A5056999674- Marine and fisheries research
- Fish Ecology and Management Studies
- Marine Bivalve and Aquaculture Studies
- Coastal and Marine Management
- Isotope Analysis in Ecology
- Genetic diversity and population structure
- Marine and environmental studies
- Coral and Marine Ecosystems Studies
- Genetic and phenotypic traits in livestock
- Marine Biology and Ecology Research
- Marine and coastal ecosystems
- Food Waste Reduction and Sustainability
- Identification and Quantification in Food
- Wildlife Ecology and Conservation
- Food Industry and Aquatic Biology
- Fish Biology and Ecology Studies
- Animal Behavior and Reproduction
- Environmental Science and Water Management
- Oceanographic and Atmospheric Processes
- Marine and coastal plant biology
- Research in Social Sciences
- Arctic and Antarctic ice dynamics
- Scientific Research and Discoveries
- Technology Assessment and Management
- Aquaculture Nutrition and Growth
Swedish University of Agricultural Sciences
2013-2023
County Administrative Board
2023
Institute of Food Safety, Animal Health and Environment “BIOR”
2016
Nature Research Centre
2016
University of Tartu
2016
National Marine Fisheries Research Institute
2016
Swedish National Board of Fisheries
2011
Stockholm University
2011
Uppsala University
2003-2007
Summary Seagrass and seaweed habitats constitute hotspots for diversity ecosystem services in coastal ecosystems. These are subject to anthropogenic pressures, of which eutrophication is one major stressor. Eutrophication favours fast‐growing ephemeral algae over perennial macroalgae seagrasses, causing habitat degradation. However, changes top‐down control, caused by, example, overfishing, may also have negative impacts on such by decreasing grazer control algae. Meanwhile, systematic...
Among-individual diet variation is common in natural populations and may occur at any trophic level within a food web. Yet, little known about its among levels how such could affect phenotypic divergence populations. In this study we investigate the relationships between position (the population's range average) among-individual variation. We test for individuals across size classes of Eurasian perch (Perca fluviatilis), widespread predatory freshwater fish that undergoes ontogenetic niche...
The northern pike (Esox lucius) is an iconic predatory fish species of significant recreational value and ecological role in the Baltic Sea. Some earlier studies indicate local declines region, but a thorough spatial evaluation regional population trends Sea lacking. In this study, we collate data from 59 unique time-series fisheries landings fishery-independent monitoring programs to address temporal populations since mid-2000′s eight countries surrounding common analysis considering all...
Abstract Olsson, J., Bergström, L., and Gårdmark, A. 2012. Abiotic drivers of coastal fish community change during four decades in the Baltic Sea – ICES Journal Marine Science, 69: 961–970. Evidence for long-term marine ecosystems is increasing worldwide. Coastal areas harbour socio-economically ecologically most vital aquatic ecosystems, but are under anthropogenic pressure. Little known, however, about how environmental perturbations affect development systems. In this paper, datasets...
Intraguild predation interactions make fish communities prone to exhibit alternative stable states with either piscivore or prey dominance. In the Baltic Sea, local declines of coastal piscivores like perch (Perca fluviatilis) have been observed coincide high densities sticklebacks (Gasterosteus aculeatus). Mechanisms behind this shift between and stickleback dominance were studied both experimentally in field. Results showed that by has a strong negative effect on larvae survival, but...
Coastal predatory fish are of key importance for the provisioning ecosystem services in Baltic Sea. Worldwide, however, there has been a general and sharp decline populations, turn threatening viability function marine ecosystems. On basis literature, past (data until 2000s) current early mid 2010s) trends abundance coastal Sea reviewed this paper. Potentially important impacting factors behind temporal development populations measures to strengthen restore them also discussed. Available...
Abstract Improving the health of coastal and open sea marine ecosystems represents a substantial challenge for sustainable resource management, since it requires balancing human benefits impacts on ocean. This is often exacerbated by incomplete knowledge lack tools that measure ocean ecosystem in way allows consistent monitoring progress towards predefined management targets. The such limits capabilities to enact enforce effective governance. We introduce Baltic Health Index (BHI) as...
Abstract Under rapid environmental change, opportunistic species may exhibit dramatic increases in response to the altered conditions, and can turn have large impacts on ecosystem. One such is three-spined stickleback (Gasterosteus aculeatus), which has shown substantial several aquatic systems recent decades. Here, we review population development of Baltic Sea, a brackish water ecosystem subject change. Current evidence points predatory release being central driver observed some areas,...
The rate at which biological diversity is altered on both land and in the sea, makes temporal community development a critical fundamental part of understanding global change. With advancements trait-based approaches, focus impact change has shifted towards its potential effects functioning ecosystems. Our mechanistic ability to predict still impeded by lack knowledge long-term functional dynamics that span several trophic levels. To address this, we assessed species richness multiple...
Resource polymorphisms, intraspecific variation in morphology due to differential resource use, are common across a wide range of animal taxa. The focus studies such polymorphisms has been on external morphology, but the use food resources could also influence other phenotypic traits as digestive performance. In present study, we experimentally demonstrate that Eurasian perch (Perca fluviatilis L.) display adaptive plasticity gut length when exposed different types. Perch fed less digestible...
The turnover and distribution of energy nutrients in food webs is influenced by consumer stoichiometry. Although the stoichiometry heterotrophs generally considered to vary only little, there may be intraspecific variation due factors such as habitat, resources, ontogeny size. We examined Eurasian perch Perca fluviatilis stoichiometry, a common species that exhibits habitat resource specialization, ontogenetic niche shifts large size range. This study investigated elemental wide range from...
In this study, the genetic variation of perch Perca fluviatilis from 18 different sites along Swedish coast Baltic Sea was assessed. There a relative strong support for isolation by distance and results suggest an overall departure panmixia. The level divergence moderate (global FST = 0·04) indications differences in population structure between two major basins (central Gulf Bothnia) were found. higher differentiation central compared to Bothnia, that stretches deep water might act as...
Global warming may affect most organisms and their interactions. Theory simple mesocosm experiments suggest that consumer top–down control over primary producer biomass should strengthen with warming, since respiration increases faster than plant photosynthesis. However, these predictions have so far not been tested on natural communities experienced many generations. Natural systems display a higher diversity, heterogeneity complexity mesocosms, which could alter predicted effects of...
Abstract Declines in predatory fish combination with the impact of climate change and eutrophication have caused planktivores, including three-spined stickleback (Gasterosteus aculeatus), to increase dramatically parts Baltic Sea. Resulting impacts on coastal offshore foodwebs been observed, highlighting need for increased knowledge its population characteristics. In this article, we quantify abundance, biomass, size structure, spatial distribution using data from Swedish Finnish...
Ecological indicators are increasingly used in marine and freshwater management but only few developed towards full operationalization with known patterns of variability documented responses to natural anthropogenic environmental drivers. Here, we evaluate potential sources indicator at two different spatial scales three coastal fish-based status the Baltic Sea; abundance cyprinids, perch proportion larger perch. The study was performed on a data set covering 41 monitoring areas subject...
Summary Indicators of ecosystem status are increasing importance for management. Many studies infer associations between the environment and fish communities, but little is known about how community indicators related to temporal variation in anthropogenic hydroclimate drivers, on what geographical scale, these representative. Here, we investigate spatial synchrony seven coastal among eleven reference sites 2002–2014 Baltic Sea. At three sites, study covariation drivers over 25 years. The...