Seaweed liquid extracts are an attractive source of phytochemicals with high potential applicability in the aquafeed-additive industry. A commercial seaweed liquid extract (True Algae Max, TAM®), which has a marine seaweed odor, also dislplays significant levels of polysaccharides, phytochemicals, phenolic, and flavonoid compounds showing antioxidant activities and DPPH inhibition. This study ...

Hypertension, a major health concern linked to heart disease and premature mortality, has prompted a search for alternative treatments due to side effects of existing medications. Sustainable harvesting of low-trophic marine organisms not only enhances food security but also provides a variety of bioactive molecules, including peptides. Despite comprising only a fraction of active natural compounds, ...

Denne masteroppgaven undersøker hvordan norske fiskeres konkurransefortrinn påvirkes når de mister tilgang til viktige fiskefelt. Hensikten er å utforske hvordan internasjonale politiske endringer påvirker fiskerienes strategi og effekten av dette. Studien undersøker derfor endringer i lønnsomheten til fiskeriene ved å analysere endringer i fangstkostnader og fangstverdi knyttet til ressursen før ...

In drug discovery, natural organisms offer a rich source of bioactive compounds, with over one-third of drugs originating from natural sources. Bioprospecting is the field of systematically screening organisms to discover and isolate novel compounds for drug development or other applications. With the shifting trends of examining the biodiversity of the marine environment, have marine bioprospecting ...

With rapidly increasing temperatures, reducing ice cover and lower albedo, the physico-chemical conditions in the Arctic fluctuate more than any other place on the planet, especially in the light of the current climate change. This has a severe effect on e.g. Arctic marine eco- systems, which make marine species good indicators, as they are in close contact with environmental gradients. One of which ...

The utilization of algae in aquaculture is environmentally friendly, safe, and cost-effective and can effectively substitute for fish meal and fish oil in aquatic feeds. Incorporating algae as dietary supplements leads to significant enhancements in aquatic animals’ health and also improves the aquatic ecosystem. Algae are rich sources of nutrients and serve as the foundational food source in ...

The size selectivity and exploitation patterns of two T0 (diamond mesh) codends were tested and compared with T90 (diamond mesh turned by 90◦) codends in demersal trawl fishery targeting white croaker (Pennahia argentata) of the northern South China Sea. The four experimental codends involved two mesh sizes, 30 and 35 mm, respectively. The size selectivity of the T0 codend with mesh size of ...

Prey metabarcoding has become a popular tool in molecular ecology for resolving trophic interactions at high resolution, from various sample types and animals. To date, most predator–prey studies of small-sized animals (<1 mm) have met the problem of overabundant predator DNA in dietary samples by adding blocking primers/ peptide nucleic acids. These primers aim to limit the PCR amplification ...

Oppdrett av atlantisk laks er en stor næring i Norge i dag, men opplever problematikk med blant annet sykdom. Det arbeides med å utvikle gode og effektive vaksiner for å forhindre alvorlige sykdomsproblemer og opprettholde god fiskevelferd. For å kunne bidra til videre vekst i næringen er det derfor viktig å få en god forståelse for immunsystemet til fisk og undersøke vaksineresponser for å utvikle ...

During early development much of the fish’s physiological capacity and fitness is established. Still, our understanding of how the early development (endogenous and external) communicate with and influence embryonic development in fish is limited. This study investigated how signaling of maternal cortisol may influence early embryogenesis, with particular focus on the development of the hypothalam ...