Academic Journal
Impact of submarine groundwater discharge on meiofaunal nematode community structure along the southwest coast of India.
| Τίτλος: | Impact of submarine groundwater discharge on meiofaunal nematode community structure along the southwest coast of India. |
|---|---|
| Συγγραφείς: | Vishnudattan N; Department of Marine Biology, Microbiology & Biochemistry, School of Marine Sciences, Cochin University of Science & Technology, Fine Arts Avenue, Cochin, Kerala, 682016, India; Biological Oceanography Division, CSIR-National Institute of Oceanography, Dona Paula, Goa, 403004, India. Electronic address: vishnudattannk@gmail.com., Jayachandran PR; Applied Research Center for Environment and Marine Studies (ARC-EMS), Research Institute, King Fahd University of Petroleum & Minerals (KFUPM), Dhahran, 31261, Saudi Arabia. Electronic address: jayachandran2701@gmail.com., Nandan SB; Department of Marine Biology, Microbiology & Biochemistry, School of Marine Sciences, Cochin University of Science & Technology, Fine Arts Avenue, Cochin, Kerala, 682016, India. Electronic address: bijoynandan@yahoo.co.in., Aravind EH; Department of Marine Biology, Microbiology & Biochemistry, School of Marine Sciences, Cochin University of Science & Technology, Fine Arts Avenue, Cochin, Kerala, 682016, India. Electronic address: aravindeh@gmail.com., Suresh Babu DS; National Centre for Earth Sciences Studies, Akkulam, Thiruvananthapuram, Kerala, 695031, India. Electronic address: dss.babu@ncess.gov.in. |
| Πηγή: | Marine environmental research [Mar Environ Res] 2026 Aug; Vol. 220, pp. 108155. Date of Electronic Publication: 2026 May 25. |
| Τύπος έκδοσης: | Journal Article |
| Γλώσσα: | English |
| Στοιχεία περιοδικού: | Publisher: Elsevier Country of Publication: England NLM ID: 9882895 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-0291 (Electronic) Linking ISSN: 01411136 NLM ISO Abbreviation: Mar Environ Res Subsets: MEDLINE |
| Imprint Name(s): | Publication: Apr. <2000- >: Kidlington, Oxford : Elsevier Original Publication: London : Applied Science Publishers, [c1978- |
| Ιατρικοί όροι (MeSH): | Nematoda*/physiology , Groundwater* , Environmental Monitoring* , Biodiversity*, Animals ; India ; Ecosystem ; Seashore ; Biomass |
| Περίληψη: | Submarine groundwater discharge (SGD) is a vital yet understudied driver of ecological change in coastal ecosystems, particularly in relation to sediment dwelling meiofaunal communities. This study investigates the impact of SGD on the richness, density, biomass, structural and functional diversity of free-living meiofaunal nematodes along the southwest coast of India. Field sampling was conducted across fifteen locations, including 11 SGD impacted and 4 unimpacted sites during three seasonal cycles for two years. Results showed significantly reduced nematode taxa richness, density, and biomass at SGD impacted sites compared to unimpacted sites, highlighting remarkable difference in community structure. The Co-occurrence network analysis revealed fragmented species interactions in SGD sites, in contrast to the denser and more stable networks at unimpacted sites. RLQ analysis demonstrated that SGD significantly structures nematode communities through environmental gradients, particularly salinity, dissolved oxygen, and grain size, shaping distinct trait associations. Finally, these findings underscore the importance of nematodes as sensitive ecological indicators and highlight the structuring role of SGD on coastal benthos. (Copyright © 2026 Elsevier Ltd. All rights reserved.) |
| Competing Interests: | Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. |
| Contributed Indexing: | Keywords: Benthic ecology; Co-occurrence network; Environmental monitoring; Functional diversity; RLQ analysis; Submarine groundwater discharge |
| Entry Date(s): | Date Created: 20260527 Date Completed: 20260729 Latest Revision: 20260729 |
| Update Code: | 20260730 |
| DOI: | 10.1016/j.marenvres.2026.108155 |
| PMID: | 42202598 |
| Βάση Δεδομένων: | MEDLINE |
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