Articles by Keyword: Alien Fish

Search results for Alien Fish

We found 275 results for you
  1. FIRST RECORD OF <em>OREOCHROMIS MACROCHIR</em> (BOULENGER, 1912) (PISCES:CICHLIDAE) FROM THE LIMPOPO RIVER IN SOUTHERN AFRICA.

    FIRST RECORD OF <em>OREOCHROMIS MACROCHIR</em> (BOULENGER, 1912) (PISCES:CICHLIDAE) FROM THE LIMPOPO RIVER IN SOUTHERN AFRICA.

    Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences
    During 1973/74, Barbus poechii, Oreochromis macrochir, O. andersonii, Serranochromis angusticeps, S. codringtonii, S. robustus and S. thumbergi from the Okavango System were introduced into the Shashe Dam (Limpopo System, Botswana). These species are alien to the Limpopo System. A fish...
  2. The need for research and monitoring on the impacts of translocated sharptooth catfish, <em>Clarias gariepinus</em>, in South Africa

    The need for research and monitoring on the impacts of translocated sharptooth catfish, <em>Clarias gariepinus</em>, in South Africa

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    The sharptooth catfish, Clarias gariepinus (Burchell, 1822), is a widespread African freshwater fish species which occurs naturally from the Nile to the Orange River. Through translocation aquaculturists, farmers, anglers and engineers have helped to extend its range into many South...
  3. 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...
  4. The global impact of alien trout species—a review; with reference to their impact in South Africa

    The global impact of alien trout species—a review; with reference to their impact in South Africa

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    Rainbow and brown trout have been introduced into at least 82 countries, where they have significantly impacted indigenous fish, aquatic invertebrates and amphibians. In many studies the second, and sometimes the first, most serious identified threat to indigenous aquatic fauna...
  5. 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...
  6. Influence of largemouth bass, <em>Micropterus salmoides</em>, on abundance and habitat selection of Cape galaxias, <em>Galaxias zebratus</em>, in a mountain stream in the Cape Floristic Region, South Africa

    Influence of largemouth bass, <em>Micropterus salmoides</em>, on abundance and habitat selection of Cape galaxias, <em>Galaxias zebratus</em>, in a mountain stream in the Cape Floristic Region, South Africa

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    Predatory alien fishes have been widely introduced into streams in the Cape Floristic Region (CFR), South Africa, but little is known about their effect on native fishes. Results from this 2006 study suggest that the presence of alien predatory largemouth...
  7. Invasive alien freshwater fishes in the Wilderness Lakes System, a wetland of international importance in the Western Cape Province, South Africa

    Invasive alien freshwater fishes in the Wilderness Lakes System, a wetland of international importance in the Western Cape Province, South Africa

    Item type: Journal Article • Journal: African Zoology
    The Wilderness Lakes System incorporates a RAMSAR listed wetland. Previous ichthyological surveys reported three invasive freshwater fishes; Oreochromis mossambicus (Mozambique tilapia), Gambusia affinis (mosquitofish) and Micropterus salmoides (largemouth bass) from this system. To assess the status of these alien fishes,...
  8. Movement behaviour of alien largemouth bass <em>Micropterus salmoides</em> in the estuarine headwater region of the Kowie River, South Africa

    Movement behaviour of alien largemouth bass <em>Micropterus salmoides</em> in the estuarine headwater region of the Kowie River, South Africa

    Item type: Journal Article • Journal: African Zoology
    The movement behaviour of largemouth bass Micropterus salmoides in the estuarine headwater region of the Kowie River, South Africa, was investigated using passive acoustic telemetry. Ten adult fish were tagged and released in four discrete pools below a weir that...
  9. Factors determining the occurrence of <em>Pleurodeles poireti</em> (Caudata: Salamandridae) on Edough Peninsula, northeastern Algeria

    Factors determining the occurrence of <em>Pleurodeles poireti</em> (Caudata: Salamandridae) on Edough Peninsula, northeastern Algeria

    Item type: Journal Article • Journal: African Journal of Herpetology
    Pleurodeles poireti is one of the lesser-known amphibians in the Mediterranean region. This species is strictly endemic to the Edough Peninsula in northeastern Algeria. Here we investigated the factors that determine the presence of P. poireti, by affecting its selection...
  10. Long-term physico-chemical and faunal changes in a small, rural South African estuary

    Long-term physico-chemical and faunal changes in a small, rural South African estuary

    Item type: Journal Article • Journal: African Zoology
    The Palmiet Estuary is a small, rural estuary in the Western Cape that only closes briefly during dry summers. The system was previously surveyed during 1979 to 1980 and we repeated the survey in April 2015 (mouth closed) and September...