title: Overview of Antarctic icefish species of the genus Channichthys Richardson, 1844 (Notothenioidei: Channichthyidae) based on morphological studies
metadata.name: dc.contributor.author
metadata.value: Nikolaeva, Ekaterina
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2024-12-17T11:46:00Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2024-12-17T11:46:00Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2024-09
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Nikolaeva, E. 2024. Overview of Antarctic icefish species of the genus Channichthys Richardson, 1844 (Notothenioidei: Channichthyidae) based on morphological studies. Bio. Comm. 69(3): 162–173. https://doi.org/10.21638/spbu03.2024.304
metadata.lang: en_GB
metadata.name: dc.identifier.other
metadata.value: https://doi.org/10.21638/spbu03.2024.304
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/48136
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: The study presents the results of a most recent comprehensive review of the
  morphology of little-studied endemic Antarctic icefishes of the genus Channichthys
  Richardson, 1844 (family Channichthyidae). It aims at a detailed taxonomic
  revision in order to analyze their general similarity and relationships and to
  conclude on the exact species composition of this genus. Previously, there was
  reported from 1 polymorphic to 9 separate sympatrically widespread species
  within the genus Channichthys, while the validity of most species remained
  questionable up to date. In this study, the structure of the gill apparatus and
  the seismosensory system have been studied along with the up-to-date methods
  of digital microfocus radiography and statistical methods accompanied by
  conventional methods of analyzing the external morphology of fish. The representatives
  of all nine species listed previously in different publications were
  analyzed with strict reference to museum collections. As a result, the validity of
  only four out of nine nominal species of the genus Channichthys was confirmed:
  Ch. rhinoceratus, Ch. rugosus, Ch. velifer, and Ch. panticapae. The validity of five
  other species has not been confirmed: three species (Ch. aelitae, Ch. mithridatis,
  and Ch. richardsoni) are conspecific with Ch. rhinoceratus, while two species
  (Ch. bospori and Ch. irinae) with Ch. panticapae. Most of their distinctive morphological
  characters, identified previously as indicators of the species level,
  overlap with those of valid species. Improved differential diagnoses of valid
  species of the genus Channichthys have been compiled, including key features
  that make it possible to identify the species of this genus correctly.
metadata.lang: en_GB
metadata.name: dc.description.sponsorship
metadata.value: The study was supported by
  the Russian State Task of the Zoological
  Institute of the Russian Academy of Sciences
  (ZIN RAS) No. 122031100285-3 “Systematics,
  Phylogeny, and Biogeography of Fishes of
  the Far Eastern Seas, the Arctic, Antarctic,
  and Fresh Waters of Russia”, based on the
  collections of the Laboratory of Ichthyology
  of ZIN RAS, and using the ZIN RAS scientific
  equipment, including that of the Centre of
  Collective Use “TAXON” ZIN RAS.
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: en
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: St Petersburg State University
metadata.lang: en_GB
metadata.name: dc.relation.ispartofseries
metadata.value: Biological Сommunications;Volume 69; Issue 3
metadata.lang: -
metadata.name: dc.subject
metadata.value: Antarctic icefishes
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: morphology
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: taxonomy
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: validity
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: review
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: Notothenioidei
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: Channichthyidae
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Overview of Antarctic icefish species of the genus Channichthys Richardson, 1844 (Notothenioidei: Channichthyidae) based on morphological studies
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: Bio-Comm_69_3_162-173.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/48136/1/Bio-Comm_69_3_162-173.pdf
resources.format: Adobe PDF
resources.size: 4,37 MB