I løpet av 2021 mistet Norge bærekraftsertifiseringen MSC for hyse og torsk fanget innenfor 12 nautiske mil. Temaet for oppgaven er å se på hvilke effekter dette bortfallet har hatt for alle ledd i verdikjeden fra fisker til eksportør. Det ble tatt utgangspunkt i følgende problemstilling: «Hva er konsekvensene av bortfall av MSC-sertifikat for torsk fisket innenfor 12 nautiske mil?» Ut i fra ...

We focused on the responses of two arms of the Atlantic salmon immune system against intracellular pathogens: the antibody (Ab) production by B cells after challenge with the facultative intracellular bacterium <i>Pisciricketsia salmonis</i> and the interferon (IFN) responses in a salmonid cell line against salmon alphavirus (SAV), infectious necrotic pancreas virus (IPNV), and <i>P. salmonis</i>. ...

Stakeholder consultations serve as powerful legitimising devices upon the balance of participants, the quality of the process and its effective results. We propose a deliberative digital stakeholder consultation methodology based on an appreciative inquiry approach to materiality assessment. We illustrate its application in a four-month consultation for the European Commission (2020 European Tourism ...

A hometown is the place to which an individual has an affective bond resulting from either being born there or living there for lived for a long time. This article investigates people's intention to support the revival of tourism in their hometowns post-COVID-19. The research hypothesises that individuals are affected by the threat to ontological security, freedom of movement, and freedom of ...

Non-compliance with social distancing (SD) measures clearly has negative effects on both public health and post-pandemic economic recovery. However, little is as yet known about people's views on and factors influencing their behavioral intentions toward SD measures. This study draws on moral disengagement theory and the norm-activation model to investigate mechanisms that promote or hinder compliance ...

Conservation of wildlife depends on precise and unbiased knowledge on the abundance and distribution of species. It is challenging to choose appropriate methods to obtain a sufficiently high detectability and spatial coverage matching the species characteristics and spatiotemporal use of the landscape. In remote regions, such as in the Arctic, monitoring efforts are often resource-intensive and there ...

This is the first detailed study assessing the morphological features of the testis and testicular sperm of members of the freshwater blood flukes Sanguinicola sp. from Leuciscus idus (Cyprinidae) and for S. volgensis from Pelecus cultratus (Cyprinidae), and the marine blood fluke Aporocotyle simplex from Hippoglossoides platessoides (Pleuronectidae). The present study reports a unique feature in ...

In recent years, Arctic char populations in Iceland have declined and the objective of this experiment was to throw further light on these changes by examining the effect of temperature (5, 9, 13, 17, and 21 °C) on the survival, growth rate, metabolism, and physiological indices of juvenile Arctic charr (initial mean body mass 4.02 ± 0.8 g). Mortality was 60% at 21 °C while at lower temperatures it ...

Environmentally sustainable aquaculture depends on accurate understanding of the impacts of aquaculture-derived organic matter (AOM) and the ability of aquaculture systems to absorb and dilute perturbations. To this end, the present study assessed the impacts of AOM from cage culture of Nile tilapia on the ecology of Lake Victoria, Kenya, using fish cages near Anyanga Beach in Siaya County from ...

Microbes play a critical role in plant litter decomposition and influence the fate of carbon in rivers and riparian zones. When decomposing low-nutrient plant litter, microbes acquire nitrogen (N) and phosphorus (P) from the environment (i.e., nutrient immobilization), and this process is potentially sensitive to nutrient loading and changing climate. Nonetheless, environmental controls on immobilization ...