Calanoid copepods feeding on algae and filamentous cyanobacteria: rates of ingestion, defaecation and effects on trichome length
The relative abilities of freshwater calanoid copepods to graze algae and filamentous cyanobacteria were examined in three species of Boeckella (B.triarticulata, B.hamata, B.dilatata) fed Cydotella, Cryptomonas and two species of Nostoc and Anabaena. Although rates of ingestion were highest on Crypt...
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| Veröffentlicht in: | Journal of plankton research 1990, Vol.12 (1), p.201-213 |
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| creator | Burns, Carolyn W. Xu, Zhenkang |
| description | The relative abilities of freshwater calanoid copepods to graze algae and filamentous cyanobacteria were examined in three species of Boeckella (B.triarticulata, B.hamata, B.dilatata) fed Cydotella, Cryptomonas and two species of Nostoc and Anabaena. Although rates of ingestion were highest on Cryptomonas, all the Boeckella species consumed cyanobacteria, some species at similar rates to Cyclolella. Faecal production on the foods was highest on Cydotella and, in B.triarticulata, higher on A.flos-aquae and Nostoc sp. 2 than on Cryptomonas. At 1 mg l−1 of these cyanobacteria, female B.triarticulata voided 70% by volume of the material they ingested as compact faecal pellets. By their grazing they also decreased dramatically the trichome lengths of A.flos-aquae, A.oscillarioides and Nostoc sp. 2, thereby possibly altering the potential susceptibility of these filamentous cyanobacteria to grazing by other zooplankton. |
| doi_str_mv | 10.1093/plankt/12.1.201 |
| format | Article |
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Although rates of ingestion were highest on Cryptomonas, all the Boeckella species consumed cyanobacteria, some species at similar rates to Cyclolella. Faecal production on the foods was highest on Cydotella and, in B.triarticulata, higher on A.flos-aquae and Nostoc sp. 2 than on Cryptomonas. At 1 mg l−1 of these cyanobacteria, female B.triarticulata voided 70% by volume of the material they ingested as compact faecal pellets. By their grazing they also decreased dramatically the trichome lengths of A.flos-aquae, A.oscillarioides and Nostoc sp. 2, thereby possibly altering the potential susceptibility of these filamentous cyanobacteria to grazing by other zooplankton.</description><identifier>ISSN: 0142-7873</identifier><identifier>EISSN: 1464-3774</identifier><identifier>DOI: 10.1093/plankt/12.1.201</identifier><identifier>CODEN: JPLRD9</identifier><language>eng</language><publisher>Oxford: Oxford University Press</publisher><subject>Animal and plant ecology ; Animal, plant and microbial ecology ; Animals ; Autoecology ; Biochemistry. Physiology. Immunology ; Biological and medical sciences ; Boeckella ; Crustacea ; Cyanophyta ; Freshwater ; Fundamental and applied biological sciences. Psychology ; Invertebrates ; Physiology. Development ; Protozoa. 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Although rates of ingestion were highest on Cryptomonas, all the Boeckella species consumed cyanobacteria, some species at similar rates to Cyclolella. Faecal production on the foods was highest on Cydotella and, in B.triarticulata, higher on A.flos-aquae and Nostoc sp. 2 than on Cryptomonas. At 1 mg l−1 of these cyanobacteria, female B.triarticulata voided 70% by volume of the material they ingested as compact faecal pellets. By their grazing they also decreased dramatically the trichome lengths of A.flos-aquae, A.oscillarioides and Nostoc sp. 2, thereby possibly altering the potential susceptibility of these filamentous cyanobacteria to grazing by other zooplankton.</description><subject>Animal and plant ecology</subject><subject>Animal, plant and microbial ecology</subject><subject>Animals</subject><subject>Autoecology</subject><subject>Biochemistry. Physiology. Immunology</subject><subject>Biological and medical sciences</subject><subject>Boeckella</subject><subject>Crustacea</subject><subject>Cyanophyta</subject><subject>Freshwater</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Invertebrates</subject><subject>Physiology. Development</subject><subject>Protozoa. 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Physiology. Immunology</topic><topic>Biological and medical sciences</topic><topic>Boeckella</topic><topic>Crustacea</topic><topic>Cyanophyta</topic><topic>Freshwater</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Invertebrates</topic><topic>Physiology. Development</topic><topic>Protozoa. Invertebrata</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Burns, Carolyn W.</creatorcontrib><creatorcontrib>Xu, Zhenkang</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Ecology Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><jtitle>Journal of plankton research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Burns, Carolyn W.</au><au>Xu, Zhenkang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Calanoid copepods feeding on algae and filamentous cyanobacteria: rates of ingestion, defaecation and effects on trichome length</atitle><jtitle>Journal of plankton research</jtitle><date>1990</date><risdate>1990</risdate><volume>12</volume><issue>1</issue><spage>201</spage><epage>213</epage><pages>201-213</pages><issn>0142-7873</issn><eissn>1464-3774</eissn><coden>JPLRD9</coden><abstract>The relative abilities of freshwater calanoid copepods to graze algae and filamentous cyanobacteria were examined in three species of Boeckella (B.triarticulata, B.hamata, B.dilatata) fed Cydotella, Cryptomonas and two species of Nostoc and Anabaena. Although rates of ingestion were highest on Cryptomonas, all the Boeckella species consumed cyanobacteria, some species at similar rates to Cyclolella. Faecal production on the foods was highest on Cydotella and, in B.triarticulata, higher on A.flos-aquae and Nostoc sp. 2 than on Cryptomonas. At 1 mg l−1 of these cyanobacteria, female B.triarticulata voided 70% by volume of the material they ingested as compact faecal pellets. By their grazing they also decreased dramatically the trichome lengths of A.flos-aquae, A.oscillarioides and Nostoc sp. 2, thereby possibly altering the potential susceptibility of these filamentous cyanobacteria to grazing by other zooplankton.</abstract><cop>Oxford</cop><pub>Oxford University Press</pub><doi>10.1093/plankt/12.1.201</doi><tpages>13</tpages></addata></record> |
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| ispartof | Journal of plankton research, 1990, Vol.12 (1), p.201-213 |
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| language | eng |
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| source | Oxford University Press Archive |
| subjects | Animal and plant ecology Animal, plant and microbial ecology Animals Autoecology Biochemistry. Physiology. Immunology Biological and medical sciences Boeckella Crustacea Cyanophyta Freshwater Fundamental and applied biological sciences. Psychology Invertebrates Physiology. Development Protozoa. Invertebrata |
| title | Calanoid copepods feeding on algae and filamentous cyanobacteria: rates of ingestion, defaecation and effects on trichome length |
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