Aquaculture, as a rapidly expanding global industry, is increasingly challenged by both infectious and non-infectious diseases, posing significant threats to fish health and production. Traditional interventions, such as antibiotics and vaccines, though effective, raise concerns regarding environmental impact and the potential for resistance development. This review explores the promising role of ...

Teleost B cells producing neutralizing antibodies contribute to protection against salmonid alphavirus (SAV) infection, the etiological agent of pancreas disease, thereby reducing mortality and disease severity. Our previous studies show differences in B cell responses between the systemic immune tissues (head kidney (HK) and spleen) and the peritoneal cavity (PerC) after intraperitoneal SAV3 ...

Aim: Marine organisms are responding to warming by altering their distribution ranges, causing biogeographic range shifts and in some cases, favouring the community homogenisation. Transition zones can act as natural laboratories to explore the consequences of homogenisation. However, these habitats are relatively poorly studied in coastal areas. In this study, we aimed to investigate biotic ...

Background Brucellosis poses serious public health implications and substantial economic losses in pastoral rural settings in South Sudan. In humans, brucellosis is almost always originating from animals. Current literature provides scant data regarding the seroprevalence of brucellosis in South Sudan. This cross-sectional study investigates the seroprevalence of brucellosis among the pastoral ...

The diel vertical migration (DVM) of zooplankton is one of the largest species migrations to occur globally and is a key driver of regional ecosystems and the marine carbon pump. Previously thought to be hampered by the extreme light regime prevailing in the Arctic Ocean, observations have revealed that DVM does occur in ice-covered Arctic waters and suggest the decline in Arctic sea ice may thereby ...

Magnesium is important for enzymatic reactions and physiological functions, and its intracellular concentration is tightly regulated. Atlantic salmon has the ability to handle large changes in environmental Mg²⁺ concentration when migrating between freshwater and seawater habitats, making it a relevant model to investigate Mg²⁺ homeostasis. Parr-smolt transformation (PST) is ...

Overbefolka fiskebestander er et stort problem i mange innsjøer, særlig for røye, ørret, abbor og sik. Kjennetegnet er småvokst og mager fisk, gjerne med høy infeksjon av parasitter. Som et potensielt botemiddel ble et storstilt uttynningsfiske med teiner iverksatt i Takvatn (15 km2), Troms, på 1980-tallet. I nært samarbeid mellom forskere, grunneiere og fiskere ble 700.000 smårøye (31.3 tonn) tatt ...

Background - Research on the parasitic plant genus Cuscuta has flourished since the genomes of several of its species were published. Most of the research revolves around the iconic infection organ that secures the parasite’s sustenance: the haustorium. Interest in understanding the structure–function–regulation relationship of the haustorium is based as much on the wish to find ways to keep the ...

Which entrepreneurial opportunities do public servants find appealing, and what influences their evaluation? Our investigation of 14 Norwegian municipal entrepreneurial projects indicates that public servants positively assess the attractiveness of welfare, economic, and participatory opportunities. Their evaluations are shaped by public sector logics. Our contribution is twofold: first, we connect ...

Environmental changes, such as climate warming and higher herbivory pressure, are altering the carbon balance of Arctic ecosystems; yet, how these drivers modify the carbon balance among different habitats remains uncertain. This hampers our ability to predict changes in the carbon sink strength of tundra ecosystems. We investigated how spring goose grubbing and summer warming—two key environmental-change ...