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Sex Changes and Gonad Maturity of Rivulated Parrotfish Scarus rivulatus (Valenciennes, 1840) from Seribu Islands, Indonesia

ILMU KELAUTAN: Indonesian Journal of Marine Sciences · Vol. 28 No. 2 (2023) · hlm. 203–216

DOI
10.14710/ik.ijms.28.2.203-216
ISSN
2406-7598, 0853-7291
Terbit
2023-06-10
Penerbit
Marine Science Department Diponegoro University
Bahasa
eng
Lisensi
creativecommons.org/licenses/by-sa/4.0

Abstrak

Parrotfish (Scarus rivulatus) is a species that can undergo sex change at a certain age and size (hermaphrodite protogynous). This study aims to analyze the process of sex change based on body color and gonadal tissue changes, as well as the gonadal development of the fish. Sampling was conducted monthly from January to September 2022. Fish samples were collected from fishermen in Seribu Islands. The parameters observed were sex, gonad maturity stage, body color changes, and anatomy and histology of the gonad. The samples were 1605 individuals, consisted of 831 females, 309 primary males (initial phase of males), and 465 secondary males (terminal phase of males). The total length of these fish ranged 8.8- 22.4 cm (females), 10.5-22.6 cm (primary males of males), and 15.1-28.1 cm (secondary males). Morphological differences between female fish, primary males, and secondary males are generally showed in body size, fin size, and body coloration. The histological analysis results of the gonads of primary male fish was indicated by the presence of residual perinucleolar oocytes in the layer of the gonads that coexist with sperm tissue. The body size of first mature gonads was 13.0 cm (female), 16.6 cm (primary male), and 17.6 cm (secondary male). Gonadal maturity stage (GMS) III and IV dominated each observation time. Hence, it was suspected that the fish spawned throughout the year. However, based on the distribution of the GMS, there was an increase in reproductive activity in January-March and July-September, with peak spawning in March and September.

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  • IPB University
  • Hasanuddin University
  • University of Rhode Island
  • University of Rostock
  • Leibniz Centre for Tropical Marine Research
  • Universitas Jambi
  • Padjadjaran University
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Rekan penulisOrganisasiArtikel bersama
Yusli WardiatnoIPB University3
Nurlisa Alias ButetIPB University3
Sulistiono SulistionoIPB University3
Luky AdriantoIPB University1
Agus Alim HakimIPB University1
Risa TiuriaIPB University1
Muhammad Raihan PambudiIPB University1
A YantiHasanuddin University1
Nurfajar NurfajarIPB University1
Sebastian C. A. FerseLeibniz Centre for Tropical Marine Research1
Ambo TuwoHasanuddin University1
Hawis H MadduppaIPB University1
Inna Puspa AyuIPB University1
Beginer SubhanIPB University1
Lalu M. Iqbal SaniIPB University1
Nadya Jeny IriandaIPB University1
Ester Restiana Endang GelisUniversitas Jambi1
Christopher E. LaneUniversity of Rhode Island1
Erin M. BorbeeUniversity of Rhode Island1
Yusli WardiantoIPB University1
Joko SantosoIPB University1
Mennofatria BoerIPB University1
Achmad FarajallahIPB University1
Neviaty Putri ZamaniIPB University1
Dietriech Geoffrey BengenIPB University1
Audina PutriIPB University1
Ummu SalmaIPB University1
Novian Prahandhy KusumaIPB University1
Nanda T DiningsihIPB University1
Etty RianiIPB University1
Rita RostikaPadjadjaran University1
Sigid HariyadiIPB University1
Ghinarrahmi AfiyatillahIPB University1
Charles P.H. SimanjuntakIPB University1
Ichsan Suryo WibowoIPB University1
Niken Tunjung Murti PratiwiIPB University1

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Sumber metadata: OAI-PMH (metadata jurnal) http://ejournal.undip.ac.id/index.php/ijms/oai, pertama di-harvest 8 Nov 2026, terakhir terlihat 8 Nov 2026.
Metadata asli (oai_dc) 
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	<dc:title xml:lang="en-US">Sex Changes and Gonad Maturity of Rivulated Parrotfish Scarus rivulatus (Valenciennes, 1840) from Seribu Islands, Indonesia</dc:title>
	<dc:creator>Yanti, Asri</dc:creator>
	<dc:creator>Sulistiono, Sulistiono</dc:creator>
	<dc:creator>Mashar, Ali</dc:creator>
	<dc:creator>Kleinertz, Sonja</dc:creator>
	<dc:subject xml:lang="en-US">Parrotfish; sex change; gonad maturity</dc:subject>
	<dc:description xml:lang="en-US">Parrotfish (Scarus rivulatus) is a species that can undergo sex change at a certain age and size (hermaphrodite protogynous). This study aims to analyze the process of sex change based on body color and gonadal tissue changes, as well as the gonadal development of the fish. Sampling was conducted monthly from January to September 2022. Fish samples were collected from fishermen in Seribu Islands. The parameters observed were sex, gonad maturity stage, body color changes, and anatomy and histology of the gonad. The samples were 1605 individuals, consisted of 831 females, 309 primary males (initial phase of males), and 465 secondary males (terminal phase of males). The total length of these fish ranged 8.8- 22.4 cm (females), 10.5-22.6 cm (primary males of males), and 15.1-28.1 cm (secondary males). Morphological differences between female fish, primary males, and secondary males are generally showed in body size, fin size, and body coloration. The histological analysis results of the gonads of primary male fish was indicated by the presence of residual perinucleolar oocytes in the layer of the gonads that coexist with sperm tissue. The body size of first mature gonads was 13.0 cm (female), 16.6 cm (primary male), and 17.6 cm (secondary male). Gonadal maturity stage (GMS) III and IV dominated each observation time. Hence, it was suspected that the fish spawned throughout the year.  However, based on the distribution of the GMS, there was an increase in reproductive activity in January-March and July-September, with peak spawning in March and September. </dc:description>
	<dc:publisher xml:lang="en-US">Marine Science Department Diponegoro University</dc:publisher>
	<dc:date>2023-06-10</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:type xml:lang="en-US"></dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejournal.undip.ac.id/index.php/ijms/article/view/52977</dc:identifier>
	<dc:identifier>10.14710/ik.ijms.28.2.203-216</dc:identifier>
	<dc:source xml:lang="en-US">ILMU KELAUTAN: Indonesian Journal of Marine Sciences; Vol 28, No 2 (2023): Ilmu Kelautan; 203-216</dc:source>
	<dc:source>2406-7598</dc:source>
	<dc:source>0853-7291</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://ejournal.undip.ac.id/index.php/ijms/article/view/52977/pdf</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2023 ILMU KELAUTAN: Indonesian Journal of Marine Sciences</dc:rights>
	<dc:rights xml:lang="en-US">https://creativecommons.org/licenses/by-sa/4.0</dc:rights>
</oai_dc:dc>