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Thomas Gunnar Dahlgren

Thomas Gunnar Dahlgren

Research Professor

thda@norceresearch.no
+47 56 10 74 48
Nygårdsgaten 112, 5008 Bergen, Norway

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 or Antarctic areas including 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.

Projects
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Publications
Environmental DNA monitoring of pelagic fish fauna at the Hywind Scotland floating wind energy installation – A pilot study – NORCE Norwegian Research Centre 2022
Wind and Fisheries: Desktop Study on the Coexistence Between Offshore Wind and Fisheries in Sothern North Sea II – NORCE Norwegian Research Centre 2022
Abyssal fauna of polymetallic nodule exploration areas, eastern Clarion-Clipperton Zone, central Pacific Ocean: Annelida: Spionidae and Poecilochaetidae – Marine Biodiversity 2022
Abyssal fauna of polymetallic nodule exploration areas, eastern Clarion-Clipperton Zone, central Pacific Ocean: Annelida: Spionidae and Poecilochaetidae – Marine Biodiversity 2022
Benthic megafauna of the western Clarion-Clipperton Zone, Pacific Ocean – ZooKeys 2022
Environmental DNA monitoring of pelagic fish fauna at the Hywind Scotland floating wind energy installation – A pilot study – NORCE Climate and Environment 2022
Biogeography and connectivity across habitat types and geographical scales in Pacific abyssal scavenging amphipods – Frontiers in Marine Science 2021
Environment, ecology, and potential effectiveness of an area protected from deep-sea mining (Clarion Clipperton Zone, abyssal Pacific) – Progress in Oceanography 2021
Neanthes goodayi sp. nov. (Annelida, Nereididae), a remarkable new annelid species living inside deep-sea polymetallic nodules – European Journal of Taxonomy 2021
Biogeography and Connectivity Across Habitat Types and Geographical Scales in Pacific Abyssal Scavenging Amphipods – Frontiers in Marine Science 2021
The bone-degrading enzyme machinery: From multi-component understanding to the treatment of residues from the meat industry – Computational and Structural Biotechnology Journal 2021
MetaMon final project report - High-throughput metabarcoding of eukaryotic diversity for environmental monitoring of marine sediments – NORCE 2021
The impact of DNA extract homogenization and replication on marine sediment metabarcoding diversity and heterogeneity – Environmental DNA 2021
Grab what you can—an evaluation of spatial replication to decrease heterogeneity in sediment eDNA metabarcoding – PeerJ 2021
Benthic eDNA metabarcoding provides accurate assessments of impact from oil extraction, and ecological insights – Ecological Indicators 2021
Abyssal plains – 2021
Deciphering a Marine Bone-Degrading Microbiome Reveals a Complex Community Effort – mSystems 2021
Patterns of Macrofaunal Biodiversity Across the Clarion-Clipperton Zone: An Area Targeted for Seabed Mining – Frontiers in Marine Science 2021
Annelid Fauna of the Prince Gustav Channel, a Previously Ice-Covered Seaway on the Northeastern Antarctic Peninsula – Frontiers in Marine Science 2021
Implementation of Environmental DNA (eDNA) as a Tool for Ecosystem-Based Fisheries Management – U.S. Department of Commerce, NOAA 2020
Marin Overvåking Hordaland – Statusrapport 2019 – NORCE Norwegian Research Centre AS 2020
Application of polychaetes in (de)coupled integrated aquaculture: an approach for fish waste bioremediation – Aquaculture Environment Interactions 2020
A New Species of Osedax (Siboglinidae: Annelida) From Colonization Experiments in the Arctic Deep Sea – Frontiers in Marine Science 2020
Significant taxon sampling gaps in DNA databases limit the operational use of marine macrofauna metabarcoding – Marine Biodiversity 2020
Quantification of eDNA to map the distribution of cold-water coral reefs – Frontiers in Marine Science 2020
High diversity and pan-oceanic distribution of deep-sea polychaetes: Prionospio and Aurospio (Annelida: Spionidae) in the Atlantic and Pacific Ocean – Organisms Diversity & Evolution 2020
Marin Overvåking Hordaland - Samlerapport 2016-2018 – NORCE Norwegian Research Centre AS 2019
Mixed-habitat assimilation of organic waste in coastal environments – It's all about synergy! – Science of the Total Environment 2019
Abyssal fauna of polymetallic nodule exploration areas, eastern Clarion-Clipperton Zone, central Pacific Ocean: Annelida: Capitellidae, Opheliidae, Scalibregmatidae, and Travisiidae – ZooKeys 2019
Access 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
Application of polychaetes in (de)coupled integrated aquaculture: Production of a high-quality marine resource – Aquaculture Environment Interactions 2019
The highly toxic and cryptogenic clinging jellyfish Gonionemus sp. (Hydrozoa, Limnomedusae) on the Swedish west coast – PeerJ 2019
Enhancing opportunistic polychaete communities under fish farms: an alternative concept for integrated aquaculture – Aquaculture Environment Interactions 2019
Point of View: Managing a sustainable deep- sea ‘blue economy’ requires knowledge of what actually lives there – eLIFE 2018
Implications 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
Environmental benefits of leaving offshore infrastructure in the ocean – Frontiers in Ecology and the Environment 2018
Temporal changes in benthic macrofauna on the west coast of Norway resulting from human activities – Marine Pollution Bulletin 2018
A new genus and species of abyssal sponge commonly encrusting polymetallic nodules in the Clarion-Clipperton Zone, East Pacific Ocean. – Systematics and Biodiversity 2017
Mitochondrial 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
Abyssal fauna of the UK-1 polymetallic nodule exploration area, clarion-clipperton zone, central Pacific Ocean: mollusca – ZooKeys 2017
Effect of an offshore wind farm on the viviparous eelpout: Biometrics, brood development and population studies in Lillgrund, Sweden – Ecological Indicators 2017
Introducing ocean energy industries to a busy marine environment – Renewable & Sustainable Energy Reviews 2017
Observations 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
An End-to-End DNA Taxonomy Methodology for Benthic Biodiversity Survey in the Clarion-Clipperton Zone, Central Pacific Abyss – Journal of Marine Science and Engineering 2016
Abyssal fauna of the UK-1 polymetallic nodule exploration claim, Clarion-Clipperton Zone, central Pacific Ocean: Echinodermata – Biodiversity Data Journal 2016
Abyssal fauna of the UK-1 polymetallic nodule exploration area, Clarion-Clipperton Zone, central Pacific Ocean: Cnidaria – Biodiversity Data Journal 2016
Insights into the abundance and diversity of abyssal megafauna in a polymetallic-nodule region in the eastern Clarion-Clipperton Zone – Scientific Reports 2016
Comparison of manual and semi-automatic underwater imagery analyses for monitoring of benthic hard-bottom organisms at offshore renewable energy installations – Hydrobiologia 2015
MOM C-undersøkelse fra lokalitet Ådnøy i Sandnes kommune, 2014 – Uni Research AS 2014
Dahlgren T, Hatlen K, Johansen P-O. 2014. Environmental baseline at Mariner and Bressay. Uni Research. Section of Applied Environmental Research. 49 pp. – Uni Research Miljø 2014
The morphological diversity of Osedax worm borings (Annelida: Siboglinidae) – Journal of the Marine Biological Association of the United Kingdom 2014
A 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
Molecular taxonomy of Osedax (Annelida: Siboglinidae) in the Southern Ocean – Zoologica Scripta 2014
Impact hypothesis for offshore wind farms: Explanatory models for species distribution at extremely exposed rocky areas – Continental Shelf Research 2014
Molluscs from a shallow-water whale-fall and their affinities with adjacent benthic communities on the Swedish west coast – Marine Biology Research 2014
MOM-C undersøkelse fra lokalitet Hafsmo i Hemnfjorden, Snillfjord kommune, september 2012 – Uni Miljø, Uni Research AS 2013
MOM-C undersøkelse ved lokaliteten Tranøya ved Vallersund, Bjugn kommune i 2012 – Uni Miljø, Uni Research AS 2013
Bone-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
MOM-C undersøkelse ved Smineset og Ternskjæret i Follafjorden, Nærøy kommune, februar 2013 – Uni Miljø, Uni Research AS 2013
MOMC-undersøkelse fra lokalitetene Kåholmen og Heggvika i Fillfjorden, Hitra kommune, januar 2013 – Uni Miljø, Uni Research AS 2013
MOM-C undersøkelse ved oppdrettslokalitet Slokkholmen Øst, desember 2012 – Uni Miljø, Uni Research AS 2013
MOM-C undersøkelse ved oppdrettslokaliteten Storvikbukta, Kreklingbassenget, Indre Follafjord, Nærøy kommune, februar 2013 – Uni Miljø, Uni Research AS 2013
Phylogeography of the horse mussel Modiolus modiolus – Journal of the Marine Biological Association of the United Kingdom 2013
Two new Antarctic Ophryotrocha (Annelida: Dorvilleidae) described from shallow-water whale bones – Polar Biology 2013
Evidence of Osedax worm borings in Pliocene (similar to 3 Ma) whale bone from the Mediterranean – Historical Biology 2012
The Potent Respiratory System of Osedax mucofloris (Siboglinidae, Annelida) - A Prerequisite for the Origin of Bone-Eating Osedax? – PLOS ONE 2012
Systematics 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
Marin prøveinnsamling for studier av miljøpåvirkning av HAVSUL 1. – Uni Research, SAM e-rapport nr. 38-2012 2012
A live video observatory reveals temporal processes at a shelf-depth whale-fall – CBM - Cahiers de Biologie Marine 2010
Using computed-tomography to document borings by Osedax mucofloris in whale bone – CBM - Cahiers de Biologie Marine 2010
Osedax mucofloris (Polychaeta, Siboglinidae), a bone-eating marine worm new to Norway – Fauna Norvegica 2010
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