Kematangan gonad dan tipe pemijahan ikan lais, Ompok miostoma (Vaillant, 1902) di Daerah Aliran Sungai Mahakam Kalimantan Timur

Jusmaldi, Jusmaldi; Solihin, Dedy Duryadi; Affandi, Ridwan; Rahardjo, M. F.; Gustiano, Rudhy

doi:10.32491/jii.v17i2.359

Cited by 8 publications

(10 citation statements)

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“…Penentuan tingkat kematangan gonad ikan tapah dilakukan secara morfologi. Pengamatan tingkat kematangan gonad ikan tapah secara morfologis mengacu pada TKG yang dimodifikasi dari ikan lais (Ompok miostoma) oleh Jusmaldi et al (2019). Gonad ikan betina TKG III, IV dan V diawetkan dengan menggunakan formalin 4% yang digunakan untuk analisis fekunditas ikan.…”

Section: Metode Pengumpulan Dataunclassified

“…Adanya perbedaan kisaran nilai IKG antara jenis kelamin ini diduga karena ikan betina yang memiliki pertumbuhan lebih cenderung pada bobot gonad. Hal ini juga serupa dengan hasil penelitian yang dilakukan oleh Jusmaldi et al (2019) pada ikan Ompok miostoma yang menemukan bahwa penambahan bobot gonad pada ikan betina lebih besar dibanding dengan penambahan bobot gonad ikan jantan. Effendie (2002) menyatakan bahwa pertambahan bobot gonad pada ikan betina dapat mencapai 10% hingga 25% dari bobot tubuhnya, sedangkan pada ikan jantan hanya mencapai 5% hingga 10% dari bobot tubuh.…”

Section: Pembahasanunclassified

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Some Aspect Biology Reproduction of the Indonesian Predatory Catfish (Wallagonia leerii Bleeker, 1851) in Sebangau River Central Kalimantan

Riza¹,

Butet

Kamal

et al. 2021

JPSL

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Tapah fish (Wallagonia leerii) is one of the economically valuable and popular fish species because its large size and make it the main target for fishing in the Sebangau River. It is feared that excessive exploitation of these fish can cause a decline and threaten the sustainability of tapah fish, which up to now still depend on nature. This research aimed to describe reproductive biology of tapah fish related to sex ratio, gonad maturity, gonado-somato index and fecundity. A total of 96 fish samples were collected using fishing trap and seine net for three months at five sampling sites in Sebangau River. The results showed that the sex ratio of male and female for all samples were 1:0.9 and Chi-square test with a 95% confidence interval showed approaching to 1:1 ratio. The GSI value of male and female ranged from 0,110% – 0,522% and 0,112% – 0,651%. The spawning times were recorded from Desember to January. The total fecundity of 11 female ranged from 2976 to 155501 eggs with an average of 43334 eggs.

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Section: Metode Pengumpulan Dataunclassified

Section: Pembahasanunclassified

Some Aspect Biology Reproduction of the Indonesian Predatory Catfish (Wallagonia leerii Bleeker, 1851) in Sebangau River Central Kalimantan

Riza¹,

Butet

Kamal

et al. 2021

JPSL

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“…The egg diameter frequency distribution was obtained from egg diameter data measured using an ocular micrometer and made in a histogram graphic (Jusmaldi et al, 2018).…”

Section: Egg Diameter Frequency Distributionmentioning

confidence: 99%

Reproductive performance of catfish Clarias sp. with probiotics Bacillus sp. NP5 addition through feed

Ayuningtyas

Zairin

Widanarni

2020

Jurnal Akuakultur Indonesia

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ABSTRACT The intensification of catfish culture requires a regular and sustainable good seeds quality. Microbial-based aquaculture with probiotic application is expected to improve the reproductive performance of catfish. The aim of this study was to evaluate the reproductive performance of catfish given probiotics Bacillus sp. NP5 with different concentrations through feed. This study used a Completely Randomized Block Design (CRBD) with the administration of probiotic Bacillus sp. NP5 at 2% concentration of 108 CFU/mL and 1010 CFU/mL in feed given and control (without probiotics), then repeated four times. Catfish broodstocks with an average size of 955 ± 261.27 g were kept in a net sized 1 m×1 m×1 m with seven broodstocks per net. Parameters observed included the Gonadosomatic Index (GSI), fecundity, number of matured eggs, frequency distribution of egg diameter, fertilization rate, and hatching rate. The result showed that the GSI value of female catfish broodstock was significantly different in sixth week as the highest value was obtained from 1010 CFU/mL probiotics with 5.19%. Moreover, the fecundity of all treatments showed significantly different results (P<0.05) as the highest value was on the concentration of 1010 CFU/mL Bacillus sp. NP5 with 137,123 ± 32,635 eggs/broodstock. This study concludes that the administration of probiotics Bacillus sp. NP5 with 1010 CFU/mL in feed given to catfish broodstock increases the fecundity (137,123 eggs/broodstock), GSI (5.19%), number of matured eggs percentage (64.50%), and hatching rate (82.53%). Keywords: Bacillus sp. NP5, catfish, reproductive performance ABSTRAK Intensifikasi budidaya ikan lele menuntut penyediaan benih yang berkualitas secara teratur dan berkelanjutan. Budidaya berbasis mikroba diharapkan dapat meningkatkan kinerja reproduksi ikan lele. Tujuan penelitian ini adalah mengevaluasi performa reproduksi ikan lele yang diberi probiotik Bacillus sp. NP5 dengan konsentrasi berbeda melalui pakan. Penelitian ini menggunakan rancangan acak kelompok lengkap (RAKL) dengan pemberian probiotik Bacillus sp. NP5 pada konsentrasi 108 CFU/mL dan 1010 CFU/mL sebanyak 2% dari pakan yang diberikan serta kontrol (tanpa pemberian probiotik), masing-masing dengan empat ulangan. Induk ikan lele dengan ukuran 955 ± 261.27 g dipelihara pada jaring hapa ukuran 1 m × 1 m × 1 m sebanyak tujuh ekor per jaring hapa. Parameter yang diamati meliputi indeks kematangan gonad (IKG), fekunditas, jumlah telur matang, sebaran frekuensi diameter telur, derajat pembuahan, dan derajat penetasan. Hasil penelitian menunjukkan bahwa nilai IKG induk betina ikan lele berbeda nyata pada minggu keenam dengan nilai tertinggi diperoleh pada perlakuan probiotik 1010 CFU/mL yaitu sebesar 5.19%. Selain itu, fekunditas semua perlakuan menunjukkan hasil yang berbeda nyata (P<0.05) dengan nilai tertinggi pada perlakuan pemberian probiotik Bacillus sp. NP5 dengan konsentrasi 1010 CFU/mL sebesar 137,123 ± 32,635 telur/induk. Kesimpulan, pemberian probiotik Bacillus sp. NP5 dengan konsentrasi 1010 CFU/mL melalui pakan kepada induk ikan lele mampu meningkatkan nilai fekunditas 137,123 telur/induk, GSI 5,19%, persentase jumlah telur matang 64,50% dan derajat penetasan telur 82,53%. Kata kunci: Bacillus sp., ikan lele, performa reproduksi

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“…Jenis ikan yang memiliki nilai ekologis dan bersifat endemik seperti Gastromyzon psiloetron dan Ompok miostoma (Tan 2006, Jusmaldi et al 2019; jenis langka dan bernilai ekonomis seperti Tor tambroides (Haryono & Subagja 2008, KKP 2012, serta Homaloptera stephensoni dan Syncrossus hymenophysa yang memiliki bentuk dan warna tubuh menarik sehingga berpotensi untuk dikembangkan menjadi ikan hias budi daya (Froese & Pauly 2019, Kristianti et al 2017.…”

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Diversity, potentiality, and conservation status of fish fauna in the upper Mahakam’s tributaries, East Kalimantan

2019

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Diversity, potentiality and conservation status of fish fauna in upper Mahakam’s tributaries of east Kalimantan is unknown. The purposes of this study were to analysis species diversity, determine potentiality and conservation status of fish fauna in upper Mahakam’s tributaries, east Kalimantan. Fish sampling with purposive method was conducted in four tributaries, i.e Tepai River, Pahangai River, Danum Parai River, and Meraseh River for one month. Fishes were collected by several gears type. The results of this research showed that the total number of fish caught was 820 individuals; consist of 26 species, 7 families, and 4 orders. The Cyprinidae was the most dominant family found in all tributaries. The Shannon-Wiener diversity index in four tributaries were varied and ranging from 1.749-2.087. The highest fish diversity was recorded at Maraseh River followed by Pahangai River, Danum Parai River, and Tepai River. The low fish diversity was discovered at Tepai River may be due to differences in substrate type, water velocity, and water depth as compared to the Maraseh River, Pahangai River, Danum Parai River. The fish species similarity coefficient between four tributaries ranged from 0.606-0.842 and the highest dissimilarity was found between Tepai River and Danum Parai River. Almost all fishes categorized as edible fish for local consumption. Syncrossus hymenophysa and Gastromyzon lepidogaster have potential as ornamental fish. Regarding IUCN red list status, six fish species were grouped into least concern status, two species as data deficient, one species as near threatened, one species as endangered species and 16 other species were not on the list.

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Kematangan gonad dan tipe pemijahan ikan lais, Ompok miostoma (Vaillant, 1902) di Daerah Aliran Sungai Mahakam Kalimantan Timur

Cited by 8 publications

References 0 publications

Some Aspect Biology Reproduction of the Indonesian Predatory Catfish (Wallagonia leerii Bleeker, 1851) in Sebangau River Central Kalimantan

Some Aspect Biology Reproduction of the Indonesian Predatory Catfish (Wallagonia leerii Bleeker, 1851) in Sebangau River Central Kalimantan

Reproductive performance of catfish Clarias sp. with probiotics Bacillus sp. NP5 addition through feed

Diversity, potentiality, and conservation status of fish fauna in the upper Mahakam’s tributaries, East Kalimantan

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