124 pp. (2010) investigated the cold tolerance of H. letourneuxi in field and laboratory conditions. Groundwater “solution holes” provide dry-season refuge to native and introduced aquatic fauna and within these specific environments H. letourneuxi preyed heavily upon the Eastern mosquitofish, Gambusia holbrooki (Loftus et al., 2006). The African Jewelfish (Hemichromis letourneuxi) is a non-native fish established in south Florida and is known to be aggressive and potentially harmful to native fauna. H. letourneuxi, is a small, popular ornamental freshwater fish from Africa that has become established in aquatic habitats in Florida and Hawaii, Puerto Rico. Invasive range expansion is correlated to life- history variation, boldness and dispersal behavior. H. letourneuxi is an aggressive species, particularly during reproduction and it likely that this behavioural trait has assisted it to spread across the Florida peninsula in syntopy with other larger, aggressive cichlids (USGS NAS, 2016). Adults are very protective of their eggs and young. The male will vigorously pursue the female to initiate spawning. Salinity effects on behavioural response to hypoxia in the non-native Mayan cichlid, Schofield PJ; Loftus WF; Kobza RM; Cook MI; Slone DH, 2010. by Palomares, M. L. D. \Samb, B. Multiple predator effects and native prey responses to two non-native Everglades cichlids. In the field, all fish died during exposure to 4.0°C in shallow marsh habitat (Schofield et al., 2010). (2006) observed that the native Lepomis marginatus would not reproduce in close proximity to H. letourneuxi in controlled mesocosm trials (Loftus et al., 2006). Schofield, J.E. Abstract – Non‐native predators may have negative impacts on native communities, and these effects may be dependent on interactions among multiple non‐native predators. Gill T, 1862. Journal of Fish Biology, 30:147-159. Percent of non-native fishes were highest at the eastern boundary of Everglades National Park and declined westward. The diploid/haploid chromosome numbers of H. bimaculatus are 44/22 (Froese and Pauly, 2016). A further study by Moyer et al. African jewelfish: Hemichromis bimaculatus: African pompano: Alectis ciliaris: Also known as the pennant-fish and threadfin trevally. In Figure b above, the stars show where African jewelfish were first seen in ENP in 2000. However, no further information is available regarding populations in the Philippines or Europe. Food and feeding relationships of fish in the Sudd swamps (River Nile, southern Sudan). Almaco jack: Seriola rivoliana: Amazon sailfin catfish Records of H. guttatus in Cuatro Cienegas, Mexico (Contreras-Balderas and Ludlow, 2003; Lozano-Vilano et al., 20006) are likely to be H. letourneuxi. Species of Hemichromis are popular ornamental fish species maintained by hobbyists worldwide, although no data is available with regards to the value of H. letourneuxi. (2011) state that H. fasciatus and H. guttatus were established in a hot spring near Austrian Villach around 1970. In recent decades the distribution of H. letourneuxi has rapidly expanded and the species is now found across the southern half of the Florida peninsula. Hydrobiologia, 722:171-182. http://rd.springer.com/journal/10750. Shafland PL; Pestrak JM, 1982. London, UK: British Museum of Natural History, 392 pp. H. letourneuxi becomes aggressive when breeding as territories are established on the substrate and defended against intruders. © Copyright 2021 CAB International. It has also been collected from the central Florida counties of Glades, Hardee, Hendry and was first collected in the Archbold Reserve, Highlands County, in 2008 (O'Connor and Rothermel, 2013; USGS NAS, 2016). A study by O’Connor and Rothermel (2013) at Archbold Biological Station in peninsular Florida found that the mean total length of 864 H. letourneuxi captured was 56.0 + 11.2 standard deviation (SD) mm and the mean mass was 3.14 + 1.80 SD g. The length of the smallest reproductive individual was 47 mm and the adult sex ratio was 51:49 (M:F). This is however more likely to occur in areas that contain multiple populations and/or larger and widely distributed populations for example in Florida. (2009) lists H. letourneuxi as “present” in Europe as an introduced species with no further details. Tolerance of nonindigenous cichlid fishes (. African Jewelfish in a Breder trap Previous PSRP fish monitoring efforts were complicated by the recent invasion of this region by African Jewelfish ( Hemichromis letourneuxi ), an invasive nonnative fish that has become ubiquitous throughout much of South Florida. However, their study also concluded that, contrary to the effects of predatory fish introductions in other freshwater communities, they observed little evidence for a negative effect of exotic fish, including H. letourneuxi, on native organisms using a correlational approach (O’Connor and Rothermel, 2013). Reviews in Fish Biology and Fisheries, 25(1):117-145. http://rd.springer.com/journal/11160, Schofield PJ; Loftus WF; Brown ME, 2007. Max size is about 13-15 cm (5-6 шт), which is rather long one for a cichlid. The fry become free-swimming after approximately 24 hours and parental care may continue for some time while the fry grow (Seriously Fish, 2016). Boston, USA: Houghton Mifflin Company, 432 pp. Bailey R G, 1994. (Rehulková et al., 2013). On the west African genus Hemichromis and descriptions of some new species in the Museums of the Academy and the Smithsonian Institute. October 18, 2012 Year Accuracy. A revision of the genus Hemichromis Peters 1858 (Teleostei: Cichlidae). http://www.environment.gov.au/system/files/resources/fb1584f5-1d57-4b3c-9a0f-b1d5beff76a4/files/ornamental-fish.pdf. The distribution in this summary table is based on all the information available. There are greenish spots scattered around the body with a black spot in the middle. FAST FACTS: African Jewelfish (Hemichromis bimaculatus) —small fish native to Africa and introduced in early 1960s; maximum size five inches; associated with dense vegetation. (Hemichromis guttatus Gunther 1862 (Pisces: Cichlidae), Nueva Introduccion en Mexico, en Cuatro Cienegas, Coahuila. H. letourneuxi, is a small, popular ornamental freshwater fish from Africa that has become established in aquatic habitats in Florida and Hawaii, Puerto Rico. Museé Royal de L'Afrique Central-Tervuren-Belgique-Annales-Serie in-8-Sciences Zoologiques, 228. Gainesville, Florida, USA: USGS. The native Florida green watersnake, Nerodia floridana (Goff 1936), preying upon the nonindigenous African jewelfish, Hemichromis letourneuxi Sauvage 1880, in Florida. Volume III. Biological Invasions, 12(8):2441-2457. http://www.springerlink.com/content/j5677x47327186mr/?p=ae0e5f0a4f474234a26a149cbc10e84d&pi=7. 281 pp. Journal of Natural History. Freshwater fish diversity in Algeria with emphasis on alien species. The potential for the release of H. letourneuxi is correlated with the popularity of it and its abundance among fish hobbyists. The genus Hemichromis was erected by Peters (1858) based on the type species H. fasciatus. : //www.nps.gov/ever/learn/nature/upload/RES04-2FinalReportSecure.pdf, Rehulková E ; Hill JE ; Loftus WF ; Trexler ;... 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