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Caridina

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Caridina is a genus of freshwater atyid shrimp. They are widely found in tropical or subtropical water in Asia, Oceania and Africa. They are filter-feeders and omnivorous scavengers. They range from 0.9 to 9.8 mm (C. cantonensis) to 1.2–7.4 mm (C. serrata) in carapace length.

Caridina
Caridina multidentata
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Malacostraca
Order: Decapoda
Suborder: Pleocyemata
Infraorder: Caridea
Family: Atyidae
Genus: Caridina
H. Milne-Edwards, 1837[1]
Species

Around 340,[2] see text

Taxonomy and species

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Caridina serratirostris, a widespread freshwater species from the Indo-Pacific region
 
Caridina dennerli, one of several species restricted to the Indonesian island of Sulawesi
 
Caridina cantonensis is widely kept in aquariums and several color forms have been achieved through selective breeding

There is evidence for hybridization between sympatric taxa, requiring care when interpreting molecular phylogenetic analyses that do not use a large number of specimens.[3]

As of March 2022, the Integrated Taxonomic Information System lists the genus Caridina as having 340 species.[4] These include the following species:[5][6][7][8][9]

A number of phylogenetic studies have questioned the monophyly of Caridina.[12]

Threats and Conservation

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As of March 2023, the IUCN Red List lists 56 Caridina species as threatened, with 18 listed as critically endangered, 5 listed as endangered, and 33 listed as vulnerable.[13] Of these, two (Caridina apodosis and Caridina yilong) are listed as possibly extinct and one (Caridina dennerli) is listed as possibly extinct in the wild.

References

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  1. ^ Milne Edwards, Henri (1837). "Genre CARIDINE. — Caridina". Histoire naturelle des crustacés. Vol. 2. Paris: Libraire encyclopédique de Roret. pp. 362–363.
  2. ^ "Caridina". Integrated Taxonomic Information System. Retrieved 9 March 2023.
  3. ^ Kristina von Rintelen, Thomas von Rintelen & Matthias Glaubrecht (2007). "Molecular phylogeny and diversification of freshwater shrimps (Decapoda, Atyidae, Caridina) from ancient Lake Poso (Sulawesi, Indonesia) – the importance of being colourful" (PDF). Molecular Phylogenetics and Evolution. 45 (3): 1033–1041. doi:10.1016/j.ympev.2007.07.002. PMID 17702608.
  4. ^ "Caridina". Integrated Taxonomic Information System. Retrieved 9 March 2023.
  5. ^ Charles Fransen (2011). "Caridina H. Milne Edwards, 1837 [in H. Milne Edwards, 1834-1840]". WoRMS. World Register of Marine Species. Retrieved December 8, 2011.
  6. ^ Xu, Da-Jian; Li, Deng-Xu; Zheng, Xiao-Zhuang; Guo, Zhao-Liang (2020-12-31). "Caridina sinanensis, a new species of stygobiotic atyid shrimp (Decapoda, Caridea, Atyidae) from a karst cave in the Guizhou Province, southwestern China". ZooKeys (1008): 17–35. doi:10.3897/zookeys.1008.54190. ISSN 1313-2970. PMC 7790810. PMID 33505186.
  7. ^ Klotz, Werner, et al. "Lake Poso's shrimp fauna revisited: the description of five new species of the genus Caridina (Crustacea, Decapoda, Atyidae) more than doubles the number of endemic lacustrine species." ZooKeys 1009 (2021): 81.
  8. ^ de Mazancourt, Valentin; Boseto, David; Marquet, Gerard; Keith, Philippe (2020). "Solomon's Gold Mine: Description or redescription of 24 species of Caridina (Crustacea: Decapoda: Atyidae) freshwater shrimps from the Solomon Islands, including 11 new species". European Journal of Taxonomy (696). doi:10.5852/ejt.2020.696. S2CID 225426844.
  9. ^ Klotz, Werner; Von Rintelen, Kristina (2013). "Three new species of Caridina (Decapoda: Atyidae) from Central Sulawesi and Buton Island, Indonesia, and a checklist of the islands' endemic species". Zootaxa. 3664 (4): 554–570. doi:10.11646/zootaxa.3664.4.8. PMID 26266319. Retrieved 28 Feb 2022.
  10. ^ Milne Edwards, Henri (1837). "Caridine longirostre. — C. longirostris". Histoire naturelle des crustacés. Vol. 2. Paris: Libraire encyclopédique de Roret. p. 363.
  11. ^ Milne Edwards, Henri (1837). "Caridine type. — C. typus". Histoire naturelle des crustacés. Vol. 2. Paris: Libraire encyclopédique de Roret. p. 363.
  12. ^ von Rintelen, Kristina; Page, Timothy J.; Cai, Yixiong; Roe, Kevin; Stelbrink, Björn; Kuhajda, Bernard R.; Iliffe, Thomas M.; Hughes, Jane; von Rintelen, Thomas (2012). "Drawn to the dark side: A molecular phylogeny of freshwater shrimps (Crustacea: Decapoda: Caridea: Atyidae) reveals frequent cave invasions and challenges current taxonomic hypotheses". Molecular Phylogenetics and Evolution. 63 (1): 82–96. doi:10.1016/j.ympev.2011.12.015. PMID 22209861. Retrieved 9 March 2023.
  13. ^ "IUCN Red List Advanced Search". www.iucnredlist.org. IUCN. Retrieved 3 March 2023.
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