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Foraminiferal responses to heavy metal levels in the West coast of India

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Field	Value

Title	Foraminiferal responses to heavy metal levels in the West coast of India

Creator	Amrutha, A V Rajashekhar, K. P. Somashekarappa, H.M.

Subject	Benthic foraminifera Heavy metals Sediment pollution West coast of India

Description	204-216 Surface intertidal sediment samples were analyzed for Cu, Pb, Ni, Fe and Zn concentrations as well as for the species composition of benthic foraminifera. Results show high levels of metallic contamination with extremely severe enrichment of Pb at both sites indicates higher anthropogenic inputs. Twenty three species belonging to 2 orders (Rotaliina and Miliolina) and 8 families (Rotaliidae, Spiroloculinidae, Rosalinidae, Hauerinidae, Nonionidae, Elphidiidae, Saccamminidae and Eponididae) were identified. <em>Rotallidium annectans </em> were dominant, comprising 94% and 75% of total populations at Payyannur and Panambur, respectively. Increasing heavy metal enrichment results in a lower species diversity as well as population density, associated with an increase in tolerant or opportunistic species. <em>Ammonia sp</em>. and <em>Elphidium sp</em>. found to be more tolerant to higher concentrations of heavy metals than <em>Rotalidium annectans</em>. The extent to which the population was found less dense and diversified was corresponded to the degree to which the sediment was contaminated.

Date	2018-01-15T07:45:14Z 2018-01-15T07:45:14Z 2018-01

Type	Article

Identifier	0975-1033 (Online); 0379-5136 (Print) http://nopr.niscair.res.in/handle/123456789/43436

Language	en_US

Rights	<img src='http://nopr.niscair.res.in/image/cc-license-sml.png'> <a href='http://creativecommons.org/licenses/by-nc-nd/2.5/in' target='_blank'>CC Attribution-Noncommercial-No Derivative Works 2.5 India</a>

Publisher	NISCAIR-CSIR, India

Source	IJMS Vol.47(01) [January 2018]