Articles by Keyword: Threatened Fish

Search results for Threatened Fish

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  1. NEW DISTRIBUTION RECORDS FOR <em>CLARIAS THEODORAE</em> WEBER 1897, <em>BARBUS EUTAENIA</em> BOULENGER 1904, <em>BARBUS POLYLEPIS</em> BOULENGER 1907 AND <em>OPSARIDIUM ZAMBEZENSE</em> (PETERS 1852) FROM THE WATERBERG, TRANSVAAL, SOUTH AFRICA.

    NEW DISTRIBUTION RECORDS FOR <em>CLARIAS THEODORAE</em> WEBER 1897, <em>BARBUS EUTAENIA</em> BOULENGER 1904, <em>BARBUS POLYLEPIS</em> BOULENGER 1907 AND <em>OPSARIDIUM ZAMBEZENSE</em> (PETERS 1852) FROM THE WATERBERG, TRANSVAAL, SOUTH AFRICA.

    Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences
    New distribution records for four fish species in the Waterberg mountains of the Transvaal were established during surveys since 1987–92. Clarias theodorae was previously reported from one locality each in the Waterberg and Soutpansberg. The current survey disclosed its presence...
  2. A preliminary assessment of the impact of alien rainbow trout (<em>Oncorhynchus mykiss</em>) on indigenous fishes of the upper Berg River, Western Cape Province, South Africa

    A preliminary assessment of the impact of alien rainbow trout (<em>Oncorhynchus mykiss</em>) on indigenous fishes of the upper Berg River, Western Cape Province, South Africa

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    Impacts of alien rainbow trout (Oncorhynchus mykiss) on critically endangered Berg River redfin (Pseudobarbus burgi), Cape kurper (Sandelia capensis) and Cape galaxias (Galaxias zebratus) in the upper Berg River were investigated in terms of predation and spatial interactions. Trout stomach...
  3. Conservation biology and management of a critically endangered cyprinid, the Twee River redfin, <em>Barbus erubescens</em> (Teleostei: Cyprinidae), of the Cape Floristic Region, South Africa

    Conservation biology and management of a critically endangered cyprinid, the Twee River redfin, <em>Barbus erubescens</em> (Teleostei: Cyprinidae), of the Cape Floristic Region, South Africa

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    The Twee River redfin Barbus erubescens is a critically endangered small cyprinid endemic to the Twee River System, a subcatchment of the Olifants-Doring River System of South Africa. It is currently the most threatened freshwater fish in both the Cape...
  4. Conserving the fishes of the Twee River, Western Cape, South Africa: revisiting the issues

    Conserving the fishes of the Twee River, Western Cape, South Africa: revisiting the issues

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    The Twee River catchment contains two endemic fish species — the Twee River redfin and the Twee River galaxias — which are threatened by water abstraction, habitat degradation, and the presence of introduced fishes. Fyke nets were used to determine...
  5. A CHECKLIST OF THE FISH SPECIES OF THE CROCODILE AND MATLABAS RIVERS (LIMPOPO SYSTEM) OF THE TRANSVAAL

    A CHECKLIST OF THE FISH SPECIES OF THE CROCODILE AND MATLABAS RIVERS (LIMPOPO SYSTEM) OF THE TRANSVAAL

    Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa
    This paper reports on the results of a fish distribution survey of the Crocodile and Matlabas Rivers (Limpopo System). Fifteen species are recorded for the first time in the Matlabas River. Seven unlisted species are recorded for the Crocodile River,...
  6. FISH SPECIES IN STEIUTONTEIN DAN, TUGELA-VAAI SYSTEM, SOUTH AFRICA

    FISH SPECIES IN STEIUTONTEIN DAN, TUGELA-VAAI SYSTEM, SOUTH AFRICA

    Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa
    Two alien species and seven indigenous species, including two minnow species, were present in Sterkfontein Dam. Of the larger species, Barbus aeneus and Labco capensis were the dominant in terms of numbers.
  7. The role of the Tsitsikamma National Park in the management of four shore-angling fish along the south-eastern Cape coast of South Africa

    The role of the Tsitsikamma National Park in the management of four shore-angling fish along the south-eastern Cape coast of South Africa

    Item type: Journal Article • Journal: South African Journal of Marine Science
    The role of the Tsitsikamma National Park (TNP) in the management of four important shore-angling fish (Diplodus sargus capensis, Diplodus cervinus hottentotus, Pachymetopon grande and Dichistius capensis) was evaluated using data obtained from two independent studies conducted over a similar...
  8. THE JUVENILE FISH POPULATION IN THE MARGINAL AREAS OF THE HENDRIK VERWOERD DAM

    THE JUVENILE FISH POPULATION IN THE MARGINAL AREAS OF THE HENDRIK VERWOERD DAM

    Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa
    Small seine nets were used to collect minnow and juvenile fish from a variety of habitats around the 350 km shoreline of the Hendrik Verwoerd Darn. In addition several areas were sectioned off from the darn and poisoned. The species...
  9. BATHYMETRIC STUDIES ON THE PONGOLO RIVER FLOODPLAIN

    BATHYMETRIC STUDIES ON THE PONGOLO RIVER FLOODPLAIN

    Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa
    Thirteen of the major pans on the Pongolo river floodplain have been studied. Most are shallow (>2.5 m) and regularly lose up to 70% of their water each year, although few dry out. Floods inundate considerable areas (1000 ha) around...
  10. THE SPECIFIC NAME OF THE SNAKE CATFISH, <em>CLAXIAS THEOWRAE</em> WEBER 1897

    THE SPECIFIC NAME OF THE SNAKE CATFISH, <em>CLAXIAS THEOWRAE</em> WEBER 1897

    Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa
    Workers revising Southern African freshwater fishes have endeavoured to provide brief information on those persons who have had fish named after them. The provenance of all such patronyms in currently valid species has been established with one exception: Clarias theodorae...