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01.02.2013 | Original Article

Nutrient biogeochemistry of the eastern Arabian Sea during the southwest monsoon retreat

verfasst von: Rejomon George, K. R. Muraleedharan, G. D. Martin, P. Sabu, Vijay John Gerson, P. K. Dineshkumar, S. M. Nair, N. Chandramohanakumar, K. K. C. Nair

Erschienen in: Environmental Earth Sciences | Ausgabe 3/2013

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Abstract

Hydrography of the eastern Arabian Sea and associated chemical and biological responses were studied during the withdrawal phase of summer monsoon 2003. The shelf region off the southwest coast of India (10°N–15°N) continued to exhibit upwelling of colder (<28.5 °C), nutrient rich (nitrate >2.0 μM, phosphate >0.8 μM, silicate >4.0 μM) and relatively low oxygenated waters (~180 μM). The vertical advection of nutrients, coupled with anthropogenic terrestrial inputs, enhanced the levels of chlorophyll and primary productivity near the coastal margin off Cochin. The influence of both natural and anthropogenic nutrient loadings on the coastal system of the western continental shelf of India leads to eutrophication and hypoxia with negative impacts on the environment in general and fisheries in particular.

Vorheriger Artikel Assessment of naturally occurring arsenic contamination in the groundwater of Sarkisla Plain (Sivas/Turkey)

Nächster Artikel A study of differentiation pattern and rare earth elements migration in geochemical and hydrogeochemical environments of Airekan and Cheshmeh Shotori areas (Central Iran)

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Titel: Nutrient biogeochemistry of the eastern Arabian Sea during the southwest monsoon retreat
verfasst von: Rejomon George
K. R. Muraleedharan
G. D. Martin
P. Sabu
Vijay John Gerson
P. K. Dineshkumar
S. M. Nair
N. Chandramohanakumar
K. K. C. Nair
Publikationsdatum: 01.02.2013
Verlag: Springer-Verlag
Erschienen in: Environmental Earth Sciences / Ausgabe 3/2013
Print ISSN: 1866-6280
Elektronische ISSN: 1866-6299
DOI: https://doi.org/10.1007/s12665-012-1772-2

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