Lates longispinis, also known as the Rudolf lates or Turkana perch, is a species of latid

Latidae

The Latidae are a family of perch-like fishes found in Africa and the Indian and Pacific Oceans. The family, previously classified subfamily Latinae in family Centropomidae, was raised to family status in 2004 after a cladistic analysis showed the original Centropomidae was paraphyletic.Many...

 fish that is endemic to Lake Turkana

Lake Turkana

Lake Turkana , formerly known as Lake Rudolf, is a lake in the Great Rift Valley in Kenya, with its far northern end crossing into Ethiopia. It is the world's largest permanent desert lake and the world's largest alkaline lake...

 (formerly known as Lake Rudolf) in Kenya

Kenya

Kenya , officially known as the Republic of Kenya, is a country in East Africa that lies on the equator, with the Indian Ocean to its south-east...

 and Ethiopia

Ethiopia

Ethiopia , officially known as the Federal Democratic Republic of Ethiopia, is a country located in the Horn of Africa. It is the second-most populous nation in Africa, with over 82 million inhabitants, and the tenth-largest by area, occupying 1,100,000 km2...

. It grows to 27.5 centimetres (10.8 in) in length. Lates longispinis is important to commercial fisheries and is also known as a gamefish. It is not known to exist in the aquarium fish

Aquarium fish

In fishkeeping, species of aquarium fish vary with the water chemistry of the aquarium.For species of fish found in particular types of aquaria, see:*List of brackish aquarium fish species*List of freshwater aquarium amphibian species...

 trade.

Little is known about its status, and consequently the IUCN classifies it as Data Deficient

Data Deficient

Data Deficient is a category applied by the IUCN, other agencies, and individuals to a species when the available information is not sufficient for a proper assessment of conservation status to be made...

, but according to Kenya's fisheries department the numbers are rising.

Feeding

The Rudolf lates lives in the deeper waters of the lake, eating prawn

Prawn

Prawns are decapod crustaceans of the sub-order Dendrobranchiata. There are 540 extant species, in seven families, and a fossil record extending back to the Devonian...

s off the bottom of the lake

Lake

A lake is a body of relatively still fresh or salt water of considerable size, localized in a basin, that is surrounded by land. Lakes are inland and not part of the ocean and therefore are distinct from lagoons, and are larger and deeper than ponds. Lakes can be contrasted with rivers or streams,...

s and feeding on schooling

Shoaling and schooling

In biology, any group of fish that stay together for social reasons are said to be shoaling , and if, in addition, the group is swimming in the same direction in a coordinated manner, they are said to be schooling . In common usage, the terms are sometimes used rather loosely...

 characins in the mid-water column.

Breeding

Not much is known about the breeding habits of L. longispinis. It spawns in the open water in the middle of the lake, and parental care is highly unlikely. The eggs

Egg (biology)

An egg is an organic vessel in which an embryo first begins to develop. In most birds, reptiles, insects, molluscs, fish, and monotremes, an egg is the zygote, resulting from fertilization of the ovum, which is expelled from the body and permitted to develop outside the body until the developing...

 and fry

Fry

-Food and cooking:* Frying, the act of cooking food in oil or fat** Pan frying, frying food in a flat pan** Stir frying, frying food in a wok and stirring it while it cooks* Full breakfast, a traditional cooked meal, also called a fry-up or Ulster fry...

 are believed to be pelagic.