• Title/Summary/Keyword: Elasmobranchii

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A Review of Taxonomic Studies and Common Names of Rajid Fishes (Elasmobranchii, Rajidae) from Korea (한국산 홍어류 (판새아강, 홍어과) 어류의 분류학적 연구 현황과 국명검토)

  • Jeong, Choong-Hoon
    • Korean Journal of Ichthyology
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    • v.11 no.2
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    • pp.198-210
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    • 1999
  • Based on the reviewing the present specimens and published data, taxonomic revision about the Korean names and distributional ranges of the rajid fishes (Rajidae) in Korea was conducted. As a result, the family Rajidae from Korea was classified into 4 genera encompassing 11 species, Bathyraja bergi, B. isotrachys, Dipturus kwangtungensis, D. macrocauda, D. tengu, Okamejei acutispina, O. boesemani, O. kenojei, O. meerderooortii, Raja koreana and R. pulchra. Proposed new Korean names are "Salhongeo-sok" for the genus Dipturus and the "Hongeo-sok" for the genus Okamejei, because those are elevated from subgeneric to generic rank recently. In particular, the new korean names are needed to be given that, the genus Raja is "Chamhongeo-sok" and R. pulchra is "Chamhongeo". The occurrence of Bathyraja bergi is recognized as in the Korean waters according to this revision. The check list and the map of geographic distributions of 11 species of Rajidae from Korea are presented.

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Reproductive biology of 58 fish species around La Réunion Island (Western Indian Ocean): first sexual maturity and spawning period

  • Kelig Mahe;Julien Taconet;Blandine Brisset;Claire Gentil;Yoann Aumond;Hugues Evano;Louis Wambergue;Romain Elleboode;Tevamie Rungassamie;David Roos
    • Journal of Animal Reproduction and Biotechnology
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    • v.39 no.1
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    • pp.31-39
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    • 2024
  • Background: The biological information of fish, which include reproduction, is the prerequisite and the basis for the assessment of fisheries. Methods: The aim of this work was to know the reproductive biology with the first sexual maturity (TL50) and the spawning period for 58 mainly fish species in the waters around La Réunion Island (Western Indian Ocean). Twenty families belonging to the Actinopterygii were represented (acanthuridae, berycidae, bramidae, carangidae, cirrhitidae, gempylidae, holocentridae, kyphosidae, labridae, lethrinidae, lutjanidae, malacanthidae, monacanthidae, mullidae, polymixiidae, pomacentridae, scaridae, scorpaenidae, serranidae, sparidae; 56 species; n = 9,751) and two families belonging to the Elasmobranchii (squalidae, centrophoridae; 2 species; n = 781) were sampled. Between 2014 and 2022, 10,532 individuals were sampled covering the maximum months number to follow the reproduction periods of these species. Results: TL50 for the males and the females, respectively, ranged from 103.9 cm (Acanthurus triostegus) to 1,119.3 cm (Thyrsitoides marleyi) and from 111.7 cm (A. triostegus) to 613.1 cm (Centrophorus moluccensis). The reproduction period could be very different between the species from the very tight peak to a large peak covered all months. Conclusions: Most species breed between October and March but it was not the trend for all species around La Réunion Island.