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<p>Meiofauna play essential roles in matter cycling and energy transmission, making them vital to the mangrove environment. In September 2022, sediment and water samples were collected from the bay and creek zones of the Coringa mangroves. We investigated the benthic meiofaunal assemblages and diversity concerning the environmental variables from mangroves. Seven meiofaunal groups including free-living nematodes, benthic harpacticoid copepods, polychaetes, ostracods, kinorhyncha, foraminifera, and amphipods were reported. The meiofauna abundance ranged between 734 ± 75 and 5 741 ± 224 individuals per 10 cm<sup>2</sup> [ind./(10 cm<sup>2</sup>)]. Although, nematodes are indicators that measure the ecological state of mangroves on the basis of a range of pressures. Nematoda dominated the creek zone of the mangrove, whereas harpacticoids dominated the bay zone. Eighteen genera from 12 families, including the most prevalent Xyalidae, Desmodoridae, and Linhomoeidae, represented nematodes. The taxa <i>Monhystera paludicola</i>, <i>Daptonema orientale</i>, and <i>Terschellingia longicaudata</i> were prevalent in the silt-dominated zones of mangroves. Several pollution indicator nematode species, including <i>M. paludicola</i>, <i>Sabatieria punctata</i>, and <i>D. orientale</i>, have also been found in the bay zone. In terms of the nematode feeding guilds, epigrowth feeders were dominant, followed by nonselective deposit feeders. Variations in salinity, organic carbon, and sediment texture have a direct impact on the distribution and abundance of meiobenthic organisms, indicating a strong ecological link between habitat conditions and organismal responses. The results highlight the need for more studies on the distribution of meiofauna and their contributions to ecosystem services while offering insights into the dynamics of meiofauna in the Coringa mangrove.</p>

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Meiofaunal distribution patterns and trophic structure in response to abiotic conditions in Coringa mangroves on the east coast of India

  • 期刊论文

  • 发表日期：

    2026年7月14日

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  • R. S. Pandiya rajan,
  • Uma Sankar Panda,
  • P. Ezhilarasan,
  • M. V. Ramanamurthy

摘要

Meiofauna play essential roles in matter cycling and energy transmission, making them vital to the mangrove environment. In September 2022, sediment and water samples were collected from the bay and creek zones of the Coringa mangroves. We investigated the benthic meiofaunal assemblages and diversity concerning the environmental variables from mangroves. Seven meiofaunal groups including free-living nematodes, benthic harpacticoid copepods, polychaetes, ostracods, kinorhyncha, foraminifera, and amphipods were reported. The meiofauna abundance ranged between 734 ± 75 and 5 741 ± 224 individuals per 10 cm2 [ind./(10 cm2)]. Although, nematodes are indicators that measure the ecological state of mangroves on the basis of a range of pressures. Nematoda dominated the creek zone of the mangrove, whereas harpacticoids dominated the bay zone. Eighteen genera from 12 families, including the most prevalent Xyalidae, Desmodoridae, and Linhomoeidae, represented nematodes. The taxa Monhystera paludicola, Daptonema orientale, and Terschellingia longicaudata were prevalent in the silt-dominated zones of mangroves. Several pollution indicator nematode species, including M. paludicola, Sabatieria punctata, and D. orientale, have also been found in the bay zone. In terms of the nematode feeding guilds, epigrowth feeders were dominant, followed by nonselective deposit feeders. Variations in salinity, organic carbon, and sediment texture have a direct impact on the distribution and abundance of meiobenthic organisms, indicating a strong ecological link between habitat conditions and organismal responses. The results highlight the need for more studies on the distribution of meiofauna and their contributions to ecosystem services while offering insights into the dynamics of meiofauna in the Coringa mangrove.