A highly diverse living benthic foraminiferal assemblage in the oxygen deficient zone of the southeastern Arabian Sea

Kaithwar, Amrata; Singh, D. K.; Saraswat, Rajeev

doi:10.1007/s10531-020-02056-9

Cited by 10 publications

(3 citation statements)

References 75 publications

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“…4). Like N. turgida, B. exilis is also an oxygen-tolerant species (Kaithwar et al, 2020). This species is found abundant during the early TV but nearly disappear during the late TV, which may be attributed to the forms of organic matter reaching the seafloor.…”

Section: J O U R N a L P R E -P R O O Fmentioning

confidence: 97%

“…6c; Table 2, Table 3). B. exilis is found highly abundant in the upper part of the oxygen deficient zone of the southeastern Arabian Sea (Kaithwar et al, 2020), and prefers organic matter in an unaltered form (Caralp, 1989). N. turgida is typical of environments where organic matter accumulates and periodical oxygen deficiency occurs (Van der Zwaan and Jorissen, 1991;Van der Zwaan et al, 1999).…”

Section: J O U R N a L P R E -P R O O Fmentioning

confidence: 99%

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Intermediate water variability of the subtropical Northeastern Atlantic during 490–424 ka (late MIS 13 and MIS 12)

Guo

2022

Marine Geology

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Section: J O U R N a L P R E -P R O O Fmentioning

confidence: 97%

Section: J O U R N a L P R E -P R O O Fmentioning

confidence: 99%

Intermediate water variability of the subtropical Northeastern Atlantic during 490–424 ka (late MIS 13 and MIS 12)

Guo

2022

Marine Geology

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“…Foraminifera play a largely unquantified but potentially significant role in carbon cycling (Gooday et al, 1992; Kurbjeweit et al, 2000). Their abundance and diversity are strongly influenced by the ambient conditions, including the temperature, salinity, sediment texture, food availability and oxygen (e.g., Jorissen, 1995; Jorissen et al, 2007; Kaithwar et al, 2020; Kurbjeweit et al, 2000; Kurtarkar et al, 2019; Langlet et al, 2020; Lei et al, 2017; 2019; Stewart et al, 2021; Venturelli et al, 2018). The vertical distribution of benthic foraminifera is also affected by oxygen, except for some deep infaunal species (Ernst & van der Zwaan, 2004).…”

Section: Introductionmentioning

confidence: 99%

Response of inner shelf benthic foraminiferal community to different concentrations of dissolved oxygen under laboratory culture experiment

Kurtarkar,

Kaithwar,

Saraswat

2024

Journal of the Palaeontological Society of India

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Dissolved oxygen, a vital parameter for a majority of marine organisms, may decline in the near future due to anthropogenic eutrophication in coastal waters. The effect of depleting dissolved oxygen on the marine benthic community is difficult to assess from field studies, as dissolved oxygen often co-varies with several other parameters, especially organic matter. The controlled laboratory culture experiments can help to assess the effect of a specific parameter on marine organisms. Foraminifera constitute a substantial fraction of the marine benthic organisms, and a few species are vulnerable to depleted oxygen. A majority of the previous culture experiments have used isolated specimens of individual benthic foraminiferal species. Although such studies helped to understand the response of individual species to a particular parameter, they have to be scaled up to understand the community-level response of benthic foraminifera. Here, we assess the community-level response of the shallow subtidal benthic foraminiferal community to five different oxygen concentrations (1.67 mL/L to 5.01 mL/L) in a laboratory culture experiment. The living benthic foraminiferal abundance was considerably high at the intermediate oxygen concentration, whereas it decreased at both the lower and higher concentrations. The decreasing dissolved oxygen caused poor preservation of dead benthic foraminifera due to a drop in pH. The relative abundance trend of the species belonging to the same genus was different, suggesting a species-specific response to the dissolved oxygen. The maximum abundance at 2.91 mL/L and the varying response of individual species clearly suggest a non-linear response of the benthic foraminiferal community to the dissolved oxygen.

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Distinct environmental parameters influence the abundance of living benthic foraminifera morphogroups in the southeastern Arabian Sea

Singh

Saraswat

Pawar

2022

Environ Sci Pollut Res

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A highly diverse living benthic foraminiferal assemblage in the oxygen deficient zone of the southeastern Arabian Sea

Cited by 10 publications

References 75 publications

Intermediate water variability of the subtropical Northeastern Atlantic during 490–424 ka (late MIS 13 and MIS 12)

Intermediate water variability of the subtropical Northeastern Atlantic during 490–424 ka (late MIS 13 and MIS 12)

Response of inner shelf benthic foraminiferal community to different concentrations of dissolved oxygen under laboratory culture experiment

Distinct environmental parameters influence the abundance of living benthic foraminifera morphogroups in the southeastern Arabian Sea

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