Twan Stoffers

Twan Stoffers
Wageningen University & Research | WUR · Department of Aquaculture and Fisheries

MSc

About

10
Publications
1,125
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34
Citations
Introduction
I study the functioning of restored floodplains in the Netherlands as nursery area for riverine fishes. I work on topics ranging from evaluating ecological efficacy of restored floodplains over time, studying food availability and gut contents of juvenile fish, to extensive modelling of optimal environmental characteristics of floodplains for larval and juvenile fish. My ambition is to support, stimulate and create innovative projects that stimulates freshwater and marine conservation.

Publications

Publications (10)
Article
Full-text available
The ecological efficacy of river restoration projects may change over time, resulting in the loss of their ecological function for targeted species. The goal of this study was to evaluate the rheophilic nursery function of restored floodplain channels over time, by analysing 30 years of monitoring data from 12 restoration projects in the lower rive...
Article
Full-text available
Live-bearing fish start hunting for mobile prey within hours after birth, an example of extreme precociality. Because prenatal, in utero, development of this behaviour is constrained by the lack of free-swimming sensory-motor interactions, immediate success after birth depends on innate, evolutionarily acquired patterns. Optimal performance however...
Article
Full-text available
With a sixth mass extinction looming and freshwater biodiversity declining at unprecedented rates, evaluating ecological efficacy of river restoration efforts is critical in combatting global biodiversity loss. Here, we present a comprehensive study of the functioning for fishes of 46 river restoration projects in the river Rhine, one of the world'...
Article
Om de biodiversiteit van riviervis te herstellen moeten uiterwaarden onder meer veel verschillende typen vishabitats bevatten. Dat blijkt uit grootschalig onderzoek van Wageningen University & Research in samenwerking met Rijkswaterstaat. Daarnaast bepaalt de mate waarin de uiterwaarden zijn verbonden met de rivier het succes als kraamkamer.
Article
Full-text available
The large-scale degradation of riparian ecotones and of the connectivity between rivers and their floodplains has resulted in a drastic decline of rheophilic fish populations in European temperate lowland rivers. Recent river restoration projects have had variable success in effectively restoring these fish populations. Knowledge on nursery habitat...
Article
Understanding how reef-associated sharks utilise coastal reef habitats throughout their ontogeny is essential for their effective management. In this study, we assessed the distribution of sharks in the northern Caribbean Netherlands (Saba, Saba Bank and St Eustatius) and ontogenetic shifts in habitat and depth use of the 2 most observed species: C...
Article
Full-text available
Het natuurherstel langs onze rivieren is goed voor jonge riviervis maar begint na gemiddeld vijftien jaar zijn effectiviteit te verliezen. Dat blijkt uit onderzoek van Wageningen Universiteit in samenwerking met Rijkswaterstaat naar de ontwikkeling van soortenrijkdom en het aantal typische riviervissen. Om deze natuurwaarden van herstelprojecten te...
Article
Sinds de jaren negentig is veel geïnvesteerd in het herstellen van de ecologische kwaliteit van de grote rivieren. Een van de maatregelen was het herstellen of aanleggen van nevengeulen. Riviervissen als winde, sneep, serpeling en barbeel profiteren hiervan. Bijna dertig jaar later hebben wij nogmaals onderzoek gedaan naar het nut en effect van her...

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Projects

Project (1)
Project
The extensive modifications in the river Rhine resulted in the severe decline, or even loss, of diadromous fish species typical for European lowland river systems, such as Atlantic salmon (Salmo salar) and European sturgeon (Acipenser sturio). In addition, the numbers of potamodromous, rheophilic species, such as European barbel (Barbus barbus), nase (Chondrostoma nasus) and dace (Leuciscus leuciscus) have significantly reduced (Reeze et al., 2017). Since the 1990s, authorities in the Netherlands have reconstructed numerous floodplains to improve the ecological quality of the river systems. This resulted in positive changes to water quality and an increase in natural habitats, but not to the expected recovery of rheophilic fish species. In this project PhD-candidate Twan Stoffers investigates the relationships between habitat dynamics relates to fish recruitment.