Overview

Comprehensive Description

Biology

Forms large schools in pools, rivers and smaller streams with muddy bottoms or among vegetation near the shore. Prefers to swim upside-down and will feed in this position as it skims along just under the surface sucking in floating food. The mouth is ventrally located and the teeth are 'fused' together into a rasping patch or plate that is used to scrape algae and slime as well as other types of organisms off the surfaces of the plants, stones, driftwood, etc. Oviparous (Ref. 205).
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Distribution

Range Description

Synodontis contractus is known from Pool Malebo (Stanley Pool) and from the Central Congo basin.
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Africa: middle Congo River basin, including Pool Malebo (= Stanley Pool) and the Kasai drainage (Ref. 78218, 82238).
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Congo River basin, central Africa.
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Physical Description

Size

Maximum size: 97 mm TL
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Max. size

9.7 cm TL (male/unsexed; (Ref. 3202))
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
Synodontis contractus is a benthopelagic species. It forms large schools in pools, rivers and smaller streams with muddy bottoms or among vegetation near the shore. Synodontis contractus prefers to swim upside-down and will feed in this position as it skims along just under the surface sucking in floating food. The mouth is ventrally located and the teeth are 'fused' together into a rasping patch or plate that is used to scrape algae and slime as well as other types of organisms off the surfaces of the plants, stones, driftwood, etc. It is oviparous with distinct pairing during breeding (Breder and Rosen 1966).

Systems
  • Freshwater
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Environment

benthopelagic; freshwater; pH range: 6.2 - 7.2; dH range: 4 - 15
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Life History and Behavior

Life Cycle

Oviparous (Ref. 205). Distinct pairing during breeding (Ref. 205).
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Synodontis contracta

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 2
Specimens with Barcodes: 2
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
Moelants, T.

Reviewer/s
Brummett, R., Mbe Tawe, A.N., Dening Touokong, C., Reid, G.M., Snoeks, J. Staissny, M., Moelants, T., Mamonekene, V., Ndodet, B., Ifuta, S.N.B., Chilala, A., Monsembula, R., Ibala Zamba, A., Opoye Itoua, O., Pouomogne, V., Darwall, W. & Smith, K.

Contributor/s

Justification
The species is widespread or without major threats throughout the Central Africa assessment region and is assessed as Least Concern.
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Population

Population
No information available.

Population Trend
Unknown
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Threats

Major Threats
Synodontis contractus is commercially used as an aquarium species.
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Least Concern (LC)
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Management

Conservation Actions

Conservation Actions
None known.
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Relevance to Humans and Ecosystems

Benefits

Importance

fisheries: of no interest; aquarium: commercial
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Wikipedia

Synodontis contractus

Synodontis contractus, the Bugeye squeaker, is a species of upside-down catfish native to the Congo Basin of the Democratic Republic of the Congo and the Republic of the Congo. This species grows to a length of 9.7 centimetres (3.8 in) TL. This species can be found in the aquarium trade.

References[edit]

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