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We thank the chief scientists Ronnie N. Glud (SDU) , Frank Wenzhoefer (AWI) and Matthias Zabel (MARUM) , and the captain and crew of the R/V Sonne Cruise SO261. Ship time for SO261 was provided by BMBF (Germany) awarded to FW and RNG. We are furthermore indebted to Sophie Arnaud and Miriam Brandt for support during sampling activities, and to Eve Julie Pernet (Ifremer) for support in the laboratory. Sampling was financially supported by a HADES-ERC Advanced grant "Benthic diagenesis and microbiology of hadal trenches" #669947; and by Danish National Research Foundation grant DNRF145 to establish the Danish Center for Hadal Research, both awarded to RNG. The Confocal Laser Scanning Microscope at the Natural History Museum of Denmark was funded by the Carlsberg Foundation (grant no. CF20-0288) .

Analysis of institutional authors

Herranz, MariaAuthor

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August 23, 2023
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Living on the edge-first survey of loriciferans along the Atacama Trench

Publicated to:European Journal Of Taxonomy. 879 162-187 - 2023-07-14 879(), DOI: 10.5852/ejt.2023.879.2169

Authors: Sorensen, Martin, V; Herranz, Maria; Grzelak, Katarzyna; Shimabukuro, Mauricio; Kristensen, Reinhardt M; Zeppilli, Daniela

Affiliations

Fed Univ Rio Grande, Inst Oceanog, BR-96203900 Rio Grande, RS, Brazil - Author
Polish Acad Sci, Inst Oceanol, Marine Ecol Dept, Sopot, Poland - Author
Univ Brest, CNRS, Ifremer, UMR6197,Biol & Ecol Ecosyst Marins Profonds, F-29280 Plouzane, France - Author
Univ Copenhagen, Dept Biol, DK-2100 Copenhagen, Denmark - Author
Univ Copenhagen, Nat Hist Museum Denmark, DK-2100 Copenhagen, Denmark - Author
Univ Southern Denmark, Dept Biol, HADAL, DK-5230 Odense, Denmark - Author
Univ Southern Denmark, Nordcee, DK-5230 Odense, Denmark - Author
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Abstract

The fauna of Loricifera along a north-south longitudinal transect following the Atacama Trench was explored. Whereas no loriciferans were collected from the actual trench, the continental slope and surrounding abyssal plains yielded two species of Rugiloricus and two of Pliciloricus. All four species are considered as new to science, but only one of them could be formally described. The new species, Pliciloricus ukupachaensis sp. nov., is closely related with the North Atlantic Pliciloricus leocaudatus, and the two species share different morphological traits, including an enlarged anal field with conspicuous pentagonal and hexagonal fields formed by strong, cuticular ridges. Among other peculiar traits, the new species is characterised by having strongly reduced trichoscalid plates and no double trichoscalids. Comparison with previously published, unidentified specimens suggests that the new species' distributional range might reach as far as Oregon off the US west coast.

Keywords

ArmorloricusBasinDeep-seaFaroe bankGenusHades-ercLoriciferaMeiofaunaNanaloricidae loriciferaNovPhylumPliciloricidaePliciloricus ukupachaensis spRugiloricus

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal European Journal Of Taxonomy due to its progression and the good impact it has achieved in recent years, according to the agency Scopus (SJR), it has become a reference in its field. In the year of publication of the work, 2023, it was in position , thus managing to position itself as a Q2 (Segundo Cuartil), in the category Ecology, Evolution, Behavior and Systematics. Notably, the journal is positioned en el Cuartil Q3 for the agency WoS (JCR) in the category Zoology.

From a relative perspective, and based on the normalized impact indicator calculated from World Citations provided by WoS (ESI, Clarivate), it yields a value for the citation normalization relative to the expected citation rate of: 1.07. This indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: ESI Nov 14, 2024)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-08-24, the following number of citations:

  • WoS: 3

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-08-24:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 4.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 4 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 9.1.
  • The number of mentions on the social network X (formerly Twitter): 18 (Altmetric).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
  • Additionally, the work has been submitted to a journal classified as Diamond in relation to this type of editorial policy.

Leadership analysis of institutional authors

This work has been carried out with international collaboration, specifically with researchers from: Brazil; Denmark; France; Poland.