Describing the hidden species diversity of Chaetozone (Annelida, Cirratulidae) in the Norwegian Sea using morphological and molecular diagnostics

Using molecular markers and species delimitation analyses, a high diversity of bi-tentaculate Cirratulidae was discovered from the North-East Atlantic. Five new species are described: Chaetozone pseudosetosasp. nov., Chaetozone quintasp. nov., Chaetozone barentsensissp. nov., Chaetozone monteverdiisp. nov., and Chaetozone chambersaesp. nov. Several morphogroups are also described, even though the presence of cryptic diversity prevented naming of individual species. For each species presented, a molecular diagnostic is given from the universal barcode COI and, when available, the D1–D2 domains of the 28S rRNA. This increases the number of species in Chaetozone in northern European waters from ten to at least 17 species, the exact number of species remaining uncertain as taxonomic issues with older names remain unresolved.

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The ecology and reproductive biology of Cherbonniera utriculus and Molpadia blakei from the N.E. Atlantic

Journal of the Marine Biological Association of the United Kingdom ◽

10.1017/s0025315400026680 ◽

1987 ◽

Vol 67 (2) ◽

pp. 385-397 ◽

Cited By ~ 8

Author(s):

P. A. Tyler ◽

D. S. M. Billett ◽

J. D. Gage

Keyword(s):

New Genus ◽

Great Variability ◽

The Arctic ◽

New Genus And Species ◽

East Atlantic ◽

Norwegian Sea ◽

The Past ◽

North East ◽

The North ◽

History Of

The Molpadiida is an order of sea cucumbers identified by their stout body, the posterior region narrowing to simulate a tail and the absence of tubefeet. Typically they inhabit muddy environments from shallow water to abyssal depths. In the past the great variability in the taxonomic characters of this order has led to the formation of many genera and species (Heding, 1931, 1935), but more recently it has become apparent that many diagnostic characters change markedly during the life history of these holothurians and as a result fewer species are now recognised (Deichmann, 1940; Pawson, 1977). In a revision of the Atlantic molpadiids Deichmann (1940) recorded just three species from the north-east Atlantic (Molpadia blakei, M. musculus and Hedingia albicans) with a further three species from the Arctic Ocean and Norwegian Sea (M. arctica, M. borealis and Eupyrgus scaber). To these Sibuet (1974) added the new genus and species Cherbonniera utriculus found in the Bay of Biscay.

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Systematic re-structure and new species of Sphaerodoridae (Annelida) after morphological revision and molecular phylogenetic analyses of the North East Atlantic fauna

ZooKeys ◽

10.3897/zookeys.845.32428 ◽

2019 ◽

Vol 845 ◽

pp. 1-97

Author(s):

María Capa ◽

Arne Nygren ◽

Julio Parapar ◽

Torkild Bakken ◽

Karin Meißner ◽

...

Keyword(s):

New Species ◽

Dna Sequences ◽

Phylogenetic Analyses ◽

28S Rrna ◽

East Atlantic ◽

Systematic Classification ◽

North East ◽

The North ◽

Distribution Ranges ◽

Molecular Phylogenetic

Detailed morphological study of more than 2600 North East Atlantic (NEA) sphaerodorids (SphaerodoridaeAnnelida) and phylogenetic analyses of DNA sequences of representatives of several identified morphospecies enforced changing the current systematic classification within the family allowed the discovery of new species provided new information about the morphological and genetic characterisation of members of this group and increased the species occurrence data to better infer their geographic and bathymetric distribution ranges. Phylogenetic analyses of nuclear (18S rRNA and 28S rRNA) and mitochondrial sequences (COI and 16S rRNA) of NEA short-bodied sphaerodorids revealed outstanding results including paraphyly of the generaSphaerodoropsisSphaerodoridium, andSphaerephesia. The number of longitudinal and transverse rows of dorsal macrotubercles is proposed as potential synapomorphies for the main clades and are consequently herein used for the genera delimitation. The new classification proposed here implies nomenclatural changes and the erection of a new genusGeminofilumgen. n.to accommodate the species previously considered asSphaerodoropsiswith two transverse rows of dorsal macrotubercles per segment. Four species are being described herein:EuritmianordicaCapa & Bakkensp. n.SphaerephesiamultichaetaCapa Moreira & Paraparsp. n.SphaerephesiaponsiCapa Parapar & Moreirasp. n.andSphaerodoridiumceliaeMoreira Capa & Paraparsp. n.Characterisation of the other 21 species including updated iconography and an identification key to all NEA short-bodied sphaerodorids are provided.

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Thrust–wrench interference tectonics in the Gulf of Cadiz (Africa–Iberia plate boundary in the North-East Atlantic): Insights from analog models

Marine Geology ◽

10.1016/j.margeo.2011.09.014 ◽

2011 ◽

Vol 289 (1-4) ◽

pp. 135-149 ◽

Cited By ~ 35

Author(s):

João C. Duarte ◽

Filipe M. Rosas ◽

Pedro Terrinha ◽

Marc-André Gutscher ◽

Jacques Malavieille ◽

...

Keyword(s):

Plate Boundary ◽

Gulf Of Cadiz ◽

East Atlantic ◽

North East ◽

The North ◽

Gulf Of Cádiz ◽

Analog Models

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Corrigendum to “Bisphenol A and its analogs in muscle and liver of fish from the North East Atlantic Ocean in relation to microplastic contamination. Exposure and risk to human consumers” [J. Hazard. Mater. 393 (2020) 122419]

Journal of Hazardous Materials ◽

10.1016/j.jhazmat.2021.125654 ◽

2021 ◽

Vol 415 ◽

pp. 125654

Author(s):

Luís Gabriel A. Barboza ◽

Sara C. Cunha ◽

Carolina Monteiro ◽

José O. Fernandes ◽

Lúcia Guilhermino

Keyword(s):

Atlantic Ocean ◽

Bisphenol A ◽

East Atlantic ◽

North East ◽

The North

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A COMPARISON OF DEPRESSIONS OVER EUROPE AND THE NORTH-EAST ATLANTIC

Weather ◽

10.1002/j.1477-8696.1971.tb04191.x ◽

1971 ◽

Vol 26 (5) ◽

pp. 210-216 ◽

Cited By ~ 1

Author(s):

I. Dodos

Keyword(s):

East Atlantic ◽

North East ◽

The North

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Exceptional influx of oceanic species into the North Sea late 1997

Journal of the Marine Biological Association of the United Kingdom ◽

10.1017/s0025315498000885 ◽

1999 ◽

Vol 79 (4) ◽

pp. 737-739 ◽

Cited By ~ 30

Author(s):

M. Edwards ◽

A.W.G. John ◽

H.G. Hunt ◽

J.A. Lindley

Keyword(s):

North Sea ◽

Indicator Species ◽

Climatic Conditions ◽

Historical Evidence ◽

East Atlantic ◽

North East ◽

The North ◽

The North Sea ◽

Oceanic Species

Continuous Plankton Recorder records from the North Sea and north-east Atlantic from September 1997 to March 1998 indicate an exceptional influx of oceanic indicator species into the North Sea. These inflow events, according to historical evidence, have only occurred sporadically during this century. This exceptional inflow and previous inflow events are discussed in relation to their similarity in terms of their physical and climatic conditions.

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