Benthic foraminifera as potential ecological proxies for environmental monitoring in coastal regions: A study on the Beypore estuary, Southwest coast of India

Sreenivasulu, G.; Praseetha, B.S.; Daud, Nurul Rabitah; Varghese, Tiju I.; Prakash, T. N.; Jayaraju, N.

doi:10.1016/j.marpolbul.2018.11.058

Cited by 23 publications

(10 citation statements)

References 42 publications

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“…The AEI was formerly established as an indicator of hypoxic conditions (Sreenivasulu et al, 2019). Studies have shown that the AEI has strong correlation with sediment hypoxia (Sen Gupta & Platon, 2006;Minhat et al, 2013).…”

Section: Ecological Indicesmentioning

confidence: 99%

Ecological modeling based on benthic foraminifera from Tupilipalem coast, southeast coast of India: Implications for ecological trajectory

Ganugapenta¹,

Jayaraju²,

Lakshmanna³

et al. 2021

Preprint

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Landsat 8 OLI/TIRS data of Tupilipalem coast demonstrations the periodic closure of lagoon mouth over a brief period affecting the ecological setting and the faunal diversity and distribution. The coastal ecosystem includes a significant metal pollutant due to anthropogenic activities. This study documents forty-nine numbers of benthic foraminiferal species and establishes its relationship with heavy metal concentrations (Fe, Mn, Cr, Cu, Ni, Pb, Zn and Cd). The factor loading matrix generated using factor analysis grades the positive and negative correlations among the heavy metals species. The results of geoaccumulation index, enrichment factor, and pollution load index, construes the seasonal differences in metal concentrations and prevalence of higher concentrations of metals in the sediments. Besides, this paper discusses the impact of coastal morphology on heavy metal concentrations coupled with ecology and distribution of benthic foraminifera.

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Section: Ecological Indicesmentioning

confidence: 99%

Ecological modeling based on benthic foraminifera from Tupilipalem coast, southeast coast of India: Implications for ecological trajectory

Ganugapenta¹,

Jayaraju²,

Lakshmanna³

et al. 2021

Preprint

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“…It indicates that the biological activity for brackish water is modified significantly due to its higher nutrient concentration. Sreenivasulu et al (2019) used benthic foraminifera as a bio-indicator for assessing the environmental stress in the Beypore estuary. They computed the benthic foraminiferal diversity index and inferred that the estuary was dominated by stress-tolerant taxa due to the prevalence of hypoxic (low-oxygen) conditions.…”

Section: Quaternarymentioning

confidence: 99%

Marine Micropalaeontology: An overview on Indian contributions during 2016-2019

Manoj¹,

Singh²,

Verma³

et al. 2020

PINSA

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Marine micropaleontology concerns biostratigraphy for dating and correlation of deep time sequences as well as in palaeoceanography to understand the marine processes of the past. For this, marine micropalaeontology utilizes detailed studies on exclusively marine microbiota such as foraminifers, nannofossils, diatoms, dinoflagellates, and others. This article discusses (in detail) our present state of palaeoceanographic knowledge based on marine micropalaeontology studies in the Indian sector. A detailed literature survey showcases that numerous studies have been carried out in deep time (Jurassic -Neogene) as well as Quaternary sediments utilizing marine microfossils from India. These studies from different geological periods and regions within the Indian territory such as Jurassic (Kutch Basin), Cretaceous and Cretaceous-Paleogene (K-Pg) transition (western, peninsular and northeast India), Palaeogene (northeast and western India), Neogene (Andaman & Nicobar Islands, northeast Indian Ocean), Quaternary (Indian Ocean, Southern Ocean, coastal and estuarine regions of peninsular India) have provided better insights to our previous understandings on various aspects that include biostratigraphy, paleoenvironment, evolution, ocean/land-climate variability, its dynamics and teleconnections.

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“…Foraminifera can help monitor the environmental status of both sandy and soft-bottom marine ecosystems (Hallock et al, 2003;Sreenivasulu et al, 2019;Sousa et al, 2020). Due to their widespread distribution, modern benthic foraminifera have been used to assess the ecological health of lagoon environments (Culver et al, 2012;Bouchet et al, 2018), estuaries (Nagendra and Reddy, 2019;Sreenivasulu et al, 2019), coral reefs (Nurruhwati et al, 2020;Prazeres et al, 2020), and modern harbours (Dijkstra et al, 2017). Moreover, foraminiferal assemblages are influenced by their immediate environment and have often served as modern and past analogues to characterise paleoenvironments (Rao et al, 2013;Benito et al, 2016;Minhat et al, 2016;Kemp et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

The Occurrence and Distribution of Benthic Foraminifera in Tropical Waters Along the Strait of Malacca

et al. 2021

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Foraminifera are shelled single-celled protists that are found in all marine environments. Benthic foraminifera either live in sediments or attach to surfaces on the seafloor. Understanding the distribution and ecological response of benthic foraminifera is crucial, as they can indicate past and current ocean conditions. However, the benthic foraminifera distribution along the busy Strait of Malacca, which connects the Indian Ocean (north) to the Java Sea (south), is undersampled. In this study, we collected 24 surface samples from the northern Strait of Malacca to understand the distribution of foraminifera assemblages in shallow tropical waters. A total of 49 species of benthic foraminifera were identified. Calcareous hyaline species dominated the assemblages, with an extremely low occurrence of calcareous porcelaneous species. The common calcareous hyaline taxa were Asterorotalia pulchella, Pseudorotalia schroeteriana, Discorbinella bertheloti, Ammonia tepida, and Heterolepa praecincta. Cluster analysis categorised the foraminiferal assemblages into three major groups. The first cluster (Group A) consisted of a more diverse assemblage of hyaline and agglutinated species that inhabited a mean water depth of 45 m. The second cluster represented a population that inhabited deeper water environments (average water depth of 59 m). Finally, the third cluster (Group C) consisted of a foraminifera assemblage that inhabited shallow coastal environments (average depth of 22 m) with higher organic matter enrichment. The multivariate canonical correspondence analysis (CCA) showed that the foraminiferal assemblages reflected the shallow to deep water transition in the Malacca Strait. Water depth, which defines the depositional environment, had a greater influence on foraminifera distribution here than organic matter and salinity.

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Benthic foraminifera as potential ecological proxies for environmental monitoring in coastal regions: A study on the Beypore estuary, Southwest coast of India

Cited by 23 publications

References 42 publications

Ecological modeling based on benthic foraminifera from Tupilipalem coast, southeast coast of India: Implications for ecological trajectory

Ecological modeling based on benthic foraminifera from Tupilipalem coast, southeast coast of India: Implications for ecological trajectory

Marine Micropalaeontology: An overview on Indian contributions during 2016-2019

The Occurrence and Distribution of Benthic Foraminifera in Tropical Waters Along the Strait of Malacca

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