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dc.contributor.authorBoonyapiwat, Sopana
dc.date.accessioned2019-01-14T09:33:08Z
dc.date.available2019-01-14T09:33:08Z
dc.date.issued2000
dc.identifier.citationBoonyapiwat, S. (2000). Species composition, abundance and distribution of phytoplankton in the thermocline layer in the South China Sea, Area III: Western Philippines. In Proceedings of the Third Technical Seminar on Marine Fishery Resources Survey in the South China Sea, Area III: Western Philippines, 13-15 July 1999 (pp. 197-216). Bangkok, Thailand: Secretariat, Southeast Asian Fisheries Development Center.en
dc.identifier.isbn9747604655
dc.identifier.urihttp://hdl.handle.net/20.500.12066/4353
dc.description.abstractPhytoplankton density, taxonomic composition and distribution in the thermocline layer were investigated to compare with those in the surface layer of 31 stations in the western Philippines during 17 April – 9 May 1998. The samples were collected from surface, thermocline depth (the beginning of thermocline), and chlorophyll maximum depth. In this study, thermocline depth and chlorophyll maximum depth were included in the thermocline layer. Three hundred and thirty-eight taxa, composed of 2 species of blue green alga, 144 species of diatoms and 168 species of dinoflagellates were identified. The occurrence of the species in each sampling depth were recorded. Phytoplankton densities at chlorophyll maximum depth were mostly highest among the sampling depths observed. The most abundance was 20,683 cells/l found at thermocline depth of station 24 due to the blooms of many diatom species. Oscillatoria (Trichodesmium) erythraea and Chaetoceros lorenzianus were dominant from surface through chlorophyll maximum depth. Seven species of diatoms presented as the dominant species only in the thermocline layer. The toxic dinoflagellates were found in low cell densities. Diversity and evenness indices of phytoplankton at chlorophyll maximum depth were high.en
dc.language.isoenen
dc.publisherSecretariat, Southeast Asian Fisheries Development Centeren
dc.subjectSouth China Seaen
dc.subjectPhilippinesen
dc.subjectDinoflagellata
dc.subjectBacillariophyceae
dc.titleSpecies composition, abundance and distribution of phytoplankton in the thermocline layer in the South China Sea, Area III: Western Philippinesen
dc.typeConference paperen
dc.citation.spage197
dc.citation.epage216
dc.subject.asfadominant speciesen
dc.subject.asfaabundanceen
dc.subject.asfapopulation densityen
dc.subject.asfaphytoplanktonen
dc.subject.asfathermoclineen
dc.citation.conferenceTitleProceedings of the Third Technical Seminar on Marine Fishery Resources Survey in the South China Sea, Area III: Western Philippines, 13-15 July 1999en


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