Discovery of Pelagic Eggs of Two Species from the Rare Mesopelagic Fish Genus Trachipterus (Lampriformes: Trachipteridae)

The ecology of the mesopelagic fish genus Trachipterus, which is rarely found in oceans, remains unclear. In this study, we found 22 eggs of T. trachypterus and T. jacksonensis around the Ulleung Basin of the East/Japan Sea during ichthyoplankton surveys from 2019 to 2021. The eggs were identified t...

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Bibliographic Details
Published inJournal of marine science and engineering Vol. 10; no. 5; p. 637
Main Authors Choi, Hae-young, Choi, Hee-chan, Kim, Sung, Oh, Hyun-ju, Youn, Seok-hyun
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.05.2022
Subjects
Bar codes
Biogeography
Ecology
Eggs
Fish
Genes
Genetic relationship
Ichthyoplankton
Ichthyoplankton surveys
mesopelagic fish
Mitochondrial DNA
mitochondrial DNA sequence
Oceans
pelagic fish eggs
Rare species
rRNA
Spawning
Trachipterus
Trachipterus jacksonensis
Trachipterus trachypterus
United States > US
Japan
Germany
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Summary:The ecology of the mesopelagic fish genus Trachipterus, which is rarely found in oceans, remains unclear. In this study, we found 22 eggs of T. trachypterus and T. jacksonensis around the Ulleung Basin of the East/Japan Sea during ichthyoplankton surveys from 2019 to 2021. The eggs were identified through genetic relationships with the genus Trachipterus based on partial sequences (COI and 16S) or concatenated sequences of 13 protein-coding genes and 2 rRNA genes of mitochondrial DNA. T. trachypterus eggs were discovered in all seasons, but more frequently during the winter. One T. jacksonensis egg that appeared during the autumn was the first in the northwestern Pacific Ocean. Identifying Trachipterus pelagic eggs would provide insight into their spawning ecology and biogeography.
ISSN:2077-1312
2077-1312
DOI:10.3390/jmse10050637