Overview

Comprehensive Description

Biology

Found in clear, vegetated littoral habitats in floodplain pans, lakes and estuaries (Ref. 7248). Feeds on small crustaceans and insect larvae (Ref. 7248). Spawns in summer (Ref. 7248).
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Distribution

Range Description

Eastern Cape coastal Rivers, South Africa north into central Mozambique.
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Africa: southern Mozambique to Knysna, South Africa (Ref. 2798). Threatened by deterioration of riverine and estuarine habitats (Ref. 7248).
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Southeastern Africa.
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Physical Description

Morphology

Dorsal spines (total): 7; Dorsal soft rays (total): 7 - 8; Analspines: 1; Analsoft rays: 5 - 7
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Size

Maximum size: 42 mm SL
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Max. size

4.2 cm SL (male/unsexed; (Ref. 7248))
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Diagnostic Description

Olive in color, with dark bars anteriorly and diffuse spots posteriorly; 3-4 dark spot along anal base and caudal peduncle; 2 dark spots at caudal base (Ref. 2798).
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
Coastal rivers and lakes, both freshwater and estuarine areas.

Systems
  • Freshwater
  • Marine
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Environment

benthopelagic; freshwater; brackish
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Depth range based on 2 specimens in 1 taxon.

Environmental ranges
  Depth range (m): 0.2 - 130

Graphical representation

Depth range (m): 0.2 - 130
 
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Trophic Strategy

Found in clear, vegetated littoral habitats in floodplain pans, lakes and estuaries. Feeds on small crustaceans and insect larvae.
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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
2007

Assessor/s
Bills, R. & Engelbrecht, J. and Cambray, J.

Reviewer/s
Snoeks, J. (Freshwater Fish Red List Authority) & Darwall, W. (Freshwater Biodiversity Assessment Unit)

Contributor/s

Justification
Widespread and locally abundant from the Eastern Cape, South Africa to the Limpopo River in central Mozambique. Collection gaps are probably due to lack of collections and collection methods. No serious threats identified.

History
  • 1994
    Rare
    (Groombridge 1994)
  • 1990
    Rare
    (IUCN 1990)
  • 1988
    Rare
    (IUCN Conservation Monitoring Centre 1988)
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Population

Population
Abundant in suitable habitats.

Population Trend
Unknown
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Threats

Major Threats
Coastal dune mining, harbour developments and other tourist related coastal developments are potential threats.
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Least Concern (LC)
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Management

Conservation Actions

Conservation Actions
Conservation issues need to be considered when proposls for coastal developments are made.
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Wikipedia

Checked goby

Redigobius dewaali, the Checked goby, is a species of goby native to the Indian Ocean coast of Africa from Mozambique and South Africa. This species inhabits fresh and brackish waters of estuaries, lakes and floodplain pans where there is plentiful vegetation. It can reach a length of 4.2 centimetres (1.7 in) SL.[2]

References[edit]

  1. ^ Bills, R. & Engelbrecht, J. and Cambray, J. 2007. Redigobius dewaali. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.1. <www.iucnredlist.org>. Downloaded on 23 September 2013.
  2. ^ Froese, Rainer and Pauly, Daniel, eds. (2013). "Redigobius dewaali" in FishBase. June 2013 version.
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