Textural characteristics and ecology of near shore benthic foraminifera from Kottaipattinam to Kodiyakarai, Palk Strait, Southeast Coast of India

Kasilingam, K.; Gandhi, M. Suresh; Rao, N. Rajeshwara

doi:10.1016/j.rsma.2019.100632

Cited by 2 publications

(1 citation statement)

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“…Moreover, benthic foraminifera can also dominate in low oxygen conditions, which support less diversity with high abundance, because the respiratory oxygen demand of benthic foraminifera is less. This explains their ability to survive in such conditions (Gupta and Machain-Castillo 1993) and also adapt to marine salinity levels (Kasilingam et al 2019) Application of site-speci c multi-indices helps to best describe the ecological status of coastal ecosystems based on the pollution load as well as the benthic diversity (Ryu et al 2016). The AMBI and M-AMBI indices developed by European Water Framework Directive (WFD) provided insights in the ecological health status (Selvaraj et al 2019) of the 14 sampling stations in the southwest coast of Tamil Nadu.…”

Section: Discussionmentioning

confidence: 99%

Assessment of ecosystem health status using benthic diversity as tools in coastal sediment off the southwest coast, India

Arya

Godson

Selvaraj³

et al. 2022

Preprint

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The diversity of macro and meiobenthos was documented in order to assess the ecosystem health of an anthropogenically impacted coastal ecosystem for the first time along the southwest coast of Tamil Nadu. Offshore sediment and water samples (n = 63) were collected from 14 sampling stations using the grid sampling method. Water and sediment samples were analysed for environmental variables such as pH, temperature, electrical conductivity (EC), total dissolved solids (TDS), salinity, sulphate, dissolved oxygen (DO), carbohydrate (CHO), protein, lipid, labile organic matter (LOM), total organic carbon (Corg), total organic matter (TOM) and sediment texture using standard methods. Benthic macro and meiobenthos were isolated and identified using standard identification keys. A total of 5 phyla of macrobenthos with 29 species and 5 phyla of benthos with 60 species were identified in the study area. Relative abundance analysis showed that the largest numbers of species belonged to Polychaeta for macrobenthos and foraminifera for meiobenthos. Redundancy analysis indicated that sediment carbohydrate content was the highest determining factor for explaining variation in the diversity of benthos. AMBI & M-AMBI results revealed that among the 14 stations, 2 were categorized as “poor” and 9 as “bad”. Multiple anthropogenic activities in the coastal environment leading to increased organic matter input have resulted in a decline in the ecosystem health of this region, which warrants site-specific management to control organic pollution.

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Section: Discussionmentioning

confidence: 99%