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All Journal JFMR (Journal of Fisheries and Marine Research) Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan
Kembaren, Duranta D
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Engineering Environmental Science

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Reproductive biology of mackerel scad (Decapterus macarellus Cuvier, 1833) in The North Halmahera waters Restiangsih, Yoke Hany; Fauzi, Moh; Taufik, Muhammad; Kembaren, Duranta D; Lestari, Pratiwi; Yahya, Muhammad Fadli; Nuratmojo, Nuratmojo
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 14, No 2 (2025): JUNE 2025
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.14.2.42279

Abstract

Studying the biological reproduction of fish is important for determining the spawning season and providing several management options to protect the fisheries. The study conducted length and biology reproduction sampling of Mackerel scad (Decapterus macarellus) caught by mini purse seine landed in Tobelo coastal fishing port during 20152016. The total sample consisted of 1228 individuals, 526 males and 671 females with size distributions ranging from 12.50 to 29.90 cmFL. Results showed that there were 432 immature and 94 mature male fish and 582 immature and 89 mature female fish. The growth pattern for male fish is negative allometric (b3) while for females is isometric (b=3). The highest GSI value for male was recorded during May and November, while for females it was in May and October. Based on this result, the spawning season of mackerel scad in the North Halmahera waters is predicted to occur in March-May and August-October, by the first and second transition seasons. The study found that the length at first maturity (Lm) was 24.90 cmFL for male fish and 26.41 cmFL for female fish, the Lm bigger than Length at first capture (Lc) of 21.93 cmFL. This means the fish was caught before mature gonads and had a chance to spawn.Keywords:Mackerel scadSmall pelagic fishHalmahera watersGonadosomatic indexSpawning season
Reproductive biology of mackerel scad (Decapterus macarellus Cuvier, 1833) in The North Halmahera waters Restiangsih, Yoke Hany; Fauzi, Moh; Taufik, Muhammad; Kembaren, Duranta D; Lestari, Pratiwi; Yahya, Muhammad Fadli; Nuratmojo, Nuratmojo
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 14, No 2 (2025): JUNE 2025
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.14.2.42279

Abstract

Studying the biological reproduction of fish is important for determining the spawning season and providing several management options to protect the fisheries. The study conducted length and biology reproduction sampling of Mackerel scad (Decapterus macarellus) caught by mini purse seine landed in Tobelo coastal fishing port during 20152016. The total sample consisted of 1228 individuals, 526 males and 671 females with size distributions ranging from 12.50 to 29.90 cmFL. Results showed that there were 432 immature and 94 mature male fish and 582 immature and 89 mature female fish. The growth pattern for male fish is negative allometric (b3) while for females is isometric (b=3). The highest GSI value for male was recorded during May and November, while for females it was in May and October. Based on this result, the spawning season of mackerel scad in the North Halmahera waters is predicted to occur in March-May and August-October, by the first and second transition seasons. The study found that the length at first maturity (Lm) was 24.90 cmFL for male fish and 26.41 cmFL for female fish, the Lm bigger than Length at first capture (Lc) of 21.93 cmFL. This means the fish was caught before mature gonads and had a chance to spawn.Keywords:Mackerel scadSmall pelagic fishHalmahera watersGonadosomatic indexSpawning season
Reproductive Aspects of Banana Prawn (Fenneropenaeus Merguiensis) For Recommendations of The South Sorong MPA Zone Dhani, Arya Kusuma; Marsan, Ehdra Beta; Kembaren, Duranta D; Mansur, Mr.; Rotinsulu, Christovel
JFMR (Journal of Fisheries and Marine Research) Vol. 4 No. 1 (2020): JFMR
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2020.004.01.22

Abstract

Reproduction aspects of banana prawn were important in determining of the fisheries management. These results can indicate the condition of fisheries that are or will be managed. Banana prawn was one of the main commodities in South Sorong fisheries. This study aims to estimate some of the reproductive aspects of Fenneropenaeus merguiensis as part of a management measure to determining the zone to be a no-take zone area in the prospective area of South Sorong MPAs. The data analyzed were from data collecting from January to December 2018 in three sampling sites in South Sorong, among others Inanwatan, Bakoi, and Konda with the results of 5,009 carapace length samples, 4,589 including sex observation and 3,621 including banana prawn GMS observations. Data analysis performed by analyzing the distribution of carapace length frequency, sex ratio, length-weight relationship, length at first maturity (Lm50), and length at first captured (Lc50). The results of this analysis showed that the ratio between male and female gender was not balanced, with male gender to be less with a ratio of 0.4: 1.4 overall in NTZ 2 and 3. Comparison of Lc and Lm in NTZ 2 and NTZ 3 were respectively Lc < Lm and Lc > Lm. More fishing pressure will have implications to reduce the average size of banana prawn caught. Overall, NTZ 3 had relatively more stable conditions compared to NTZ 2.
Co-Authors Dhani, Arya Kusuma Lestari, Pratiwi Mansur, Mr. Marsan, Ehdra Beta Moh Fauzi, Moh MUHAMMAD TAUFIK Nuratmojo, Nuratmojo Restiangsih, Yoke Hany Rotinsulu, Christovel Yahya, Muhammad Fadli