Assessment of benthic habitats of highly threatened oyster reefs of Pulicat Lake, India

被引:2
作者
Ramteke, Darwin [1 ]
Paramasivam, K. [1 ]
Viswanathan, C. [1 ]
Abhilash, K. R. [1 ]
Jeevamani, J. Joyson Joe [1 ]
Samuel, V. Deepak [1 ]
Sankar, R. [1 ]
Muruganandam, R. [1 ]
Purvaja, R. [1 ]
Ramesh, R. [1 ]
机构
[1] Natl Ctr Sustainable Coastal Management NCSCM, Minist Environm Forest & Climate Change MoEFCC, Anna Univ Campus, Chennai 600025, Tamil Nadu, India
关键词
Magallana bilineata; Pulicat Lake; Macrofauna; Oyster reef; Functional feeding group; GRAVELYI POLYCHAETA EUNICIDAE; CRASSOSTREA-VIRGINICA; AMERICAN OYSTER; ORGANIC-MATTER; CHESAPEAKE BAY; RIVER; RESTORATION; MUSSEL; RATES; FISH;
D O I
10.1016/j.rsma.2023.103122
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
The present study was aimed at demarcating the distribution of oyster habitats along the Pulicat Lake, the second largest brackish water lagoon in India, and investigating their benthic faunal assemblages and functional feeding groups. This study delineated three major reefs (6.70 ha, 5.50 ha, and 2.39 ha areas), and two minor beds (1.10 ha and 0.68 ha areas). Four species of oysters, namely, Magallana bilineata, Saccostrea cuccullata, Isognomon ephippium and Pinctada imbricata fucata were found in the oyster habitats, with M. bilineata being a major reef-forming/ecosystem forming species. Macrofaunal assemblages in the oyster habitats comprised 71 species representing five major phyla belonging to 66 genera under 48 families. Macrofauna were grouped into five Functional Feeding Groups (FFG) considering oyster habitats as a primary food provider. The FFG analysis revealed that the oyster reef/bed in Pulicat Lake is in moderate Ecological Quality Status (EQS). This study is considered very important to know the current extent of oyster reefs and gain a better understanding of the community interactions within oyster habitats and their ecological value to the dwelling species.& COPY; 2023 Elsevier B.V. All rights reserved.
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页数:15
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