Blar i Publikasjoner fra Cristin - NIVA på tittel
Viser treff 442-461 av 2149
-
Effects of disturbance and vegetation type on total and methylmercury in boreal peatland and forest soils
(Journal article; Peer reviewed, 2016)Mercury (Hg) concentrations in freshwater fish relates to aquatic Hg concentrations, which largely derives from soil stores of accumulated atmospheric deposition. Hg in catchment soils as a source for aquatic Hg is poorly ... -
Effects of exposing shrimp larvae (Pandalus borealis) to aquaculture pesticides at field relevant concentrations, with and without food limitation
(Peer reviewed; Journal article, 2020)Anti-parasitic drugs used in the aquaculture industry are discharged to the sea after treatment of salmon. In this study, the effects of azamethiphos (AZA) in the Salmosan® formulation and deltamethrin (DEL) in the Alpha ... -
Effects of flow events and nutrient addition on stream periphyton and macroinvertebrates: an experimental study using flumes
(Journal article; Peer reviewed, 2017)We used flume experiments to study the effects of a temporary increase in stream flow on macroinvertebrates, leaf litter breakdown and soft-bodied benthic algae; both as a single stressor and eventually in combination with ... -
Effects of flow regime on benthic algae and macroinvertebrates - A comparison between regulated and unregulated rivers
(Journal article; Peer reviewed, 2016)Natural fluctuations in flow are important for maintaining the ecological integrity of riverine ecosystems. However, the flow regime of many rivers has been modified. We assessed the impact of water chemistry, habitat and ... -
Effects of increased irradiance on biomass, photobiology, nutritional quality, and pigment composition of Arctic sea ice algae
(Peer reviewed; Journal article, 2020)Ice algae are key contributors to primary production and carbon fixation in the Arctic, and light availability is assumed to limit their growth and productivity. We investigated photo-physiological responses in sea ice ... -
Effects of Loma morhua (Microsporidia) infection on the cardiorespiratory performance of Atlantic cod Gadus morhua (L).
(Journal article; Peer reviewed, 2016)The microsporidian Loma morhua infects Atlantic cod (Gadus morhua) in the wild and in culture and results in the formation of xenomas within the gill filaments, heart and spleen. Given the importance of the two former ... -
Effects of multiple stressors on cyanobacteria abundance vary with lake type
(Journal article; Peer reviewed, 2018)Blooms of cyanobacteria are a current threat to global water security that is expected to increase in the future because of increasing nutrient enrichment, increasing temperature and extreme precipitation in combination ... -
Effects of nitrogen enrichment on zooplankton biomass and N:P recycling ratios across a DOC gradient in northern-latitude lakes
(Peer reviewed; Journal article, 2021)We used data from whole-lake studies to assess how changes in food quantity (phytoplankton biomass) and quality (phytoplankton community composition, seston C:P and N:P) with N fertilization affect zooplankton biomass, ... -
Effects of nitrogen on nutrient-limitation in oligotrophic northern surface waters
(NIVA-rapport;7680, Research report, 2021)Nitrogen deposition has a potentially eutrophying impact on oligotrophic freshwaters. Here we present a data analysis and a literature review with a joint focus on nitrogen (N) limitation in oligotrophic lakes and rivers. ... -
Effects of organic matter addition on methylmercury formation in capped and uncapped marine sediments
(Journal article; Peer reviewed, 2016)In situ subaqueous capping (ISC) of contaminated marine sediments is frequently proposed as a feasible and effective mitigation option. However, though effective in isolating mercury species migration into overlying water, ... -
Effects of petrogenic pollutants on North Atlantic and Arctic Calanus copepods: From molecular mechanisms to population impacts
(Peer reviewed; Journal article, 2023)Oil and gas industries in the Northern Atlantic Ocean have gradually moved closer to the Arctic areas, a process expected to be further facilitated by sea ice withdrawal caused by global warming. Copepods of the genus ... -
Effects of pollution-induced changes in oxygen conditions scaling up from individuals to ecosystems in a tropical river network
(Peer reviewed; Journal article, 2021)Anthropogenic inputs of nutrients and organic matter are common in tropical lowland rivers while little is known about the pollution-induced changes in oxygen availability and respiratory performance of ectotherms in these ... -
Effects of Polyester Fibers and Car Tire Particles on Freshwater Invertebrates
(Peer reviewed; Journal article, 2022)Microplastic ingestion has been shown for various organisms, but knowledge of the potential adverse effects on freshwater invertebrates remains limited. We assessed the ingestion capacity and the associated effects of ... -
Effects of repeated short episodes of environmental acidification on Atlantic salmon (Salmo salar) from a landlocked population
(Peer reviewed; Journal article, 2021)Chronic or repeated exposure to environmental contaminants may result in allostatic overload, a physiological situation in which the costs of coping affect long-term survival and reproductive output. Continuous measurements ... -
Effects of sample preparation on methylmercury concentrations in arctic organisms
(Journal article; Peer reviewed, 2014)The biogeochemical cycling of mercury (Hg) in the marine environment is an issue of global concern, as consumption of marine fish is a major route of human exposure to the toxic specie methylmercury (MeHg). The most widely ... -
Effects of sample preservation and storage on mercury speciation in natural stream water
(Journal article; Peer reviewed, 2014)Despite an increasing focus on low level methods for determination of mercury species in water over the last decades, few studies have paid attention to direct effects of different sample preparation methods (i.e. preservation ... -
Effects of simulated environmental discharges of the salmon lice pesticides deltamethrin and azamethiphos on the swimming behaviour and survival of adult Northern shrimp (Pandalus borealis)
(Peer reviewed; Journal article, 2021)Swimming behaviour was investigated in adult egg-carrying northern shrimp (Pandalus borealis) exposed to dilute concentrations of the pesticides Alpha Max® (active ingredient deltamethrin) and Salmosan® (active ingredient ... -
Effects of submarine mine tailings on macrobenthic community structure and ecosystem processes
(Journal article; Peer reviewed, 2018)A mesocosm experiment with intact benthic communities was conducted to evaluate the effects of mine tailings on benthic community structure and biogeochemical processes. Two types of tailings were supplied from process ... -
Effects of water browning on freshwater biodiversity: the case of the predatory phantom midge Chaoborus nyblaei
(Journal article; Peer reviewed, 2018)Water browning, due to increased runoff of terrestrial dissolved organic carbon (DOC), has recently gained considerable attention. While it is well settled how browning affects light regime and thereby aquatic primary ... -
Effects of waterlogging and elevated salinity on the allocation of photosynthetic carbon in estuarine tidal marsh: a mesocosm experiment
(Peer reviewed; Journal article, 2022)Background and aim Coastal marshes and wetlands hosting blue carbon ecosystems have shown vulnerability to sea-level rise (SLR) and its consequent effects. In this study, we explored the effects of waterlogging and elevated ...