Research on the Great Ouse: Overview and implications for management

  • Pinder L
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Abstract

Recent research on the regulated middle and lower reaches of the River Great Ouse is reviewed in the context of river management. Although research has focused on the requirements of Cyprinidae, especially in relation to spawning and development of the larval and juvenile fish, it is acknowledged that a perceived decline in the fishery is likely to be but one symptom of a more general decline in biodiversity and productivity. On the evidence of recent research, much of which is detailed in gapers in the present volume, attention is drawn to the shortage of spawning habitat for certain cyprinid species and the generally poor habitat conditions for young fish in the main channels. Marinas and side channels add significantly to habitat diversity and are important components of the system. Attention is drawn to the additional potential for adjacent, disused gravel pits to serve as surrogates for the natural floodplain features from which the regulated river is virtually isolated. Potential effects of the passage of boat traffic on fish and their habitats are reviewed and further research needs are indicated. (C) 1997 by John Wiley & Sons, Ltd.

Author-supplied keywords

  • boat traffic
  • current velocity
  • cyprinidae
  • fishes
  • food organisms
  • gravel pits
  • larval and juvenile fish habitat
  • lowland rivers
  • macrophytes
  • marinas
  • refuges
  • regulation
  • restoration
  • side channels
  • spawning habitat
  • streams

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Authors

  • L C V Pinder

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