New data on the Echinoderes coulli-group (Kinorhyncha: Cyclorhagida: Echinoderidae): A new species from New Caledonia mangroves, and a redescription of E. bengalensis (Timm, 1958)

Sørensen, Martin V.

doi:10.1016/j.jcz.2022.11.009

Cited by 5 publications

(1 citation statement)

References 17 publications

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“…In addition, low abundant taxa have shown to be useful when characterizing meiofaunal assemblages in certain areas or when assessing meiofauna sensitivity to pollutants (Vanreusel, 1990;Giere, 2009;Sevastou et al, 2013;Sańchez and Goḿez-Leoń, 2024). Currently, 42 species of Kinorhyncha are known to inhabit mangroves (Cepeda et al, 2022a, b;Sørensen, 2023). Some of these species belong to the Echinoderes coulli-group, characterized by an enlarged nephridial sieve plate likely related to cope with fluctuating salinities, tolerating both brackish and hypersaline conditions (Ostmann et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Environmental drivers modelling the mangrove Kinorhyncha community along an urban-to-natural gradient in French Guiana (western Atlantic Ocean)

Cepeda,

Sánchez,

Spedicato

et al. 2024

Front. Mar. Sci.

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Meiofaunal communities are dominated by free-living nematodes and harpacticoid copepods. Most of the studies defining the environmental drivers that influence meiofauna focus on these profuse groups. The ‘rare’ meiofaunal organisms (densities <5%) are frequently overlooked, making it difficult to know which abiotic variables influence their populations, or their ecological role in the benthic ecosystems. In this study, we explore the ecological factors that characterize a low human-polluted mangrove in French Guiana (western Atlantic Ocean) along an urban-to-natural gradient, focusing on the ‘rare’ phylum Kinorhyncha. This taxon seems to be mainly influenced by sediment size, being more abundant in silty sediments. The presence of microorganisms also enhances the community, likely due to a higher food availability. Oppositely, some trace metals of both lithogenic and anthropogenic origin, as well as predominance of coarser sediment particles, seem to negatively affect their populations. The importance of including the lesser abundant groups of meiofauna in ecological studies is evident, since it allows to have a better idea of the ecological state of marine benthic environments.

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