5d06d34c-f74d-461e-8d8b-c3351beb0db8 https://ipt.inbo.be/resource?r=visschade-occurrences David Buysse Research Institute for Nature and Forest (INBO)

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david.buysse@inbo.be 0000-0002-4437-5678 Dimitri Brosens Research Institute for Nature and Forest (INBO) / Belgian Biodiversity Platform

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dimitri.brosens@inbo.be 0000-0002-0846-9116 David Buysse Research Institute for Nature and Forest (INBO)

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david.buysse@inbo.be 0000-0002-4437-5678 Afdeling Operationeel Waterbeheer VMM

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https://www.vlaanderen.be/nl/contact/adressengids/administratieve-diensten-van-de-vlaamse-overheid/beleidsdomein-omgeving/vlaamse-milieumaatschappij/afdeling-operationeel-waterbeheer 2025-12-09 eng Fish damage at pump stations is a sampling event dataset published by the Research Institute for Nature and Forest (INBO). It contains 7319 occurrences, recorded during 120 events as well as lengths and weights of the fish that were recorded. Issues with the dataset can be reported at https://github.com/inbo/data-publication/issuesWe have released this dataset to the public domain under a Creative Commons Zero waiver. We would appreciate it if you follow the INBO norms for data use (https://www.inbo.be/en/norms-data-use) when using the data. If you have any questions regarding this dataset, don't hesitate to contact us via the contact information provided in the metadata or via opendata@inbo.be. Samplingevent GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml fish pumping station mortality migration n/a Samplingevent GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml To the extent possible under law, the publisher has waived all rights to these data and has dedicated them to the Public Domain (CC0 1.0). Users may copy, modify, distribute and use the work, including for commercial purposes, without restriction. Creative Commons Zero v1.0 Universal https://spdx.org/licenses/CC0-1.0.html CC0-1.0 Waterschap Krekenland, Isabellagemaal at Boekhoute, Leopoldkanaal and Isabellakanaal. 3.768 4.202 51.31 51.072 2008-08-25 2008-08-20 2008-09-15 2008-11-28 2009-09-30 2009-12-09 Fishes. species Rutilus rutilus Roach species Blicca bjoerkna White bream species Abramis brama Bream species Anguilla anguilla European eel species Perca fluviatilis Perch species Esox lucius Pike The data was used to study fish mortality after natural downstream fish passage through a propeller pump and an Archimedes screw pump station. notPlanned David Buysse Research Institute for Nature and Forest (INBO)

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david.buysse@inbo.be 0000-0002-4437-5678 Data recorded during sampling Data imported in Recorder (NBN database) Query created to map data to DwC Data was published to GBIF In Flanders (Belgium) polder water levels are maintained with numerous pumping stations.Fish damage caused by two different pumping stations is documented in 2 reports. 1-A research report results on fish mortality after natural downstream fish passage through an Archimedes screw pump station (the “Isabellagemaal” at Boekhoute) are presented. The pump station has three big screws (3,6 m³/sec and 21 revolutions/min) and two smaller ones (1,2 m³/sec and 25 revolutions/min). These five screws pump the excess water from the “Leopoldkanaal” towards the River Westerschelde in The Netherlands. We investigated a large and a small screw pump from 9/30/2009 until 12/09/2009. 2-The longitudinally connected Rivers Avrijevaart and Burggravenstroom are typical examples of a polder water. During and after (heavy) rainfall the excess of water is pumped out of both watercourses into the Ghent-Terneuzen Canal. The pumping station has 7 propeller pumps which have a rotation speed of 8 rotations per second. Total discharge capacity of the station is 8 m³s-1. One-way valves underneath the building prevent the water from flowing back into the polder but also block upstream fish migration. The Research Institute for Nature and Forest investigated the natural downstream fish migration through the pumping station. A 40 m long net was mounted on the outlet of one of the propeller pumps (1,6 m³s-1). Objectives were to find out in what state (dead or alive)fish pass these fast rotating propellers and what kind of injuries they sustain. Moreover we were interested in the timing and magnitude of downstream migrating European eel (Anguilla Anguilla) and their survival rate. Between August and November 2008 we caught 14 species and more than 4.000 fish. [1] Fyke nets installed on the outflow of the pumps collected all pumped fish. Generally, the fyke nets were emptied three times a week. All fish were measured, weighted and scored upon possible damage. Eels were also measured to define their silvering stage.We caught 1922 fish in total in both fyke nets (1024 at the end of the large screw and 898 at the end of the small one). [2] A 40 m long net was mounted on the outlet of one of the propeller pumps (1,6 m³s-1). David Buysse 0000-0002-4437-5678 author VMM - Afdeling Operationeel Waterbeheer 2019-01-25T05:03:40.916+01:00 dataset Buysse D, Brosens D (2025). Fish damage at pump stations. Version 1.15. Research Institute for Nature and Forest (INBO). Samplingevent dataset. https://doi.org/10.15468/hjh68q Baeyens R, Buysse D, Stevens M, Mouton A, Gelaude E, Martens S, Jacobs Y, Coeck J (2011) Onderzoek naar de verwondingen bij vissen veroorzaakt door een gemaal met vijzels: Isabellagemaal (Boekhoute). Rapporten van het Instituut voor Natuur- en Bosonderzoek 2011 (INBO.R.2011.7). Instituut voor Natuur- en Bosonderzoek, Brussel. D/2011/3241/095 https://ipt.inbo.be/logo.do?r=visschade-occurrences 5d06d34c-f74d-461e-8d8b-c3351beb0db8/v1.15.xml