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| ''B. roseni'' is distributed along the ] slope of Central America, from the drainage of the ] in Costa Rica to the ] in western Panama.<ref name="Bussing"/> The species is common throughout much of its range,<ref name="iucn"/> but rare in the south of Costa Rica.<ref name="Bussing"/> In the north it is replaced by ''B. rhabdophora'' and in the south by other '']'' species.<ref name="Bussing"/> | ''B. roseni'' is distributed along the ] slope of Central America, from the drainage of the ] in Costa Rica to the ] in western Panama.<ref name="Bussing"/> The species is common throughout much of its range,<ref name="iucn"/> but rare in the south of Costa Rica.<ref name="Bussing"/> In the north it is replaced by ''B. rhabdophora'' and in the south by other '']'' species.<ref name="Bussing"/> | ||
| ''B. roseni'' lives in stagnant and slow to moderately fast flowing waters. It may be found on the surface or in the midwaters.<ref name="Bussing"/> Its habitats are between 10 and 651 m ],<ref name="Ingley">{{cite book|first=Spencer J.|last=Ingley|title=Elevational range expansion in a neotropical live-bearing fish from Panama: implications for adaptive evolution|journal=Southwestern Naturalist|pages=396-399|volume=59|issue=|url=https://www.mdpi.com/1424-2818/6/3/597|year=2014}}</ref> and the water temperature ranges from 22 to 30 °C.<ref name="Bussing"/> One such habitat, a creek by the ] near the border with ], is composed of large boulders, and there ''B. roseni'' stays in the shallow waters along with '']''; the deeper waters are inhabited by ''], a '']'' species, an '']'' species, and certain ], which are larger and dominate ''B. roseni''.<ref name="Dost"/> An evolutionarily distinct population inhabits a ]-rich spring in the ] drainage.<ref name="Greenway">{{cite book|first1=Ryan|last1=Greenway|first2=Lenin|last2=Arias-Rodriguez|first3=Pete|last3=Diaz|first4=Michael|last4=Tobler|year=2014|title=Patterns of macroinvertebrate and fish diversity in freshwater sulphide springs|journal=Diversity|pages=597-632|volume=6|issue=3|url=https://www.mdpi.com/1424-2818/6/3/597}}</ref> | ''B. roseni'' lives in stagnant and slow to moderately fast flowing waters. It may be found on the surface or in the midwaters.<ref name="Bussing"/> Its habitats are between 10 and 651 m ],<ref name="Ingley">{{cite book|first=Spencer J.|last=Ingley|title=Elevational range expansion in a neotropical live-bearing fish from Panama: implications for adaptive evolution|journal=Southwestern Naturalist|pages=396-399|volume=59|issue=|url=https://www.mdpi.com/1424-2818/6/3/597|year=2014}}</ref> and the water temperature ranges from 22 to 30 °C.<ref name="Bussing"/> At lower elevations the temperature is higher, the flow is slower, and the substrate consists of sand, gravel, and mud, whereas at higher elevations the water is cooler and faster and runs over small stones and medium to large boulders.<ref name="Ingley"/><ref name="iucn"/> One such habitat, a creek by the ] near the border with ], is composed of large boulders, and there ''B. roseni'' stays in the shallow waters along with '']''; the deeper waters are inhabited by ''], a '']'' species, an '']'' species, and certain ], which are larger and dominate ''B. roseni''.<ref name="Dost"/> An evolutionarily distinct population inhabits a ]-rich spring in the ] drainage.<ref name="Greenway">{{cite book|first1=Ryan|last1=Greenway|first2=Lenin|last2=Arias-Rodriguez|first3=Pete|last3=Diaz|first4=Michael|last4=Tobler|year=2014|title=Patterns of macroinvertebrate and fish diversity in freshwater sulphide springs|journal=Diversity|pages=597-632|volume=6|issue=3|url=https://www.mdpi.com/1424-2818/6/3/597}}</ref> | ||
| ''B. roseni'' is an ] species.<ref name="Bussing"/> It may be kept in a home ], but is known to be aggressive.<ref name="Dost"/> | ''B. roseni'' is an ] species.<ref name="Bussing"/> It may be kept in a home ], but is known to be aggressive.<ref name="Dost"/> | ||
Revision as of 12:57, 23 December 2024
Species of livebearer fish
| Cardinal brachy | |
|---|---|
| |
| Male (top) and female (bottom) | |
| Conservation status | |
 Near Threatened (IUCN 3.1) | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Cyprinodontiformes |
| Family: | Poeciliidae |
| Genus: | Brachyrhaphis |
| Species: | B. roseni |
| Binomial name | |
| Brachyrhaphis roseni Bussing, 1988 | |
Brachyrhaphis roseni, commonly known as the cardinal brachy, is a poeciliid fish from Costa Rica.
B. roseni was scientifically described by William Bussing in 1988, but was known to livebearers enthusiasts from the 1960s.
B. roseni grows to 6 cm. The fish have a slightly arched body and twelve dark vertical stripes, which are normally more prominent in males. The dorsal fin is half orange with a dark margin. The caudal fin has an orange edge; in males there is also a dark band before the edge. There are commonly dark stripes near the base of the fin. The anal fin is yellowish with a dark blotch. B. roseni is similar to the related species B. rhabdophora.
B. roseni is distributed along the Pacific slope of Central America, from the drainage of the Coto Colorado River in Costa Rica to the Santa María River in western Panama. The species is common throughout much of its range, but rare in the south of Costa Rica. In the north it is replaced by B. rhabdophora and in the south by other Brachyrhaphis species.
B. roseni lives in stagnant and slow to moderately fast flowing waters. It may be found on the surface or in the midwaters. Its habitats are between 10 and 651 m above sea level, and the water temperature ranges from 22 to 30 °C. At lower elevations the temperature is higher, the flow is slower, and the substrate consists of sand, gravel, and mud, whereas at higher elevations the water is cooler and faster and runs over small stones and medium to large boulders. One such habitat, a creek by the Pan-American Highway near the border with Costa Rica–Panama border, is composed of large boulders, and there B. roseni stays in the shallow waters along with Rivulus hildebrandi; the deeper waters are inhabited by Poecilia gillii, a Curimata species, an Astyanax species, and certain cichlids, which are larger and dominate B. roseni. An evolutionarily distinct population inhabits a sulphide-rich spring in the David River drainage.
B. roseni is an insectivorous species. It may be kept in a home aquarium, but is known to be aggressive.
References
- ^ Angulo, A.; Lyons, T.J. (2020). "Brachyrhaphis roseni". IUCN Red List of Threatened Species. 2020: e.T164691405A164691531. doi:10.2305/IUCN.UK.2020-2.RLTS.T164691405A164691531.en. Retrieved 22 December 2024.
- ^ Bussing, William A. (1998). Freshwater fishes of Costa Rica. Editorial Universidad de Costa Rica. p. 207. ISBN 9977674892.
- ^ Dost, Uwe (April 2010). "Brachys from Costa Rica". Tropical Fish Hobbyist. TFH Publications. Retrieved 22 December 2024.
- ^ Ingley, Spencer J. (2014). Elevational range expansion in a neotropical live-bearing fish from Panama: implications for adaptive evolution. Vol. 59. pp. 396–399.
{{cite book}}:|journal=ignored (help) - Greenway, Ryan; Arias-Rodriguez, Lenin; Diaz, Pete; Tobler, Michael (2014). Patterns of macroinvertebrate and fish diversity in freshwater sulphide springs. Vol. 6. pp. 597–632.
{{cite book}}:|journal=ignored (help)
| Taxon identifiers | |
|---|---|
| Brachyrhaphis roseni | |