Ulf Bergström
Biographic Data
| ID | 6015310 |
|---|---|
| NAME | Ulf Bergström |
| GIVEN NAMES | Ulf |
| FAMILY NAME | Bergström |
| SIGNATURE | BERGSTRÖM U |
| AFFILIATIONS | Swedish University of Agricultural Sciences |
| ORCID | 0000-0002-5478-0634 |
| VERIFIED | Yes |
| TOTAL WORKS | 14 |
| TOTAL CITATIONS | 23 |
| WORKS AS AUTHOR | 14 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2011 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 3 |
Beyond Asking the Right Questions
Accurate information about anglers’ motivations, satisfaction, and fishing behavior is needed to design effective recreational fisheries management. This study used a comprehensive survey of Swedish anglers to explore the risk for common sampling strategies and survey response groupings to introduce significant error or biases that impact the interpretation of data. Angler motivation and satisfaction differed between anglers based on avidity, typ…
Fish community responses to restoration of a eutrophic coastal bay
Interest in coastal restoration measures is increasing, but information about subsequent ecosystem recovery processes is limited. In Björnöfjärden on the Baltic Sea coast, Stockholm archipelago, a pioneering case study to reduce coastal eutrophication led to improvements and initially halved phosphorus levels. Here, we evaluate the effects of the restoration on the local fish assemblage over one decade after the measures. The study gives a unique…
Rapid re-establishment of top-down control at a no-take artificial reef
Establishment of artificial reefs and no-take areas are management measures available for restoring deteriorated marine ecosystems, compensating for habitat loss and strengthening harvested populations. Following the establishment of no-take artificial reefs in western Sweden to compensate for hard bottoms lost to a shipping lane, we detected rapid positive effects on crustaceans and demersal fish compared to fished reference areas. The relative …
Reported Direct Speech in the Hebrew Bible and in the Andersen-Forbes Morphology and Syntax Database
The article outlines the phenomenon of direct reported speech in the Hebrew Bible and presents some of the guiding principles for the recently undertaken revision of the speech level markup in the Andersen-Forbes Morphology and Syntax Database. For the revised version of the markup, a higher number of unusual forms of direct speech has been included, such as implied direct speech and direct speech introduced by quotative frames without verbs of s…
Ecological connectivity of the marine protected area network in the Baltic Sea, Kattegat and Skagerrak
Marine protected areas (MPAs) have become a key component of conservation and fisheries management to alleviate anthropogenic pressures. For MPA networks to efficiently promote persistence and recovery of populations, ecological connectivity, i.e. dispersal and movement of organisms and material across ecosystems, needs to be taken into account. To improve the ecological coherence of MPA networks, there is hence a need to evaluate the connectivit…
Benefits and costs of two temporary no-take zones
Predicting the effects of eutrophication mitigation on predatory fish biomass and the value of recreational fisheries
Improving water clarity is a core objective for eutrophication management in the Baltic Sea, but may influence fisheries via effects on fish habitat suitability. We apply an ensemble of species distribution models coupled with habitat productivity functions and willingness-to-pay estimates to assess these effects for two coastal predatory fish species, European perch ( Perca fluviatilis ) and pikeperch ( Sander lucioperca ). The models predicted …
Relative impacts of fishing and eutrophication on coastal fish assessed by comparing a no-take area with an environmental gradient
Understanding the relative impacts of pressures on coastal ecosystems is central for implementing relevant measures to reach environmental management objectives. Here, survey data on the species and size composition of coastal fish are evaluated in relation to fishing and eutrophication, by comparing a long-standing no-take area to an environmental gradient in the Baltic Sea. The no-take area represents an intermediate eutrophication level, but t…
Recreational boating degrades vegetation important for fish recruitment
Recreational boating increases globally and associated moorings are often placed in vegetated habitats important for fish recruitment. Meanwhile, assessments of the effects of boating on vegetation, and potential effects on associated fish assemblages are rare. Here, we analysed (i) the effect of small-boat marinas on vegetation structure, and (ii) juvenile fish abundance in relation to vegetation cover in shallow wave-sheltered coastal inlets. W…
Declining coastal piscivore populations in the Baltic Sea
Intraguild predation interactions make fish communities prone to exhibit alternative stable states with either piscivore or prey fish dominance. In the Baltic Sea, local declines of coastal piscivores like perch (Perca fluviatilis) have been observed to coincide with high densities of sticklebacks (Gasterosteus aculeatus). Mechanisms behind this shift between piscivore and stickleback dominance were studied both experimentally and in field. Resul…
Shoreline development and degradation of coastal fish reproduction habitats
Testing the Potential for Predictive Modeling and Mapping and Extending Its Use as a Tool for Evaluating Management Scenarios and Economic Valuation in the Baltic Sea (PREHAB)
We evaluated performance of species distribution models for predictive mapping, and how models can be used to integrate human pressures into ecological and economic assessments. A selection of 77 biological variables (species, groups of species, and measures of biodiversity) across the Baltic Sea were modeled. Differences among methods, areas, predictor, and response variables were evaluated. Several methods successfully predicted abundance and o…
Pikeperch (Sander lucioperca (L.)) in Decline
Effects of Altered Offshore Food Webs on Coastal Ecosystems Emphasize the Need for Cross-Ecosystem Management
Effects of Altered Offshore Food Webs on Coastal Ecosystems Emphasize the Need for Cross-Ecosystem Management
Relative impacts of fishing and eutrophication on coastal fish assessed by comparing a no-take area with an environmental gradient
Understanding the relative impacts of pressures on coastal ecosystems is central for implementing relevant measures to reach environmental management objectives. Here, survey data on the species and size composition of coastal fish are evaluated in relation to fishing and eutrophication, by comparing a long-standing no-take area to an environmental gradient in the Baltic Sea. The no-take area represents an intermediate eutrophication level, but t…
Recreational boating degrades vegetation important for fish recruitment
Recreational boating increases globally and associated moorings are often placed in vegetated habitats important for fish recruitment. Meanwhile, assessments of the effects of boating on vegetation, and potential effects on associated fish assemblages are rare. Here, we analysed (i) the effect of small-boat marinas on vegetation structure, and (ii) juvenile fish abundance in relation to vegetation cover in shallow wave-sheltered coastal inlets. W…
Shoreline development and degradation of coastal fish reproduction habitats
Testing the Potential for Predictive Modeling and Mapping and Extending Its Use as a Tool for Evaluating Management Scenarios and Economic Valuation in the Baltic Sea (PREHAB)
We evaluated performance of species distribution models for predictive mapping, and how models can be used to integrate human pressures into ecological and economic assessments. A selection of 77 biological variables (species, groups of species, and measures of biodiversity) across the Baltic Sea were modeled. Differences among methods, areas, predictor, and response variables were evaluated. Several methods successfully predicted abundance and o…
Pikeperch (Sander lucioperca (L.)) in Decline
Ecological connectivity of the marine protected area network in the Baltic Sea, Kattegat and Skagerrak
Marine protected areas (MPAs) have become a key component of conservation and fisheries management to alleviate anthropogenic pressures. For MPA networks to efficiently promote persistence and recovery of populations, ecological connectivity, i.e. dispersal and movement of organisms and material across ecosystems, needs to be taken into account. To improve the ecological coherence of MPA networks, there is hence a need to evaluate the connectivit…
Predicting the effects of eutrophication mitigation on predatory fish biomass and the value of recreational fisheries
Improving water clarity is a core objective for eutrophication management in the Baltic Sea, but may influence fisheries via effects on fish habitat suitability. We apply an ensemble of species distribution models coupled with habitat productivity functions and willingness-to-pay estimates to assess these effects for two coastal predatory fish species, European perch ( Perca fluviatilis ) and pikeperch ( Sander lucioperca ). The models predicted …
Declining coastal piscivore populations in the Baltic Sea
Intraguild predation interactions make fish communities prone to exhibit alternative stable states with either piscivore or prey fish dominance. In the Baltic Sea, local declines of coastal piscivores like perch (Perca fluviatilis) have been observed to coincide with high densities of sticklebacks (Gasterosteus aculeatus). Mechanisms behind this shift between piscivore and stickleback dominance were studied both experimentally and in field. Resul…
Effects of Altered Offshore Food Webs on Coastal Ecosystems Emphasize the Need for Cross-Ecosystem Management
Shoreline development and degradation of coastal fish reproduction habitats
Testing the Potential for Predictive Modeling and Mapping and Extending Its Use as a Tool for Evaluating Management Scenarios and Economic Valuation in the Baltic Sea (PREHAB)
We evaluated performance of species distribution models for predictive mapping, and how models can be used to integrate human pressures into ecological and economic assessments. A selection of 77 biological variables (species, groups of species, and measures of biodiversity) across the Baltic Sea were modeled. Differences among methods, areas, predictor, and response variables were evaluated. Several methods successfully predicted abundance and o…
Pikeperch (Sander lucioperca (L.)) in Decline
Declining coastal piscivore populations in the Baltic Sea
Intraguild predation interactions make fish communities prone to exhibit alternative stable states with either piscivore or prey fish dominance. In the Baltic Sea, local declines of coastal piscivores like perch (Perca fluviatilis) have been observed to coincide with high densities of sticklebacks (Gasterosteus aculeatus). Mechanisms behind this shift between piscivore and stickleback dominance were studied both experimentally and in field. Resul…
Relative impacts of fishing and eutrophication on coastal fish assessed by comparing a no-take area with an environmental gradient
Understanding the relative impacts of pressures on coastal ecosystems is central for implementing relevant measures to reach environmental management objectives. Here, survey data on the species and size composition of coastal fish are evaluated in relation to fishing and eutrophication, by comparing a long-standing no-take area to an environmental gradient in the Baltic Sea. The no-take area represents an intermediate eutrophication level, but t…
Recreational boating degrades vegetation important for fish recruitment
Recreational boating increases globally and associated moorings are often placed in vegetated habitats important for fish recruitment. Meanwhile, assessments of the effects of boating on vegetation, and potential effects on associated fish assemblages are rare. Here, we analysed (i) the effect of small-boat marinas on vegetation structure, and (ii) juvenile fish abundance in relation to vegetation cover in shallow wave-sheltered coastal inlets. W…
Benefits and costs of two temporary no-take zones
Predicting the effects of eutrophication mitigation on predatory fish biomass and the value of recreational fisheries
Improving water clarity is a core objective for eutrophication management in the Baltic Sea, but may influence fisheries via effects on fish habitat suitability. We apply an ensemble of species distribution models coupled with habitat productivity functions and willingness-to-pay estimates to assess these effects for two coastal predatory fish species, European perch ( Perca fluviatilis ) and pikeperch ( Sander lucioperca ). The models predicted …
Reported Direct Speech in the Hebrew Bible and in the Andersen-Forbes Morphology and Syntax Database
The article outlines the phenomenon of direct reported speech in the Hebrew Bible and presents some of the guiding principles for the recently undertaken revision of the speech level markup in the Andersen-Forbes Morphology and Syntax Database. For the revised version of the markup, a higher number of unusual forms of direct speech has been included, such as implied direct speech and direct speech introduced by quotative frames without verbs of s…
Ecological connectivity of the marine protected area network in the Baltic Sea, Kattegat and Skagerrak
Marine protected areas (MPAs) have become a key component of conservation and fisheries management to alleviate anthropogenic pressures. For MPA networks to efficiently promote persistence and recovery of populations, ecological connectivity, i.e. dispersal and movement of organisms and material across ecosystems, needs to be taken into account. To improve the ecological coherence of MPA networks, there is hence a need to evaluate the connectivit…
Rapid re-establishment of top-down control at a no-take artificial reef
Establishment of artificial reefs and no-take areas are management measures available for restoring deteriorated marine ecosystems, compensating for habitat loss and strengthening harvested populations. Following the establishment of no-take artificial reefs in western Sweden to compensate for hard bottoms lost to a shipping lane, we detected rapid positive effects on crustaceans and demersal fish compared to fished reference areas. The relative …
Fish community responses to restoration of a eutrophic coastal bay
Interest in coastal restoration measures is increasing, but information about subsequent ecosystem recovery processes is limited. In Björnöfjärden on the Baltic Sea coast, Stockholm archipelago, a pioneering case study to reduce coastal eutrophication led to improvements and initially halved phosphorus levels. Here, we evaluate the effects of the restoration on the local fish assemblage over one decade after the measures. The study gives a unique…
Beyond Asking the Right Questions
Accurate information about anglers’ motivations, satisfaction, and fishing behavior is needed to design effective recreational fisheries management. This study used a comprehensive survey of Swedish anglers to explore the risk for common sampling strategies and survey response groupings to introduce significant error or biases that impact the interpretation of data. Angler motivation and satisfaction differed between anglers based on avidity, typ…
Ecology (12 works) · Fishery (12 works) · Marine and fisheries research (12 works) · Biology (11 works) · Ecology (11 works) · Environmental Science (7 works) · Geography (7 works) · Fish (6 works) · Fish <Actinopterygii> (6 works) · Fish Ecology and Management Studies (6 works)