Preliminary results on the ovarian histology of rabbitfish Siganus rivulatus (Forsskal, 1775) in the southern Aegean Sea, Turkey Cover

.blurhash-client-img { display: none !important; }

Preliminary results on the ovarian histology of rabbitfish Siganus rivulatus (Forsskal, 1775) in the southern Aegean Sea, Turkey

Oceanological and Hydrobiological Studies

Volume 49 (2020): Issue 3 (September 2020)

By: Serhat Engin, Ozan Soykan, Hasan Cerim and Anıl Gülşahin

Open Access

|Sep 2020

Figures & Tables

Sampling locations (indicated by black dots) to determine the ovarian histology in the marbled spinefoot from Gökova Bay, the southern Aegean Sea

Length–weight relationship for female marbled spinefoot from the southern Aegean Sea

Monthly gonadosomatic index (GSI) for females of the marbled spinefoot Siganus rivultaus in the southern Aegean Sea

Mature (stage IV) female marbled spinefoot sampled from the southern Aegean Sea

Six-month ovarian cycle of S. rivulatus. While ovarian cells in the first and second development phase were observed in June and July, only the first development stage and mitotic ovarian cells were found during the other months; A – June, B – July, C – August, D – September, E – October, F – November; scale – 50 μm

Six-month ovarian cycle of S. rivulatus. While ovarian cells of the first and second development phase were observed in April and May, only the first development stage and ovarian cells were found during the other months; A – December, B – January, C – February, D – March, E – April, F– May; scale – 50 μm

First development phase of ovarian cells; A – chromatin-nuclear period, B – chromatin-nuclear period, perinuclear period; scale – 30 μm

Components of ovarian cells; A – post-vitellogenesis period, B, C – perinuclear period, Pa – perinuclear area, Kr – chromatin, N – nucleus, Nu – nucleolus, Te – theca cells, Gr – granulosa cells, Zr – zona radiata, F – follicle

First stage of the second development phase, early vitellogenesis; yolk phase I; A: cortical alveoli phase, B: accumulated vitellin globules around the nucleus observed during the period of cortical alveoli; Ka: cortical alveoli, Zr: zona radiata; scale: 30 μm

Maturing phase of ovarian cells; A – accumulated fat globules around the nucleus, B – fat globules come together and form fat droplets, C – movement of the germinal vesicle into the animal pole O – oil droplets, Vg – vitelline globules; scale: 10 μm

Monthly changes in the sexual maturity stages of Siganus rivulatus in the southern Aegean Sea

Years	Months	Sexual maturity stages
2017	February	II
	March	II
	April	III
	May	III
	June	III
	July	IV
	August	V
	September	V
	October	V
	November	V
	December	I
2018	January	I

DOI: https://doi.org/10.1515/ohs-2020-0019 | Journal eISSN: 1897-3191 | Journal ISSN: 1730-413X

Journal RSS Feed

Language: English

Page range: 207 - 214

Submitted on: Dec 12, 2019

Accepted on: Jan 24, 2020

Published on: Sep 25, 2020

Published by: University of Gdańsk

In partnership with: Paradigm Publishing Services

Publication frequency: 4 issues per year

Keywords:

fisheries management,

Related subjects:

Chemistry, other,

Geosciences, other,

Life sciences, other

© 2020 Serhat Engin, Ozan Soykan, Hasan Cerim, Anıl Gülşahin, published by University of Gdańsk
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Volume 49 (2020): Issue 3 (September 2020)Next article