Caridina Explained

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.

Taxonomy and species

There is evidence for hybridization between sympatric taxa, requiring care when interpreting molecular phylogenetic analyses that do not use a large number of specimens.[1]

As of March 2022, the Integrated Taxonomic Information System lists the genus Caridina as having 340 species. These include the following species:[2] [3] [4] [5] [6]

A number of phylogenetic studies have questioned the monophyly of Caridina.[9]

Threats and Conservation

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.[10] 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.

External links

Notes and References

  1. 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 . . 45 . 3 . 1033–1041 . 10.1016/j.ympev.2007.07.002 . 17702608 .
  2. Charles Fransen . 2011 . Caridina H. Milne Edwards, 1837 [in H. Milne Edwards, 1834-1840] . 240672 . December 8, 2011.
  3. 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. en. 1008. 17–35. 10.3897/zookeys.1008.54190. 33505186. 7790810. 1313-2970. free.
  4. 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.
  5. 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. 10.5852/ejt.2020.696. 225426844. en. free.
  6. 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. en. 3664. 4. 554–570. 10.11646/zootaxa.3664.4.8. 26266319. 28 Feb 2022.
  7. Book: Milne Edwards. Henri. Histoire naturelle des crustacés. 1837. Libraire encyclopédique de Roret. Paris. 2. 363. Caridine longirostre. — C. longirostris. https://www.biodiversitylibrary.org/page/5554411.
  8. Book: Milne Edwards. Henri. Histoire naturelle des crustacés. 1837. Libraire encyclopédique de Roret. Paris. 2. 363. Caridine type. — C. typus. https://www.biodiversitylibrary.org/page/5554411.
  9. 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. 10.1016/j.ympev.2011.12.015. 22209861. en. 9 March 2023.
  10. Web site: IUCN Red List Advanced Search. www.iucnredlist.org. IUCN. 3 March 2023.