Seasonal variation in the size and abundance of the invading Bythotrephes in Harp Lake, Ontario, Canada

  title={Seasonal variation in the size and abundance of the invading Bythotrephes in Harp Lake, Ontario, Canada},
  author={Norman David Yan and Trevor W. Pawson},
Bythotrephes invaded Harp Lake, Ontario, Canada, in the early 1990s. Here we describe seasonal changes in the size, abundance and life history of the invader. The weight of Bythotrephes could be accurately estimated (r2 =0.90) from the length of its body and the state of development of its brood, but substantial (22%) corrections for shrinkage in sugarformalin were required. The seasonality of the size and abundance of Bythotrephes was apparently regulated by the interaction of fish predation… CONTINUE READING
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