Periphytic algae as food source for grazing chironomids in a shallow phytoplankton-dominated lake
نویسندگان
چکیده
منابع مشابه
Changes of the phytoplankton community as symptoms of deterioration of water quality in a shallow lake
Covering more than 60% of the lake surface, macrophytes determined the taxonomic composition of phytoplankton. We have found numerous indications of ecological deterioration and an increased trophic level year to year: an increased total number of taxa; a significantly increased number of species of Chlorophyta, Bacillariophyceae and Cyanoprokaryota; a decreased number of Chrysophyceae; increas...
متن کاملEffects of Exposed Artificial Substrate on the Competition between Phytoplankton and Benthic Algae: Implications for Shallow Lake Restoration
Phytoplankton and benthic algae coexist in shallow lakes and the outcome of the competition between these two photoautotrophs can markedly influence water clarity. It is well established that exposed artificial substrate in eutrophic waters can remove nutrients and fine particles from the water column via the attached periphyton canopy. However, the effects of the introduction of artificial sub...
متن کاملPeriphytic algae of the Garças Lake, Upper Paraná River floodplain: comparing the years 1994 and 2004.
The changes imposed by dams on hydrological regime, water transparence and nutrient concentrations downstream affect biodiversity in relation to species richness and specific composition of the community. The aim of this work was evaluate this effect on periphyton, comparing richness and composition of periphytic algae in the Garças Lake, Upper Paraná River floodplain, between the years 1994, b...
متن کاملFunctional diversity and functional traits of periphytic algae during a short-term successional process in a Neotropical floodplain lake.
Due to the lack of knowledge in periphytic algae functional diversity patterns during successional processes in floodplains, the present study aimed to analyze the dynamics of the functional traits and functional diversity of periphytic species during a short-term successional process in a floodplain lake. The functional traits analyzed were size class, growth form, strength of attachment to th...
متن کاملPeriphytic algae dynamics in lentic ecosystems in the Brazilian semiarid.
The hydrological periods drive the structure and organization of aquatic communities in semiarid regions. We hypothesize that a decrease of the precipitation during the dry period will favor the development of the periphytic algal community, leading to higher richness and density in this period. To test this hypothesis, we investigated the changes in the periphytic algal community structure in ...
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ژورنال
عنوان ژورنال: Limnologica
سال: 2013
ISSN: 0075-9511
DOI: 10.1016/j.limno.2012.11.004