fishery

In the late 1950s and early 1960s, Nile perch were introduced into Lake Victoria to improve fisheries; decades later the predator was linked to the loss of many native cichlids and transformation of the lake’s fishery

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In the late 1950s and early 1960s, Nile perch were introduced into Lake Victoria to improve fisheries; decades later the predator was linked to the loss of many native cichlids and transformation of the lake’s fishery

Nile PerchPhoto: Wikipedia In the late 1950s and early 1960s, Nile perch were introduced into Lake Victoria with the hope that the large predatory fish would strengthen local fisheries. The decision was intended to create new commercial opportunities and increase the supply of valuable fish. Instead, the species spread through one of the world’s largest … Read more

Alaska used rotenone to eliminate invasive pike from an entire lake; the pike vanished, and 6,836 Arctic char were later stocked to rebuild the native fishery

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Alaska used rotenone to eliminate invasive pike from an entire lake; the pike vanished, and 6,836 Arctic char were later stocked to rebuild the native fishery

In a remote corner of Southcentral Alaska, state biologists carried out a dramatic restoration: they treated an entire lake with rotenone, a plant-derived piscicide, to wipe out an invasive population of northern pike. After the treatment, post-surveys confirmed the pike were gone. The next step was rebuilding what had been lost. In June 2013, the … Read more