| Autor: |
Viana, A. P., Lucena Frédou, F., Frédou, T., Torres, M. F., Bordalo, A. O. |
| Předmět: |
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| Zdroj: |
Journal of Fish Biology; Feb2010, Vol. 76 Issue 3, p467-486, 20p, 1 Diagram, 5 Charts, 6 Graphs, 1 Map |
| Abstrakt: |
This study describes the biological importance of Guajará Bay (Belém, Pará, 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 Guajará 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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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