Zooplankton biomass in an eutrophic shallow lake (Buenos Aires, Argentina): spatio-temporal variations
Zooplankton biomass was investigated monthly from September 1997 to August 1998 in a shallow eutrophic lake (San Miguel del Monte, Argentina). Duplicate samples of zooplankton were obtained from three stations with different limnological characteristics. The density of zooplankton community was domi...
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| Veröffentlicht in: | Annales de limnologie 2004-01, Vol.40 (3), p.201-210 |
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| creator | Claps, M. C. Gabellone, N. A. Benítez, H. H. |
| description | Zooplankton biomass was investigated monthly from September 1997 to August 1998 in a shallow eutrophic lake (San Miguel del Monte, Argentina). Duplicate samples of zooplankton were obtained from three stations with different limnological characteristics. The density of zooplankton community was dominated by rotifers and small cladocerans related to the trophic status of this shallow lake. The zooplankton biomass showed similar values to other eutrophic shallow lakes. The annual biomass distribution was bimodal (winter and summer peaks). The contribution of crustaceans, mainly copepods, determined the total biomass. The total zooplankton biomass was significantly correlated with chlorophyll «a» in the sampling station located at the deep part of this shallow lake. There were factors and processes promoting changes in the zooplankton biomass, such as food availability, grazing ability, fish predation, eutrophication process with alternation of turbid and clear water periods, and also the addition of organisms from the Salado River during floods. |
| doi_str_mv | 10.1051/limn/2004018 |
| format | Article |
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C. ; Gabellone, N. A. ; Benítez, H. H.</creator><creatorcontrib>Claps, M. C. ; Gabellone, N. A. ; Benítez, H. H.</creatorcontrib><description>Zooplankton biomass was investigated monthly from September 1997 to August 1998 in a shallow eutrophic lake (San Miguel del Monte, Argentina). Duplicate samples of zooplankton were obtained from three stations with different limnological characteristics. The density of zooplankton community was dominated by rotifers and small cladocerans related to the trophic status of this shallow lake. The zooplankton biomass showed similar values to other eutrophic shallow lakes. The annual biomass distribution was bimodal (winter and summer peaks). The contribution of crustaceans, mainly copepods, determined the total biomass. The total zooplankton biomass was significantly correlated with chlorophyll «a» in the sampling station located at the deep part of this shallow lake. There were factors and processes promoting changes in the zooplankton biomass, such as food availability, grazing ability, fish predation, eutrophication process with alternation of turbid and clear water periods, and also the addition of organisms from the Salado River during floods.</description><identifier>ISSN: 0003-4088</identifier><identifier>EISSN: 2100-000X</identifier><identifier>DOI: 10.1051/limn/2004018</identifier><identifier>CODEN: ANLIB3</identifier><language>eng</language><publisher>Toulouse: EDP Sciences</publisher><subject>Animal and plant ecology ; Animal, plant and microbial ecology ; Biological and medical sciences ; Cladocera ; cladocerans ; clear-turbid periods ; Copepoda ; copepods ; Fresh water ecosystems ; Freshwater ; Fundamental and applied biological sciences. 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H.</creatorcontrib><title>Zooplankton biomass in an eutrophic shallow lake (Buenos Aires, Argentina): spatio-temporal variations</title><title>Annales de limnologie</title><description>Zooplankton biomass was investigated monthly from September 1997 to August 1998 in a shallow eutrophic lake (San Miguel del Monte, Argentina). Duplicate samples of zooplankton were obtained from three stations with different limnological characteristics. The density of zooplankton community was dominated by rotifers and small cladocerans related to the trophic status of this shallow lake. The zooplankton biomass showed similar values to other eutrophic shallow lakes. The annual biomass distribution was bimodal (winter and summer peaks). The contribution of crustaceans, mainly copepods, determined the total biomass. The total zooplankton biomass was significantly correlated with chlorophyll «a» in the sampling station located at the deep part of this shallow lake. There were factors and processes promoting changes in the zooplankton biomass, such as food availability, grazing ability, fish predation, eutrophication process with alternation of turbid and clear water periods, and also the addition of organisms from the Salado River during floods.</description><subject>Animal and plant ecology</subject><subject>Animal, plant and microbial ecology</subject><subject>Biological and medical sciences</subject><subject>Cladocera</subject><subject>cladocerans</subject><subject>clear-turbid periods</subject><subject>Copepoda</subject><subject>copepods</subject><subject>Fresh water ecosystems</subject><subject>Freshwater</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>predation</subject><subject>rotifers</subject><subject>submerged macrophytes</subject><subject>Synecology</subject><issn>0003-4088</issn><issn>2100-000X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><recordid>eNp9kE1rFEEQhhsx4BJz8wf0xS_IJNXfs942QaMkIoiieGlqOj2m3Z7uSfesmn_vLLskN08vVfVUQT2EPGNwwkCx0xiGdMoBJLD2EVlwBtAAwPfHZDGHaCS07RNyVOuvuQSpwEixIP2PnMeIaT3lRLuQB6yVhkQxUb-ZSh5vgqP1BmPMf2jEtaevzjY-5UpXofh6TFflp09TSPj6Da0jTiE3kx_GXDDS31jCtpPqU3LQY6z-aJ-H5Ou7t1_O3zdXny4-nK-uGieBT43THLx2zHSmv-4VqGUHkjOPIAznGvnSuKVSrfdadK1Gp73oADrXo5DXrhOH5OXu7ljy7cbXyQ6hOh_nD33eVGukMrCVNJMv_ksy0yrRMjODxzvQlVxr8b0dSxiw3FkGdmvebs3bvfkZf76_i9Vh7AsmF-rDjmZCLyWbuWbHhTr5v_dzLGurjTDKtvDN6s_mEi75mf0o_gGqiZMj</recordid><startdate>20040101</startdate><enddate>20040101</enddate><creator>Claps, M. C.</creator><creator>Gabellone, N. A.</creator><creator>Benítez, H. 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H.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c402t-c620e6c17b7fdf5059b0421ea037226a297c9558ee63b86ac6e3b00bcfa34dcb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>Animal and plant ecology</topic><topic>Animal, plant and microbial ecology</topic><topic>Biological and medical sciences</topic><topic>Cladocera</topic><topic>cladocerans</topic><topic>clear-turbid periods</topic><topic>Copepoda</topic><topic>copepods</topic><topic>Fresh water ecosystems</topic><topic>Freshwater</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>predation</topic><topic>rotifers</topic><topic>submerged macrophytes</topic><topic>Synecology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Claps, M. C.</creatorcontrib><creatorcontrib>Gabellone, N. A.</creatorcontrib><creatorcontrib>Benítez, H. 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H.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Zooplankton biomass in an eutrophic shallow lake (Buenos Aires, Argentina): spatio-temporal variations</atitle><jtitle>Annales de limnologie</jtitle><date>2004-01-01</date><risdate>2004</risdate><volume>40</volume><issue>3</issue><spage>201</spage><epage>210</epage><pages>201-210</pages><issn>0003-4088</issn><eissn>2100-000X</eissn><coden>ANLIB3</coden><abstract>Zooplankton biomass was investigated monthly from September 1997 to August 1998 in a shallow eutrophic lake (San Miguel del Monte, Argentina). Duplicate samples of zooplankton were obtained from three stations with different limnological characteristics. The density of zooplankton community was dominated by rotifers and small cladocerans related to the trophic status of this shallow lake. The zooplankton biomass showed similar values to other eutrophic shallow lakes. The annual biomass distribution was bimodal (winter and summer peaks). 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| ispartof | Annales de limnologie, 2004-01, Vol.40 (3), p.201-210 |
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| language | eng |
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| source | EZB-FREE-00999 freely available EZB journals; Alma/SFX Local Collection |
| subjects | Animal and plant ecology Animal, plant and microbial ecology Biological and medical sciences Cladocera cladocerans clear-turbid periods Copepoda copepods Fresh water ecosystems Freshwater Fundamental and applied biological sciences. Psychology predation rotifers submerged macrophytes Synecology |
| title | Zooplankton biomass in an eutrophic shallow lake (Buenos Aires, Argentina): spatio-temporal variations |
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