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Decline and Recovery of Atlantic Cod (Gadus morhua) Stocks throughout the North Atlantic
(Chapter, 2008)Many stocks of Atlantic cod (Gadus morhua) on both sides of the North Atlantic are currently at much reduced levels of biomass, but this situation is not in all instances the result of long, continuous decline. Most Northwest ... -
Declining size-at-harvest in Norwegian salmon aquaculture: Lice, disease, and the role of stunboats
(Peer reviewed; Journal article, 2022)Sea cages used for fish farming are typically open to the environment, making the grow-out phase a race against the accumulation of infections. In Norway, farmed Atlantic salmon (Salmo salar) suffer outbreaks of salmon ... -
A deep learning-based method to identify and count pelagic and mesopelagic fishes from trawl camera images
(Peer reviewed; Journal article, 2021)Fish counts and species information can be obtained from images taken within trawls, which enables trawl surveys to operate without extracting fish from their habitat, yields distribution data at fine scale for better ... -
A deep scattering layer under the North Pole pack ice
(Peer reviewed; Journal article, 2021)The 3.3 million km2 marine ecosystem around the North Pole, defined as the Central Arctic Ocean (CAO), is a blind spot on the map of the world’s fish stocks. The CAO essentially comprises the permanently ice-covered deep ... -
Deep Semi-Supervised Semantic Segmentation in Multi-Frequency Echosounder Data
(Peer reviewed; Journal article, 2023)Multi-frequency echosounder data can provide a broad understanding of the underwater environment in a non-invasive manner. The analysis of echosounder data is, hence, a topic of great importance for the marine ecosystem. ... -
Deep Semi-Supervised Semantic Segmentation in Multi-Frequency Echosounder Data
(Peer reviewed; Journal article, 2023)Multi-frequency echosounder data can provide a broad understanding of the underwater environment in a non-invasive manner. The analysis of echosounder data is, hence, a topic of great importance for the marine ecosystem. ... -
Deep Vision - non-extractive fish sampling for stock surveillance
(Conference object, 2015) -
Deep Vision: An In-Trawl Stereo Camera Makes a Step Forward in Monitoring the Pelagic Community
(Journal article; Peer reviewed, 2014-11-13)Ecosystem surveys are carried out annually in the Barents Sea by Russia and Norway to monitor the spatial distribution of ecosystem components and to study population dynamics. One component of the survey is mapping the ... -
Deep-sea sponge derived environmental DNA analysis reveals demersal fish biodiversity of a remote Arctic ecosystem
(Peer reviewed; Journal article, 2023)The deep-sea is vast, remote, and largely underexplored. However, methodological advances in environmental DNA (eDNA) surveys could aid in the exploration efforts, such as using sponges as natural eDNA filters for studying ... -
DeepOtolith v1.0: An Open-Source AI Platform for Automating Fish Age Reading from Otolith or Scale Images
(Peer reviewed; Journal article, 2022)Every year, marine scientists around the world read thousands of otolith or scale images to determine the age structure of commercial fish stocks. This knowledge is important for fisheries and conservation management. ... -
Defining sustainable and precautionary harvest rates for data-limited short-lived stocks: a case study of sprat (Sprattus sprattus) in the English Channel
(Peer reviewed; Journal article, 2023)Empirical harvest control rules set catch advice based on observed indicators and are increasingly being used worldwide to manage fish stocks that lack formal assessments of stock and exploitation status. Within the ... -
Defining what constitutes a reliable dataset to test for hybridization and introgression in marine zooplankton: Comment on Choquet et al. 2020 “No evidence for hybridization between Calanus finmarchicus and C. glacialis in a subarctic area of sympatry”
(Peer reviewed; Journal article, 2021)The article ‘No evidence for hybridization between Calanus finmarchicus and C. glacialis in a subarctic area of sympatry’ (Choquet et al. 2020) concludes that “no evidence supports a potential for hybridization between C. ... -
Deformities in larvae and juvenile European lobster (Homarus gammarus) exposed to lower pH at two different temperatures
(Journal article; Peer reviewed, 2013-12-04)The ongoing warming and acidification of the world's oceans are expected to influence the marine ecosystems, including benthic marine resources. Ocean acidification may especially have an impact on calcifying organisms, ... -
Dei kloke bøyene [Kjell Arne Mork uttaler seg i Fiskaren om Argo-prosjektet]
(Fiskaren;, Others, 2007-11-07) -
Demersal assemblages of the continental shelf and slope edge between the Gulf of Tehuantepec (Mexico) and the Gulf of Papagayo (Costa Rica)
(Journal article; Peer reviewed, 1991-07-11)The structure of demersal assemblages (fish, crustaceans and cephalopods) of the continental shelf and upper slope between the Gulf of Tehuantepec and the Gulf of Papagayo was studied from data obtained in the course of ... -
Demersal assemblages of the continental shelf and upper slope of Angola
(Journal article; Peer reviewed, 1992-04-21)The structure of the demersal assemblages (fish, crustaceans and cephalopods) of the continental shelf and upper slope of Angola (ca 5 to 17-degrees-S) was studied based on the trawl survey of the RV `Dr. Fridtjof Nansen' ... -
Demersal Fish Assemblages and Spatial Diversity Patterns in the Arctic-Atlantic Transition Zone in the Barents Sea
(Journal article; Peer reviewed, 2012-04-17)Direct and indirect effects of global warming are expected to be pronounced and fast in the Arctic, impacting terrestrial, freshwater and marine ecosystems. The Barents Sea is a high latitude shelf Sea and a boundary area ... -
Demersal fish assemblages in the boreo-Arctic shelf waters around Svalbard during the warm period 2007–2014
(Peer reviewed; Journal article, 2017)The temporal and spatial resilience of abundance patterns of assemblages of organisms inhabiting transition zones between Arctic and boreal regions is an issue of concern in relation to climate change. The recognition that ... -
Demographic history has shaped the strongly differentiated corkwing wrasse populations in Northern Europe.
(Journal article; Peer reviewed, 2019)Understanding the biological processes involved in genetic differentiation and divergence between populations within species is a pivotal aim in evolutionary biology. One particular phenomenon that requires clarification ...