Location

Groningen, The Netherlands

Event Website

http://fishpassage.umass.edu/

Start Date

22-6-2015 2:30 PM

End Date

22-6-2015 2:45 PM

Description

Abstract:

For many decades the abundance of small diadromous fish has been monitored in the Waddensea region by IMARES on a small selection of locations. In 2001 Rijkswaterstaat Noord Nederland initiated a 3 year study at 23 locations to get a better spatial understanding of the abundance of diadromous fish at the different tidal barriers. This study was carried out by RIKZ and Wintermans Ecologenbureau in close cooperation with several Regional Water Authorities, professional fishermen, sport fishermen and many other volunteers. As part of the “Ruim Baan voor Vissen” project this study was repeated from 2012-2014 in order to determine if there were any long term developments notable in the numbers of diadromous fish. During the presentation the results of this study will be shown.

Showing up at a tidal barrier and getting past it is one thing…but how do the fish succeed migrating further inland to their spawning grounds? The last few years several studies have been carried out (or are still running) to answer this question. Examples like the migration of River Lamprey to the River Drentsche Aa (VEMCO) or smaller diadromous species (PIT) in River Westerwoldsche Aa will be presented. These results will be combined with more technical information about barriers on the route and the chosen technical fish pass solutions.

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Jun 22nd, 2:30 PM Jun 22nd, 2:45 PM

Session A2: From Banging Your Head into a Tidal Barrier to Migration Further Upstream. Migration Doesn't Stop at the Coastline

Groningen, The Netherlands

Abstract:

For many decades the abundance of small diadromous fish has been monitored in the Waddensea region by IMARES on a small selection of locations. In 2001 Rijkswaterstaat Noord Nederland initiated a 3 year study at 23 locations to get a better spatial understanding of the abundance of diadromous fish at the different tidal barriers. This study was carried out by RIKZ and Wintermans Ecologenbureau in close cooperation with several Regional Water Authorities, professional fishermen, sport fishermen and many other volunteers. As part of the “Ruim Baan voor Vissen” project this study was repeated from 2012-2014 in order to determine if there were any long term developments notable in the numbers of diadromous fish. During the presentation the results of this study will be shown.

Showing up at a tidal barrier and getting past it is one thing…but how do the fish succeed migrating further inland to their spawning grounds? The last few years several studies have been carried out (or are still running) to answer this question. Examples like the migration of River Lamprey to the River Drentsche Aa (VEMCO) or smaller diadromous species (PIT) in River Westerwoldsche Aa will be presented. These results will be combined with more technical information about barriers on the route and the chosen technical fish pass solutions.

https://scholarworks.umass.edu/fishpassage_conference/2015/June22/15