Open sea cage Atlantic salmon (Salmo salar L.) farming is currently facing major challenges related to sea lice infestations, sea lice treatment, fish mortality, infectious diseases and fish escapees. Semi-closed containment systems may have the potential to resolve these challenges, by separating the rearing unit from the external environment. UV disinfection is suggested as a possible water treatment ...

The Barents Sea is undergoing rapid ocean warming with less sea ice and increased Atlantic inflow, shifting the pelagic ecosystem towards a more boreal one, a process referred to as Atlantification. While such changes have already been documented in the southern and central Barents Sea, less is known about the degree of Atlantification in the northern Barents Sea and Arctic Ocean. In this seasonal ...

<p>The European Arctic is characterized by large surface areas of coastal seas and long coastlines where important ecosystem processes are regulated by marine microbiomes that contribute to global carbon cycling via primary productivity and atmospheric CO₂ drawdown. In addition to biogeochemical cycling, these complex microbial ecosystems also support major marine food webs and lend ...

Aquaculture (i.e., farming of aquatic organisms, including fish, molluscs, crustaceans, and aquatic plants) is playing an increasingly important role in the global food supply. The contribution of aquaculture to total fish production has risen steadily, reaching 44% in 2014 (Moffitt and Cajas-Cano, 2014). The future growth of aquaculture is expected to help accomplish the Sustainable Development ...

The main purpose of this study is to identify consumer segments based on the importance of product attributes when buying seafood for homemade meals on weekdays. There is a particular focus on the relative importance of the packaging attributes of fresh seafood. The results are based on a representative survey of 840 Norwegian consumers between 18 and 80 years of age. This study found that taste, ...

Augustus Hamilton (1853–1913) was a New Zealand ethnologist and naturalist who amassed a significant collection of fossils, mostly of birds, during his career. Today, those fossils are housed in the Museum of New Zealand Te Papa Tongarewa (NMNZ). While some fossils have been catalogued and integrated into the collection of the NMNZ, a large part remained unsorted and uncatalogued. The present study ...

Effective ocean management requires integrated and sustainable ocean observing systems enabling us to map and understand ecosystem properties and the effects of human activities. Autonomous subsurface and surface vehicles, here collectively referred to as “gliders”, are part of such ocean observing systems providing high spatiotemporal resolution. In this paper, we present some of the results achieved ...

Geese are social birds and form pairs that can last a lifetime, being together throughout the year. Forming pairs and maintaining family groups increase the individual’s social status, giving it easier access to resources and more time to exploit them. Hence, social behaviour is favourable when pairs are building up body reserves before migrating to the breeding grounds as well as after breeding, ...

Marine næringsmiddler