Article Per Year (5 Year)
p-Index From 2021 - 2026
2.48
P-Index
This Author published in this journals
All Journal Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Jurnal Pendidikan dan Pengajaran Jurnal Pendidikan Biologi Undiksha Jurnal IKA Prosiding Seminar Nasional MIPA Wahana Matematika dan Sains Jurnal Perikanan dan Kelautan Jurnal Sains dan Teknologi Aquasains : Jurnal Ilmu Perikanan dan Sumberdaya Perairan Jurnal Segara Advances in Tropical Biodiversity and Environmental Sciences PENA AKUATIKA : JURNAL ILMIAH PERIKANAN DAN KELAUTAN Juvenil: Jurnal Ilmiah Kelautan dan Perikanan ACROPORA: Jurnal Ilmu Kelautan dan Perikanan Papua Jurnal Manusia dan Lingkungan Jurnal Perikanan dan Kelautan Jurnal Perikanan
Gede Ari Yudasmara
Universitas Pendidikan Ganesha
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Earth & Planetary Sciences Education Energy Environmental Science Immunology & microbiology Materials Science & Nanotechnology Physics Public Health Social Sciences Veterinary Other

Published : 60 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 60 Documents
Search

 2   3   4   5   6 
Development of Artificial Live Rock in Supporting Ornamental Coral Cultivation Activities Safi’i, Imam; Prasetia, I Nyoman Dodik; Yudasmara, Gede Ari
Jurnal Perikanan dan Kelautan Vol. 27 No. 3 (2022): October
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

Artificial live rock is an artificial live rock that is shaped like living rock in nature. Artificial live rock is designed to mimic natural living rock which is capable of being a substrate for corals, a habitat for epibenthic and the biological filter of a saltwater aquarium. The purpose of this research is to know the technique of making artificial live rock and the development of artificial live rock that are suitable for export on an export scale. The method used in this research is an experimental method with quantitative descriptive analysis. The level of suitability and product standards uses a simultaneous regression coefficient test analysis or the F test. The manufacture of artificial live rock does not have a special pattern, but artificial live rock is made as attractive as possible and resembles the shape in nature. Product standardization is carried out by using artificial live rock materials consisting of: 1 kg of pumice stone, ½ kg of cement, ½ kg of sand, 500 g of calcium and 1.5 L of water. The type of substrate that is good and ideal for algae on the surface of artificial live rock is an area with a bottom of coral sand mixed with coral rubble. Artificial live rock can be harvested for 3 months in water, with the characteristics of the surface of the artificial live rock covered algae which is then cleaned and placed in a treatment pond before being exported
Development of Artificial Live Rock in Supporting Ornamental Coral Cultivation Activities Safi’i, Imam; prasetia , I nyoman dodik; yudasmara, gede ari
Jurnal Perikanan dan Kelautan Vol. 27 No. 3 (2022): October
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

Artificial live rock is an artificial live rock that is shaped like living rock in nature. Artificial live rock is designed to mimic natural living rock which is capable of being a substrate for corals, a habitat for epibenthic and the biological filter of a saltwater aquarium. The purpose of this research is to know the technique of making artificial live rock and the development of artificial live rock that are suitable for export on an export scale. The method used in this research is an experimental method with quantitative descriptive analysis. The level of suitability and product standards uses a simultaneous regression coefficient test analysis or the F test. The manufacture of artificial live rock does not have a special pattern, but artificial live rock is made as attractive as possible and resembles the shape in nature. Product standardization is carried out by using artificial live rock materials consisting of: 1 kg of pumice stone, ½ kg of cement, ½ kg of sand, 500 g of calcium and 1.5 L of water. The type of substrate that is good and ideal for algae on the surface of artificial live rock is an area with a bottom of coral sand mixed with coral rubble. Artificial live rock can be harvested for 3 months in water, with the characteristics of the surface of the artificial live rock covered algae which is then cleaned and placed in a treatment pond before being exported
COMPARATIVE STUDY OF THE EFFECTS OF PROBIOTIC FEED IN CONVENTIONAL AND BIOFLOC CULTURE SYSTEMS ON THE GROWTH OF CATFISH (Clarias sp.) Syaifullah, Mohammad Mimbri; Martini, Ni Nyoman Dian; Yudasmara, Gede Ari
AQUASAINS Vol 13, No 2 (2025): March 2025
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aqs.v13i2.p1676-1689

Abstract

This research was carried out to determine the effect of probiotic feed on the growth of catfish (Clarias sp.) in two different culture systems. This research was carried out for 30 days using a randomized block design method, namely K (conventional group) and B (biofloc group), each with 3 replications. The data studied were catfish growth, survival, feed conver-sion and feed efficiency. Data collection was carried out 3 times, namely at the beginning, middle and end of the research. Growth and survival data were tested using the non-parametric Mann-Whitney U-test. The results showed that there were differences in catfish growth (P<0.05) in conventional and biofloc culture systems. The con-ventional group produced an average absolute weight of 5.9 grams and the biofloc group produced 6.3 grams. The absolute length of catfish in the conventional group averaged 10.1 cm and in the biofloc group it was 11.1 cm. Catfish survival data showed there was a significant difference (P<0.05). The survival value in the conventional group was 83%, while in the biofloc group it was 93.3%. The FCR value in the conventional group was 1.4 and in the biofloc group was 1.3. Catfish in the conventional group got a feed efficiency of 49% and in the biofloc group it was 51%.Keywords: Biofloc, Catfish, Conven-tional.
Development of Artificial Live Rock in Supporting Ornamental Coral Cultivation Activities Safi’i, Imam; prasetia , I nyoman dodik; yudasmara, gede ari
Jurnal Perikanan dan Kelautan Vol. 27 No. 3 (2022): October
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

Artificial live rock is an artificial live rock that is shaped like living rock in nature. Artificial live rock is designed to mimic natural living rock which is capable of being a substrate for corals, a habitat for epibenthic and the biological filter of a saltwater aquarium. The purpose of this research is to know the technique of making artificial live rock and the development of artificial live rock that are suitable for export on an export scale. The method used in this research is an experimental method with quantitative descriptive analysis. The level of suitability and product standards uses a simultaneous regression coefficient test analysis or the F test. The manufacture of artificial live rock does not have a special pattern, but artificial live rock is made as attractive as possible and resembles the shape in nature. Product standardization is carried out by using artificial live rock materials consisting of: 1 kg of pumice stone, ½ kg of cement, ½ kg of sand, 500 g of calcium and 1.5 L of water. The type of substrate that is good and ideal for algae on the surface of artificial live rock is an area with a bottom of coral sand mixed with coral rubble. Artificial live rock can be harvested for 3 months in water, with the characteristics of the surface of the artificial live rock covered algae which is then cleaned and placed in a treatment pond before being exported
COMPARATIVE STUDY OF THE EFFECTS OF PROBIOTIC FEED IN CONVENTIONAL AND BIOFLOC CULTURE SYSTEMS ON THE GROWTH OF CATFISH (Clarias sp.) Syaifullah, Mohammad Mimbri; Martini, Ni Nyoman Dian; Yudasmara, Gede Ari
AQUASAINS Vol. 13 No. 2 (2025): March 2025
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aqs.v13i2.p1676-1689

Abstract

This research was carried out to determine the effect of probiotic feed on the growth of catfish (Clarias sp.) in two different culture systems. This research was carried out for 30 days using a randomized block design method, namely K (conventional group) and B (biofloc group), each with 3 replications. The data studied were catfish growth, survival, feed conver-sion and feed efficiency. Data collection was carried out 3 times, namely at the beginning, middle and end of the research. Growth and survival data were tested using the non-parametric Mann-Whitney U-test. The results showed that there were differences in catfish growth (P<0.05) in conventional and biofloc culture systems. The con-ventional group produced an average absolute weight of 5.9 grams and the biofloc group produced 6.3 grams. The absolute length of catfish in the conventional group averaged 10.1 cm and in the biofloc group it was 11.1 cm. Catfish survival data showed there was a significant difference (P<0.05). The survival value in the conventional group was 83%, while in the biofloc group it was 93.3%. The FCR value in the conventional group was 1.4 and in the biofloc group was 1.3. Catfish in the conventional group got a feed efficiency of 49% and in the biofloc group it was 51%.Keywords: Biofloc, Catfish, Conven-tional.
Pengaruh Suplementasi Sinbiotik (EM4 X Ipomoea Batatas L) Dalam Pakan Terhadap Sintasan Dan Laju Pertumbuhan Benih Ikan nila (Oreochromis Niloticus) Margaretha, Elisabet; Yudasmara, Gede Ari; Fain, Hamdanul
Wahana Matematika dan Sains: Jurnal Matematika, Sains, dan Pembelajarannya Vol. 19 No. 2 (2025): Agustus 2025
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/wms.v19i2.99652

Abstract

Ikan nila (Oreochromis niloticus) merupakan komoditas akuakultur air tawar penting di Indonesia, namun produktivitasnya sering terkendala kualitas air dan efisiensi pakan yang rendah. Penelitian ini bertujuan untuk mengevaluasi pengaruh suplementasi sinbiotik dalam pakan terhadap sintasan dan laju pertumbuhan benih ikan nila, serta menentukan dosis optimalnya. Metode penelitian menggunakan Rancangan Acak Kelompok (RAK) dengan empat perlakuan dan tiga ulangan: Perlakuan A (Probiotik 0,02 ml + Prebiotik 0,04 gr ), Perlakuan B (Probiotik 0,04 ml + Prebiotik 0,02 gr), Perlakuan C (Probiotik 0,04 ml + Prebiotik 0,03 gr), dan Perlakuan D (kontrol, 100% pakan komersial). Sebanyak 180 ekor benih ikan nila (berat 4,9-5,1 gram/ekor) dipelihara selama 30 hari, dengan pakan diberikan 2-3 kali sehari sebesar 5% biomassa. Parameter yang diamati meliputi laju pertumbuhan spesifik (SGR) dan sintasan (SR), serta kualitas air (suhu, pH, DO). Data dianalisis menggunakan ANOVA dan uji lanjut BNT pada taraf signifikansi 5%. Hasil penelitian menunjukkan bahwa suplementasi sinbiotik memberikan pengaruh yang signifikan terhadap SGR dan SR benih ikan nila (P < 0,05). Perlakuan C ( Probiotik 0,04 ml + Prebiotik 0,03 gr ) menghasilkan kinerja terbaik, dengan rata-rata SGR sebesar 1,02% per hari dan sintasan mencapai 93,33%. Perlakuan ini secara signifikan lebih unggul dibandingkan perlakuan lainnya dan kontrol. Peningkatan ini diduga karena sinbiotik mengoptimalkan efisiensi pencernaan pakan, meningkatkan penyerapan nutrisi melalui perbaikan morfologi usus, serta memperkuat respons imun non-spesifik ikan. Kualitas air selama penelitian terjaga dalam kisaran optimal untuk budidaya ikan nila. Penelitian ini menyimpulkan bahwa suplementasi sinbiotik tepung ubi jalar dan EM4 efektif dalam meningkatkan performa budidaya benih ikan nila, dengan dosis optimal pada kombinasi probiotik EM4 0,04 ml dan prebiotik tepung ubi jalar 0,03 gr. Kata kunci: Ikan nila, sinbiotik, ubi jalar, laju pertumbuhan, sintasan.
KEANEKARAGAMAN DAN DOMINANSI KOMUNITAS BULU BABI (ECHINOIDEA) DI PERAIRAN PULAU MENJANGAN KAWASAN TAMAN NASIONAL BALI BARAT Ari Yudasmara, Gede
JST (Jurnal Sains dan Teknologi) Vol. 2 No. 2 (2013)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (261.878 KB) | DOI: 10.23887/jstundiksha.v2i2.2897

Abstract

Penelitian tentang keanekaragaman dan dominansi komunitas Bulu babi di perairan pulau Menjangan kawasan Taman Nasional Bali Barat telah dilakukan dari bulan Maret sampai Oktober 2012. Metode yang digunakan adalah metode transek kuadrat pada 3 lokasi pengamatan. Hasilnya menunjukkan bahwa jumlah jenis Bulu babi yang ditemukan di perairan sebelah selatan pulau Menjangan sebanyak 7 jenis yang terdiri dari Diadema setosum, Toxopneustes pileolus, Tripneutes gratilla, Echinometra mathaei, Salmacis belli, Pseudobolatia maculata dan Mespilia globulus dengan kategori keanekaragaman Bulu babi tergolong sedang yaitu H’ = 1,9260 dan dengan indeks dominansi jenis Bulu babi tertinggi adalah C = 0,6052 yang terkategori sedang.
Budidaya Anggur Laut (Caulerpa Racemosa) melalui Media Tanam Rigid Quadrant Nets Berbahan Bambu Yudasmara, Gede Ari
JST (Jurnal Sains dan Teknologi) Vol. 3 No. 2 (2014)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (583.188 KB) | DOI: 10.23887/jstundiksha.v3i2.4481

Abstract

Anggur laut (Caulerpa racemosa) merupakan makro alga hijau yang sering dimanfaatkan sebagai makanan bagi masyarakat sekitar pantai. Akan tetapi ketersediaannya masih dalam jumlah yang sangat terbatas dan musiman, karena masih tergantung dari alam dan belum dibudidayakan secara baik dan benar. Untuk itu diperlukan usaha budidaya untuk menunjang kontinuitas produksinya. Penelitian ini bertujuan untuk mengkaji dan menganalisis efektifitas dan efisiensi rigid quadrant nets berbahan bambu dalam budidaya Caulerpa racemosa dan mengkaji kualitas dan kuantitas yang diperoleh dari penerapan rigid quadrant nets berbahan bambu dalam budidaya Caulerpa racemosa. Untuk mencapai tujuan tersebut dilakukan melalui penelitian eksperimen dengan rancangan pre test post test control group design. Hasil penelitian menunjukkan bahwa rigid quadrant nets berbahan bambu cukup efektif dan efisien dalam budidaya Caulerpa racemosa, begitupula dari segi kualitas dan kuantitas substrat rigid quadrant nets berbahan bambu cukup baik kualitasnya serta hasil panen sebanyak Bak I sebesar 2340,46 gram, Bak II sebesar 2003,60 gram dan Bak ke III sebesar 2135,5 gram dengan masa penanaman selama 42 hari.
ANALISIS KEANEKARAGAMAN DAN KEMELIMPAHAN RELATIF ALGAE MIKROSKOPIS DI BERBAGAI EKOSISTEM PADA KAWASAN INTERTIDAL PULAU MENJANGAN BALI BARAT Yudasmara, Gede Ari
JST (Jurnal Sains dan Teknologi) Vol. 4 No. 1 (2015)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (557.094 KB) | DOI: 10.23887/jstundiksha.v4i1.4929

Abstract

Algae mikroskopis memiliki peranan yang penting karena merupakan organisme autotrof yaitu organisme yang mampu menghasilkan makanan sendiri, sehingga berperan sebagai produsen bagi konsumen yang hidup di lautan dan sangat erat kaitannya dengan rantai makanan. Tujuan dari penelitian ini adalah mengetahui keanekaragaman dan kemelimpahan relatif algae mikroskopis serta tingkat perbedaannya pada ekosistem Padang Lamun, Terumbu Karang dan Mangrove di kawasan intertidal Pulau Menjangan Bali Barat. Penelitian ini termasuk penelitian deskriptif eksploratif dengan metode observasi lapangan. Populasi dari penelitian ini adalah seluruh algae mikroskopis pada ekosistem Mangrove, Padang Lamun dan Terumbu Karang, sedangkan Sampel dalam penelitian ini adalah algae mikroskopis yang berhasil ditangkap pada sejumlah titik pengambilan sampel. Analisis data menggunakan statistik ekologi. Hasil penelitian menunjukkan (1) algae mikroskopis yang teridentifikasi pada ekosistem Mangrove sebanyak 20 jenis, ekosistem Padang Lamun 24 jenis, dan ekosistem Terumbu Karang 32 jenis; (2) Indeks keanekaragaman pada ekosistem Mangrove dan Padang Lamun tergolong sedang sedangkan ekosistem Terumbu Karang tergolong tinggi; (3) Kemelimpahan relatif tertinggi pada Lamun adalah spesies Guinardia blavyana, ekosistem Mangrove adalah Triceratium alternans dan ekosistem Terumbu karang adalah Cocconeis scutelum; (4) terdapat perbedaan keanekaragaman dan kemelimpahan relatif algae mikroskopis antara ketiga ekosistem di kawasan intertidal Pulau Menjangan.
Kualitas Air Media Budidaya Nila (Oreochromis niloticus): Efek Pakan Bersinbiotik EM4 dan Tepung Ubi Jalar (Ipomoea batatas L.) Wildanti Arifaddini; Gede Ari Yudasmara; Made Dwipa Kusuma Maharani
ACROPORA: Jurnal Ilmu Kelautan dan Perikanan Papua Vol 8 No 2 (2025): ACROPORA: Jurnal Ilmu Kelautan dan Perikanan Papua Edisi November 2025
Publisher : Cenderawasih University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31957/acr.v8i2.5079

Abstract

Peningkatan produksi Oreochromis niloticus dalam sistem budidaya intensif sering terhambat oleh penurunan kualitas air akibat akumulasi limbah organik. Penelitian ini bertujuan mengevaluasi efektivitas pakan bersinbiotik, kombinasi Probiotik EM4 dan Prebiotik tepung ubi jalar (Ipomoea batatas L.), dalam memitigasi senyawa nitrogen toksik dan memperbaiki ekosistem perairan. Penelitian eksperimental dengan pendekatan deskriptif selama 30 hari, ini membandingkan tiga perlakuan: Kontrol (tanpa sinbiotik), Dosis A (Probiotik 1% + Prebiotik 2%), dan Dosis B (Probiotik 2% + Prebiotik 1,5%). Parameter yang diukur meliputi amonia, nitrit, nitrat, dan komposisi plankton. Hasil menunjukkan perlakuan sinbiotik secara signifikan menjaga kualitas air. Perlakuan Kontrol mengalami akumulasi nitrit sangat tinggi, mencapai 35,67 mg/L, yang berakibat pada mortalitas. Sebaliknya, Dosis A dan B berhasil mengendalikan kadar amonia dan nitrit, menunjukkan peningkatan efisiensi siklus nitrifikasi. Dosis A (1% Probiotik, 2% Prebiotik) terbukti paling optimal, memicu pertumbuhan masif plankton (biofilter alami) dengan kelimpahan tertinggi (4,97 x 106 ind/mL) di akhir penelitian. Simpulan, pemberian pakan bersinbiotik, khususnya Dosis A, merupakan strategi manajemen kualitas air yang efektif dalam menciptakan lingkungan budidaya yang seimbang.
Co-Authors ., Km Satriaperbawa Irawan ., Komang Dewi Lyastiti ., Ni Wayan Surya Ningsih ., Serlis Nofiana Sari Alexander Kornius Marantika Dara, Rima Desi Purnami Desi Purnami, Desi Drs.I Ketut Artawan,M.Si . Fain, Hamdanul I GUSTI LANANG AGUNG ADI PRANA . I Gusti Lanang Agung Adi Prana ., I Gusti Lanang Agung Adi Prana I Nyoman Dodik Prasetia I Nyoman Wijana I Wayan Angga Bradnyana . I Wayan Jaya Antara . Ida Bagus Jelantik Swasta Imam Safii Imam Safi’i Kadek Lila Antara Km Satriaperbawa Irawan . Komang Dewi Lyastiti . Luh Mayda Ruspita Sari Made Dwipa Kusuma Maharani Made Dwipa Kusuma Maharani Margaretha, Elisabet Ni Nyoman Dian Martini Ni Wayan Surya Ningsih . prasetia , I nyoman dodik Putu Ayu Wulandari . Putu Ayu Wulandari ., Putu Ayu Wulandari Putu Bintang Orissa . Putu Budi Adnyana Putu Dicky Wahyudi Putu Justika Nirmala Ardhiana Puspanjali Putu Yogi Saputra Rima Dara Safi’i, Imam Serlis Nofiana Sari . Sg. Ayu Wulan Pradnyamita . Syaifullah, Mohammad Mimbri Wildanti Arifaddini