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Publication
The role of macrobenthic communities in the management of aquaculture fish ponds
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Abstract(s)
O presente estudo pretende contribuir para um melhor conhecimento das comunidades
de macrofauna bentónica em tanques de terra para produção semi-intensiva, por forma a
analisar a sua contribuição para a gestão destes sistemas, em termos de qualidade
ambiental e económicos. Várias experiências foram desenvolvidas com o intuito de
proporcionar dados de base para futuros estudos com vista à potencial policultura de
Solea senegalensis e Diplodus sargus. A qualidade ambiental das zonas costeiras é,
actualmente, uma problema emergente e medidas de gestão têm de ser tomadas com o
intuito de manter a sustentabilidade ambiental. Assim, um dos objectivos principais da
presente tese é a análise da contribuição das comunidades macrobentónicas na avaliação
e melhoria da qualidade ambiental de aquaculturas. O papel do poliqueta Hediste
diversicolor nestas áreas foi analisado de uma forma exaustiva, dado o seu valor
comercial, ser um recurso alimentar preferencial para S. senegalensis e contribuir
activamente na dinâmica do ambiente bentónico. De acordo com o presente trabalho,
uma potencial policultura entre S. senegalensis e D. sargus aparenta ser promissora,
dado não se esperar competição por alimento.
The present study aimed to improve the knowledge on the macrobenthic communities within semi-intensive production fish farms, analysing their contribution for the management of those systems, both in terms of environmental quality and profit increase. Several experiments were undertaken in order to provide baseline knowledge for future research concerning the potential polyculture of Solea senegalensis and Diplodus sargus. Environmental quality of coastal areas is a growing concern and management measures must be taken in order to maintain their environmental sustainability. Another major goal was the use of macrobenthic communities in the environmental quality assessment and improvement of aquaculture facilities. Hediste diversicolor’s role in these areas was analysed thoroughly, as it has a commercial value, is a food resource for S. senegalensis and plays an important role in the dynamics of the benthic environment. According to the present study, the potential polyculture of S. senegalensis and D. sargus seems possible as competition for food resources is not expected.
The present study aimed to improve the knowledge on the macrobenthic communities within semi-intensive production fish farms, analysing their contribution for the management of those systems, both in terms of environmental quality and profit increase. Several experiments were undertaken in order to provide baseline knowledge for future research concerning the potential polyculture of Solea senegalensis and Diplodus sargus. Environmental quality of coastal areas is a growing concern and management measures must be taken in order to maintain their environmental sustainability. Another major goal was the use of macrobenthic communities in the environmental quality assessment and improvement of aquaculture facilities. Hediste diversicolor’s role in these areas was analysed thoroughly, as it has a commercial value, is a food resource for S. senegalensis and plays an important role in the dynamics of the benthic environment. According to the present study, the potential polyculture of S. senegalensis and D. sargus seems possible as competition for food resources is not expected.
Description
Tese de Doutoramento, Aquacultura, Especialidade de
Sistema de Produção, Faculdade de Ciências do Mar e do Ambiente, Universidade do Algarve, 2007
Keywords
Aquacultura Macrofauna bentónica Gestão ambiental Diplodus sargus Solea senegalensis Hediste diversicolor