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2 documents found tagged exotic fish [X]
  • Title
    Unregulated aquaculture and invasive alien species: a case study of the African Catfish Clarias gariepinus in Vembanad Lake (Ramsar Wetland), Kerala, India
    Type
    Journal Article
    Description
    Indiscriminate and illegal farming of the African Catfish Clarias gariepinus, in central Kerala has now resulted in the escape and spread of the species into Vembanad Lake, a large brackish water wetland and inland fish diversity hotspot. We collected 17 individuals of C. gariepinus ranging in size from 200 to 750 mm from different locations in the southern sector of the lake during a field survey conducted in 2007. Samples comprised of mature specimens of both sexes indicating their reproductive potential in the study area. The possible impacts of spread of C. gariepinus into natural water bodies of Kerala, especially the Vembanad Lake, and options for their management are discussed.
    Attribution
    Krishnakumar K., Ali A., Pereira B., Raghavan R. (2011). Journal of Threatened Taxa 5(3) pp. 1737-1744; doi:10.11609/JoTT.o2378.1737-44
  • Title
    Species persistence: a re-look at the freshwater fish fauna of Chennai, India
    Type
    Journal Article
    Description
    Loss of habitat is one of the prime reasons for species extinction. It is generally established that certain classes of animals are more prone to extinction than others due to their restricted use of available habitats. Freshwater fish are among these sensitive animals. While local extinctions have rendered some species rare throughout their geographical range, many others have demonstrated higher levels of persistence. This paper focuses on a recent in-depth study of the primary freshwater fishes in and around Chennai. The study that spanned a period of two years recorded a total of 75 species of primary freshwater fish, of which 17 are new reports.
    Attribution
    Knight J.D.M., Devi K.R. (2010). Journal of Threatened Taxa 12(2) pp. 1334-1337; doi:10.11609/JoTT.o2519.1334-7