Dr Thomas Dahlgren has a PhD in zoology from the University of Gothenburg. He has specialized in invertebrate zoology with the emphasis on biodiversity mapping including species discovery and naming. Dr Dahlgren has also worked extensively on biodiversity assessments regarding impact from marine anthropogenic activities such as deep-sea mining, oil and gas extraction, offshore wind energy and aquaculture. At present Dr Dahlgren will work on characterizing the fauna living in the areas in the borderland between land and ocean as well as how this fauna is distributed and connected to e.g. carbon sequestration and on characterizing the fauna living in the deep-sea areas of interest for the mining industry as well as how this fauna is distributed and connected on the sea floor. Currently Dr Dahlgren holds a position as research professor at the Norwegian Research Centre NORCE in Bergen, Norway and as associate professor at the University of Gothenburg, Sweden.
Thomas Gunnar Dahlgren
Forsker I
thda@norceresearch.no
+47 56 10 74 48
Nygårdsgaten 112, 5008 Bergen, Norway
Divisjon
Klima og miljø
Forskningstema
Kartlegging og overvåking av marine ressurser
Havvind
Miljø-DNA/eDNA
Forskergrupper
Molekylær økologi og paleogenomikk - MEP
Mer info om Thomas
Last ned pressebildeKilde: Malin Arnesson
Prosjekter
-
Vitenskapelig artikkelHow many metazoan species live in the world's largest mineral exploration region?– Current Biology 2023
-
Vitenskapelig artikkelOsedax mucofloris (Polychaeta, Siboglinidae), a bone-eating marine worm new to Norway– Fauna Norvegica 2010
-
KonferanseforedragEnvironment - Legislation and Baseline Studies in the Deep Sea– Subsea Innovation Day - Deep Sea Mining 2016
-
KonferanseforedragMetamon: Initial Results and Roadmap– 2019 INTERNATIONAL WORKSHOP ON ENVIRONMENTAL GENOMICS: SCALABLE SOLUTIONS 2019
-
KonferanseforedragHigh Genetic Diversity and Connectivity in Common CCZ Taxa.– Deep sea biology symposium 2018
-
Vitenskapelig artikkelEnvironmental DNA reveals spatial patterns of fish and plankton diversity at a floating offshore wind farm– Environmental DNA 2023
-
KonferanseforedragIntegrating DNA barcoding with traditional morphology-based taxonomy: assessment of species diversity in marine bristle worms (Annelida)– 13th International Polychaete Conference 2019
-
ForskningsrapportMarin prøveinnsamling for studier av miljøpåvirkning av HAVSUL 1.– NORCE Research AS 2012
-
Vitenskapelig artikkelImplications of population connectivity studies for the design of marine protected areas in the deep sea: An example of a demosponge from the Clarion-Clipperton Zone– Molecular Ecology 2018
-
Faglig foredragHavvind og marint liv– Impactwind kick-off seminar 2022
-
ForskningsrapportMOM-C undersøkelse fra lokalitet Hafsmo i Hemnfjorden, Snillfjord kommune, september 2012– NORCE Research AS 2013
-
Vitenskapelig artikkelBiodiversity, biogeography, and connectivity of polychaetes in the world's largest marine minerals exploration frontier– Diversity and Distributions: A Journal of Conservation Biogeography 2023
-
Vitenskapelig artikkelA new genus and species of abyssal sponge commonly encrusting polymetallic nodules in the Clarion-Clipperton Zone, East Pacific Ocean.– Systematics and Biodiversity 2017
-
Vitenskapelig artikkelChecklist of newly-vouchered annelid taxa from the Clarion-Clipperton Zone, central Pacific Ocean, based on morphology and genetic delimitation– Biodiversity Data Journal 2023
-
Vitenskapelig artikkelImpact hypothesis for offshore wind farms: Explanatory models for species distribution at extremely exposed rocky areas– Continental Shelf Research 2014
-
ForskningsrapportMOM-C undersøkelse ved Smineset og Ternskjæret i Follafjorden, Nærøy kommune, februar 2013– NORCE Research AS 2013
-
Faglig foredragÖstersjön och havsbaserad vindkraft i balans med naturen– Paneldebatt på Almedalsveckan 2023
-
Faglig artikkelEnhancing opportunistic polychaete communities under fish farms: an alternative concept for integrated aquaculture– Aquaculture Environment Interactions 2019
-
Vitenskapelig artikkelThe highly toxic and cryptogenic clinging jellyfish Gonionemus sp. (Hydrozoa, Limnomedusae) on the Swedish west coast– PeerJ 2019
-
Vitenskapelig artikkelPart of an “Invasive Homesteading”? Reproducing population of the invasive varunid crab Hemigrapsus takanoi (Asakura & Watanabe, 2005) in the Limfjorden (Denmark)– BioInvasions Record 2025
-
Vitenskapelig artikkelGrab what you can—an evaluation of spatial replication to decrease heterogeneity in sediment eDNA metabarcoding– PeerJ 2021
-
Vitenskapelig artikkelThe impact of DNA extract homogenization and replication on marine sediment metabarcoding diversity and heterogeneity– Environmental DNA 2021
-
Faglig foredragOverview of the recent Connectivity studies in the deep sea: lessons learned– Molecular Data Workshop on the Biogeography and Connectivity of the Clarion-Clipperton Zone 2016
-
Vitenskapelig artikkelMonitoring of the Invasive Round Goby (Neogobius melanostomus) in an Estuarine Seascape Based on eDNA– Environmental DNA 2025
-
Vitenskapelig artikkelBenthic megafauna of the western Clarion-Clipperton Zone, Pacific Ocean– ZooKeys 2022
-
KonferanseforedragMETAMON High-throughput metabarcoding of eukaryotic diversity for environmental monitoring of marine sediments –Assessment of the barcode archive and taxonomic gaps– 2019 INTERNATIONAL WORKSHOP ON ENVIRONMENTAL GENOMICS: SCALABLE SOLUTIONS 2019
-
KonferanseforedragExperience from environmental baseline studies in the Pacific and what to learn from these– UTC Marine Minerals 2022
-
KonferanseforedragEnvironment – North Sea Vulnerabilities– VISTA Researcher Day 2022: Which conditions make the North Sea attractive in the future's energy system? 2022
-
KonferanseforedragEvidence-based methodology in sediment metabarcoding monitoring for offshore oil and gas extraction– 5th World Conference on Marine Biodiversity 2020
-
ForskningsrapportImplementation of Environmental DNA (eDNA) as a Tool for Ecosystem-Based Fisheries Management– U.S. Department of Commerce, NOAA 2020
-
Vitenskapelig artikkelObservations of fauna attending wood and bone deployments from two seamounts on the Southwest Indian Ridge– Deep-Sea Research Part II: Topical Studies in Oceanography 2017
-
Vitenskapelig artikkelThe Use of eDNA to Monitor Pelagic Fish in Offshore Floating Wind Farms– Oceanography 2023
-
Vitenskapelig artikkelQuantification of eDNA to map the distribution of cold-water coral reefs– Frontiers in Marine Science 2020
-
Vitenskapelig artikkelA live video observatory reveals temporal processes at a shelf-depth whale-fall– CBM - Cahiers de Biologie Marine 2010
-
Vitenskapelig artikkelBiogeography and Connectivity Across Habitat Types and Geographical Scales in Pacific Abyssal Scavenging Amphipods– Frontiers in Marine Science 2021
-
Vitenskapelig artikkelThe bone-degrading enzyme machinery: From multi-component understanding to the treatment of residues from the meat industry– Computational and Structural Biotechnology Journal 2021
-
Vitenskapelig artikkelNeanthes goodayi sp. nov. (Annelida, Nereididae), a remarkable new annelid species living inside deep-sea polymetallic nodules– European Journal of Taxonomy 2021
-
Vitenskapelig artikkelSystematics and biodiversity of Ophryotrocha (Annelida, Dorvilleidae) with descriptions of six new species from deep-sea whale-fall and wood-fall habitats in the north-east Pacific– Systematics and Biodiversity 2012
-
Vitenskapelig artikkelA new species of Erinaceusyllis (Annelida: Syllidae) discovered at a wood-fall in the eastern Clarion-Clipperton zone, central Pacific ocean– Deep Sea Research Part I: Oceanographic Research Papers 2024
-
Vitenskapelig artikkelAccess to Marine Genetic Resources (MGR): raising awareness of best-practice through a new agreement for biodiversity beyond national jurisdiction (BBNJ)– Frontiers in Marine Science 2019
-
Vitenskapelig artikkelBenthic eDNA metabarcoding provides accurate assessments of impact from oil extraction, and ecological insights– Ecological Indicators 2021
-
Vitenskapelig artikkelBone-eating worms from the Antarctic: the contrasting fate of whale and wood remains on the Southern Ocean seafloor– Proceedings of the Royal Society of London. Biological Sciences 2013
-
ForskningsrapportEnvironmental baseline at Mariner and Bressay– NORCE Research AS 2014
-
Vitenskapelig artikkelMolluscs from a shallow-water whale-fall and their affinities with adjacent benthic communities on the Swedish west coast– Marine Biology Research 2014
-
Vitenskapelig artikkelOn Anguillosyllis cf. hessleri Maciolek, 2020 – A species complex from the Clarion-Clipperton zone, abyssal central Pacific– Deep Sea Research Part I: Oceanographic Research Papers 2025
-
KonferanseforedragImpacts of Offshore Oil Extraction Assessed by Metabarcoding –Insights from the MetaMon Project– International workshop on Environmental Genomics 2021
-
KonferanseforedragClimate refugia in MSP – a scientific perspective– Towards climate smart MSP - inspiration and reflections from Sweden eMSP NBSR 2023
-
ForskningsrapportEnvironmental DNA monitoring of pelagic fish fauna at the Hywind Scotland floating wind energy installation – A pilot study– NORCE Research AS 2022
-
Vitenskapelig artikkelPoint of View: Managing a sustainable deep- sea ‘blue economy’ requires knowledge of what actually lives there– eLIFE 2018
-
ForskningsrapportEnvironmental DNA monitoring of fish communities at the Hywind Tampen floating offshore wind farm– NORCE Research AS 2024
-
Faglig foredragDNA barcoding assessment of species diversity in marine bristle worms (Annelida), integrating barcoding with traditional morphology-based taxonomy– 8th International Barcode of Life Conference 2019
-
ForskningsrapportMOM-C undersøkelse ved lokaliteten Tranøya ved Vallersund, Bjugn kommune i 2012– NORCE Research AS 2013
-
KonferanseforedragUsing genetic information to advance deep-sea taxonomy and biodiversity assessment in the Area– Enhancing Genetic Approaches to Advance Deep-Sea Taxonomy 2022
-
Vitenskapelig artikkelAbyssal fauna of the UK-1 polymetallic nodule exploration area, Clarion-Clipperton Zone, central Pacific Ocean: Cnidaria– Biodiversity Data Journal 2016
-
ForskningsrapportMetabarcoding of sediment eDNA communities at the Hywind Scotland OWF – A pilot study– NORCE Research AS 2023
-
Vitenskapelig artikkelIntroducing ocean energy industries to a busy marine environment– Renewable and Sustainable Energy Reviews 2017
-
ForskningsrapportMarin Overvåking Hordaland – Statusrapport 2019– NORCE Research AS 2020
-
Faglig foredragProposed workshop on integrating climate change and ecosystem interactions into CCAMLR science– CCAMLR WG EMM 2022
-
Vitenskapelig artikkelTemporal changes in benthic macrofauna on the west coast of Norway resulting from human activities– Marine Pollution Bulletin 2018
-
Faglig foredragKan havvind være positivt for det marine miljøet?– Debatt på Havforskningsinstituttet 2023
-
ForskningsrapportSupplementary eDNA analyses at the Hywind Tampen FOWF– NORCE Research AS 2025
-
Vitenskapelig artikkelMitochondrial genome and polymorphic microsatellite markers from the abyssal sponge Plenaster craigi Lim & Wiklund, 2017: tools for understanding the impact of deep-sea mining.– Marine Biodiversity 2017
-
ForskningsrapportMOM-C undersøkelse ved oppdrettslokalitet Slokkholmen Øst, desember 2012– NORCE Research AS 2013
-
Vitenskapelig artikkelAbyssal fauna of polymetallic nodule exploration areas, eastern Clarion-Clipperton Zone, central Pacific Ocean: Annelida: Spionidae and Poecilochaetidae– Marine Biodiversity 2022
-
Vitenskapelig artikkelAbyssal fauna of polymetallic nodule exploration areas, eastern Clarion-Clipperton Zone, central Pacific Ocean: Amphinomidae and Euphrosinidae (Annelida, Amphinomida)– ZooKeys 2022
-
Vitenskapelig artikkelMolecular taxonomy of Osedax (Annelida: Siboglinidae) in the Southern Ocean– Zoologica Scripta 2014
-
Vitenskapelig artikkelAbyssal fauna of the UK-1 polymetallic nodule exploration area, clarion-clipperton zone, central Pacific Ocean: mollusca– ZooKeys 2017
-
Vitenskapelig artikkelEnhancing opportunistic polychaete communities under fish farms: an alternative concept for integrated aquaculture– Aquaculture Environment Interactions 2019
-
Vitenskapelig artikkelTwo new Antarctic Ophryotrocha (Annelida: Dorvilleidae) described from shallow-water whale bones– Polar Biology 2013
-
ForskningsrapportMarin Overvåking Hordaland - Samlerapport 2016-2018– NORCE Research AS 2019
-
Vitenskapelig artikkelThe morphological diversity of Osedax worm borings (Annelida: Siboglinidae)– Journal of the Marine Biological Association of the United Kingdom 2014
-
Vitenskapelig artikkelApplication of polychaetes in (de)coupled integrated aquaculture: an approach for fish waste bioremediation– Aquaculture Environment Interactions 2020
-
Vitenskapelig artikkelEcological risk assessment of invertebrates caught in Swedish west-coast fisheries– Fisheries Research 2024
-
Faglig foredragHva kreves av miljøkartlegging?— Internasjonale erfaringer og hvordan dette kan overføres til norske forhold– Minister of Energy visit to NORCE in Stavanger 2024
-
KonferanseforedragAssessment of impact of a floating windfarm on the pelagic ecosystem – will eDNA help us?– OIKOS meeting 2023 2023
-
KonferanseforedragSediment eDNA Metabarcoding for monitoring impacts from offshore oil extraction– 1st DNAqua-Net International Conference 2021
-
Vitenskapelig artikkelInsights into the abundance and diversity of abyssal megafauna in a polymetallic-nodule region in the eastern Clarion-Clipperton Zone– Scientific Reports 2016
-
Vitenskapelig artikkelPhylogeography of the horse mussel Modiolus modiolus– Journal of the Marine Biological Association of the United Kingdom 2013
-
Vitenskapelig artikkelEffect of an offshore wind farm on the viviparous eelpout: Biometrics, brood development and population studies in Lillgrund, Sweden– Ecological Indicators 2017
-
Vitenskapelig artikkelDiversity and phylogeny of demosponge fauna in the abyssal nodule fields of the eastern Clarion-Clipperton Zone, Pacific Ocean– Zoologica Scripta 2024
-
Vitenskapelig artikkelAbyssal fauna of polymetallic nodule exploration areas, eastern Clarion-Clipperton Zone, central Pacific Ocean: Annelida: Capitellidae, Opheliidae, Scalibregmatidae, and Travisiidae– ZooKeys 2019
-
Vitenskapelig artikkelEvidence of Osedax worm borings in Pliocene (similar to 3 Ma) whale bone from the Mediterranean– Historical Biology 2012
-
Vitenskapelig oversiktsartikkelEnvironmental benefits of leaving offshore infrastructure in the ocean– Frontiers in Ecology and the Environment 2018
-
KonferanseforedragImpact on marine life from Offshore Wind activities - what do we know?– 8. Offshore wind : Coexistence in the ocean space 2022
-
Vitenskapelig artikkelA New Species of Osedax (Siboglinidae: Annelida) From Colonization Experiments in the Arctic Deep Sea– Frontiers in Marine Science 2020
-
Vitenskapelig artikkelSignificant taxon sampling gaps in DNA databases limit the operational use of marine macrofauna metabarcoding– Marine Biodiversity 2020
-
KonferanseforedragEvidence-based methodology in sediment metabarcoding monitoring for offshore oil and gas extraction– International Workshop on Environmental Genomics 2020
-
Faglig foredragOffshore Windfarms and Marine Life – The Baltic Story– Visit from Gdansk University of Technology 2024
-
Vitenskapelig artikkelPatterns of Macrofaunal Biodiversity Across the Clarion-Clipperton Zone: An Area Targeted for Seabed Mining– Frontiers in Marine Science 2021
-
Vitenskapelig artikkelDeciphering a Marine Bone-Degrading Microbiome Reveals a Complex Community Effort– mSystems 2021
-
ForskningsrapportWind and Fisheries: Desktop Study on the Coexistence Between Offshore Wind and Fisheries in Sothern North Sea II– NORCE Research AS 2022
-
KonferanseforedragOngoing activities with eDNA as a monitoring tool in high-latitude marine ecosystems– eDNA analyses – a tool for quantitative assessments of marine ecosystems 2018
-
Vitenskapelig artikkelAn End-to-End DNA Taxonomy Methodology for Benthic Biodiversity Survey in the Clarion-Clipperton Zone, Central Pacific Abyss– Journal of Marine Science and Engineering (JMSE) 2016
-
Vitenskapelig artikkelUsing computed-tomography to document borings by Osedax mucofloris in whale bone– CBM - Cahiers de Biologie Marine 2010
-
Vitenskapelig artikkelTaxonomy, phylogeny, and biodiversity of Lumbrineridae (Annelida, Polychaeta) from the Central Pacific Clarion-Clipperton Zone– ZooKeys 2023
-
Vitenskapelig artikkelCarbonate compensation depth drives abyssal biogeography in the northeast Pacific– Nature Ecology and Evolution 2023
-
ForskningsrapportMOMC-undersøkelse fra lokalitetene Kåholmen og Heggvika i Fillfjorden, Hitra kommune, januar 2013– NORCE Research AS 2013
-
ForskningsrapportMetaMon final project report - High-throughput metabarcoding of eukaryotic diversity for environmental monitoring of marine sediments– NORCE Research AS 2021
-
Vitenskapelig artikkelAnnelid Fauna of the Prince Gustav Channel, a Previously Ice-Covered Seaway on the Northeastern Antarctic Peninsula– Frontiers in Marine Science 2021
-
ForskningsrapportMarin Overvåking Hordaland – Sammendragsrapport 2019–2022– NORCE Research AS 2023
-
ForskningsrapportMOM C-undersøkelse fra lokalitet Ådnøy i Sandnes kommune, 2014– NORCE Research AS 2014
-
Vitenskapelig artikkelEnvironment, ecology, and potential effectiveness of an area protected from deep-sea mining (Clarion Clipperton Zone, abyssal Pacific)– Progress in Oceanography 2021
-
Vitenskapelig artikkelComparison of manual and semi-automatic underwater imagery analyses for monitoring of benthic hard-bottom organisms at offshore renewable energy installations– Hydrobiologia 2015
-
Faglig foredragOffshore Windfarms and Marine Life– Impactwind Summerschool 2024 2024
-
Vitenskapelig artikkelAbyssal fauna of the UK-1 polymetallic nodule exploration claim, Clarion-Clipperton Zone, central Pacific Ocean: Echinodermata– Biodiversity Data Journal 2016
-
Vitenskapelig artikkelMixed-habitat assimilation of organic waste in coastal environments – It's all about synergy!– Science of the Total Environment 2019
-
Vitenskapelig oversiktsartikkelInsights from the management of offshore energy resources: Toward an ecosystem-services based management approach for deep-ocean industries– Frontiers in Marine Science 2023
-
Vitenskapelig artikkelApplication of polychaetes in (de)coupled integrated aquaculture: Production of a high-quality marine resource– Aquaculture Environment Interactions 2019
-
Vitenskapelig oversiktsartikkelHigh diversity and pan-oceanic distribution of deep-sea polychaetes: Prionospio and Aurospio (Annelida: Spionidae) in the Atlantic and Pacific Ocean– Organisms Diversity & Evolution 2020
-
Vitenskapelig artikkelA Swedish subfossil find of a bowhead whale from the late Pleistocene: Shore displacement, paleoecology in south-west Sweden and the identity of the Swedenborg whale (Balaena swedenborgii Liljeborg, 1867)– Historical Biology 2014
-
KonferanseforedragSignificant taxon sampling gaps in DNA databases from the best studied marine habitat on Earth– 8th International Barcode of Life Conference 2019
-
Faglig foredragEnvironment - North Sea vulnerabilities : introduction– Impactwind Summerschool 2023 2023
-
Vitenskapelig artikkelThe Potent Respiratory System of Osedax mucofloris (Siboglinidae, Annelida) - A Prerequisite for the Origin of Bone-Eating Osedax?– PLOS ONE 2012