| Callorhinchus callorynchus | |
|---|---|
| |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Subclass: | Holocephali |
| Order: | Chimaeriformes |
| Family: | Callorhinchidae |
| Genus: | Callorhinchus |
| Species: | C. callorynchus
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| Binomial name | |
| Callorhinchus callorynchus | |
| |
| American elephantfish range.[2] | |
Species Description
editCallorhinchus callorynchus, commonly known as the American elephant fish or cockfish, is a species in the family Callorhinchidae, found in the coastal waters of southern Brazil, Peru, Chile, Argentina, and Uruguay. Their natural habitat is in open seas, typically at depths of no more than 200 meters. However, during mating and egg-laying periods, they can be found in shallow coastal waters. These fish have a silver appearance with large brown spots scattered across their bodies, and a hint of pink around areas like the mouth and fins. As a benthic forager, they have a distinctive plough-shaped nose, which helps them crush invertebrate prey such as scallops. Female American elephant fish can grow up to about 102 cm in length, while males reach around 85 cm. At birth, they are approximately 13 cm long.
Being a holocephalan from the southwestern region of the Atlantic, C. callorynchus is a vital resource for fisheries in Argentina. A study was conducted on the reproductive biology of the cockfish by Melisa A. Chierichetti from UNMDP, which found that there was a presence of sexual dimorphism, where the females were larger and heavier than the males of that population.[3]: 7 Another aspect of this study had discovered that the relative fecundity rate of the C. callorynchus population was significantly low because the females were in the resting stage of their reproductive cycle. Also, the males in the population weren't mature, thus the population was found to not be highly reproductive.[3]: 6 This information was expected to be helpful in implementing methods for conservation and reduced over-fishing.[3]: 2
References
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- ^ Finucci, B.; Cuevas, J.M. (2020). "Callorhinchus callorynchus". IUCN Red List of Threatened Species. 2020: e.T63107A3117894. doi:10.2305/IUCN.UK.2020-2.RLTS.T63107A3117894.en. Retrieved 18 November 2021.
- ^ IUCN (International Union for Conservation of Nature) 2007. Callorhinchus callorynchus. In: IUCN 2015. The IUCN Red List of Threatened Species. Version 2015.2. "The IUCN Red List of Threatened Species". Archived from the original on 2014-06-27. Retrieved 2013-09-28.. Downloaded on 24 July 2015.
- ^ a b c Chierichetti, Melisa A.; Scenna, Lorena B.; Giácomo, Edgardo E. Di; Ondarza, Paola M.; Figueroa, Daniel E.; Miglioranza, Karina S. B. (2017). "Reproductive biology of the cockfish, Callorhinchus callorynchus (Chondrichthyes: Callorhinchidae), in coastal waters of the northern Argentinean Sea". Neotropical Ichthyology. 15 (2). doi:10.1590/1982-0224-20160137. hdl:11336/64515. ISSN 1679-6225.
External links
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