Norwegian Institute of Marine Research

Multi-predatory feeding aggregations in the Norwegian Sea: prevalence and ecological importance

Abstract Multi-predatory feeding aggregations (MPFAs) occur when several predator species concurrently exploit shared, spatially and temporally aggregated prey. Although MPFAs are well described in some marine ecosystems, their prevalence in the Norwegian Sea has historically bee...

Review of Salmonid Alphavirus: Focus on Viral Survival, Shedding, Detection and Effects of Vaccination

ABSTRACT This review of salmonid alphavirus provides a collection of the most recent knowledge on the factors relevant for the transmission and control of the virus including updates on SAV survival, viral shedding, detection, and effects of vaccination as reported in peer‐review...

Anisakid biodiversity in the pygmy sperm whale ( Kogia breviceps ) stranded along the Spanish Atlantic coast

Abstract Anisakid nematodes are widespread parasites of marine mammals, characterized by complex life cycles involving invertebrate and fish hosts. While these parasites generally exhibit low specificity for intermediate hosts, they often show distinct associations with definitiv...

Physiological responses of Atlantic surfclams (Spisula solidissima) to moderate ocean acidification across thermal regimes

Understanding marine organismal responses to co-occurring climate stressors is critical for predicting changes in ecosystems and commercial fisheries. The Atlantic surfclam supports a major commercial fishery in the Northeastern United States, where ocean warming and acidificatio...

Infection by Cardiodectes bellottii (Copepoda: Pennellidae) on Lampanyctodes hectoris (Actinopterygii: Myctophidae) in the southern Benguela Current upwelling ecosystem

Hector’s lanternfish Lampanyctodes hectoris is an abundant mesopelagic fish found in the Benguela Current marine ecosystem and is frequently parasitised by the copepod Cardiodectes bellottii. This parasite is relatively large compared with its fish host, and negative impacts of i...

Food environments shaping small fish consumption among primary school-age children in Northern Uganda

Abstract Small fish are increasingly recognized as affordable, nutrient-rich animal-source foods, yet little is known about their consumption among primary school-age children, particularly within home and school food environments. This study applied Turner’s food environment fra...

Designing a School-Based, Complex Public Health Intervention to Improve Iodine Awareness in Adolescents in Six Countries

Background: Iodine is an essential micronutrient required for foetal development, cognitive function, and metabolic regulation; however, suboptimal iodine status remains a public health concern in Europe and other regions. Improving food literacy related to iodine may support hea...

A compilation of global bio-optical in situ data for ocean-colour satellite applications – version four

Abstract. A global in situ dataset for validation of satellite products from the ESA Ocean Colour Climate Change Initiative (OC-CCI) is presented. This version of the compilation, with data starting in 1996, extends to 2025, which is important for the validation of recent algorit...

Eddy kinetic energy and energy conversion rates along the Atlantic Water boundary current north of Svalbard

Abstract. On the continental slope north of Svalbard, the boundary current carrying Atlantic Water (AW) loses heat as it flows eastward. This cooling cannot be fully attributed to atmospheric heat loss or turbulent mixing. Lateral exchange, potentially linked to mesoscale activit...

A new reproducible, minimally invasive fin-clamp enabling biologging and animal-borne video studies of juvenile sharks

Abstract Background Fine-scale studies of juvenile shark ecology remain limited because existing tags are often too large or invasive to be deployed on sharks <2 m length. Consequently, high-resolution behavioral and physiological data from early life stages are scarce, despit...

The value of electronic tagging and tracking studies for understanding fish–hypoxia interactions

Abstract Objective Hypoxia (i.e., low dissolved oxygen availability) is a natural phenomenon but can also be induced by human activities (e.g., nutrient enrichment from runoff). Given that dissolved oxygen is essential for aquatic life, periods of hypoxia tend to have negative co...