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Volume 130 All articles Published: 17 July 2021 Article ID 0138 Research article
P P KRISHNAPRIYA N K ASWATHY M M DHANYA M JIMA P R JAYACHANDRAN S BIJOY NANDAN M HARIKRISHNAN K P KRISHNAN
The proportion of blue carbon contribution by benthic fauna with regard to climate change issue is a relevant topic recent times. The present study is focusing on the carbon potential and blue carbon contribution of meiobenthic nematodes in the intermediate zone of Arctic Kongsfjord during 2015–2017 and the study is the first of its kind from this region. Foraminifera and Nematoda were the dominant fauna in 2015; whereas it was Foraminifera in 2016 and Tintinnida and Nematoda in 2017. Significant difference was noticed in the community structure of meiofauna in this three consecutive years. Twenty six nematodes were identified from the intermediate zone and their individual carbon potential and total blue carbon during the above-mentioned period is estimated.
Parasphaerolaimus paradoxus (7.14 $\pm$ 0.05 $\mu$g/mg) recorded the highest carbon potential and the lowest value was recorded inTerschellingia longicaudata (0.11 $\pm$ 0.3 $\mu$g/mg). The sediment factors such as sediment granulometric composition, salinity, pH, Eh and total organic carbon (TOC) were the leading factors influencing the meiofaunal distribution as well as the distribution of nematodes based on carbon potential in the intermediate zone. Investigation of blue carbon deposition by nematodes turned out to be relevant in mitigating the climatic change as the fjord has a tranquil nature.
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Journal of Earth System Science
Volume 132, 2023
All articles
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