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Connected As: <Anonymous> Contact: srcosmos@aegean.gr |
Article summary:
| Keywords | fish pond, zooplankton, diversity, temporal fluctuations. |
| Abstract | The present study aimed at evaluating the composition, diversity and short-term temporal fluctuations of zooplankton communities in fish ponds. The study was carried out in two fish ponds, with 180 m2 of water surface (6 ? 30 m) each, located in the Aquiculture Centre of the Pindamonhangaba Fisheries Institute - Sao Paulo. The study was developed over eight weeks, from February 16 to April 6, 1998. The physical and chemical conditions of the water in the fish ponds were adequate for zooplankton development. The zooplanktonic community was characterised by high richness of species and a greater diversity was observed in the first fish pond, with a superior density of Rotifera. Temporal changes in zooplankton composition occurred in both ponds with Cladocera appearing in abundance later, in the fourth week, whereas copepods and rotifers were well represented since the beginning. Many species found are typical of fish ponds and are considered to constitute an excellent food source, showing high nutritional value for fish larvae, a good example being individuals from the Rotifera group and the micro-crustacean species Moina minuta and Thermocyclops decipiens. |
| Full text | Full Text in PDF (617 KB) |
| Source link | http://www.scielo.br/pdf/bjb/v69n3/v69n3a05.pdf |
| Included Refrences | 37 References (List...) |
| Cited by other Articles | 0 Citations (List...) |
| Name | Affiliation | Home page | Total pubs | |
| Negreiros NF | Programa de Pos-Graduacao em Ecologia e Recursos Naturais, Universidade Federal de Sao Carlos - UFSCar, CP 676, CEP 13565-905, Sao Carlos, SP, Brazil | natalia_felix@yahoo.com.br | 3 | |
| Rocha O | Departamento de Ecologia e Biologia Evolutiva, Universidade Federal de Sao Carlos – UFSCar, Via Washington Luis, Km 235, CP 676, CEP 13565-905, Sao Carlos, SP, Brazil | doro@power.ufscar.br | 33 | |
| Rojas NET | Instituto de Pesca, Rod. Washington Luis, Km 445, CP 1052, CEP 15025-970, Sao Jose do Rio Preto, SP, Brazil | 2 | ||
| Santos-Wisniewski MJ | Universidade Federal de Alfenas – UNIFAL-MG, Rua Gabriel Monteiro da Silva, 714, CEP 37130-000, Alfenas, MG, Brazil | mjw@unifal-mg.edu.br | 9 |
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