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Article

Diversity, Distribution, and Habitat Occurrence of the Diaptomid Copepods (Crustacea: Copepoda: Diaptomidae) in Freshwater Ecosystems of Thailand

1
Applied Taxonomic Research Center, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
2
Department of Biodiversity and Environmental Management, International College, Khon Kaen University, Khon Kaen 40002, Thailand
*
Author to whom correspondence should be addressed.
Academic Editors: Kay Van Damme and Alexey A. Kotov
Water 2021, 13(17), 2381; https://doi.org/10.3390/w13172381
Received: 13 July 2021 / Revised: 18 August 2021 / Accepted: 23 August 2021 / Published: 30 August 2021
(This article belongs to the Special Issue Species Richness and Diversity of Aquatic Ecosystems)
The diversity, distribution, and checklist of diaptomid copepods from various freshwater ecosystems throughout Thailand are presented, based on data from our biodiversity projects during 1993–2019 and literature reviews. Thailand has one of the most diversified diaptomid fauna in the world, with 42 species identified from 2150 localities (4962 samples). Mongolodiaptomus has the highest species richness with ten species, followed by Tropodiaptomus with seven species. Among these, eight taxa (Arctodiaptomus sp., Mongolodiaptomus pectinidactylus, Neodiaptomus meggitti, Tropodiaptomus hebereri, T. lanaonus, T. oryzanus, T. ruttneri, and Paradiaptomus greeni) are new to the fauna of Thailand. The rare P. greeni, which predominantly occurs in Africa, is also a new record for Southeast Asia. The most frequently encountered species were Mongolodiaptomus botulifer, Phyllodiaptomus praedictus, M. calcarus, M. dumonti, M. malaindosinensis, Vietodiaptomus blachei, Phyllodiaptomus christineae, Eodiaptomus sanoamuangae, Neodiaptomus yangtsekiangensis, E. draconisignivomi, T. vicinus, and Heliodiaptomus elegans. Twelve species appear to be endemic to Thailand, and eight species occur only in the countries belonging to the lower Mekong River Basin (Thailand, Cambodia, Laos, and Vietnam). The uniqueness of the Thai diaptomids is a high degree of co-occurrence of four to seven species in the same localities. Comments on the taxonomic status of the species recorded are provided. In addition, the taxonomic validity of Mongolodiaptomus malaindosinensis is discussed. View Full-Text
Keywords: Arctodiaptomus sp.; biodiversity; Calanoida; lower Mekong River Basin; Mongolodiaptomus malaindosinensis; Paradiaptomus greeni; Southeast Asia Arctodiaptomus sp.; biodiversity; Calanoida; lower Mekong River Basin; Mongolodiaptomus malaindosinensis; Paradiaptomus greeni; Southeast Asia
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MDPI and ACS Style

Sanoamuang, L.; Dabseepai, P. Diversity, Distribution, and Habitat Occurrence of the Diaptomid Copepods (Crustacea: Copepoda: Diaptomidae) in Freshwater Ecosystems of Thailand. Water 2021, 13, 2381. https://doi.org/10.3390/w13172381

AMA Style

Sanoamuang L, Dabseepai P. Diversity, Distribution, and Habitat Occurrence of the Diaptomid Copepods (Crustacea: Copepoda: Diaptomidae) in Freshwater Ecosystems of Thailand. Water. 2021; 13(17):2381. https://doi.org/10.3390/w13172381

Chicago/Turabian Style

Sanoamuang, Laorsri, and Prapatsorn Dabseepai. 2021. "Diversity, Distribution, and Habitat Occurrence of the Diaptomid Copepods (Crustacea: Copepoda: Diaptomidae) in Freshwater Ecosystems of Thailand" Water 13, no. 17: 2381. https://doi.org/10.3390/w13172381

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