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Structure of the zooplankton communities in macrophytes stand of a Neotropical floodplain (the Paraná River, Brazil)
Author(s) -
Colares Maria Alice Mendes,
Bonecker Cláudia Costa,
Simões Nadson Ressyé,
Alves Geziele Mucio,
LansacTôha Fábio Amodêo
Publication year - 2013
Publication title -
international review of hydrobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.524
H-Index - 52
eISSN - 1522-2632
pISSN - 1434-2944
DOI - 10.1002/iroh.201301471
Subject(s) - macrophyte , zooplankton , floodplain , littoral zone , rotifer , species richness , plankton , abundance (ecology) , ecology , community structure , period (music) , invertebrate , environmental science , biology , acoustics , physics
This study evaluated the structure of the invertebrate community in plankton of the littoral region of three backwaters of the Upper Paraná River floodplain close to macrophyte stands during different hydrological periods. Samplings were conducted using vertical hauls with a plankton net (68 μm). A total of 81 rotifer taxa and 78 microcrustacean taxa were identified. Both rotifer and microcrustaceans presented higher richness and abundance during the high water period. On the other hand, the highest species diversity for both groups was observed in the low water period. The dissimilarities in composition between sampling sites within each backwater were greater in the high water period. However, the results for beta diversity highlighted a higher dissimilarity of composition and abundance between backwaters in the low water period. The results suggested a stronger temporal influence on the attributes of rotifer and microcrustacean communities, thus stressing the preponderance of the flood pulse in these environments.