Fredrik Pleijel

Seniorforskare

Tjärnö Marine

Laboratory

Mail

fredrik.pleijel@marine.gu.se

Visiting address

Tjärnö

45296 Strömstad

Postal address

Tjärnö

45296 Strömstad

About Fredrik Pleijel

Research interests Assessment of polychaete phylogeny based on combined morphological and molecular data. Polychaete phylogeny is currently in a state of flux, but we are (hopefully) on our way to resolve the relationships among the major clades of polychaetes and annelids. My work is concentrated on the relationships within aciculate (“errant”) polychaetes, a group that includes around 5.000 species worldwide, together with more detailed studies and revisions of aciculate subgroups, mainly Hesionidae and Phyllodocidae. Other interests include biological nomenclature and the PhyloCode (an alternative taxonomic naming system to the current, Linnaean one) and to develop identification literature.

“Worms” in general does not appeal much to layman (except possibly as bait), at least not from an aestethical point of view, but by means of photography of live animals and electron microscopy I attempt to document the underestimated beauty of these animals.

Funded by The Swedish Research Council.

Publications

Phylogenomics resolves ambiguous relationships within Aciculata (Errantia,
Annelida)

E. Tilic, J. Stiller, E. Campos, Fredrik Pleijel, G. W. Rouse
Molecular Phylogenetics and Evolution - 2022
New symbiotic association in marine annelids: ectoparasites of comb
jellies

G. San Martin, P. Alvarez-Campos, Y. Kondo, J. Nunez, M. A. Fernandez-Alamo, Fredrik Pleijel, F. E. Goetz, A. Nygren, K. Osborn
Zoological Journal of the Linnean Society - 2021
Spaghetti to a Tree: A Robust Phylogeny for Terebelliformia (Annelida) Based on Transcriptomes, Molecular and Morphological
Data

J. Stiller, E. Tilic, V. Rousset, Fredrik Pleijel, G. W. Rouse
Biology-Basel - 2020
Molecular and morphometric analyses identify new lineages within a large Eumida (Annelida) species
complex

M. A. L. Teixeira, P. E. Vieira, Fredrik Pleijel, B. R. Sampieri, A. Ravara, F. O. Costa, Arne Nygren
Zoologica Scripta - 2020
Species delimitation in Amblyosyllis (Annelida,
Syllidae)

M. T. Aguado, M. Capa, D. Lago-Barcia, J. Gil, Fredrik Pleijel, Arne Nygren
Plos One - 2019
Phylogeny, evolution and mitochondrial gene order rearrangement in scale worms (Aphroditiformia,
Annelida)

Yanjie Zhang, Jin Sun, Greg W. Rouse, Helena Wiklund, Fredrik Pleijel, Hiromi K. Watanabe, Chong Chen, Pei Yuan Qian, Jian Wen Qiu
Molecular Phylogenetics and Evolution - 2018
Phylogeny of Hesionidae (Aciculata, Annelida), with four new species from deep-sea eastern Pacific methane seeps, and resolution of the affinity of
Hesiolyra

G. W. Rouse, J. I. Carvajal, Fredrik Pleijel
Invertebrate Systematics - 2018
Makrofauna mjukbotten. En tillståndsbedömning runt Sveriges
kuster

Stefan Agrenius, Fredrik Pleijel, Erika Norlinder, C Raymond, O Svensson, J Gunnarsson, J Albertsson
Havet 2015/2016 - 2016
Free-living calamyzin chrysopetalids (Annelida) from methane seeps, anoxic basins, and whale
falls

C. Watson, J. Ignacio Carvajal, N. G. Sergeeva, Fredrik Pleijel, G. W. Rouse
Zoological Journal of the Linnean Society - 2016
Articulating "Archiannelids": Phylogenomics and Annelid Relationships, with Emphasis on Meiofaunal
Taxa

S. C. S. Andrade, M. Novo, G. Y. Kawauchi, K. Worsaae, Fredrik Pleijel, G. Giribet, G. W. Rouse
Molecular Biology and Evolution - 2015
Whale falls, multiple colonisations of the deep, and the phylogeny of Hesionidae
(Annelida)

M. Summers, Fredrik Pleijel, G. W. Rouse
Invertebrate Systematics - 2015
Bertil Åkesson (1928-2013)
obituary.

Arne Nygren, Thomas Dahlgren, Fredrik Pleijel, Helena Wiklund, Tomas Cedhagen, Christer Erséus, Malte Andersson
Memoires of Museum Victoria - 2014
Cryptic species of Archinome (Annelida: Amphinomida) from vents and
seeps

E. Borda, J. D. Kudenov, P. Chevaldonne, J. A. Blake, D. Desbruyeres, M. C. Fabri, S. Hourdez, Fredrik Pleijel, T. M. Shank, N. G. Wilson, A. Schulze, G. W. Rouse
Proceedings of the Royal Society B-Biological Sciences - 2013
Phylogeny, biogeography and systematics of hydrothermal vent and methane seep Amphisamytha (Ampharetidae, Annelida), with descriptions of three new
species

J. Stiller, V. Rousset, Fredrik Pleijel, P. Chevaldonne, R. C. Vrijenhoek, G. W. Rouse
Systematics and Biodiversity - 2013
A revision of Nereimyra (Psamathini, Hesionidae, Aciculata,
Annelida)

Fredrik Pleijel, G. W. Rouse, Arne Nygren
Zoological Journal of the Linnean Society - 2012
Phylogeny of scale-worms (Aphroditiformia, Annelida), assessed from 18SrRNA, 28SrRNA, 16SrRNA, mitochondrial cytochrome c oxidase subunit I (COI), and
morphology

Erika Norlinder, Arne Nygren, H. Wiklund, Fredrik Pleijel
Molecular Phylogenetics and Evolution - 2012
New and lesser known species of Chrysopetalidae, Phyllodocidae and Syllidae from south California (Phyllodocida, Aciculata,
Annelida)

Fredrik Pleijel, M. T. Aguado, G. W. Rouse
Zootaxa - 2012
A partial revision of Gyptis (Gyptini, Ophiodrominae, Hesionidae, Aciculata, Annelida), with descriptions of a new tribe, a new genus and five new
species

Fredrik Pleijel, G. W. Rouse, Tobias Sundkvist, Arne Nygren
Zoological Journal of the Linnean Society - 2012
The symbiotic hesionid Parasyllidea humesi Pettibone, 1961 (Annelida: Polychaeta) hosted by Scrobicularia plana (da Costa, 1778) (Mollusca: Bivalvia: Semelidade) in European
waters

D. Martin, J. A. Cuesta, P. Drake, J. Gil, Arne Nygren, Fredrik Pleijel
Organisms Diversity & Evolution - 2012
From one to ten in a single stroke - resolving the European Eumida sanguinea (Phyllodocidae, Annelida) species
complex

Arne Nygren, Fredrik Pleijel
Molecular Phylogenetics and Evolution - 2011
Chimaeras and the origins of the holopelagic annelids Typhloscolecidae and Lopadorhynchidae: a reply to Struck & Halanych
(2010)

Arne Nygren, Fredrik Pleijel
Zoologica Scripta - 2011
A new species of Odontosyllis Claparede, 1863 (Annelida, Syllidae) with re-descriptions of O. liniata Hartmann-Schroder, 1962 and O. gymnocephala Hartmann-Schroder,
1965

A. Verdes, Fredrik Pleijel, M. T. Aguado
Zootaxa - 2011
Colour polymorphism in the polychaete Harmothoe imbricata (Linnaeus,
1767)

Arne Nygren, Erika Norlinder, Marina Panova, Fredrik Pleijel
Marine Biology Research - 2011
Two new and two poorly known autolytines (Polychaeta: Syllidae) from Madeira and the Mediterranean
Sea

Arne Nygren, Tobias Sundkvist, Barbara Mikac, Fredrik Pleijel
Zootaxa - 2010
First record of the association between the amphipod Metopa alderii and the bivalve
Musculus.

A. H. Tandberg, Christoffer Schander, Fredrik Pleijel
Marine Biodiversity Records - 2010
The fauna of hydrothermal vents on the Mohn Ridge (North
Atlantic)

C Schander, HT Rapp, JA Kongsrud, T Bakken, J Berge, S Cochrane, E Oug, I Byrkjedal, C Todt, T Cedhagen, A Fosshagen, A Gebruk, K Larsen, L Levin, Matthias Obst, Fredrik Pleijel, S Stöhr, A Warén, NT Mikkelsen, S Hadler-Jacobsen, R Keuning, KH Petersen, IH Thorseth, RB Pedersen
Marine Biology Research - 2010
Nephtyidae (Annelida, Polychaeta) from southern
Europe

A. Ravara, M. R. Cunha, Fredrik Pleijel
Zootaxa - 2010
Phylogenetic relationships within Nephtyidae (Polychaeta,
Annelida)

A. Ravara, H. Wiklund, M. R. Cunha, Fredrik Pleijel
Zoologica Scripta - 2010
Chambered chaetae in nereidiform polychaetes
(Annelida)

Fredrik Pleijel, L. Gustavsson
Zoomorphology - 2010
Redescription of Imajimaea draculai-a rare syllid polychaete associated with the sea pen Funiculina
quadrangularis

Arne Nygren, Fredrik Pleijel
Journal of the Marine Biological Association of the United Kingdom - 2010
Cryptic species of Notophyllum (Polychaeta: Phyllodocidae) in Scandinavian
waters

Arne Nygren, Jenny Eklöf, Fredrik Pleijel
Organisms Diversity & Evolution - 2010
Five colour morphs and three new species of Gyptis (Hesionidae, Annelida) under a jetty in Edithburgh, South
Australia

Fredrik Pleijel, G.W. Rouse, Arne Nygren
Zoologica Scripta - 2009
Progress in systematics: from Siboglinidae to Pogonophora and Vestimentifera and back to
Siboglinidae

Fredrik Pleijel, Thomas G. Dahlgren, Greg W Rouse
Comptes rendus de l'Academie des sciences - 2009
Deep-Sea, Swimming Worms with Luminescent
"Bombs"

K. J. Osborn, S. H. D. Haddock, Fredrik Pleijel, L. P. Madin, G. W. Rouse
Science - 2009
Arctic-boreal sibling species of Paranaitis (Polychaeta,
Phyllodocidae)

Arne Nygren, Jenny Eklöf, Fredrik Pleijel
Marine Biology Research - 2009
Eumida sanguinea - en taxonoms
mardröm

Arne Nygren, Fredrik Pleijel
Poster, systematikdagarna i Stockholm 2009 - 2009
Phylogenies without roots? A plea for the use of vouchers in molecular phylogenetic
studies.

Fredrik Pleijel, U Jondelius, Erika Norlinder, Arne Nygren, Bengt Oxelman, C Schander, Per Sundberg, M Thollesson
Molecular phylogenetics and evolution - 2008
The phylogenetic relationships between Amphinomidae, Archinomidae and Euphrosinidae (Amphinomida: Aciculata: Polychaeta), inferred from molecular
data

Helena Wiklund, Arne Nygren, Fredrik Pleijel, Per Sundberg
Journal of the Marine Biological Association of the UK - 2008
Vrijenhoekia balaenophila, a new hesionid polychaete from a whale fall off CaliforniaVrijenhoekia balaenophila, a new hesionid polychaete from a whale fall off
California

Fredrik Pleijel, G. W. Rouse, C. Ruta, Helena Wiklund, Arne Nygren
Zoological Journal of the Linnean Society - 2008
Marinbiologisk undersökning av Sannäsfjorden.
Naturinventeringar.

Lars-Ove Loo, Fredrik Pleijel
Naturinventeringar, Västra Götalands län - 2008
Drakulamask ny havsborstmask i
Sverige

Arne Nygren, Fredrik Pleijel, Matz S. Berggren
Fauma och Flora - 2008
Annelida

G. W. Rouse, Fredrik Pleijel
Zootaxa - 2008
Worms by
number

C. J. Glasby, S. P. Glasby, Fredrik Pleijel
Proceedings of the Royal Society B-Biological Sciences - 2008
Phylogeny of Hesionidae (Aciculata, Polychaeta), assessed from morphology, 18S rDNA, 28S rDNA, 16S rDNA and
COI

C. Ruta, Arne Nygren, V. Rousset, Per Sundberg, Helena Wiklund, Fredrik Pleijel
Zoologica Scripta - 2007
Phylogeny of benthic Phyllodocidae (Polychaeta) based on morphological and molecular
data

Jenny Eklöf, Fredrik Pleijel, Per Sundberg
Molecular Phylogenetics and Evolution - 2007
Annelida

Greg W Rouse, Fredrik Pleijel
Zootaxa - 2007
A new species of Myrianida (Syllidae, Polychaeta) from
Belize

Arne Nygren, Fredrik Pleijel
Zootaxa - 2007
Identifying new polychaetes in Scandinavia with the barcode gene
COI

Arne Nygren, Erika Norlinder, Fredrik Pleijel
Poster, Ninth International Polychaete conference 12-17 Augusti 2007 - 2007
A molecular phylogeny of
annelids

V. Rousset, Fredrik Pleijel, G. Rouse, Christer Erséus, M. E. Siddall
Cladistics - 2007
A molecular phylogeny of
Annelida

V. Rousset, Fredrik Pleijel, G. W. Rouse, Christer Erséus, M. E. Siddall
Cladistics - 2006
Identifering av nya havsborstmaskar i Skandinaviska vatten med hjälp av streckkodsgenen
COI.

Arne Nygren, Fredrik Pleijel
Systematikdagarna, Göteborg 2006 - 2006
Snarlika havsborstmaskar i svenska
vatten.

Fredrik Pleijel, Arne Nygren
Fauna & Flora - 2006
Taxonomic surrogacy in biodiversity assessments, and the meaning of Linnaean
ranks

Y. Bertrand, Fredrik Pleijel, G. W. Rouse
Systematics and Biodiversity - 2006
A revision of Syllidia (Psamathini, Hesionidae,
Polychaeta)

C. Ruta, Fredrik Pleijel
Journal of Natural History - 2006
A new branchiate hesionid polychaete (Annelida, Hesionidae) from New
Caledonia

C. Ruta, Fredrik Pleijel
Zoosystema - 2006
Phylogenetic position of Nerillidae and Aberranta (Polychaeta, Annelida), analysed by direct optimization of combined molecular and morphological
data

K. Worsaae, Arne Nygren, G. W. Rouse, G. Giribet, Jenny Persson, Per Sundberg, Fredrik Pleijel
Zoologica Scripta - 2005
Genetic relationships between Nereimyra punctata and N-woodsholea (Hesionidae,
Polychaeta)

Arne Nygren, Fredrik Pleijel, Per Sundberg
Journal of Zoological Systematics and Evolutionary Research - 2005
Phylogeny of Aphroditiformia (Polychaeta) based on molecular and morphological
data

Helena Wiklund, Arne Nygren, Fredrik Pleijel, Per Sundberg
Molecular Phylogenetics and Evolution - 2005
A revision of Micropodarke (Psamathini, Hesionidae,
Polychaeta)

Fredrik Pleijel, G. Rouse
Journal of Natural History - 2005
Revision of Aberranta Hartman, 1965 (Aberrantidae : Annelida), with descriptions of new species from the Mediterranean and Hong
Kong

A. S. Y. Mackie, Fredrik Pleijel, G. W. Rouse
Marine Ecology-an Evolutionary Perspective - 2005
Reproductive biology of a new hesionid polychaete from the Great Barrier
Reef

Fredrik Pleijel, G. W. Rouse
Biological Bulletin - 2005
Phylogenetic relationships within Nereididae (Annelida :
Phyllodocida)

Cinthya S. G. Santos, Fredrik Pleijel, Paulo Lana, G. W. Rouse
Invertebrate Systematics - 2005
On the phylogenetic relationships of Axiokebuita, Travisia and Scalibregmatidae
(Polychaeta)

Jenny Persson, Fredrik Pleijel
Zootaxa - 2005
Molecular phylogeny of the Annelida [Abstract; 22nd Annual Meeting of the Willi Hennig
Society]

V Rousset, M. E. Siddall, Greg W Rouse, Fredrik Pleijel, Christer Erséus
Cladistics - 2004
Types of polychaetous annelids at the Museum national d'Histoire naturelle,
Paris

V. Solis-Weiss, Y. Bertrand, M. N. Helleouet, Fredrik Pleijel
Zoosystema - 2004
A revision of Hesiospina (Psamathini, Hesionidae,
Polychaeta)

Fredrik Pleijel
Journal of Natural History - 2004
The phylogenetic position of Siboglinidae (Annelida) inferred from 18S rRNA, 28S rRNA and morphological
data

V. Rousset, G. W. Rouse, M. E. Siddall, A. Tillier, Fredrik Pleijel
Cladistics - 2004
Carboniferous fireworms (Amphinomida : Annelida), with a discussion of species taxa in
palaeontology

Fredrik Pleijel, G. W. Rouse, J. Vannier
Invertebrate Systematics - 2004
Phylogenetic nomenclature is compatible with diverse philosophical
perspectives

Fredrik Pleijel, M. Härlin
Zoologica Scripta - 2004
A revision of Paranaitis Southern, 1914 (Polychaeta :
Phyllodocidae)

T. Kato, Fredrik Pleijel
Zoological Journal of the Linnean Society - 2003
Molecular and morphological evidence of Alvinellidae relationships (Terebelliformia, Polychaeta,
Annelida)

V. Rousset, G. W. Rouse, J. P. Feral, D. Desbruyeres, Fredrik Pleijel
Zoologica Scripta - 2003
Ceci n'est pas une pipe: names, clades and phylogenetic
nomenclature

Fredrik Pleijel, G. W. Rouse
Journal of Zoological Systematics and Evolutionary Research - 2003
Problems in polychaete
systematics

G. W. Rouse, Fredrik Pleijel
Hydrobiologia - 2003
A revision of Notophyllum Orsted, 1843 (Phyllodocidae,
Polychaeta)

T. Kato, Fredrik Pleijel
Journal of Natural History - 2002
Morphological and molecular evidence of the phylogeny of Nereidiform polychaetes
(Annelida)

Thomas G. Dahlgren, J. Lundberg, Fredrik Pleijel, Per Sundberg
Journal of Zoological Systematics and Evolutionary Research - 2000
Position and delineation of Chrysopetalidae and Hesionidae (Annelida, polychaeta,
Phyllodocida)

Fredrik Pleijel, Thomas G. Dahlgren
Cladistics-the International Journal of the Willi Hennig Society - 1998
On the generic allocation of Chrysopetalum
caecum

Thomas G. Dahlgren, Fredrik Pleijel
Mitteilongen aus dem Hamburgschischen zoologischen Museum und Institut - 1995