Tilapia rendalli

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	CHORDATA	ACTINOPTERYGII	PERCIFORMES	CICHLIDAE

Scientific Name:

Tilapia rendalli

Species Authority

(Boulenger, 1896)

Common Name/s:

English

–

Redbreast Tilapia

Assessment Information [top]

Red List Category & Criteria:	Least Concern ver 3.1
Year Assessed:	2006
Assessor/s	Natakimazi, G. & Hanssens, M.
Evaluator/s:	Snoeks, J. (Freshwater Fish Red List Authority) & Darwall, W. (Freshwater Biodiversity Assessment Programme)
Justification: This species has a large native distribution range with no known major widespread threats. It has also been successfully introduced into Lake Victoria and many other dams and river systems where it is now well established.

Geographic Range [top]

Range Description:	Native to the Lake Tanganyika and Malawi Basins and Lakes Chilwa, Chuita and the Shire River (Malawi). Introduced in Lake Victoria and many dams and water systems all over the country, e.g., Pangani drainage (including Lake Jipe), Lake Chala and Athi/Sabaki drainage. Also introduced in the Tana River system (Mann 1966, 1968) (Seegers et al., unpublished). According to Welcomme (1988) and Lever (1996) introduced from an unrecorded source into Kenya in 1955 for stocking (Seegers et al. unpub.). Has also been introduced and is now well settled in upper and middle Akagera system.
Countries:	Native: Burundi; Tanzania, United Republic of Introduced: Kenya

Range Description:

Native to the Lake Tanganyika and Malawi Basins and Lakes Chilwa, Chuita and the Shire River (Malawi). Introduced in Lake Victoria and many dams and water systems all over the country, e.g., Pangani drainage (including Lake Jipe), Lake Chala and Athi/Sabaki drainage. Also introduced in the Tana River system (Mann 1966, 1968) (Seegers et al., unpublished). According to Welcomme (1988) and Lever (1996) introduced from an unrecorded source into Kenya in 1955 for stocking (Seegers et al. unpub.). Has also been introduced and is now well settled in upper and middle Akagera system.

Countries:

Native:

Burundi; Tanzania, United Republic of

Introduced:

Kenya

Population [top]

Population:	No information available.
Population Trend:	Unknown

Habitat and Ecology [top]

Habitat and Ecology:	Tolerant of a wide range of temperatures (11–37°C) and salinity to 19 parts per thousand. Prefers quiet, well-vegetated water along river margins or backwaters, floodplains and swamps (Skelton 1993). Feeds mainly on water plants and algae but also takes aquatic invertebrates and even small fish (Skelton 1993). Breeding pairs clear the vegetation in shallow water to form a nest about 0.5–1.2 m across and excavate tunnel-like brood chambers in which the eggs and larvae are protected. Juveniles up to 15 mm SL remain within the brood chambers. Several broods are raised each summer (Skelton 1993). Max. size: 250 mm (Teugels and Thys van den Audenaerde in Daget et al. 1991)
Systems:	Freshwater

Habitat and Ecology:

Tolerant of a wide range of temperatures (11–37°C) and salinity to 19 parts per thousand. Prefers quiet, well-vegetated water along river margins or backwaters, floodplains and swamps (Skelton 1993). Feeds mainly on water plants and algae but also takes aquatic invertebrates and even small fish (Skelton 1993). Breeding pairs clear the vegetation in shallow water to form a nest about 0.5–1.2 m across and excavate tunnel-like brood chambers in which the eggs and larvae are protected. Juveniles up to 15 mm SL remain within the brood chambers. Several broods are raised each summer (Skelton 1993). Max. size: 250 mm (Teugels and Thys van den Audenaerde in Daget et al. 1991)

Systems:

Freshwater

Threats [top]

Major Threat(s):	Fishing pressure; and loss of vegetated margins and floodplains around rivers and lakes due to agriculture extension.

Major Threat(s):

Fishing pressure; and loss of vegetated margins and floodplains around rivers and lakes due to agriculture extension.

Conservation Actions [top]

Conservation Actions:	No information available.

Conservation Actions:

No information available.

Citation:	Natakimazi, G. & Hanssens, M. 2006. Tilapia rendalli. In: IUCN 2008. 2008 IUCN Red List of Threatened Species. <www.iucnredlist.org>. Downloaded on 22 November 2008.
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