David Aldvén
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View article: Investigating Steady-State Interpolation and Transient Hydraulic Modelling to Evaluate European Grayling Habitat in a Hydropeaking River
Investigating Steady-State Interpolation and Transient Hydraulic Modelling to Evaluate European Grayling Habitat in a Hydropeaking River Open
Renewable energy sources such as hydropower are important to reduce the global emissions. Hydropower, however, comes with other environmental challenges by altering the ecological conditions in the rivers. Hydraulic models connected with f…
View article: Downstream guidance performance of a bubble curtain and a net barrier for the European eel, Anguilla anguilla, in an experimental flume
Downstream guidance performance of a bubble curtain and a net barrier for the European eel, Anguilla anguilla, in an experimental flume Open
Populations of the European eel (Anguilla anguilla), a critically endangered species, have been severely impacted by migration barriers, as losses due to turbine-induced mortality can be substantial. To prevent eels from entering turbines,…
View article: An Overview of Kelt Migration in Regulated Rivers: Status, Knowledge Gaps, and Future Directions Toward Safe Downstream Passage at Hydropower Facilities
An Overview of Kelt Migration in Regulated Rivers: Status, Knowledge Gaps, and Future Directions Toward Safe Downstream Passage at Hydropower Facilities Open
Atlantic salmon (Salmo salar), brown trout (Salmo trutta), and steelhead trout (Oncorhynchus mykiss) kelts have important conservation value for population resilience. Nonetheless, relative to other salmonid life-stages, knowledge on their…
View article: Downstream passage performance of silver eel at an angled rack: effects of behavior and morphology
Downstream passage performance of silver eel at an angled rack: effects of behavior and morphology Open
The European eel is critically endangered due to heavy impact of anthropogenic factors, such as habitat fragmentation, overexploitation and climate change. During downstream migration, silver eels may encounter hydropower plants, which oft…
View article: Atlantic salmon in regulated rivers: Understanding river management through the ecosystem services lens
Atlantic salmon in regulated rivers: Understanding river management through the ecosystem services lens Open
Known as the “king of fishes,” the Atlantic salmon ( Salmo salar , Salmonidae) is an iconic freshwater species whose contribution to human well‐being has long been recognized, as have widespread declines in its abundance, partly due to riv…
View article: Guiding migrating salmonid smolts: Experimentally assessing the performance of angled and inclined screens with varying gap widths
Guiding migrating salmonid smolts: Experimentally assessing the performance of angled and inclined screens with varying gap widths Open
The loss of longitudinal connectivity in regulated rivers, both up- and downstream, has been detrimental for biodiversity worldwide. While progress has been made regarding upstream fish passage solutions, many questions remain unanswered r…
View article: A Contraction Based Solution for the Improvement of Fish Ladder Attraction Flow
A Contraction Based Solution for the Improvement of Fish Ladder Attraction Flow Open
A new, potentially cost efficient, concept for improving the attraction flow to a fish ladder has been investigated in a case study. For the upstream migrating Atlantic salmon to reach the fish ladder and by-pass the case study hydropower …
View article: Social behaviour of European grayling before and after flow peaks in restored and unrestored habitats
Social behaviour of European grayling before and after flow peaks in restored and unrestored habitats Open
Cost‐effective implementation of fish‐friendly hydropower flow operation and habitat restoration measures require an understanding of their effects on fitness‐related behaviours of stream fish. Here, we investigated how changes in flow and…
View article: Northern European <i>Salmo trutta</i> (L.) populations are genetically divergent across geographical regions and environmental gradients
Northern European <i>Salmo trutta</i> (L.) populations are genetically divergent across geographical regions and environmental gradients Open
The salmonid fish Brown trout is iconic as a model for the application of conservation genetics to understand and manage local interspecific variation. However, there is still scant information about relationships between local and large‐s…
View article: Laboratory captivity can affect scores of metabolic rates and activity in wild brown trout
Laboratory captivity can affect scores of metabolic rates and activity in wild brown trout Open
Phenotypic scoring of wild animals under standardized laboratory conditions is important as it allows field ecologists and evolutionary biologists to understand the development and maintenance of interindividual differences in plastic trai…
View article: Energy efficient fish attraction
Energy efficient fish attraction Open
Fish migration past a hydro power plant (HPP) requires not only flow in the actual fish passage (e.g. fish ladder) but also sufficient water to attract the fish to the entrance. Such attraction water is typically created by spilling water …
View article: Co‐existence with non‐native brook trout breaks down the integration of phenotypic traits in brown trout parr
Co‐existence with non‐native brook trout breaks down the integration of phenotypic traits in brown trout parr Open
Summary A phenotypic syndrome refers to complex patterns of integration among functionally related traits in an organism that defines how the organism interacts with its environment and sustains itself. Human‐induced biological invasions h…
View article: Migration in anadromous brown trout
Migration in anadromous brown trout Open
This thesis investigates the anadromous migration of brown trout (Salmo trutta) with the overall aim to improve stock management within the region. Several field studies were conducted in different streams and coastal areas on the west coa…
View article: Linking lab activity with growth and movement in the wild: explaining pace-of-life in a trout stream
Linking lab activity with growth and movement in the wild: explaining pace-of-life in a trout stream Open
Theory suggests that consistent individual differences in activity are linked to life history where high activity is associated with rapid growth, high dispersal tendency, and low survival (the pace-of-life syndrome hypothesis). We address…
View article: data_Sten2014
data_Sten2014 Open
Suporting data for the manuscript submitted to Ecology
View article: data_Sten2014
data_Sten2014 Open
Suporting data for the manuscript submitted to Ecology
View article: data_Sten2014
data_Sten2014 Open
Suporting data fof the manuscript submitted to Proc B