Indeks Kematangan Gonad dan Ukuran Pertama Kali Matang Gonad Ikan Selar Bentong (Selar crumenophthalmus BLOCH, 1793) di Perairan Kwandang, Gorontalo Utara

Muharam, Nur Hadi; Kantun, Wayan; Moka, Wilma

doi:10.31605/siganus.v2i1.776

Cited by 3 publications

(3 citation statements)

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“…Indikasinya bahwa ikan selar kuning yang didaratkan di TPI Oeba tergolong ikan-ikan yang masih sementara berkembang gonadnya dari ikan muda menuju dewasa. Menurut Muharam et al (2020) nilai IKG ikan selar Jantan dan betina mengalami peningkatan seiring dengan meningkatnya Tingkat kematangan gonad (TKG). Hal ini menunjukkan adanya hubungan antara IKG dan TKG.…”

Section: Hasil Dan Pembahasanunclassified

“…Sedangkan berdasarkan tingkat kematangan gonad (TKG), IKG ikan selar kuning betina lebih tinggi dari jantan, karena volume ovari lebih besar dari testes (Gambar 4). Menurut (Sangadji, 2014); (Muharam et al, 2020); (Abudi & Nane, 2021) menyatakan bahwa IKG semakin meningkat dan akan mencapai nilai maksimum pada saat akan terjadi pemijahan, setelah memijah nilai IKG akan menurut drastis. Perubahan yang terjadi di dalam gonad secara kuantitatif dapat diketahui dari nilai IKG.…”

Section: Hasil Dan Pembahasanunclassified

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Biologi Reproduksi Ikan Selar Kuning (Selaroides leptolepis Cuvier, 1833) Di Tempat Pendaratan Ikan Kelurahan Oeba Kota Kupang

Ginzel,

Kase

2024

J. Mar. Res.

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Tempat Pendaratan Ikan (TPI) Oeba merupakan salah satu fasilitas atau tempat terjadinya transaksi penjualan hasil tangkapan ikan di Kota Kupang. Hasil tangkapan nelayan didaratkan di TPI Oeba beraneka ragam jenis terdiri dari ikan pelagis kecil dan besar, ikan demersal serta hasil laut lainnya. Ikan selar kuning (Selaroides keptolepis Cuvier, 1833) merupakan salah satu jenis ikan pelagis kecil hasil tangkapan nelayan yang didaratkan di TPI Oeba Kota Kupang. Jenis ikan ini termasuk ikan ekonomis penting yang sangat diminati oleh masyarakat di Kota Kupang. Penangkapan ikan selar kuning (Selaroides keptolepis Cuvier, 1833) terjadi selama musim tangkap di sekitar pesisir pantai. Adanya penangkapan secara terus menerus kemungkinan akan berpengaruh terhadap beberapa aspek biologi reproduksi seperti ukuran dan sebaran panjang, tingkat kematangan gonad, indeks kematangan gonad dan faktor kondisi. Tujuan penelitian ini adalah mendeskripsikan aspek biologi reproduksi ikan selar kuning (Selaroides keptolepis Cuvier, 1833) yang didaratkan di TPI Oeba Kota Kupang. Metode penelitian yang digunakan adalah survei pasar, dengan teknik pengambilan data dilakukan secara random sampling. Waktu penelitian dilakukan selama bulan Oktober-November. Berdasarkan analisis hubungan panjang berat, maka pola pertumbuhan ikan selar kuning (Selaroides keptolepis Cuvier, 1833) yang didaratkan di TPI Oeba bersifat allometric negatif dengan nilai b < 3. Sebaran ukuran panjang ikan selar kuning antara bulan Oktober dan November berbeda. Hasil pengamatan visual terhadap tingkat kematangan gonad terdiri dari TKG I, II dan III. Indeks kematangan gonad tertinggi pada TKG III yaitu 0,967 (ikan jantan) dan 1,012 (ikan betina). Nilai faktor kondisi ikan selar bulan Oktober-November sebesar 1. Oeba Fish Landing Site (TPI) is one of the facilities or places where fish catch sales transactions occur in Kupang City. Fishermen's catches are landed at TPI Oeba in various types consisting of small and large pelagic fish, demersal fish and other marine products. Yellowstip shad (Selaroides leptolepis Cuvier, 1833) is one of the small pelagic fish caught by fishermen landed at Oeba TPI in Kupang City. This fish species is an economically important fish that is highly demanded by the people in Kupang City. Catching yellowstrip shad (Selaroides leptolepis Cuvier, 1833) occurs during the fishing season around the coast. The existence of continuous fishing is likely to affect several aspects of reproductive biology such as size and length distribution, gonad maturity level, gonad maturity index and condition factors. The purpose of this study is to describe the reproductive biology aspects of yellowstrip shad (Selaroides leptolepis Cuvier, 1833) landed at TPI Oeba, Kupang City. The research method used was a market survey, with data collection techniques carried out by random sampling. The research time was conducted during October-November. Based on length-weight relationship analysis, the growth pattern of yellowstrip shad (Selaroides keptolepis Cuvier, 1833) landed at Oeba TPI is negative allometric with the value of b < 3. Length distribution of yellwstrip shad between October and November is different. Visual observation of gonad maturity level consisted of TKG I, II and III. The highest gonad maturity index in TKG III is 0.967 (male) and 1.012 (female). The value of the condition factor of yellowstrip shad in October-November was 1.

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Section: Hasil Dan Pembahasanunclassified

Biologi Reproduksi Ikan Selar Kuning (Selaroides leptolepis Cuvier, 1833) Di Tempat Pendaratan Ikan Kelurahan Oeba Kota Kupang

Ginzel,

Kase

2024

J. Mar. Res.

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“…The gonad maturity index is a comparison of gonad weights with body weights used in general to analyze the reproductive cycle [29]. GMI with a high value indicates a peak of gonad maturity followed by increasing body weight, and the value will decrease when the fish has gone through the spawning process based on [30] and [31]. Based on the GMI of fish in the males fish was high in March 2018, June 2018, September 2018, and January 2019.…”

Section: Gonad Maturity Indexmentioning

confidence: 99%

Reproductive biology of endemic sailfin silversides fish Telmatherina antoniae Kottelat, 1991 in Matano Lake, South Sulawesi

Agustini,

Kamal,

Mashar

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Sailfin silversides (Telmatherina antoniae) is an endemic species from Matano Lake, South Sulawesi. This study aims to learn about sailfin silversides’ reproductive aspects including sex ratio, length at first maturity, gonad maturity stage, gonad maturity index, fecundity, and egg diameter. Fish samples were taken using multifilament nets from March 2018 until February 2019. A total of 1,792 individuals fish comprises 922 males and 870 females were captured during the study period. The sex ratio was found in a balanced condition with 1.06:1. Length at first maturity for males and females were 48.08-57.73 mm and 56.78-68.55 mm, respectively. Based on sailfin silversides’ gonad maturity stage and maturity index are thought to be year-round spawning with a peak spawning season around March. The reproductive potential of sailfin silversides fish is estimated to be 179–1,690 eggs. Based on the egg diameter distribution, the sailfin silversides fish is classified as a partial spawner.

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Inclusive rice seed business: Performance and sustainability

Prasetyo,

Arianti,

Jauhari

et al. 2023

Open Agriculture

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A collective action approach to rice seed production is an inclusive method involving the community’s active participation at all stages of its execution. This all-inclusive strategy, however, has yet to be thoroughly investigated and published. This study explored how and to what degree an inclusive rice seed business of Gapoktan, based on a collective action approach, might be deployed in a sustainable rice seed company run by community groups. The research comprised the following stages: (1) establishment of a seed production business institution, (2) production of rice seeds, and (3) self-assessment of the performance of the seed production business institution. Institutional data were acquired through a questionnaire that references the European Foundation for Quality Management’s (EFQM) methodology. Three dimensions used were direction (purpose, vision, and strategy; organizational culture and leadership); execution (engaging stakeholders; coasting sustainable value; driving performance transformation); and result (stakeholder perceptions; strategic and operational performance). The study suggests essential findings: The organizational structure of rice seed producers formed is complete regarding its operational functions. The rice seeds produced by Gapoktan have met both the volume and quality standards. From a financial perspective, this rice seed production unit is feasible for further development. However, their social orientation is still relatively high and needs to be more profit-oriented. Uniquely, not all members buy and use Gapoktan seeds. As a result, additional efforts are necessary to provide exceptional service to Gapoktan members.

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Indeks Kematangan Gonad dan Ukuran Pertama Kali Matang Gonad Ikan Selar Bentong (Selar crumenophthalmus BLOCH, 1793) di Perairan Kwandang, Gorontalo Utara

Cited by 3 publications

References 4 publications

Biologi Reproduksi Ikan Selar Kuning (Selaroides leptolepis Cuvier, 1833) Di Tempat Pendaratan Ikan Kelurahan Oeba Kota Kupang

Biologi Reproduksi Ikan Selar Kuning (Selaroides leptolepis Cuvier, 1833) Di Tempat Pendaratan Ikan Kelurahan Oeba Kota Kupang

Reproductive biology of endemic sailfin silversides fish Telmatherina antoniae Kottelat, 1991 in Matano Lake, South Sulawesi

Inclusive rice seed business: Performance and sustainability

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