Dynamics of plankton and fish in a subtropical temporary wetland: Rice fields

Becker, Vanessa; Rodrigues, Lúcia Helena Ribeiro; Canterle, Eliete Bertazzo; Gazulha, Vanessa; Hamester, Ângela; Marques, David da Motta

Dynamics of plankton and fish in a subtropical temporary wetland: Rice fields

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dc.contributor.author	Becker, Vanessa
dc.contributor.author	Rodrigues, Lúcia Helena Ribeiro
dc.contributor.author	Canterle, Eliete Bertazzo
dc.contributor.author	Gazulha, Vanessa
dc.contributor.author	Hamester, Ângela
dc.contributor.author	Marques, David da Motta
dc.date.accessioned	2020-12-08T23:26:22Z
dc.date.available	2020-12-08T23:26:22Z
dc.date.issued	2011-05-18
dc.description.resumo	Rice fields are temporary wetlands that harbor many of the same species that breed in natural temporary ponds. These systems have a complex limnology, characterized by rapid physical, chemical, and biological changes. The goal of this study was to evaluate the role of nutrients in the plankton and fish dynamics during a production cycle, based on the auto-ecology of the species related to their adaptations to environmental temporal changes in an irrigated rice field in Southern Brazil. The principal components analysis (PCA) indicated a temporal gradient driven by nutrient availability, grouping sampling periods according to the production cycle. ANOVA indicated temporal differences in the limnological variables during the development of the rice field production cycle. Linear regression showed a positive relationship between chlorophyll a, nutrients and biomass of small and medium filter-feeders. In contrast, planktivorous fish biomass was inversely related to chlorophyll a. This study showed both top down and bottom up processes simultaneously regulating the primary production in the rice field wetland along a temporal gradient the rice production cycle	pt_BR
dc.identifier.citation	RODRIGUES, L. H. R. ; CANTERLE, E. B. ; BECKER, V. ; PAULO, V. G. ; HAMESTER, A. ; MARQUES, D. da M. . Dynamics of plankton and fish in a subtropical temporary wetland: Rice fields. Scientific Research and Essays, v. 6, p. 2069-2077, 2011. Disponível em <https://academicjournals.org/journal/SRE/article-abstract/AC1FCBD22672>. Acesso em 20 out 2020. http://dx.doi.org/10.5897/sre10.735.	pt_BR
dc.identifier.doi	10.5897/sre10.735
dc.identifier.issn	1992-2248
dc.identifier.uri	https://repositorio.ufrn.br/handle/123456789/30932
dc.language	en	pt_BR
dc.publisher	Academic Journals	pt_BR
dc.rights	Attribution 3.0 Brazil	*
dc.rights.uri	http://creativecommons.org/licenses/by/3.0/br/	*
dc.subject	Chlorophyll a	pt_BR
dc.subject	Filter-feeders	pt_BR
dc.subject	Planktivorous fish	pt_BR
dc.subject	Temporal gradient	pt_BR
dc.title	Dynamics of plankton and fish in a subtropical temporary wetland: Rice fields	pt_BR
dc.type	article	pt_BR