagine8
RivistaHydrobiologia
Volume636
Stato di pubblicazionePublished - 2009

All Science Journal Classification (ASJC) codes

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