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dc.contributor.authorSrinivas, T.
dc.contributor.authorSukumaran, S.
dc.contributor.authorRameshBabu, K.
dc.date.accessioned2024-10-03
dc.date.accessioned2024-10-10T11:46:04Z
dc.date.available2024-06-01
dc.date.available2024-10-10T11:46:04Z
dc.date.issued2024
dc.identifier.citationEnvironmental Science and Pollution Research, vol.31(27); 2024; 38756-38769
dc.identifier.issn1614-7499
dc.identifier.otherhttps://link.springer.com/article/10.1007/s11356-022-24231-x
dc.identifier.urihttps://doi.org/10.1007/S11356-022-24231-X
dc.identifier.urihttp://drs.nio.res.in/drs/handle/2264/9294
dc.descriptionIF2022= 5.8
dc.description.abstractGlobally, stable isotopic methods are rapidly being employed in food web studies to quantify the relative proportions of diverse primary carbon sources in an animal diet. Tropical estuarine ecosystems, one of the vital marine habitats, harbor complex food webs due to the multiplicity of habitats and resources. The complex system of inputs and exchanges of organic matter sometimes complicate identification of the carbon sources that support the higher trophic levels. To assess the primary food sources of four abundant amphipod species in the anthropogenically influenced upper Vashishti estuary, Carbon and Nitrogen stable isotopes were employed. Seasonal variations were significant for ?13C and ?15N of suspended particulate organic matter (SPOM) and also for ?13C of sediment organic matter (SOM), but not for the isotopic values of individual amphipod species. Significant variations in the ?13C and ?15N values between amphipods suggested species-specific diets. Mixing model output indicated discrepancies in seasonal variations of food preferences between species. Trophic level values of all amphipod species indicated seasonality with lower values during post-monsoon. The low ?15N values of SPOM, SOM, and amphipod species were possibly due to the anthropogenic input of nitrogen in the estuary.
dc.languageen
dc.publisherSpringer
dc.relation.isreferencedbySCI
dc.rightsOnly the author version of the copright reserved papers uploaded. Contact drs@nio.org for any complaints regarding copyright violations
dc.titleDifferential food utilization of benthic amphipods of a tropical estuary: A stable isotopic (?13C and ?15N) investigation
dc.typeJournal Article
dc.affiliation.authorForest Research Centre for Coastal Ecosystem, HPCL Colony, Pandurangapuram, Visakhapatnam, 530003, India


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