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Titolo:
Factors determining the structure of fish communities in Pantanal lagoons (MS, Brazil)
Autore:
Suarez, YR; Petrere, M; Catella, AC;
Indirizzi:
UEMS, Unidade Ivinhema, BR-79740000 Ivinhema, MS, Brazil UEMS Ivinhema MSBrazil BR-79740000 BCa, BR-79740000 Ivinhema, MS, Brazil UNESP, Dept Ecol, Rio Claro, SP, Brazil UNESP Rio Claro SP BrazilUNESP, Dept Ecol, Rio Claro, SP, Brazil Embrapa Pantanal, Corumba, MS, Brazil Embrapa Pantanal Corumba MS BrazilEmbrapa Pantanal, Corumba, MS, Brazil
Titolo Testata:
FISHERIES MANAGEMENT AND ECOLOGY
fascicolo: 2, volume: 8, anno: 2001,
pagine: 173 - 186
SICI:
0969-997X(200104)8:2<173:FDTSOF>2.0.ZU;2-E
Fonte:
ISI
Lingua:
ENG
Soggetto:
FLOODPLAIN LAKES; ASSEMBLAGES; RIVER;
Keywords:
Brazil; fish communities; floodplains; lagoons; Pantanal;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
31
Recensione:
Indirizzi per estratti:
Indirizzo: Suarez, YR UEMS, Unidade Ivinhema, Av Brasil 679, BR-79740000 Ivinhema, MS, Brazil UEMS Av Brasil 679 Ivinhema MS Brazil BR-79740000 BC MS, Brazil
Citazione:
Y.R. Suarez et al., "Factors determining the structure of fish communities in Pantanal lagoons (MS, Brazil)", FISH MA EC, 8(2), 2001, pp. 173-186

Abstract

The fish communities of lagoons in the Nhecolandia Pantanal were studied to determine the factors which are responsible for the composition and abundance of species. Fishes were collected in 19 lagoons during August 1997, after their isolation from the River Negro, using beach seines (15 x 1.5 m; 2mm mesh). A total of 51 species were collected. In the lagoons, or in parts with dense macrophytes, a screened box trap was used. Fishing was also accomplished with hooks of several sizes. Species richness was estimated by the jack-knife procedure, after adjustment to the log-normal distribution and with von Bertalanffy's equation (asymptotic). The most important factors in the community organization were macrophyte cover, piscivore abundance and depth of the lagoons. The role of these habitats in the Pantanal ecosystem was discussed.

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Documento generato il 02/04/20 alle ore 19:07:28