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Preliminary studies of the tardigrada communities from a polymetallic nodule area of the deep South China Sea
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Orientador(es)
Resumo(s)
Knowledge about marine tardigrades from the South China Sea is very scarce, with
only four species from shallow waters recorded to date. The present study
investigated the structure and diversity of tardigrade communities from the deep
sea (1517-1725 m) at 8 stations in a polymetallic nodule area of the northern South
China Sea. A total of 151 arthrotardigrades were collected belonging to 11 genera
(Angursa, Batillipes, Coronarctus, Euclavarctus, Exoclavarctus, Halechiniscus,
Moebjergarctus, Raiarctus, Rhomboarctus, Tanarctus and Tholoarctus),
representing 17 species. Two Angursa species (Angursa sp. 4 and Angursa sp. 3)
were the most abundant (25.2% and 14.6%, respectively), followed by
Moebjergarctus sp. (13.9%). Specimens were mostly (90.7%) distributed in the
upper layer of the sandy-mud sediment (0-1 cm). The SIMPROF test showed that
the composition of tardigrade communities at all stations was not significantly
different. At different stations, the number of species, Shannon-Wiener diversity
index and Pielou’s evenness index ranged from 4 to 10, 1.94 to 2.87, and 0.75 to 1.00,
respectively. The average taxonomic distinctness (D+) ranged from 72.50 to 90.00,
and the variation in taxonomic distinctness (L+) ranged from 316.67 to 1181.25. This
study provides some basic information about the biodiversity of the marine
tardigrade community in the South China Sea.
Descrição
Palavras-chave
Marine tardigrades Heterotardigrada Meiofauna Diversity indexes Deep sea South China Sea
Contexto Educativo
Citação
Wang, X., Bai, L., Wang, C., Lu, B., Li, Y., Lin, Q., Huang, X., & Fontoura, P. (2023). Preliminary studies of the tardigrada communities from a polymetallic nodule area of the deep South China Sea. Frontiers in Marine Science, 10. https://doi.org/10.3389/fmars.2023.1110841
Editora
Frontiers Media SA