A5073659830- Marine and coastal plant biology
- Marine Biology and Ecology Research
- Coastal wetland ecosystem dynamics
- Peatlands and Wetlands Ecology
- Marine and fisheries research
- Coastal and Marine Management
- Climate change and permafrost
- Ecology and biodiversity studies
- Food Industry and Aquatic Biology
- Marine Bivalve and Aquaculture Studies
- Aquatic Invertebrate Ecology and Behavior
- Geology and Paleoclimatology Research
- Geological Studies and Exploration
- Fire effects on ecosystems
- Botany and Plant Ecology Studies
- Mercury impact and mitigation studies
- Land Use and Ecosystem Services
- Tailings Management and Properties
- Bryophyte Studies and Records
- Marine animal studies overview
- Marine and Offshore Engineering Studies
- Arctic and Russian Policy Studies
- Indigenous Studies and Ecology
- Integrated Water Resources Management
- Lichen and fungal ecology
Norwegian Institute for Water Research
2013-2023
University of Oslo
2011-2019
Kelps, seaweeds and seagrasses provide important ecosystem services in coastal areas, loss of these macrophytes is a global concern. Recent surveys have documented severe declines populations the dominant kelp species, S accharina latissima , along south coast Norway. . cold‐temperate increasing seawater temperature has been suggested as one major causes decline. Several studies shown that can acclimate to wide range temperatures. However, local adaptations may render extrapolation existing...
On the Skagerrak coast kelp Saccharina latissima has suffered severe stand reductions over last decade, resulting in loss of important habitats. In present study, healthy plants were transplanted into four deforested areas and their patterns growth, reproduction, survival monitored through subsequent seasons. Our main objective was to establish whether able grow mature areas. We observed normal growth maturation at all study sites. However, heavy fouling by epiphytes occurred each summer,...
Around year 2000, sugar kelp (Saccharina latissima) forests were observed to disappear in southern parts of Norway, being replaced by mats turf algae (i.e. filamentous ephemeral algae) loaded with sediments. About 80% the stations on Skagerrak coast and about 40% North Sea affected. Various types S. latissima a discontinuous pattern. This large spatial scale event was reported as possible irrevocable regime shift, not caused single factor but related multiple stressors where eutrophication...
Global coastal ecosystems are under accelerating pressure from human activities and climate change. In this study we explore a long-term time series (mostly 1990–2016) major Norwegian rivers, together with the Skagerrak coast. The aims to: 1) analyse trends in riverine loadings to Skagerrak, changes water quality pelagic benthic species composition, 2) describe relationships between drivers (eutrophication darkening) community structure of communities. Riverine discharge transport increased...
To understand the restoration potential of degraded habitats, it is important to know key processes and habitat features that allow for recovery after disturbance. As part EU (Horizon 2020) funded MERCES project, a group European experts compiled assessed current knowledge, from both past ongoing efforts, within Mediterranean Sea, Baltic North-East Atlantic Ocean. The aim was provide an expert judgement how different could impact success enhance marine habitats. A set biological ecological...
A growing need for food is causing increased interest seaweed farming globally. This requires the knowledge of industry’s effects on marine environment. We therefore aimed to explore communities hosted by a kelp farm compared that wild forests. The study was performed in mid-western Norway. Kelp associated fauna were collected from farmed ( Saccharina latissima and Alaria esculenta ), forests S. , A. Laminaria hyperborea traps water column. showed had lower taxa abundance richness...
Abstract As different macrophyte habitats house distributions of invertebrates, we questioned if differences in the composition fish these also could be identified. Additionally, addressed question communities affected a few years after sugar kelp beds had shifted to degraded turf habitats. Gill-nets mesh sizes were used catch then four dominating subtidal habitats; species Laminaria hyperborea and Saccharina latissima, algae, seagrass Zostera marina. Each habitat was sampled South Norway,...
The lack of recovery in Norwegian populations the kelp Saccharina latissima (Linnaeus) C. E. Lane, Mayes, Druehl & G. W. Saunders after a large-scale disturbance that occurred sometime between late 1990s and early 2000s has raised considerable concerns. Kelp forests are areas high production serve as habitats for numerous species, their continued absence may represent loss an entire ecosystem. Some S. remain scattered patches within affected areas, but today, most completely devoid kelp....
Abstract The processes limiting the population recovery of kelp Saccharina latissima after recent large‐scale loss from south coast Norway are poorly understood. Previous investigations do, however, suggest that impacts biotic interactions (epibiosis and competition) increased water turbidity important. We investigated depth‐related patterns growth, epibiosis, mortality in two sample populations kelp, southwest Norway. were performed over a period seven months, crossed translocational study,...
Kelp forests are productive coastal ecosystems that provide a range of ecosystem services. Mapping the distribution and area occupied by kelp is critical step to identify their functions services, including role in carbon cycle, detect changes distribution. We compiled quantitative data dominant genera Laminaria Saccharina across Nordic region, allowing us separate (areas with dense or moderately coverage) from occurrences single few individuals. By fitting boosted regression trees data, we...