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Evaluation of cone fishways to facilitate passage of small-bodied fish

Aquaculture and Fisheries 2021年第2期6卷 125-134页

作者： Ivor G.Stuart Timothy J.Marsden Arthur Rylah Institute for Environmental Research Department of EnvironmentLandWater and Planning123 Brown StreetHeidelbergVictoria 3084Australia Australasian Fish Passage Services 6 Spinifex StreetFern BayNew South Wales 2295Australia

Fishways are being provided more regularly than ever before and new designs are needed to provide passage for whole fish *** recent progress,fishways have frequently performed poorly,especially for small-bodied fish(i.e.10-100 mm long),which can form large aggregations below stream *** was the genesis for the development of the cone fishway design,a new style of technical fishway which consists of a series of pre-fabricated cone-shaped concrete baffles installed laterally within a concrete *** cone design arose from the need to install rock ramp fishways at remote sites where rock was unavailable and where maintenance would be *** objective of the present study was to evaluate the suitability of the new cone fishway design to provide passage for small-bodied diadromous species(i.e.river downstream which find and pass through the cone *** most suitable experimental application of the cone fishway is at sites where there is:(i)a narrow(e.g.<0.4 m)headwater range,and(ii)where passage of small-bodied fish is a major ecological *** fishways provide a useful and novel option to improve passage of small-bodied fish,at appropriate sites,and contribute to a contemporary vision of restoration of whole fish communities.

关键词： fishway fish migration fish communities Australia tidal barrier Fitzroy river norman river Maribyrnong river

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