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All Journal Jurnal Sumberdaya Akuatik Indopasifik Omni-Akuatika Jurnal Perikanan Universitas Gadjah Mada Bawal : Widya Riset Perikanan Tangkap Jurnal Aplikasi dan Inovasi Iptek (JASINTEK)
Parawangsa, I Nyoman Yoga
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Economics, Econometrics & Finance Education Environmental Science Immunology & microbiology Other

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HABITUS COMPARASION, GROWTH PATTERN AND CONDITION OF CONVICT CICHLID (Amatitlania nigrofasciata GUNTHER, 1986) IN THREE LAKES ECOSYSTEMS IN BALI Parawangsa, I Nyoman Yoga; Tampubolon, Prawira Atmaja; Saputra, Dewa Gde Tribodhi; Pertami, Nyoman Dati
BAWAL Widya Riset Perikanan Tangkap Vol 15, No 2 (2023): (AGUSTUS) 2023
Publisher : Politeknik Kelautan dan Perikanan Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/bawal.15.2.2023.66-75

Abstract

Convict cichlid (Amatitlania nigrofasciata) belonging to the Cichilidae family has inhabited in Tamblingan Lake, Buyan Lake and Beratan Lake. The existence of this fish species is suspected due to accidental introduction activities. The aims of this study ware to reveal differences in habitus, growth patterns and conditions of convict cichlid in the three lakes on the island of Bali. Samples of convict cichlid were taken by bubu traps, that placed in the littoral zone of the lake. 19 morphometric characters were measured using a digital caliper, then each fish sample was weighed. The growth pattern and condition of convict cichlid are known by using the equation of the length-weight relationship and the condition factor. There were 888 individuals of convict cichlid caught during this study, consisted of 385 fish from Tamblingan Lake, 371 fish from Buyan Lake, and 132 fish from Beratan Lake. Moreover, 108 fish consisting of 36 fish from each lake were further analyzed by measuring 17 additional morphometric characters. The results of measuring the morphometric characters of the observed convict cichlid had different variations for the characters of head length and predorsal length. There was diversity for several morphometric characters of the convict cichlid in Buyan Lake which are a collaboration of characters between the convict cichlid in Tamblingan Lake and in Beratan Lake, namely on the basic characteristics of the anal fin, dorsal fin base, body length, postorbital length, and tail height. The growth pattern of this species in the three lakes was negative allometric and the condition of this fish species was in good condition with the average value of condition factor ranging from 0.95–1.05.
Food and Feeding Habits of Osteochilus vittatus Valenciennes, 1842 and Barbodes binotatus Valenciennes, 1842, in Tamblingan Lake, Bali Sathyananta, Kadek Prayuda; Pertami, Nyoman Dati; Parawangsa, I Nyoman Yoga; Surya Pramana, Made Arya
Jurnal Perikanan Universitas Gadjah Mada Vol 26, No 2 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.97116

Abstract

Tamblingan Lake is the smallest lake in Bali and is inhabited by various species of fish, which are from the Cyprinidae family, namely bonylip barb and spotted barb. Information regarding the food and feeding habits of bonylip barb and spotted barb fish in Tamblingan Lake is unavailable. This study aims to determine and analyze the food and feeding habits of bonylip barb and spotted barb fish in Tamblingan Lake. Fish sampling was conducted from January to June 2019 in Tamblingan Lake using modified gill nets with a net size of 0.5, 1.0, 1.5, 2.0, 2.5, and 3.0 cm. Fishing was carried out at five stations with water characteristics representing the condition of Tamblingan Lake. Bonylip barb fish obtained during the study comprised 216 individuals, while the Spotted barb had 180 individuals. The average value of the relative intestinal length of bonylip barb fish ranged from 4.34 to 5.53, while that of the spotted barb fish was 0.89 to 1.30. The average value of the gastric fullness index of film fish ranges from 1.34 to 4.77, while the spotted barb is 0.32 to 0.42. The total IRI value of bonylip barb fish food in Tamblingan Lake is 924.32, while the spotted barb is 1,232.62, with the highest IRI value in both species coming from plankton. Bonylip barb and spotted barb in Tamblingan Lake developed a generalist feeding strategy with plankton food groups (planktivorous). Information related to these fishes can be used to formulate fish resource management in Tamblingan Lake.
Pendampingan Branding Dan Pemasaran Ikan Mas Koki Sebagai Komoditas Ekspor Pada Pokdakan Koiyogan Kazoku Rana Amaral, Ni Putu Anglila; Susanti, Ida Ayu Made Dwi; Parawangsa, I Nyoman Yoga
Jurnal Aplikasi dan Inovasi Iptek Vol 6 No 1 (2024): Jurnal Aplikasi dan Inovasi Iptek No. 6 Vol. 1 Oktober, 2024
Publisher : Denpasar Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52232/jasintek.v6i1.162

Abstract

Pendapatan masayarakat dapat ditingkatkan dengan adanya usaha budi daya ikan yang mempunyai target pasar yang luas. Ini disebabkan karena kecenderungan seseorang biasanya menggunakan ikan hias untuk mempercantik ruangan dan kolam kecil. Ikan hias ialah salah satu sumber devisa utama yang secara strategis menyumbang perekonomian Indonesia. Potensi ekspor yang dimiliki oleh ikan hias, dapat menjadi salah satu peluang yang dikembangkan oleh Pokdakan Koiyogan Kazoku Rana. Sehingga, diperlukan juga pendampingan karena kurangnya pemahaman mitra terhadap branding dan pemasaran. Hasil pendampingan menunjukan terjadi peningkatan pemahaman mitra terhadap branding dan pemasaran sebesar 81% (sangat paham)
Some biological aspects of indian mackerel (Rastelliger kanagurta Cuvier, 1817) in Bali Strait waters Parawangsa, I Nyoman Yoga; Tampubolon, Prawira Atmaja
Journal Omni-Akuatika Vol 19, No 2 (2023): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.oa.2023.19.2.1073

Abstract

Indian mackerel (Rastrelliger kanagurta Cuvier, 1817) is a small pelagic fish species which is the main catch commodity in purse seine and jukung fleets in the Bali Strait waters. Sustainable management is urgently needed for indian mackerel populations in Bali Strait waters to remain sustainable fishery. The availability of basic information such as biological aspects is very important as a fundamental resource in the management of indian mackerel in Bali Strait waters. The aims of this study were to reveal several biological aspects of mackerel such as growth patterns, condition factors, sex ratio, and size at first maturity of indian mackerel in Bali Strait waters. Sampling was carried out in May-September 2018. Samples of fish were taken from purse seine and jukung fleets using trawl nets and gill nets. Fish sample was measured, weighed and dissected to observe the sex and the gonadal maturity stage. The total number of indian mackerel samples was 167 individuals. Mackerel in the Bali Strait waters has a positive allometric growth pattern with fish in good condition. The sex ratio was in an unbalanced condition with the number of male fish being more than the female fish. The size at first maturity was 19.34 cm for male fish and 19.76 cm for female fish.
MORPHOREGRESSION AND CONDITION OF FRIGATE TUNA (Auxis thazard LACEPÈDE, 1800) IN SOUTH COAST OF BALI STRAIT WATERS Parawangsa, I Nyoman Yoga; Suryani, Sang Ayu Made Putri; Tampubolon, Prawira Atmaja; Wijayanti, Ni Putu Ayu; Lestari, Ni Made Dwi
BAWAL Widya Riset Perikanan Tangkap Vol 17, No 2 (2025): Agustus 2025
Publisher : Politeknik Kelautan dan Perikanan Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/bawal.17.2.2025.56 - 66

Abstract

Bali Strait water has contributed to the production of pelagic capture fisheries in FMA-573. The potential for fisheries in the Bali Strait is very diverse, especially small pelagic fish such as frigate tuna, bullet tuna, bali sardinella, scad fish and mackerel. Frigate tuna (Auxis thazard) is a pelagic fish from the Scombridae family. This fish can be found in tropical and subtropical waters. Information regarding frigate tuna on the southern coast of the Bali Strait has yet to be found to date. This research aims to reveal morphoregression, which includes the length-length relationship and growth patterns, as well as the condition of frigate tuna in the southern coastal waters of the Bali Strait for ecosystem-based fisheries management. Sampling of frigate tuna was carried out from February to July 2024. Fish samples were taken from traditional fishermen who used gill nets as fishing gear in the southern coastal waters of the Bali Strait. Each fish sample was measured for total length, fork length, and standard length and weighed to analyze the length-length relationship, growth patterns, and condition factors. The number of frigate tuna caught during the research was 356. The total length of the samples caught ranged from 274 – 416 mm, weighing 270.3 – 972.4 grams. Each character of the length of the frigate tuna has a close relationship. The fork length character is the most precise in estimating fish weight, so the fork length character is used to analyze the length-weight relationship. The growth pattern of frigate tuna is positive allometric with good conditions. The results of this research can be used as a basis for ecosystem-based management of tuna fisheries.
Tendensi Asal Sarang Penyu yang Direlokasi ke Pusat Pendidikan dan Konservasi Penyu, Serangan-Bali Parawangsa, I Nyoman Yoga; Sukanta, I Made; Budi, Eka Saktiawan; Utami, Dhita Hardiyanti
Jurnal Sumberdaya Akuatik Indopasifik Vol 8 No 1 (2024): Februari
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46252/jsai-fpik-unipa.2024.Vol.8.No.1.147

Abstract

Sea turtles are one of the living fossils that still exist. There are only 7 species of sea turtles in the world. Sea turtles have encountered many threats, even since they were still in the egg on the nesting beach. The nest of turtle eggs on the beach have some threats like predators, theft, sabrasion and coastline changes that increase the action of relocation of turtle nests are needed to save the eggs. Ths study aimed to know the estendency of native places from the eggs which are relocated to semi-natural nests at Turtle Conservation and Education Center, Serangan-Bali. The data was collected from 2015 until 2019. In 5 years the number of nest rescued was 792 and the number of eggwas 87.303. The nest which relocated to semi-natural nest in TCEC came from 27 nesting habitats. Mostly the nest native to Klungkung beach, Serangan beach, and Lembeng beach with the number of turtle eggs on each beach were 211 nests, 179 nests, and 174 nests.
Co-Authors Amaral, Ni Putu Anglila Budi, Eka Saktiawan Ida Ayu Made Dwi Susanti Lestari, Ni Made Dwi Pertami, Nyoman Dati Sang Ayu Made Putri Suryani, Sang Ayu Made Putri Saputra, Dewa Gde Tribodhi Sathyananta, Kadek Prayuda Sukanta, I Made Surya Pramana, Made Arya Tampubolon, Prawira Atmaja Utami, Dhita Hardiyanti Wijayanti, Ni Putu Ayu