Overview

Comprehensive Description

Biology

Also caught with drawnets. Occurs in well-vegetated swamps and along the edges of rivers. Also occurs in fast-flowing reaches over sand and rocks. Feeds on small fish, shrimps and insects. A mouthbrooding species which breeds in spring (Ref. 6465).
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Distribution

Range Description

This species is known from the Congo to Namibia and Namibia and Botswana.

Central Africa: Serranochromis angusticeps is known from the Luapula-Mweru system and from the Lufira River.

Southern Africa: It is found in the upper Zambezi, Cunene, Okavango and Kafue systems, as well as the Zambian Congo and possibly some coastal rivers north of the Cunene in Angola (Skelton 2001).
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Africa: Cunene River system (Angola and Namibia), Okavango River, upper Zambezi, and Kafue Rivers (Angola, Namibia, Botswana, Zambia, Zimbabwe), and Luapula-Moeru (Congo River system) in Democratic Republic of the Congo and Zambia.
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Central and southern Africa.
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Physical Description

Size

Maximum size: 410 mm SL
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Max. size

41.0 cm SL (male/unsexed; (Ref. 7248)); max. published weight: 2,500 g (Ref. 5693); max. reported age: 9 years (Ref. 7248)
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
Serranochromis angusticeps is a demersal species that occurs in well-vegetated swamps and along the edges of rivers. It also occurs in fast-flowing reaches over sand and rocks. Winemiller (1991) considered it to be a lagoon-dwelling, diurnal, ambush piscivore. This species feeds on small fish, shrimps and insects. It is a mouth-brooding species which breeds in spring (de Moor and Bruton 1988). The female incubates the eggs in her mouth. Parental care is exercised for a short while after hatching when the juveniles move off to shallow grassy areas and there they remain, in the Upper Zambezi, until floodwaters recede and force them back to the main river. They seek refuge in lagoons and backwaters until they reach a size large enough to avoid predation by tigerfish in the open waters of the river.

Systems
  • Freshwater
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Environment

demersal; freshwater
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Life History and Behavior

Life Cycle

Female incubates eggs in her mouth. Parental care is exercised for a short while after hatching when the juveniles move off to shallow grassy areas and there they remain, in the Upper Zambezi, until floodwaters recede and force them back to the main river. They seek refuge in lagoons and backwaters until reaching a size large enough to avoid predation by tigerfish in the open waters of the river.
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Serranochromis angusticeps

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 8
Species With Barcodes: 1
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2010

Assessor/s
Marshall, B., Moelants, T. & Tweddle, D.

Reviewer/s
Snoeks, J., Tweddle, D., Getahun, A., Lalèyè, P., Paugy, D., Zaiss, R., Fishar, M.R.A & Brooks, E.

Contributor/s

Justification
Although there are localised threats, this species has a wide distribution. It is therefore listed as Least Concern. It has also been assessed regionally as Least Concern for central and southern Africa.
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Population

Population
This species is widespread and fairly common.

Population Trend
Unknown
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Threats

Major Threats
Serranochromis angusticeps is commercially used for aquaculture. Overfishing in Luapula and Lake Mweru with drawnets pose threats to the species. Mining in the Katanga region for cobalt, copper, tin, uranium, dams and the use of toxic plants for fishing and overfishing form threats in this region.
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Least Concern (LC)
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Management

Conservation Actions

Conservation Actions
Since 2007 it has been prohibited to fish in Lake Mweru and the Luapula River on the Congolese site of the border. In Zambia, there is the Kasanka National Park around Lake Bangweulu. The fines didn’t work in this region. Even scientific collections were stopped. The government has burned 10,000 nets after measuring the nets. The governor (Morris Katunge) has paid the fishermen. The first of May 2008, fishing was allowed again, but with controlled mesh sizes.
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Relevance to Humans and Ecosystems

Benefits

Importance

fisheries: commercial; aquaculture: commercial; gamefish: yes; aquarium: commercial
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