Diversity and Distribution of Microzooplankton Tintinnid (Ciliata: Protozoa) in the Core Region of Indian Sundarban Wetland

The study first investigated the spatial distribution, diversity, and biomass of the planktonic choreotrich ciliate tintinnids inhabiting the biosphere reserve, the core region of Indian Sundarban mangrove wetland. A total of 21 species (eight genera and six families) were recorded including agglome...

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Published in:Clean : soil, air, water air, water, 2016-10, Vol.44 (10), p.1278-1286
Main Authors: Rakshit, Dibyendu, Sarkar, Santosh K., Satpathy, Kamala K., Ganesh, Palani Sankar, Godhantaraman, Nallamuthu, Biswas, Jayanta K.
Format: Article
Language:English
Subjects:
Biodiversity
Bioindicators
Biomass
Brackish
Ciliata
Codonellopsis
Eutintinnus apertus
Mangrove wetland
Tintinnopsis
Tintinnopsis beroidea
Tintinnopsis fimbriata
Tintinnopsis radix
Tintinnopsis tocantinensis
Water quality
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cited_by cdi_FETCH-LOGICAL-c4251-b809932798a121de93cd04b83ad1a08569f4a36f7e3a52736e10b0fbe6cde8dc3
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creator Rakshit, Dibyendu
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description The study first investigated the spatial distribution, diversity, and biomass of the planktonic choreotrich ciliate tintinnids inhabiting the biosphere reserve, the core region of Indian Sundarban mangrove wetland. A total of 21 species (eight genera and six families) were recorded including agglomerated and non‐agglomerated or hyaline forms from these intricate estuarine network systems. Maximum mean abundance (2747 ± 111 individuals L−1) and species diversity (H′ = 2.32) of tintinnid ciliate were recorded at the sampling site located towards the Bay of Bengal whereas lower abundance (666 ± 56 individuals L−1) and diversity (H′ = 1.55) were encountered towards inner part of the estuary. Tintinnopsis represented the most dominant agglutinated genus comprising of Tintinnopsis beroidea, Tintinnopsis fimbriata, Tintinnopsis cylindrica, Tintinnopsis tocantinensis, and Tintinnopsis radix, accounting ∼52% of total tintinnid community. The agglomerated forms Amphorellopsis tetragona, Eutintinnus apertus, Codonellopsis lusitanica, and T. fimbriata were recorded for the first time in this region. The biomass value exhibited wide range of variations (0.03 ± 0.09 to 12.4 ± 1.1 μg C L−1), accounting maximum value towards seaward region. The small‐sized tintinnid (lorica length
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A total of 21 species (eight genera and six families) were recorded including agglomerated and non‐agglomerated or hyaline forms from these intricate estuarine network systems. Maximum mean abundance (2747 ± 111 individuals L−1) and species diversity (H′ = 2.32) of tintinnid ciliate were recorded at the sampling site located towards the Bay of Bengal whereas lower abundance (666 ± 56 individuals L−1) and diversity (H′ = 1.55) were encountered towards inner part of the estuary. Tintinnopsis represented the most dominant agglutinated genus comprising of Tintinnopsis beroidea, Tintinnopsis fimbriata, Tintinnopsis cylindrica, Tintinnopsis tocantinensis, and Tintinnopsis radix, accounting ∼52% of total tintinnid community. The agglomerated forms Amphorellopsis tetragona, Eutintinnus apertus, Codonellopsis lusitanica, and T. fimbriata were recorded for the first time in this region. The biomass value exhibited wide range of variations (0.03 ± 0.09 to 12.4 ± 1.1 μg C L−1), accounting maximum value towards seaward region. The small‐sized tintinnid (lorica length &lt;40 μm) contributed the most dominant group (sharing ∼85% of total species abundance) in this core region and their presence was mainly governed by factors, namely, chlorophyll α, salinity, and nutrients (nitrate and silicate). The results of combining multivariate methods (RELATE and BIOENV analyses) reveal that chl a and nitrate were the potential significant factors for tintinnid abundance and distribution. The study first illustrates distribution and dynamics of pelagic tintinnid (Ciliata: Protozoa) community in the core regions of Indian Sundarban in context of variable environmental conditions. 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A total of 21 species (eight genera and six families) were recorded including agglomerated and non‐agglomerated or hyaline forms from these intricate estuarine network systems. Maximum mean abundance (2747 ± 111 individuals L−1) and species diversity (H′ = 2.32) of tintinnid ciliate were recorded at the sampling site located towards the Bay of Bengal whereas lower abundance (666 ± 56 individuals L−1) and diversity (H′ = 1.55) were encountered towards inner part of the estuary. Tintinnopsis represented the most dominant agglutinated genus comprising of Tintinnopsis beroidea, Tintinnopsis fimbriata, Tintinnopsis cylindrica, Tintinnopsis tocantinensis, and Tintinnopsis radix, accounting ∼52% of total tintinnid community. The agglomerated forms Amphorellopsis tetragona, Eutintinnus apertus, Codonellopsis lusitanica, and T. fimbriata were recorded for the first time in this region. The biomass value exhibited wide range of variations (0.03 ± 0.09 to 12.4 ± 1.1 μg C L−1), accounting maximum value towards seaward region. The small‐sized tintinnid (lorica length &lt;40 μm) contributed the most dominant group (sharing ∼85% of total species abundance) in this core region and their presence was mainly governed by factors, namely, chlorophyll α, salinity, and nutrients (nitrate and silicate). The results of combining multivariate methods (RELATE and BIOENV analyses) reveal that chl a and nitrate were the potential significant factors for tintinnid abundance and distribution. The study first illustrates distribution and dynamics of pelagic tintinnid (Ciliata: Protozoa) community in the core regions of Indian Sundarban in context of variable environmental conditions. The local intrinsic factors (chl a and nitrate) are most significant for their taxonomic biodiversity and can be used as robust bioindicator for water quality assessment in this productive ecosystem.</abstract><cop>Weinheim</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1002/clen.201500781</doi><tpages>9</tpages></addata></record>
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source Wiley-Blackwell Read & Publish Collection
subjects Biodiversity
Bioindicators
Biomass
Brackish
Ciliata
Codonellopsis
Eutintinnus apertus
Mangrove wetland
Tintinnopsis
Tintinnopsis beroidea
Tintinnopsis fimbriata
Tintinnopsis radix
Tintinnopsis tocantinensis
Water quality
title Diversity and Distribution of Microzooplankton Tintinnid (Ciliata: Protozoa) in the Core Region of Indian Sundarban Wetland
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