Distribution and Diversity of Diaptomid Copepods in Freshwater Habitats of Cambodia (Crustacea: Copepoda: Calanoida: Diaptomidae)
Freshwater diaptomid copepods in Cambodia are poorly studied, and only seven taxa were known previously. From February to October 2007, 255 samples were collected from 237 freshwater sites in nine provinces representing four regions (northwest, Cardamom and Elephant Mountains, Mekong Lowlands, and e...
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MDPI AG
2022-10-01
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| Series: | Diversity |
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| Online Access: | https://www.mdpi.com/1424-2818/14/11/903 |
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| author | Rachada Chaicharoen Laorsri Sanoamuang |
| author_facet | Rachada Chaicharoen Laorsri Sanoamuang |
| author_sort | Rachada Chaicharoen |
| collection | DOAJ |
| description | Freshwater diaptomid copepods in Cambodia are poorly studied, and only seven taxa were known previously. From February to October 2007, 255 samples were collected from 237 freshwater sites in nine provinces representing four regions (northwest, Cardamom and Elephant Mountains, Mekong Lowlands, and east) of Cambodia. Diversity, seasonal occurrence, geographical distribution of each species, and a checklist of diaptomid copepods are documented. In this case, 24 species were recorded, including two undescribed species belonging to the genera <i>Phyllodiaptomus</i> and <i>Tropodiaptomus</i>. In this case, 14 species are recorded for the first time in Cambodia, and <i>Mongolodiaptomus formosanus</i> has been recorded for the first time in Southeast Asia. One species appears to be endemic to Cambodia and nine to the lower Mekong River Basin. <i>Mongolodiaptomus malaindosinensis</i> was the most common, frequently recorded throughout the four regions (40.5% of the sampled sites), followed by <i>Vietodiaptomus blachei</i> (39.2%), <i>Eodiaptomus phuvongi</i> (38.8%), <i>Mongolodiaptomus formosanus</i> (31.2%), and <i>Eodiaptomus draconisignivomi</i> (27.4%). Very rare species such as <i>Eodiaptomus sanoamuangae</i>, <i>Tropodiaptomus vicinus</i>, <i>Mongolodiaptomus calcarus</i>, and <i>Tropodiaptomus</i> sp. were only recorded at 0.4% to 0.8% of the sampled sites. The species diversity of Cambodia is most similar to that of Thailand, where 22 species (91.6%) occur both in Cambodia and Thailand, and 12 (50%) of the species have been recorded in both Cambodia and Vietnam. |
| first_indexed | 2024-03-09T19:09:21Z |
| format | Article |
| id | doaj.art-62ba9c9ed2724ecba612aec6ac38b4a2 |
| institution | Directory Open Access Journal |
| issn | 1424-2818 |
| language | English |
| last_indexed | 2024-03-09T19:09:21Z |
| publishDate | 2022-10-01 |
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| series | Diversity |
| spelling | doaj.art-62ba9c9ed2724ecba612aec6ac38b4a22023-11-24T04:20:37ZengMDPI AGDiversity1424-28182022-10-01141190310.3390/d14110903Distribution and Diversity of Diaptomid Copepods in Freshwater Habitats of Cambodia (Crustacea: Copepoda: Calanoida: Diaptomidae)Rachada Chaicharoen0Laorsri Sanoamuang1Department of Science and Mathematics, Faculty of Science and Technology, Rajamangala University of Technology Tawan-ok, Si Racha 20110, ThailandInternational College, Khon Kaen University, Khon Kaen 40002, ThailandFreshwater diaptomid copepods in Cambodia are poorly studied, and only seven taxa were known previously. From February to October 2007, 255 samples were collected from 237 freshwater sites in nine provinces representing four regions (northwest, Cardamom and Elephant Mountains, Mekong Lowlands, and east) of Cambodia. Diversity, seasonal occurrence, geographical distribution of each species, and a checklist of diaptomid copepods are documented. In this case, 24 species were recorded, including two undescribed species belonging to the genera <i>Phyllodiaptomus</i> and <i>Tropodiaptomus</i>. In this case, 14 species are recorded for the first time in Cambodia, and <i>Mongolodiaptomus formosanus</i> has been recorded for the first time in Southeast Asia. One species appears to be endemic to Cambodia and nine to the lower Mekong River Basin. <i>Mongolodiaptomus malaindosinensis</i> was the most common, frequently recorded throughout the four regions (40.5% of the sampled sites), followed by <i>Vietodiaptomus blachei</i> (39.2%), <i>Eodiaptomus phuvongi</i> (38.8%), <i>Mongolodiaptomus formosanus</i> (31.2%), and <i>Eodiaptomus draconisignivomi</i> (27.4%). Very rare species such as <i>Eodiaptomus sanoamuangae</i>, <i>Tropodiaptomus vicinus</i>, <i>Mongolodiaptomus calcarus</i>, and <i>Tropodiaptomus</i> sp. were only recorded at 0.4% to 0.8% of the sampled sites. The species diversity of Cambodia is most similar to that of Thailand, where 22 species (91.6%) occur both in Cambodia and Thailand, and 12 (50%) of the species have been recorded in both Cambodia and Vietnam.https://www.mdpi.com/1424-2818/14/11/903Mekong River<i>Mongolodiaptomus formosanus</i><i>Phyllodiaptomus (P.)</i> sp.Southeast AsiaTonlé Sap<i>Tropodiaptomus</i> sp. |
| spellingShingle | Rachada Chaicharoen Laorsri Sanoamuang Distribution and Diversity of Diaptomid Copepods in Freshwater Habitats of Cambodia (Crustacea: Copepoda: Calanoida: Diaptomidae) Diversity Mekong River <i>Mongolodiaptomus formosanus</i> <i>Phyllodiaptomus (P.)</i> sp. Southeast Asia Tonlé Sap <i>Tropodiaptomus</i> sp. |
| title | Distribution and Diversity of Diaptomid Copepods in Freshwater Habitats of Cambodia (Crustacea: Copepoda: Calanoida: Diaptomidae) |
| title_full | Distribution and Diversity of Diaptomid Copepods in Freshwater Habitats of Cambodia (Crustacea: Copepoda: Calanoida: Diaptomidae) |
| title_fullStr | Distribution and Diversity of Diaptomid Copepods in Freshwater Habitats of Cambodia (Crustacea: Copepoda: Calanoida: Diaptomidae) |
| title_full_unstemmed | Distribution and Diversity of Diaptomid Copepods in Freshwater Habitats of Cambodia (Crustacea: Copepoda: Calanoida: Diaptomidae) |
| title_short | Distribution and Diversity of Diaptomid Copepods in Freshwater Habitats of Cambodia (Crustacea: Copepoda: Calanoida: Diaptomidae) |
| title_sort | distribution and diversity of diaptomid copepods in freshwater habitats of cambodia crustacea copepoda calanoida diaptomidae |
| topic | Mekong River <i>Mongolodiaptomus formosanus</i> <i>Phyllodiaptomus (P.)</i> sp. Southeast Asia Tonlé Sap <i>Tropodiaptomus</i> sp. |
| url | https://www.mdpi.com/1424-2818/14/11/903 |
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