Seasonal Variation in Benthic Macrofaunal Diversity and Distribution in Ambuliyar River and Sethubavachatram Coastal Waters, Southeast India
Journal Title: International Journal for Modern Trends in Science and Technology - Year 2024, Vol 10, Issue 11
Abstract
In the present study, benthic macrofaunal diversity and distribution in Ambuliyar River and Sethubavachatram coastal waters were studied and a total of 59 species of macrofauna consisting of three groups namely Polychaetes, Bivalve, and Gastropods were recorded with a maximum density of macrofauna (1650 Nos./m-2) in St-3. Among the four macrofaunal taxa, polychaetes topped the list with 49 species followed by Bivalves (6 species) and gastropods (4 species). Seasonally, the maximum number of macrofaunal species (36 species) was recorded at St-3 during post-monsoon, and the minimum (23 species) was recorded at St-5 during monsoon seasons. CCA and BIO-ENV (Biota-Environmental matching) analysis showed that the environmental parameters such as dissolved oxygen, salinity, w. pH, silt, sand, TOC, and Clay manifested as the best match (ρω = 0.942) in determining macrofaunal distribution in the surveyed stations. The maximum macrofauna diversity (3.467) and evenness (0.743) were recorded at St-3 and the maximum species richness was recorded (6.539) at St-5. The results of the present study would help to develop an understanding of the macrofaunal distribution based on physico-chemical parameters, which will form a reliable tool in bio-monitoring studies..
Authors and Affiliations
Selvarasu Mariyappan and Perumal Murugesan
Keywords
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- EP ID EP752211
- DOI https://doi.org/10.46501/IJMTST1011004
- Views 35
- Downloads 0
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