UPSC Ecology And Environment Current Ecological Developments Question Bank Current Ecological Developments

  • question_answer
    Which of the following species of exotic fish have affected marine ecology?

    A) Brown Trout                  

    B) Loch Leven Trout

    C) Rainbow Trout   

    D) All the above

    Correct Answer: D

    Solution :

    Introduction of Brown Trout, Loch Leven Trout and Rainbow Trout have a negative impact on marine ecology. The genetic impact of introduction of exotic fishes on native fishes can be seen in the form of ecological, biological and genetic effect of introduction. Alteration/extinction of gene pools results with crossbreeding or hybridization and backcrossing of the species.

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