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The first evidence of intersexuality in Atka mackerel Pleurogrammus monopterygius (Hexagrammidae)

Published online by Cambridge University Press:  15 January 2021

Kristina Zhukova Open the ORCID record for Kristina Zhukova [Opens in a new window]  and
Galina Yu. Golovatyuk
Kristina Zhukova*
Affiliation:
Russian Federal Research Institute of Fisheries and Oceanography (VNIRO), Moscow, Russian Federation
Galina Yu. Golovatyuk
Affiliation:
Russian Federal Research Institute of Fisheries and Oceanography (VNIRO), Moscow, Russian Federation
*
Author for correspondence: Kristina Zhukova, 107140, 17 Verkhnaya Krasnoselskaya Street, Moscow, Russian Federation. E-mail: kzh@vniro.ru
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Summary

Histological examination of Atka mackerel ovotestes reveals the possibility of intersexuality. Individuals with bisexual gonads have been caught in the North Pacific near the south-east coast of the Kamchatka peninsula. While intersex appeared to be normal females with developing ovaries, histological analysis showed the presence of both female and male tissue in the same gonad. Specifically, primary growth, cortical alveolar and primary vitellogenic oocytes were located among spermatogonia cysts. The prevalence of intersexuality in the population was less than 0.1%.

Keywords

HistologyNorth PacificOvotestesReproductionScorpaeniformes
Type
Short Communication
Information
Zygote , Volume 29 , Issue 3 , June 2021 , pp. 249 - 251
Copyright
© The Author(s), 2021. Published by Cambridge University Press

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