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Stable carbon and nitrogen isotope ratios of penaeid juveniles and primary producers in a riverine mangrove in Guimaras, Philippines

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Date
1996
Author
Primavera, Jurgenne
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Abstract
Stable carbon and nitrogen isotope ratios were analyzed for primary producers and juveniles of four penaeid species (Metapenaeus ensis, Penaeus indicus, P. merquiensi and P. monodon) in a riverine mangrove in Guimaras, central Philippines. δ13C values of shrimp (- 15.5 to - 19.6‰) were closer to phytoplankton (-23.8‰) and possibly epiphytic algae (-24.2‰) than to mangrove leaves (-26.9 to -30.0‰) or detritus (-28.0‰). Differences in δ15N values suggested 2-3 trophic shifts between phytoplankton (0.6‰) and shrimp (6.9‰), assuming a 2.4‰ enrichment per trophic level. There were no significant differences in δ13C and δ15N ratios between green and decomposing leaves, and among mangrove species, shrimp species and different size groups of shrimp.
URI
http://hdl.handle.net/10862/1573
Suggested Citation
Primavera, J. (1996). Stable carbon and nitrogen isotope ratios of penaeid juveniles and primary producers in a riverine mangrove in Guimaras, Philippines. Bulletin of Marine Science, 58(3), 675-683.
Subject
Algae ASFA; carbon ASFA; carbon isotopes ASFA; detritus feeders ASFA; Diets; live feeds ASFA; juveniles ASFA; mangrove swamps ASFA; nitrogen ASFA; nitrogen isotopes ASFA; nursery grounds ASFA; phytoplankton ASFA; trophic structure ASFA; Metapenaeus; Penaeidae; Penaeus; Philippines; Primary productivity
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