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Thomas Dahlgren

Göteborg University, Department of Marine Ecology, Tjärnö Marine Biological Laboratory, 452 96 Strömstad, SWEDEN, Email:, Office phone: ++46 (526) 686 82, Cell phone: ++46 (70) 364 7368


Current research projects includes:

Population genetics of marine invertebrates and how climate change shape marine diversity in the Northern Hemisphere

2002 Weinberg, J. A., Dahlgren, T. G., and Kenneth M. Halanych. Influence of rising sea temperature on commercial bivalve species of the U.S. Atlantic coast. In Proceedings of the American Fisheries Society symposium "Fisheries in a Changing Climate". Phoenix, Arizona 2001. (In Press)

2000 Dahlgren, T. G., Weinberg, J. R. & K. M. Halanych. Phylogeography of the ocean quahog (Arctica islandica): influences of paleoclimate on genetic diversity and species range. Marine Biology 137, 487-495.

Deep divergence of metazoan taxa, particularly the relationships within Annelida. Of special interest is the relationship between fossil taxa such as Wiwaxia and Canadia and the Resent group Chrysopetalidae

2002 Tzetlin, A. B., Dahlgren, T. G., & G. Purschke. Ultrastructure of the body wall, body cavity, nephridia and spermatozoa in four species of the Chrysopetalidae (Annelida). Zoologischer Anzeiger 241, 37-55.

2000 Dahlgren, T. G., Lundberg, J., Pleijel, F. & P. Sundberg. Morphological and molecular evidence of the phylogeny of Nereidiform polychaetes (Annelida). Journal of Zoological Systematics and Evolutionary Research 38(4): 249-254.

1998 Pleijel, F. & T. G. Dahlgren. Phylogeny of Phyllodocida and Nereidiformia (Polychaeta, Annelida). Cladistics 14: 129-150.

1996 Dahlgren, T. G. Two new species of Dysponetus (Polychaeta: Chrysopetalidae) from Italy and Papua New Guinea. Proceedings of the Biological Society of Washington 109 (3): 575-585.

1995 Dahlgren, T. G. & F. Pleijel. On the generic allocation of Chrysopetalum caecum (Polychaeta: Chrysopetalidae). Mitteilungen aus dem Hamburgischen zoologischen Museum und Institut 92:159-173.

Phylogeny of the model annelid Ophryotrochaand the evolution of reproductive strategies

2001 Dahlgren, T. G., Åkesson, B., Schander, C., Halanych, K. M. & P. Sundberg. Molecular phylogeny of the model annelid Ophryotrocha. Biological Bulletin of the Marine Biological Laboratory, Woods Hole 201, 193-203.

Population genetics of atlantic herring. Participant in the EU-funded project HERGEN

To the Halanych Lab (WHOI)

Translated papers

The translations was made for me by Fredrik Nilsson ( and should be regarded as provisional. Figs as well as most of the formatting are omitted (available in the pdf-files only).