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Wyszukujesz frazę "Gireeshkumar, T.R." wg kryterium: Autor


Wyświetlanie 1-1 z 1
Tytuł:
Response of coastal phytoplankton to upwelling induced hydrological changes in the Alappuzha mud bank region, Southwest coast of India
Autorzy:
Madhu, N.V.
Anil, P.
Meenu, P.
Gireeshkumar, T.R.
Muraleedharan, K.R.
Rehitha, T.V.
Dayana, M.
Vishal, C.R.
Powiązania:
https://bibliotekanauki.pl/articles/2078930.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
phytoplankton
hydrological change
coastal upwelling
chlorophyll a
algal bloom
mud bank
nearshore area
Alappuzha
India
Opis:
The response of phytoplankton community to the co-existing events of coastal upwelling and mud banks in the nearshore waters of Alappuzha (15 m depth), located in the southwest coast of India from April to November 2016, is described based on size-fractionated phytoplankton biomass (chlorophyll a), primary production and community composition. The study region exhibited well-distinct spatio-temporal hydrological changes because of the influence of wind-driven coastal upwelling, prevalent during the southwest monsoon (SWM) period. However, the formation of mud banks, in addition to coastal upwelling, was observed at station M2, which facilitated the substantial increase of water column turbidity and inorganic nutrients (ammonium, phosphate, and silicate) during and after the peak SWM period compared to the non-mud bank reference stations (M1 and M3). The prevailing hydrological changes were complemented the corresponding phytoplankton productivity patterns, in which profound domination of nanophytoplankton (2—20 μm) chlorophyll a and primary production was observed throughout the study region, irrespective of seasons. The SIMPER analysis, based on phytoplankton (mostly >20 μm) species composition data (microscopy), revealed the formation of certain characterizing species, mainly comprised of diatoms and dinoflagellates. The consistent predominance of the nanophytoplankton, established under variable hydrological scenarios, showed that the inorganic nutrient (specifically ammonium) availability was instrumental in defining the widespread growth of nanophytoplankton community compared to the prevailing light levels. The present study thus revealed that even the small-sized phytoplankton community could survive in the nutrient-enriched coastal waters, characterised by the co-existing upwelling and mud banks.
Źródło:
Oceanologia; 2021, 63, 2; 261-275
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-1 z 1

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