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Phytoplankton and Epipelon Responses to Clear and Turbid Phases in a Seepage Lake (Buenos Aires, Argentina)
Author(s) -
Casco María Adela,
Mac Donagh María Elicia,
Cano María Gabriela,
Solari Lía Cristina,
Claps María Cristina,
Gabellone Néstor Adrián
Publication year - 2009
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.200711036
Subject(s) - macrophyte , phytoplankton , plankton , environmental science , algae , chlorophyll a , aquatic plant , sediment , organic matter , algal bloom , oceanography , ecology , biology , nutrient , geology , botany , geomorphology
Annual changes in the algal density and concentrations of chlorophyll a , total phosphorus, and organic matter were analyzed in water and sediments at four sites characterized by the presence or absence of submerged and emergent macrophytes, during turbid‐ and clear‐water conditions to determine the contribution of the algal components of the plankton and the epipelon and to identify the most typical species in each community. Three states were recognized: one turbid and two clear, with different submerged macrophyte cover. The peaks of phytoplankton and epipelon occurred in the turbid phase, whereas the highest proportion of true epipelic algae in sediments was reached in the second clear phase. The Oscillatoriaceae dominated during the turbid phase in the water and throughout the entire year within the sediments. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)