0000000000799196

AUTHOR

Kim Tallaksen Halvorsen

showing 6 related works from this author

Unlocking the potential of deep learning for marine ecology: overview, applications, and outlook

2022

The deep learning revolution is touching all scientific disciplines and corners of our lives as a means of harnessing the power of big data. Marine ecology is no exception. These new methods provide analysis of data from sensors, cameras, and acoustic recorders, even in real time, in ways that are reproducible and rapid. Off-the-shelf algorithms can find, count, and classify species from digital images or video and detect cryptic patterns in noisy data. Using these opportunities requires collaboration across ecological and data science disciplines, which can be challenging to initiate. To facilitate these collaborations and promote the use of deep learning towards ecosystem-based management…

FOS: Computer and information sciences0106 biological sciencesArtificial intelligenceComputer Science - Machine LearningEcologyComputer Science - Artificial IntelligenceComputer Vision and Pattern Recognition (cs.CV)010604 marine biology & hydrobiologyComputer Science - Computer Vision and Pattern RecognitionMarine monitoringMarine bioacousticsAquatic ScienceEcosystem-based managementOceanography010603 evolutionary biology01 natural sciencesMachine Learning (cs.LG)VDP::Teknologi: 500Artificial Intelligence (cs.AI)13. Climate actionMachine learning14. Life underwaterEcology Evolution Behavior and Systematics
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Lobster reserves as a management tool in coastal waters: Two decades of experience in Norway

2022

9 pages, 4 figures.-- Under a Creative Commons license

Economics and EconometricsTime seriesLong-term monitoringCo-creation of knowledgeComputingMilieux_LEGALASPECTSOFCOMPUTINGMarine reserveEstablishment of lobster reservesManagement Monitoring Policy and LawAquatic ScienceFisheries managementData_GENERALHomarus gammarusLawVDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920General Environmental Science
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Protection from fishing improves body growth of an exploited species

2022

Hunting and fishing are often size-selective, which favours slow body growth. In addition, fast growth rate has been shown to be positively correlated with behavioural traits that increase encounter rates and catchability in passive fishing gears such as baited traps. This harvest-induced selection should be effectively eliminated in no-take marine-protected areas (MPAs) unless strong density dependence results in reduced growth rates. We compared body growth of European lobster ( Homarus gammarus ) between three MPAs and three fished areas. After 14 years of protection from intensive, size-selective lobster fisheries, the densities in MPAs have increased considerably, and we demonstrate t…

Conservation of Natural ResourcesGeneral Immunology and MicrobiologyFisheriesFishesAnimalsHuntingGeneral MedicineVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497General Agricultural and Biological SciencesVDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920General Biochemistry Genetics and Molecular BiologyGeneral Environmental ScienceNephropidae
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Restoration of Abundance and Dynamics of Coastal Fish and Lobster Within Northern Marine Protected Areas Across Two Decades

2021

This article reviews a suite of studies conducted in a network of coastal Marine Protected Areas (MPAs) in Skagerrak, Southeast Norway. In 2006, Norway’s first lobster reserves were implemented, with the aim of protecting European lobster (Homarus gammarus) through a ban on fixed gear. A before–after control-impact paired series (BACIPS) monitoring program was initiated to evaluate effects of protection on depleted lobster populations. Experimental trapping and capture-recapture techniques were combined to track demography of populations, also including movement of individuals within and beyond MPAs and adjacent control areas. Further, population genetics and parentage studies were applied,…

0106 biological sciencesScienceCoastal fishOcean EngineeringCrustaceanAquatic ScienceQH1-199.5Oceanography010603 evolutionary biology01 natural sciencesHomarus gammarusFisheries managementVDP::Matematikk og Naturvitenskap: 400::Basale biofag: 47014. Life underwaterSalmoWater Science and TechnologyGlobal and Planetary ChangeFish migrationbiology010604 marine biology & hydrobiologyMarine reserveQEco-evolutionary dynamicsGeneral. Including nature conservation geographical distributionMarine reserveRebuildingbiology.organism_classificationMonitoring programFisherySpilloverGeographyMarine protected areaAcoustic telemetryFisheries managementDisplacement of effort
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Supplementary information from Protection from fishing improves body growth of an exploited species

2022

Additional results; figures (S1-S7) and tables (S1-S7)

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Electronic Supplementary Material S1-S6 from Cleaner fish escape salmon farms and hybridize with local wrasse populations

2018

File contains sample information, mds of identiy by missingness, accuracy and efficiency estimates, pairwise Fst table and comparison of K between STRUCTURE runs.

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