The biodiversity of benthos is influenced by habitat forming taxa defining Vulnerable Marine Ecosystems (VME). Such indicator taxa are used to identify and designate VME areas, but their numerical relation to benthic biodiversity is not known. In this thesis I address the relationship between abundance of VME indicator-taxa and megabenthos biodiversity in Norwegian waters. The main objectives were ...

Benthic (seafloor) remineralization of organic material determines the fate of carbon in the ocean and its sequestration. Bottom water temperature and labile carbon supply to the seafloor are expected to increase in a warming Arctic and correspondingly, benthic remineralization rates. We provide some of the first experimental data on the response of sediment oxygen demand (SOD), an established proxy ...

Introduction: Groundwater demand has been considerably heightened due to rapid urban growth, specifically in arid areas that rely primarily on groundwater. This study aims to utilize remote sensing and aeromagnetic data, combined with the Analytic Hierarchy Process (AHP) based GIS, to evaluate potential groundwater zones in the Sohag area, Egypt.<p> <p>Methods: Nine thematic layers, including ...

The presented work provides a comprehensive evaluation of the current availability of education programs and courses related to of AI the field of Information Technologies and Computer Science in higher education institutions (HIEs) in the Republic of Bulgaria. More specifically, this study examines 163 bachelor’s and 239 master’s degree programs from 28 HEIs available during the 2023/24 academic ...

Improving the predictive power of food web analysis is a major challenge. Identifying the relationships that link topological and dynamical features may help. We used the predictions of loop analysis about the effect of perturbations targeted to the components of Barents sea food web to quantify their sensitivity and community impact, that we summarized in two new indices, NI and NS. Using a ...

Vegetated coastal marine ecosystems are projected to expand northwards in the Arctic due to climate change, but the mechanisms for this expansion are complex and nuanced. Macroalgal biomass in the littoral areas of Svalbard has been increasing, but data at the glacier fronts are very scarce. In this study, we use hydroacoustics and video validation from an unmanned surface vehicle to survey macroalgal ...

Feedback is defined as a process in which students can benefit from information about their own performance to improve the quality of their work and learning strategies. This case study examines how students in a bachelor-level physiology course experienced their learning when receiving formative feedback through digital multiple-choice questions (MCQs) in the web-based learning platform Canvas. The ...

In mammals and birds, tanycytes are known to regulate thyroid hormone conversion, and this process is central to the control of seasonal reproduction. In mammals, this cell type is also implicated in retinoic acid signalling, neurogenesis, and nutritional gatekeeping, all of which have been linked to hypothalamic regulation of energy metabolism. Less is known about these potential wider roles of ...

Basert på en MSY-tilnærming anbefaler Havforskningsinstituttet at totalfangsten av snøkrabbe på norsk sokkel i 2025 ikke bør overstige 12 724 tonn. Kvoterådet gjelder for den høstbare delen av bestanden, som er snøkrabbe over minstemålet på 95 mm skallbredde.

Introduction: Increasing temperature of the global ocean alters the spatial behavior of a number of species. From the northern Atlantic Ocean, species may shift their area towards the poles. This results in the atlantification of the Barents Sea, raising questions about possible changes in species composition, community structure and community control.<p> <p>Methods: We address the question ...