Congo River fish evolution shaped by intense rapids: Genomic study in lower Congo reveals microscale diversification. The Congo has more than known 80 species. Join our newsletter list
Fish of the Congo River A local association of fishermen in Gamba, Gabon, controls fishing nets, and keeps track of the number and species of fish that each net/fisherman catches, to assist in monitoring off-take from the lagoon, rivers and lakes. Cichlids. American Museum of Natural History. The river forms the vast majority of the border between Zaire and also the Republic of Congo and drains greater than 1, 600, 000 square miles of land. Congo river fish evolution shaped by intense rapids by American Museum of Natural History A pair of aquarium-held cichlids of the species Telegramma brichardi . Flowing through the world's second largest area of rainforest, the system is also home to more than 700 species of freshwater fishes.
So far, scientists have discovered 320 fish species living in the Lower Congo River’s 350 kilometers of water. (For comparison, the entire Upper Nile River, a stretch well over 1,400 km long, supports only about 115 fish species.) The Democratic Republic of the Congo’s biodiversity of fish is widely dominated by various catfish species. Winding 4,700 km/2,900 miles through West Africa, the Congo is the second longest African river, after the Nile. The Congo River has a size of 0.5 to 10 miles. The name ‘Congo River’ was derived from the Kingdom of Kongo that used to inhabit the lands surrounding the mouth of the river. Being the second largest country, the Democratic Republic of the Congo boasts of housing over 400 fish species, several of which are endemic to the country.
It was six inches long, ghostly white and eyeless. The Congo River is the second only to the Amazon in terms of size and freshwater species diversity. The Congo River’s sources are in the highlands and mountains with the East African Rift, also Lake Tanganyika and River Mweru. Hydrological and biological diversity The lower Congo occupies just 2% of the area of the total Congo basin, but contains nearly 30% of all species, and 30% of those are endemic to the lower Congo, meaning that they are only found in this region. In the turbulent lower Congo River (indicated on the map in red), Melanie Stiassny studies convergent evolution in closely related fish species. It is found in the Congo River system and Lake Tanganyika and is the largest member of the family Alestidae. (Image credit: Courtesy of Melanie Stiassny) To find out, the scientists sent intrepid kayakers over the rapids in 2008 and 2009, deployed with equipment to measure the river depths. (2017, February 17). Freshwater Fish Species in Zaïre (Congo) River [Central Africa] The tables below were generated from Fishbase.org - A project to provide indexing and links for all known species as the baseline dataset for studies of global biodiversity. A conspicuous feature of the Congo River Basin forests is that the diversity of species varies greatly from one place to another. Several species belonging to the genus Hydrocynus of the family Alestidae are referred to as "tigerfish", and are particularly prized as game fish. The turbulent lower Congo River, home to hundreds of fish species, is not only Earth's deepest river; it also presents biologists with an intriguing window into evolution. She studies fish on the lower Congo and over the past decade has discovered six new species (she's working on identifying three more). Evolution, population genetics and speciation in African freshwater fishes. These African fish are found in many rivers and lakes on the continent and are fierce predators with distinctive, proportionally large teeth. Despite the harsh conditions of the central stream of the lower Congo, this stretch of the river boasts an exceptionally high diversity of fish species. 400 species of mammals, 700 fish species, and 1,000 species of birds also live in the Congo Basin. The river, in turn, gave its name to the Republic of the Congo and the Democratic Republic of the Congo that sprawl to the east along its river banks. We study the origins of fish diversity in African rivers and lakes, with a current focus on some of the most extreme aquatic environments found on the continent. Freshwater Fish Species in Zaïre (Congo) River [Central Africa] The tables below were generated from Fishbase.org - A project to provide indexing and links for all known species as the baseline dataset for studies of global biodiversity. Mysterious blind 'ghost fish' reveals Congo to be the deepest river in the world It's so deep there could be species lurking in its depths that we've never seen before. Within this equatorial domain, the Congo and its principal tributaries form a separate ecological milieu.
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