| Journal: | Anais da Academia Brasileira de Ciencias |
| Database: | PERIÓDICA |
| System number: | 000417620 |
| ISSN: | 0001-3765 |
| Authors: | Diniz, Leidiane P1 Melo-Junior, Mauro de1 |
| Institutions: | 1Universidade Federal Rural de Pernambuco, Departamento de Biologia, Recife, Pernambuco. Brasil |
| Year: | 2017 |
| Season: | Dic |
| Volumen: | 89 |
| Number: | 4 |
| Pages: | 2771-2784 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental |
| English abstract | This paper aims to compare alpha and beta diversities of planktonic microcrustaceans from three reservoirs located nearby in a tropical semiarid basin. Our hypothesis was that alpha and beta diversities of the community are different, although the ecosystems are located close to each other. We carried out two sampling campaigns: dry and rainy seasons. The sampling of microcrustaceans and environmental variables (dissolved oxygen, chlorophyll a and nutrient) was performed at twelve stations and were distributed throughout the three zones (river, transition, and lacustrine), using a plankton net (45 µm). The reservoirs showed different uses and types of nitrogen predominance: Cachoeira (supply/nitrate), Borborema (sewage/ammonia) and Saco (aquaculture/ammonia). Seventeen species were recorded whose richness was assessed as particularly specific to each one of the studied reservoirs. Seasonally, both reservoirs with high anthropogenic alteration showed greater richness in the dry season. The three reservoirs located in a same basin showed different richness and composition, but the diversity did not differ between the zones of the reservoirs. Although communities are close to each other, their composition and richness were found to be distinct for each reservoir. This may be in response to the peculiar particularities, such as nitrogen sources and the different uses |
| Disciplines: | Biología |
| Keyword: | Biología acuática, Lagos artificiales, Eutroficación, Biodiversidad, Riqueza de especies, Abundancia, Zooplancton, Cladocera, Copepoda |
| Keyword: | Aquatic biology, Artificial lakes, Eutrophication, Biodiversity, Species richness, Abundance, Zooplankton, Cladocera, Copepoda |
| Full text: | Texto completo (Ver HTML) |
