Testing performances of marine benthic biotic indices under the strong seasonality in the tropical intertidal habitats, South Andaman, India

Equbal, Jawed; Lakra, Raj Kiran; Savurirajan, M.; Satyam, Kunal; Thiruchitrambalam, Ganesh

doi:10.1016/j.marpolbul.2018.07.034

Cited by 24 publications

(8 citation statements)

References 48 publications

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“…A similar pattern was also found in areas influenced by monsoons, where large changes in the benthic fauna were related to the high rainfall during monsoon months (Ansell et al, 1972;Equbal et al, 2018;Pandey & Thiruchitrambalam, 2019).…”

Section: Ta B L E 2 Summary Of Anova Resultssupporting

confidence: 64%

“…High pluviosity sharply reduces salinity, leading to the restriction or exclusion of species that are exclusively marine or poorly adapted to low salinity (Kinne, 1971). A similar pattern was also found in areas influenced by monsoons, where large changes in the benthic fauna were related to the high rainfall during monsoon months (Ansell et al., 1972; Equbal et al., 2018; Pandey & Thiruchitrambalam, 2019).…”

Section: Discussionsupporting

confidence: 62%

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Patterns of spatial and temporal distribution of the macrobenthic fauna on an estuarine macrotidal sandy beach on the Amazon coast (Brazil)

et al. 2021

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Section: Ta B L E 2 Summary Of Anova Resultssupporting

confidence: 64%

Section: Discussionsupporting

confidence: 62%

Patterns of spatial and temporal distribution of the macrobenthic fauna on an estuarine macrotidal sandy beach on the Amazon coast (Brazil)

et al. 2021

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“…However, for regions strongly influenced by season, coastal dynamics, and anthropogenic disturbances, the univariate AMBI could show a high degree of variability than the multimetric M-AMBI (Kröncke and Reiss, 2010). The temporal variability of AMBI was indeed found to be less than M-AMBI (Equbal et al, 2018). Nevertheless, the marine biotic index, especially the M-AMBI, appeared to be more robust and realistic in grading the habitat quality into different classes.…”

Section: Benthic Quality Status Of the Mahanadi Estuarymentioning

confidence: 88%

Macrobenthic community of an anthropogenically influenced mangrove associated estuary on the East coast of India: An approach for ecological assessment

et al. 2022

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The Mahanadi Estuarine System (MES), with a complex network of freshwater channels, rivers, and mangroves, is a leading seaport in State Odisha on the east coast of India, but subjected to intense human activity in recent years. Such anthropic impingements are known to impact sediment-dwelling biota adversely. However, information on the macrobenthic community of the MES is not well documented yet. Therefore, the primary objectives of this study (February 2013-March 2017) were to address knowledge gaps on the macrobenthic community structure vis-à-vis local environmental conditions and to evaluate the extent of anthropogenic disturbances on macrobenthos. The results from 264 benthic grab samples (van Veen, 0.04 m2; 2 replicates × 12 GPS fixed locations × 3 seasons) revealed 73 taxa representing 64 genera and 48 families of macrobenthic fauna. The polychaetes (81.41%) and crustaceans (15.42%) were significant faunal groups that contributed mainly to the benthic population and diversity. Multivariate approaches using benthic community attributes and biotic indices (AMBI and M-AMBI) as proxy measures of environmental disturbances proved effective for appraisal. The correlations between the environmental parameters (temperature, pH, salinity) and community estimates were statistically significant. Hierarchical clustering analysis disclosed three major groups (Global R 0.70; p < 0.002) influenced by tolerant/opportunist species. The lower abundance, richness, diversity, and dominance of opportunistic species mark the signs of environmental stress. The community health status remained unbalanced, as indicated by AMBI scoring. M-AMBI analysis contributed best in differentiating areas exposed to diverse impacts and indicated polluted community health status with moderate ecological quality. Our results reiterate the effective use of macrobenthos as bioindicators for ecological status and monitoring. The findings could be utilized for future monitoring assessments, translated into valuable information, and designed into well-defined sustainable management strategies for the MES.

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“…The patterns of the spatial distribution of fish and crustaceans along the sandy beaches often allude to the degree of disturbance as shallow bays and beaches are the coastal ecosystems most threatened by the anthropogenic activities and habitat changes (Omena et al, 2012;Equbal et al, 2018). The fish and crustacean ecology have been studied in the backdrop of sandy beaches on a global scale.…”

Section: Introductionmentioning

confidence: 99%

“…The biodiversity and its distribution patterns are conspicuous in the tropical regions and manifested in the seasonal variations of the population and community structures of the intertidal organisms (Nicolaidou et al, 2006b;Equbal et al, 2018). Monsoon patterns equally influence the freshwater and marine biodiversity (Atique and An, 2018;Hara et al, 2020;Atique et al, 2020b;Haque et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Linking fish and crustacean taxonomic composition with seasonal contrasts in the soft-bottom intertidal zone

et al. 2021

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The primary objective of this study was to investigate the seasonal fish and crustacean variations concerning taxonomic composition, species richness, and diversity in sandy beach habitat. For this purpose, we investigated the Sonmiani Hor lagoon area during four distinct seasons, i.e., northeast (NE) monsoon, pre-monsoon, south-west (SW) monsoon, and post-monsoon for one year. During each haul, the net was pulled about 100m along the beach in 0.5m depth. The results showed a strong linear correlation between the diversity index and equitability in fishes (r = 0.978). The diversity index was strong negatively correlated with the abundance and biomass (r = -0.978, -0.972, respectively). The physical attributes like sea surface water temperature and salinity showed a strong negative effect on species assemblages (r = -0.981 and -0.943, respectively). The mean air and water temperature illustrated approximately 3°C difference during NE and pre-monsoon seasons. However, salinity, pH, and electrical conductivity did not show any significant seasonal variabilities. Under the ecological indices, the fish species displayed higher diversity (H’ = 3.19) during SW monsoon, whereas the lowest diversity was observed during pre-monsoon (H’ = 1.58). The equitability and species richness, however, remained more noticeable during SW monsoon (J’ = 0.81). The total number of individuals of fish and crustaceans reached 4799 with 3813 fish individuals and 986 individuals of crustaceans. A total of 27 families of fish while five crustacean families comprising of 30 genera and 38 fish species while ten genera and 17 species of crustaceans were recorded. Liza subviridis displayed the highest abundance among the sampled fish species. In conclusion, fish species constituted a significant part of the coastal fauna in the study area. The seasonal variations displayed distinct variations in fish species composition and diversity.

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Testing performances of marine benthic biotic indices under the strong seasonality in the tropical intertidal habitats, South Andaman, India

Cited by 24 publications

References 48 publications

Patterns of spatial and temporal distribution of the macrobenthic fauna on an estuarine macrotidal sandy beach on the Amazon coast (Brazil)

Patterns of spatial and temporal distribution of the macrobenthic fauna on an estuarine macrotidal sandy beach on the Amazon coast (Brazil)

Macrobenthic community of an anthropogenically influenced mangrove associated estuary on the East coast of India: An approach for ecological assessment

Linking fish and crustacean taxonomic composition with seasonal contrasts in the soft-bottom intertidal zone

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