Journal
JOURNAL OF FISH BIOLOGY
Volume 76, Issue 3, Pages 467-486Publisher
WILEY
DOI: 10.1111/j.1095-8649.2009.02487.x
Keywords
Brazil; Guajara Bay; ecological indicator; icthyofauna; urban contamination
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Funding
- CNPQ (Conselho Nacional de Desenvolvimento Cientifico e Tecnologica) [302280/2007-3]
- International Institute of Education of Brazil (IEB)
- Moore Foundation
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This study describes the biological importance of Guajara Bay (Belem, Para, Brazil) for fish fauna and presents a diagnosis of water quality in the main channel and creeks, using the icthyofauna as an ecological indicator. A total of 567 individuals from 40 species were identified. About 58% of these use Guajara Bay as a nursery ground, 49 and 81% use the bay as a breeding and feeding ground, respectively. There were no significant differences between environments as measured by the diversity index; however, fish relative abundance (catch per unit of effort) was greater in the creeks than in the main channel. A significant difference was detected in the fish fauna inhabiting the main channel compared with the creeks. In the main channel, icthyofauna significantly differed during December relative to other months.
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