A5073994944- Marine and fisheries research
- Marine and coastal ecosystems
- Marine Biology and Ecology Research
- Coral and Marine Ecosystems Studies
- Oceanographic and Atmospheric Processes
- Fish Ecology and Management Studies
- Ocean Acidification Effects and Responses
- Isotope Analysis in Ecology
- Marine and coastal plant biology
- Arctic and Antarctic ice dynamics
- Peatlands and Wetlands Ecology
- Coastal and Marine Management
- Coastal wetland ecosystem dynamics
- Marine Bivalve and Aquaculture Studies
- Remote Sensing and LiDAR Applications
- Innovation, Technology, and Society
- Aquatic Invertebrate Ecology and Behavior
- Cephalopods and Marine Biology
- Vibrio bacteria research studies
- Aquaculture disease management and microbiota
- Interdisciplinary Research and Collaboration
- Water Quality Monitoring Technologies
- Marine Invertebrate Physiology and Ecology
- Fire effects on ecosystems
- Marine animal studies overview
Norwegian Institute for Water Research
2020-2025
University of Oslo
2013-2021
Woods Hole Oceanographic Institution
2017-2020
Universidade dos Açores
2012-2013
Variations in physical conditions caused by climate change are likely to have large influences on marine organisms, including phytoplankton. Here, we investigated associations between satellite-derived chlorophyll a data from the Barents Sea and 2 key abiotic factors: sea surface temperature sea-ice concentration. Specifically, how variability, through measured factors, associated with phytoplankton phenology 1998 2014. Associations bloom dynamics differed depending area. The spring occurred...
In the last twenty years, several global targets for protection of marine biodiversity have been adopted but failed. The Convention on Biological Diversity (CBD) aims at preserving 10% all biomes by 2020. For achieving this goal, ecologically or biologically significant areas (EBSA) to be identified in biogeographic regions. However, methodologies identifying best suitable are still agreed. Here, we propose a framework applying CBD criteria locate potential seamount based information...
Predator-mediated apparent competition is an indirect negative interaction between two prey species mediated by a shared predator. Quantifying such ecosystem effects methodologically challenging but important for understanding functioning. Still, there are few examples of from pelagic marine environments. Using state-space statistical modeling, we here provide evidence dominant zooplankton groups in large ecosystem, i.e., krill and copepods the Barents Sea. This effect positive association...
ABSTRACT Kelp forests are dynamic coastal habitats that generate large amounts of carbon‐rich detritus. The fate this detritus is largely unknown and considered a missing link in global carbon budgets. can serve as food for benthic invertebrates pelagic invertebrate larvae, but we know close to nothing about the role kelp other zooplankton. We conducted feeding experiments test if highly abundant copepod Calanus finmarchicus feed on fragments two dominant species, Saccharina latissima...
Abstract Transport with ocean currents affects the spatial distribution and survival of fish eggs larvae thereby population connectivity. Biophysical models are commonly used to understand these dynamics. Advancements such as implementing vertical swimming behaviour higher resolution circulation known improve model performance, however, relative importance vs. is elusive. Here, we use North Sea cod (Gadus morhua) a case study assess how movement, interannual variation in dynamics influence...
Understanding how climate influences ecosystems is complicated by the many correlated and interrelated impacting factors. Here we quantify effects on Calanus finmarchicus in northeastern Norwegian Sea southwestern Barents Sea. By combining oceanographic drift models statistical analyses of field data from 1959 to 1993 investigating across trophic levels, are able elucidate pathways which zooplankton. The results show that both chlorophyll biomass spring C. summer relate positively a...
Diapause at depth is considered an integral part of the life cycle Calanus copepods, but few studies have focused on Arctic species glacialis and hyperboreus. By analyzing a large set pan-arctic observational data compiled from multiple sources, we show that has broad distribution in winter, indicating diapause facultative strategy. Both species' vertical distributions tend to deepen winter be deeper broader with increasing bottom depth, while individuals are aggregated closer sea floor...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 517:85-104 (2014) - DOI: https://doi.org/10.3354/meps11024 Temperature effects on Calanus finmarchicus vary in space, time and between developmental stages Kristina Øie Kvile1,*, Padmini Dalpadado2, Emma Orlova3,†, Nils C. Stenseth1, Leif Stige1 1Centre for Ecological Evolutionary Synthesis (CEES), Department...
Abstract The survival of fish eggs and larvae, therefore recruitment success, can be critically affected by transport in ocean currents. Combining a model early‐life stage dispersal with statistical stock–recruitment models, we investigated the role larval for variability across spatial scales population complex North Sea cod ( Gadus morhua ). By using coupled physical–biological model, estimated egg over 44‐year period. oceanographic component capable capturing interannual temperature...
Life history strategies such as multiyear life cycles, resting stages, and capital breeding allow species to inhabit regions with extreme fluctuating environmental conditions. One example is the zooplankton Calanus hyperboreus, whose considered an adaptation short unpredictable growth season in central Arctic Ocean. This copepod commonly described a true endemic; however, by statistically analyzing compiled observational data, we show that abundances are relatively low later stages adults...
The ubiquitous oceanic copepod Calanus finmarchicus is the major link between primary producers and important fish stocks in North Atlantic Ocean adjacent seas. Despite over a century of research on growth development this key species, effect predation risk these processes remains elusive. We tested how food level chemical cues from predator influence C. finmarchicus, using naïve laboratory population. Copepods reached adult stage earlier both response to high our experiment. High also...
CR Climate Research Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsSpecials 74:121-129 (2017) - DOI: https://doi.org/10.3354/cr01491 OPINION PIECE Avoiding pitfalls in interdisciplinary education R. E. Holt1,11,*, P. J. Woods2,12, A. S. Ferreira3,13, H. Bardarson2,12, Bonanomi4,14, W. Boonstra5, Butler2, F. K. Diekert6,15, N. Fouzai1, M. Holma7, Kokkalis3, Ø. Kvile6,16, I. Macdonald2, Malanski3,17,...
Abstract Despite the importance both in an ecological and management context, much uncertainty remains about underlying factors controlling spawning ground use marine fish. Here, we investigate how of Northeast Arctic (NEA) haddock ( Melanogrammus aeglefinus ) has changed over time. By combining data from a Soviet‐Russian egg survey conducted 35 year period (1959–1993) with biophysical drift model, estimate annual median latitudes NEA haddock. Furthermore, test for statistical association...
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...
Abstract Late developmental stages of the marine copepods in genus Calanus can spend extended periods a dormant stage (diapause) that is preceded by accumulation large lipid stores. We assessed how metabolism during development from C4 to adult altered response predation risk and varying food availability, ultimately understand more metabolic processes copepods. used RNA sequencing assess if perceived combination with varied availability affects expression genes associated diapause...
Mortality is notoriously difficult to estimate for zooplankton populations in the open ocean due confounding effect of advection. The vertical life table (VLT) approach commonly used, but has been shown be sensitive both spatial and temporal trends recruitment. Here, we mortality rates Calanus finmarchicus copepodites from spatiotemporally resolved data highly advective Norwegian Sea–Barents Sea spring summer. We apply VLT a statistical regression (SRA), specifically taking into account...