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dc.contributor.authorShirodkar, G.
dc.contributor.authorNaik, H.
dc.contributor.authorNaqvi, S.W.A.
dc.contributor.authorPratihary, A.K.
dc.contributor.authorHussain, A.
dc.contributor.authorShenoy, D.M.
dc.contributor.authorGauns, M.
dc.contributor.authorManikandan, B.
dc.contributor.authorManjrekar, S.
dc.contributor.authorPatil, Anagha
dc.date.accessioned2024-03-31
dc.date.accessioned2024-05-10T06:58:16Z
dc.date.available2024-03-12
dc.date.available2024-05-10T06:58:16Z
dc.date.issued2024
dc.identifier.citationMarine Environmental Research, vol.196; 2024; Article no: 106427
dc.identifier.issn0141-1136
dc.identifier.otherhttps://www.sciencedirect.com/science/article/abs/pii/S0141113624000886
dc.identifier.urihttps://doi.org/10.1016/J.MARENVRES.2024.106427
dc.identifier.urihttp://drs.nio.res.in/drs/handle/2264/9200
dc.descriptionIF(JCR2023) = 3.3
dc.description.abstractThe Western Indian Continental Shelf (WICS) experiences upwelling during the Southwest Monsoon (SWM), leading to deoxygenation and acidification of subsurface waters. The region has patchy growth of corals, e.g. in the Grande Island and Angria Bank. Measurements made during the late SWM of 2022 reveal that the shelf waters around the Grande Island were subject to varying environmental conditions, viz. lower temperature (21.3–26.1°C), oxygen (0–4.9 mL L−1) and pHT (7.506–7.927). Complete anoxia was associated with sulphide build-up to a maximum of 5.9 μmol L−1 at 17 m depth. An additional episodic condition (high temperature, low oxygen and pH) also occurred associated presumably with a plankton bloom in April 2017. Hence, unlike the offshore coral site Angria Bank, waters around the Grande Island experiences extreme changes in physico-chemical conditions (e.g. Ωarg ∼1.2–1.8 during October 2022) seasonally as reported here. The biogeochemical conditions are however not as intense (Ωarg = 0.6) as observed along the eastern boundary upwelling system of the Pacific Ocean.
dc.languageen
dc.publisherElsevier
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.titleSeasonally varying biogeochemical regime around the coral habitats off central west coast of India
dc.typeJournal Article
dc.affiliation.authorCSIR-National Institute of Oceanography, Dona Paula, Goa, India


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