Browsing Department of Natural Sciences by Subject "VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497"
Now showing items 21-36 of 36
-
Kvalitativ og kvantitativ inventering av fiskesamfunnet i Ytre Oslofjord : En beskrivelse av diversitet og generelle trekk ved fiskesamfunnet i Færder- og Ytre Hvaler nasjonalparker for perioden 2017-2019.
(Master thesis, 2020)A three-year study was performed annually from 2017 to 2019 in Færder- and Ytre Hvaler national parks located in outer Oslofjord. Data collection was conducted in shallow- and deep water habitats using ... -
Long term effects of activated carbon on benthic communities
(Master thesis, 2021)Thin-layer capping with activated carbon (AC) has a potential as situ remediation method for sediments exposed to hydrophobic organic compounds (HOCs). This treatment was applied at two test fields; one in the Eidangerfjord ... -
Mapping the invasion: spatiotemporal distribution of the Pacific oyster in Scandinavia
(Master thesis, 2021)The Pacific oyster (Magallana/Crassostrea gigas) is an invasive species to Scandinavia, originating on the Pacific coasts of Asia. Introduction to Europe of these oysters was a result of farming initiatives, put in place ... -
Methods for studying coastal bivalves in a changing world : A review and implications for management
(Master thesis, 2021)Anthropogenic activities such as pollution, CO2 emission, and overfishing, are among leading reasons for global environmental change and negative impacts on the marine environment including loss of biodiversity. ... -
Microzooplankton communities and their grazing of phytoplankton under artificial upwelling in the oligotrophic ocean
(Peer reviewed; Journal article, 2023)Ocean artificial upwelling has been suggested to boost primary production and increase harvestable resources such as fish. Yet, for this ecosystem-based approach to work, an effective energy transfer up the food web is ... -
Migratory passage structures at hydropower plants as potential physiological and behavioural selective agents
(Peer reviewed; Journal article, 2019) -
Molecular systematics of the long-snouted deepwater dogfish (Centrophoridae, Deania) with implications for identification, taxonomy and conservation
(Peer reviewed; Journal article, 2021) -
Movement diversity and partial sympatry of coastal and Northeast Arctic cod ecotypes at high latitudes
(Peer reviewed; Journal article, 2023)Movement diversity within species represent an important but often neglected, component of biodiversity that affects ecological and genetic interactions, as well as the productivity of exploited systems. By combining ... -
No additional stress of sublethal gas supersaturation in a landlocked population of Atlantic salmon (Salmo salar) exposed to environmental acidification
(Peer reviewed; Journal article, 2024)The landlocked Atlantic salmon population “bleke” faces extinction due to environmental acidification (EA) and hydropower expansion in the Norwegian river Otra. Despite of restoration, unexpected mortality has been reported ... -
Prey differences drive local genetic adaptation in Antarctic fur seals
(Journal article; Peer reviewed, 2019)Antarctic fur seal (Arctocephalus gazella) colonies are found on sub-Antarctic islands around the continent. These islands experience a range of conditions in terms of physical and biological habitat, creating a natural ... -
Protection from fishing improves body growth of an exploited species
(Peer reviewed; Journal article, 2022)Hunting and fishing are often size-selective, which favours slow body growth. In addition, fast growth rate has been shown to be positively correlated with behavioural traits that increase encounter rates and catchability ... -
Role of protozooplankton in the diet of North Sea autumn spawning herring (Clupea harengus) larvae
(Peer reviewed; Journal article, 2022)The role of small prey (<200 µm) in larval marine fsh nutrition is largely understudied. Here, we explore the contribution of protozooplankton (PZP 20–200 µm) to larval fsh diets, compared to metazoan microzooplankton (MZP ... -
Seasonality in phytoplankton communities and production in three Arctic fjords across a climate gradient
(Peer reviewed; Journal article, 2024)Phytoplankton communities and production in Arctic fjords undergo strong seasonal variations. Phytoplankton blooms are periods with high primary production, leading to elevated algal biomass fueling higher trophic levels. ... -
Tidsanalyse av bentisk bløtbunnsfauna i Kristiansandsfjorden : Har det forekommet endringer i bløtbunnsfauna fra 1983 til 2016?
(Master thesis, 2017)Kristiansandsfjorden har i en årrekke vært utsatt for sterk belastning forårsaket av menneskelige aktiviteter. Hovedproblemene i fjorden har vært knyttet til høye konsentrasjoner av organisk materiale, klororganiske ... -
Unified understanding of intrinsic and extrinsic controls of dissolved organic carbon reactivity in aquatic ecosystems
(Peer reviewed; Journal article, 2022)Despite our growing understanding of the global carbon cycle, scientific consensus on the drivers and mechanisms that control dissolved organic carbon (DOC) turnover in aquatic systems is lacking, hampered by the mismatch ... -
Visual fish assemblage inventory of outer Oslo fjord, with special emphasis on young-of-the-year Atlantic cod (Gadus morhua)
(Master thesis, 2021)The coastal zone along the outer Oslofjord is physically unique and home to many ecologically depleted and economically important species, including Atlantic cod (Gadus morhua). Coastal cod in Skagerrak is divided into two ...