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A new species of Gammarus (Crustacea, Amphipoda, Gammaridae) from South Korea

A new species of freshwater gammarid, Gammarussomaemulensissp. nov., was collected from Somaemuldo Island, South Korea. This new species is morphologically characterised by the absence of calceoli in antenna 2, absence of anteroproximal setae on bases in pereopods 6 and 7, outer ramus in uropod 3 wi...

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Autores principales: Ahn, Yong-Uk, Lee, Chi-Woo, Min, Gi-Sik
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Pensoft Publishers 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9848722/
https://www.ncbi.nlm.nih.gov/pubmed/36761380
http://dx.doi.org/10.3897/zookeys.1117.89610
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author Ahn, Yong-Uk
Lee, Chi-Woo
Min, Gi-Sik
author_facet Ahn, Yong-Uk
Lee, Chi-Woo
Min, Gi-Sik
author_sort Ahn, Yong-Uk
collection PubMed
description A new species of freshwater gammarid, Gammarussomaemulensissp. nov., was collected from Somaemuldo Island, South Korea. This new species is morphologically characterised by the absence of calceoli in antenna 2, absence of anteroproximal setae on bases in pereopods 6 and 7, outer ramus in uropod 3 with plumose setae on both margins, and a small terminal article of the outer ramus, which is shorter than adjacent spines. A description of the new species and morphological differences from related species are provided in the text. The new species was also compared to related species using partial sequences of the mitochondrial cytochrome c oxidase subunit I (COI) gene. Genetic distances of COI sequences between the new species and related species, consisting of 21.5–26.3% difference, support Gammarussomaemulensissp. nov. as a valid species. Additionally, a key to identifying Gammarus species in South Korea is provided.
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spelling pubmed-98487222023-02-08 A new species of Gammarus (Crustacea, Amphipoda, Gammaridae) from South Korea Ahn, Yong-Uk Lee, Chi-Woo Min, Gi-Sik Zookeys Research Article A new species of freshwater gammarid, Gammarussomaemulensissp. nov., was collected from Somaemuldo Island, South Korea. This new species is morphologically characterised by the absence of calceoli in antenna 2, absence of anteroproximal setae on bases in pereopods 6 and 7, outer ramus in uropod 3 with plumose setae on both margins, and a small terminal article of the outer ramus, which is shorter than adjacent spines. A description of the new species and morphological differences from related species are provided in the text. The new species was also compared to related species using partial sequences of the mitochondrial cytochrome c oxidase subunit I (COI) gene. Genetic distances of COI sequences between the new species and related species, consisting of 21.5–26.3% difference, support Gammarussomaemulensissp. nov. as a valid species. Additionally, a key to identifying Gammarus species in South Korea is provided. Pensoft Publishers 2022-08-11 /pmc/articles/PMC9848722/ /pubmed/36761380 http://dx.doi.org/10.3897/zookeys.1117.89610 Text en Yong-Uk Ahn, Chi-Woo Lee, Gi-Sik Min https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Ahn, Yong-Uk
Lee, Chi-Woo
Min, Gi-Sik
A new species of Gammarus (Crustacea, Amphipoda, Gammaridae) from South Korea
title A new species of Gammarus (Crustacea, Amphipoda, Gammaridae) from South Korea
title_full A new species of Gammarus (Crustacea, Amphipoda, Gammaridae) from South Korea
title_fullStr A new species of Gammarus (Crustacea, Amphipoda, Gammaridae) from South Korea
title_full_unstemmed A new species of Gammarus (Crustacea, Amphipoda, Gammaridae) from South Korea
title_short A new species of Gammarus (Crustacea, Amphipoda, Gammaridae) from South Korea
title_sort a new species of gammarus (crustacea, amphipoda, gammaridae) from south korea
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9848722/
https://www.ncbi.nlm.nih.gov/pubmed/36761380
http://dx.doi.org/10.3897/zookeys.1117.89610
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