Mangrove sediment core analysis of foraminiferal assemblages - a study at two sites along the western coast of India

Mangroves are an unique habitat and are largely influenced by sea level changes and wave energy. Foraminifera (Protista) preserved in mangrove sediments provide an excellent proxy for deducing past conditions. One meter deep mangrove core samples at two sites on the western coast of India were colle...

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Main Authors: P. Vidya, R.K. Patil
Format: Article
Language:English
Published: Wildlife Information Liaison Development Society 2014-02-01
Series:Journal of Threatened Taxa
Online Access:http://threatenedtaxa.org/index.php/JoTT/article/view/971
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author P. Vidya
R.K. Patil
author_facet P. Vidya
R.K. Patil
author_sort P. Vidya
collection DOAJ
description Mangroves are an unique habitat and are largely influenced by sea level changes and wave energy. Foraminifera (Protista) preserved in mangrove sediments provide an excellent proxy for deducing past conditions. One meter deep mangrove core samples at two sites on the western coast of India were collected. The foraminiferal assemblages at various depths showed significant changes in the abundance and diversity down the cores. A total of 59 species belonging to 32 genera, 24 families and five suborders were identified from the cores of these two sites. The cores showed an abundance of genus Rotalidium particularly the species Rotalidium annectans. Other species identified include Ammonia, Elphidium, Nonion, Spiroloculina, Quinqueloculina, Globigerinoides, etc. The pH, organic matter and CaCO3 also showed variations down the cores. There was a lack of correlation between sediment characteristics and the abundance of foraminifera in the cores. The low diversity and differences in distribution of foraminifera compared to surface intertidal samples may be due to intense post depositional changes or anthropogenic disturbances. The mangrove ecology thus appears disturbed by various factors.
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spelling doaj.art-c82075fbfb1644c39b54eff63466a9d92022-12-22T03:44:23ZengWildlife Information Liaison Development SocietyJournal of Threatened Taxa0974-78930974-79072014-02-01625485549110.11609/JoTT.o3653.5485-91953Mangrove sediment core analysis of foraminiferal assemblages - a study at two sites along the western coast of IndiaP. VidyaR.K. PatilMangroves are an unique habitat and are largely influenced by sea level changes and wave energy. Foraminifera (Protista) preserved in mangrove sediments provide an excellent proxy for deducing past conditions. One meter deep mangrove core samples at two sites on the western coast of India were collected. The foraminiferal assemblages at various depths showed significant changes in the abundance and diversity down the cores. A total of 59 species belonging to 32 genera, 24 families and five suborders were identified from the cores of these two sites. The cores showed an abundance of genus Rotalidium particularly the species Rotalidium annectans. Other species identified include Ammonia, Elphidium, Nonion, Spiroloculina, Quinqueloculina, Globigerinoides, etc. The pH, organic matter and CaCO3 also showed variations down the cores. There was a lack of correlation between sediment characteristics and the abundance of foraminifera in the cores. The low diversity and differences in distribution of foraminifera compared to surface intertidal samples may be due to intense post depositional changes or anthropogenic disturbances. The mangrove ecology thus appears disturbed by various factors.http://threatenedtaxa.org/index.php/JoTT/article/view/971
spellingShingle P. Vidya
R.K. Patil
Mangrove sediment core analysis of foraminiferal assemblages - a study at two sites along the western coast of India
Journal of Threatened Taxa
title Mangrove sediment core analysis of foraminiferal assemblages - a study at two sites along the western coast of India
title_full Mangrove sediment core analysis of foraminiferal assemblages - a study at two sites along the western coast of India
title_fullStr Mangrove sediment core analysis of foraminiferal assemblages - a study at two sites along the western coast of India
title_full_unstemmed Mangrove sediment core analysis of foraminiferal assemblages - a study at two sites along the western coast of India
title_short Mangrove sediment core analysis of foraminiferal assemblages - a study at two sites along the western coast of India
title_sort mangrove sediment core analysis of foraminiferal assemblages a study at two sites along the western coast of india
url http://threatenedtaxa.org/index.php/JoTT/article/view/971
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