Feeding ecology of the American crab Rhithropanopeus harrisii (Crustacea, Decapoda) in the coastal waters of the Baltic Sea
The feeding ecology of the American crab Rhithropanopeus harrisii Gould, 1841 from brackish waters of the Baltic Sea was studied by analyses of the stomach repletion index (SRI) and stomach content with regard to sex, size and habitat (Dead Vistula River and the Gulf of Gdańsk). Neither the sex nor...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Elsevier
2009-01-01
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| Series: | Oceanologia |
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| Online Access: | http://www.iopan.gda.pl/oceanologia/51_3.html#A4 |
| _version_ | 1818231542388883456 |
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| author | Joanna Hegele-Drywa Monika Normant |
| author_facet | Joanna Hegele-Drywa Monika Normant |
| author_sort | Joanna Hegele-Drywa |
| collection | DOAJ |
| description | The feeding ecology of the American crab Rhithropanopeus harrisii Gould, 1841 from brackish waters of the Baltic Sea was studied by analyses of the stomach repletion index (SRI) and stomach content with regard to sex, size and habitat (Dead Vistula River and the Gulf of Gdańsk). Neither the sex nor the size of an individual crab had a significant (P > 0.05) influence on the SRI or on the diversity of food items found in the stomachs of R. harrisii. But the type of food consumed was significantly (P < 0.05) dependent on the locality inhabited: the greater the biodiversity of the habitat, the richer the dietary composition. In Baltic coastal waters this species feeds on detritus, and also on animal and plant matter. Remains of Chlorophyta, Amphipoda, Ostracoda, Polychaeta, Gastropoda and Bivalvia were found in the stomachs of the specimens analysed. |
| first_indexed | 2024-12-12T10:52:03Z |
| format | Article |
| id | doaj.art-ae67efd3cc4449febd7fdc7aaeffcb97 |
| institution | Directory Open Access Journal |
| issn | 0078-3234 |
| language | English |
| last_indexed | 2024-12-12T10:52:03Z |
| publishDate | 2009-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Oceanologia |
| spelling | doaj.art-ae67efd3cc4449febd7fdc7aaeffcb972022-12-22T00:26:45ZengElsevierOceanologia0078-32342009-01-01513361375Feeding ecology of the American crab Rhithropanopeus harrisii (Crustacea, Decapoda) in the coastal waters of the Baltic SeaJoanna Hegele-DrywaMonika NormantThe feeding ecology of the American crab Rhithropanopeus harrisii Gould, 1841 from brackish waters of the Baltic Sea was studied by analyses of the stomach repletion index (SRI) and stomach content with regard to sex, size and habitat (Dead Vistula River and the Gulf of Gdańsk). Neither the sex nor the size of an individual crab had a significant (P > 0.05) influence on the SRI or on the diversity of food items found in the stomachs of R. harrisii. But the type of food consumed was significantly (P < 0.05) dependent on the locality inhabited: the greater the biodiversity of the habitat, the richer the dietary composition. In Baltic coastal waters this species feeds on detritus, and also on animal and plant matter. Remains of Chlorophyta, Amphipoda, Ostracoda, Polychaeta, Gastropoda and Bivalvia were found in the stomachs of the specimens analysed.http://www.iopan.gda.pl/oceanologia/51_3.html#A4Rhithropanopeus harrisiiNon-native speciesFeeding ecologyStomach contentBaltic Sea |
| spellingShingle | Joanna Hegele-Drywa Monika Normant Feeding ecology of the American crab Rhithropanopeus harrisii (Crustacea, Decapoda) in the coastal waters of the Baltic Sea Oceanologia Rhithropanopeus harrisii Non-native species Feeding ecology Stomach content Baltic Sea |
| title | Feeding ecology of the American crab Rhithropanopeus harrisii (Crustacea, Decapoda) in the coastal waters of the Baltic Sea |
| title_full | Feeding ecology of the American crab Rhithropanopeus harrisii (Crustacea, Decapoda) in the coastal waters of the Baltic Sea |
| title_fullStr | Feeding ecology of the American crab Rhithropanopeus harrisii (Crustacea, Decapoda) in the coastal waters of the Baltic Sea |
| title_full_unstemmed | Feeding ecology of the American crab Rhithropanopeus harrisii (Crustacea, Decapoda) in the coastal waters of the Baltic Sea |
| title_short | Feeding ecology of the American crab Rhithropanopeus harrisii (Crustacea, Decapoda) in the coastal waters of the Baltic Sea |
| title_sort | feeding ecology of the american crab rhithropanopeus harrisii crustacea decapoda in the coastal waters of the baltic sea |
| topic | Rhithropanopeus harrisii Non-native species Feeding ecology Stomach content Baltic Sea |
| url | http://www.iopan.gda.pl/oceanologia/51_3.html#A4 |
| work_keys_str_mv | AT joannahegeledrywa feedingecologyoftheamericancrabrhithropanopeusharrisiicrustaceadecapodainthecoastalwatersofthebalticsea AT monikanormant feedingecologyoftheamericancrabrhithropanopeusharrisiicrustaceadecapodainthecoastalwatersofthebalticsea |