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Article: Stable-isotope determination of mayfly (insecta: Ephemeroptera) food sources in three tropical Asian streams

TitleStable-isotope determination of mayfly (insecta: Ephemeroptera) food sources in three tropical Asian streams
Authors
KeywordsAllochthonous food
C-13
Epilithon
N-15
Nutrition
Issue Date2001
PublisherE Schweizerbart'sche Verlagsbuchhandlung. The Journal's web site is located at http://www.schweizerbart.de/j/archiv-hydrobiologie
Citation
Archiv Fur Hydrobiologie, 2001, v. 151 n. 1, p. 17-32 How to Cite?
AbstractCarbon and nitrogen stable isotopes were used to determine the foods assimilated by mayflies in three Hong Kong streams: Tai Po Kau Forest Stream (Forested 1), Shing Mun River (Forested 2), and an open (Open 1) and a shaded section (Shaded 1) of the Lam Tsuen River. Analyses were carried out during both wet and dry seasons. A total of seven mayfly species (Heptageniidae, Leptophlebiidae and Baetidae; four or five species per site) were included. During the dry season, mayflies in the two forest streams (1 and 2) fed mainly on autochthonous foods (33-100%) especially cyanobacteria and Cladophora spp. in Forested 1. During the wet season, the use of allochthonous food increased (13-100 %) in Forested 1 and 2, but the importance of autochthonous foods in shaded streams with ample stocks of detritus was nevertheless surprising. Mayflies in both Open 1 and Shaded 1 derived most of their biomass from a variety of autochthonous foods during both seasons, but epilithon was the dominant wet season food. Moreover, allochthonous foods did not appear to contribute significantly to the diet of mayflies during any season at Shaded 1. When compared with published literature, these results suggest that use of allochthonous foods in tropical streams may be greater than in temperate latitudes where allochthonous energy sources appear to dominate community energy flows in small streams.
Persistent Identifierhttp://hdl.handle.net/10722/73427
ISSN
2008 Impact Factor: 1.293
References

 

DC FieldValueLanguage
dc.contributor.authorSalas, Men_HK
dc.contributor.authorDudgeon, Den_HK
dc.date.accessioned2010-09-06T06:51:10Z-
dc.date.available2010-09-06T06:51:10Z-
dc.date.issued2001en_HK
dc.identifier.citationArchiv Fur Hydrobiologie, 2001, v. 151 n. 1, p. 17-32en_HK
dc.identifier.issn0003-9136en_HK
dc.identifier.urihttp://hdl.handle.net/10722/73427-
dc.description.abstractCarbon and nitrogen stable isotopes were used to determine the foods assimilated by mayflies in three Hong Kong streams: Tai Po Kau Forest Stream (Forested 1), Shing Mun River (Forested 2), and an open (Open 1) and a shaded section (Shaded 1) of the Lam Tsuen River. Analyses were carried out during both wet and dry seasons. A total of seven mayfly species (Heptageniidae, Leptophlebiidae and Baetidae; four or five species per site) were included. During the dry season, mayflies in the two forest streams (1 and 2) fed mainly on autochthonous foods (33-100%) especially cyanobacteria and Cladophora spp. in Forested 1. During the wet season, the use of allochthonous food increased (13-100 %) in Forested 1 and 2, but the importance of autochthonous foods in shaded streams with ample stocks of detritus was nevertheless surprising. Mayflies in both Open 1 and Shaded 1 derived most of their biomass from a variety of autochthonous foods during both seasons, but epilithon was the dominant wet season food. Moreover, allochthonous foods did not appear to contribute significantly to the diet of mayflies during any season at Shaded 1. When compared with published literature, these results suggest that use of allochthonous foods in tropical streams may be greater than in temperate latitudes where allochthonous energy sources appear to dominate community energy flows in small streams.en_HK
dc.languageengen_HK
dc.publisherE Schweizerbart'sche Verlagsbuchhandlung. The Journal's web site is located at http://www.schweizerbart.de/j/archiv-hydrobiologieen_HK
dc.relation.ispartofArchiv fur Hydrobiologieen_HK
dc.subjectAllochthonous fooden_HK
dc.subjectC-13en_HK
dc.subjectEpilithonen_HK
dc.subjectN-15en_HK
dc.subjectNutritionen_HK
dc.titleStable-isotope determination of mayfly (insecta: Ephemeroptera) food sources in three tropical Asian streamsen_HK
dc.typeArticleen_HK
dc.identifier.emailDudgeon, D: ddudgeon@hku.hken_HK
dc.identifier.authorityDudgeon, D=rp00691en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-0035062345en_HK
dc.identifier.hkuros68013en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0035062345&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume151en_HK
dc.identifier.issue1en_HK
dc.identifier.spage17en_HK
dc.identifier.epage32en_HK
dc.publisher.placeGermanyen_HK
dc.identifier.scopusauthoridSalas, M=7201582964en_HK
dc.identifier.scopusauthoridDudgeon, D=7006559840en_HK

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