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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.

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Analysis of stable carbon and nitrogen isotopes as a tool for assessing the environmental impact of aquaculture: a case study from the western Mediterranean Vizzini, S.; Savona, B.; Caruso, M.; Savona, A.; Mazzola, A. (2005). Analysis of stable carbon and nitrogen isotopes as a tool for assessing the environmental impact of aquaculture: a case study from the western Mediterranean. Aquacult. Int. 13(1-2): 157-165. https://dx.doi.org/10.1007/s10499-004-9023-5 In: Aquaculture International. Springer: London. ISSN 0967-6120; e-ISSN 1573-143X, meer Ook verschenen in: Focardi, S.; Saroglia, M. (Ed.) (2005). Animal welfare, human health and interactions with the environment. Aquaculture International, 13(1-2). Springer: Dordrecht. 173 pp., meer

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Beschikbaar in	Auteurs
VLIZ: Non-open access 352053 [ aanvragen ]

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Trefwoorden

Aquaculture Biological production > Primary production Consumers Environmental effects > Culture effects Isotopes > Nitrogen isotopes Isotopes > Stable isotopes Ratios > Carbon isotope ratio Wastes > Effluents > Aquaculture effluents MED, Western Mediterranean [Marine Regions] Marien/Kust

Author keywords

aquaculture impact; land-based fish farm; Mediterranean; primaryproducers; consumers; stable isotopes

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Auteurs		Top
Vizzini, S. Savona, B. Caruso, M.	Savona, A. Mazzola, A.

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Abstract

Stable carbon and nitrogen isotope ratios (13C/12C and 15N/14 N) of in situ dominant primary producers and consumers were investigated to assess the impact on a natural ecosystem of a land-based fish farm along the south-western coast of Sicily (Italy). The putatively impacted area close to the farm along outfall was compared with other locations at increasing distances from the outfall. Carbon and mainly nitrogen stable isotopes revealed evidence of widespread aquaculture waste in the study site: benthic organisms collected in the impacted area showed more enriched d15N signatures than those at greater distances from the outfall, suggesting a large contribution of aquaculture waste to the food web. By contrast, both nekton-benthic and pelagic organisms seemed to be less influenced by discharge, probably due to their mobile habit.

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