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All Journal Gema Agro KERTHA WICAKSANA AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Jurnal Pengabdian Masyarakat Bestari (JPMB) Asian Journal of Community Services (AJCS) Biodiversitas Journal of Biological Diversity
I Gede Sudiarta
Universitas Warmadewa
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Energy Environmental Science Industrial & Manufacturing Engineering Social Sciences

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- Domestication of Nyalian Fish (Rasbora Sp) as an Effort to Conserve Local Fish in Bali Province: - S.A.M. Putri Suryani; I Wayan Arya; Dewa Nyoman Sadguna; I. Gede Sudiarta; A.A.S. Putri Risa Andriani
AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Vol. 6 No. 3 (2022)
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy (SAFE-Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (231.677 KB) | DOI: 10.29165/ajarcde.v6i3.179

Abstract

ABSTRACT Biodiversitas ikan-ikan air tawar lokal asli Indonesia sangat berlimpah namun belum banyak dimanfaatkan dalam budidaya. Pemanfaatan secara langsung masih dalam taraf penangkapan di alam yang dikhawatirkan dapat membahayakan populasinya di alam. Salah satu alternative untuk pencegahannya adalah dengan upaya meningkatkan budidaya dan mengurangi penangkapa The biodiversity of local freshwater fish native to Indonesia is very abundant but has not been widely used in aquaculture. Direct use is still within the level of capture in nature which is feared to endanger its population in nature. One alternative to prevention is to increase cultivation and reduce overfishing. Before carrying out fish farming first in domestication so that the fish are accustomed to living in a controlled environment. Feeding habits and growth Nyalian fish eat feed that floats or does not immediately sink to the bottom of the waters. It also corresponds to the position of his mouth looking up obliquely and his habits of life on the surface of the waters. The sampling method is Nyalian fish samples collected at two locations and data analysis on this research using SPSS. The growth of Rasbora lateristriata fish during domestication showed significant results, namely the absolute growth of the calculated t-test value of 16.948 with a significance level of 0.000. The growth of the total length with a calculated t-test value of 14.091 with a significance level of 0.000. Weight growth with a calculated t-test value of 9.045 with a significance level of 0.000. The relationship between length and weight shows significant results where the increase in standard length will be followed by weight growth. Water quality during the study, namely pH, DO and temperature is still following the life of Italian fish. The results of the study show that Nyalian fish can adapt to the artificial environment n yang berlebihan. Sebelum melakukan budidaya ikan terlebih dahulu di domestikasi agar ikan terbiasa hidup dilingkungan terkontrol. Kebiasaan makan dan pertumbuhan Ikan Nyalian memakan pakan yang terapung atau tidak langsung tenggelam ke dasar perairan. Hal itu juga sesuai dengan kedudukan mulutnya yang menengadah miring ke atas dan kebiasaan hidupnya di bagian permukaan perairan. Metode pengambilan sampel adalah Sampel ikan Nyalian dikoleksi pada dua lokasi dan Analisis data pada menelitian ini menggunakan SPSS.Pertumbuhan ikan Rasbora lateristriata selama domestikasi menunjukkan hasil yang signifikan yaitu pertumbuhan mutlak nilai uji t hitung sebesar 16,948 dengan tingkat signifikansi sebesar 0,000. Pertumbuhan panjang total total dengan nilai uji t hitung sebesar 14,091 dengan tingkat signifikansi sebesar 0,000. Pertumbuhan berat dengan nilai uji t hitung sebesar 9,045 dengan tingkat signifikansi sebesar 0,000. Hubungan panjang dan berat menunjukkan hasil yang signifikan dimana pertambahan panjang baku akan diikuti oleh pertumbuhan berat. Kualitas air selama penelitian yaitu pH, DO dan suhu masih sesuai dengan kehidupan ikan Nyalian.Dari hasil penelitian menunjukkan bahwa ikan Nyalian mampu beradaptasi pada lingkungan buatan
Implementation of Tilapia Biofloc Technology in the Bulian Sari Group as an Effort to Reduce Lake Pollution in Pancasari Village, Buleleng, Bali Sang Ayu Made Putri Suryani; I Made Kawan; I Gede Sudiarta; Agus Surya Pratama; Ni Made Darmadi; Yoga Parawangsa; Mia Freshnido; Hanilyn Hidalgo; Amee Nicolas
Asian Journal of Community Services Vol. 2 No. 9 (2023): September 2023
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/ajcs.v2i9.6023

Abstract

Cultivating tilapia in round ponds with the biofloc system which has the advantage that tarpaulin ponds are easy to make, and the pond temperature is more stable than cement ponds. The methods that will be carried out in the implementation of this training are interviews, face-to-face, counseling and direct practice. The advantage of tarpaulin pools is that they are efficient in using water because we only need to fill in water at the beginning and the addition of water is also adjusted according to conditions.  The application of Biofloc technology in Pancasari Village can increase tilapia production. The biofloc system can also increase the Survival Rate (SR) of fish and reduce the Feed Conversion Ratio (FCR).
Empowering Fish Cultivator Groups in Water-Minimum Areas by Cultivating Ospronemous gouramy Fish in Probiotic Media Tarpaulin Ponds in Asahduren Village, Jembrana Regency, Bali Province I Wayan Arya; I Gusti Gurah Sugiana; I Dewa Nyoman Sadguna; I Gede Sudiarta; N. Pangki Pangemanan
Jurnal Pengabdian Masyarakat Bestari Vol. 2 No. 10 (2023): October 2023
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/jpmb.v2i10.6284

Abstract

This National Community Partnership Program (PKM) is a collaboration between Warmadewa University, Denpasar and Sam Ratulangi University, Manado with partner fish cultivator group (Pokdakan) "Mina Dewata" in Asahduren Village, Pekutatan District, Jembrana, Bali. This PKM aims to optimize the use of water and land resources while increasing Pokdakan productivity by cultivating gourami fish in tarpaulin ponds with probiotic media. The cultivation container is in the form of a tarpaulin pond with water media treated with probiotics, so that it saves water and the water quality remains healthy for the growth of gourami fish. The program is implemented using the applied study method, including: 1) Cultivating gourami fish in tarpaulin ponds with probiotic media; and 2) Increasing the capacity and competence of Pokdakan. In this initial stage, the group has succeeded in creating 4 cultivation ponds out of the 12 planned ponds.
Struktur Komunitas Dan Pola Sebaran Jenis Lamun Di Pantai Batu Jimbar Sanur Bali Constantein Petta; I Ketut Sudiarta; I Gede Sudiarta
GEMA AGRO Vol 26 No 2 (2021)
Publisher : Fakultas Pertanian, Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/ga.26.2.4077.144-157

Abstract

Spread over about 1 km of coastal line area, Batu Jimbar Beach displays stretch of seagrass beds along its coastline and for approximately 0,4 km towards the sea. This beach is a well-known site for both tourism and fishery activities, including fishing and boat landing. Those both activities are certainly bring out impacts on the stability of the seagrass ecosystem. In connection with that matter, this study aims to determine the community structure and distribution pattern of seagrass species at Batu Jimbar Beach. The research was taken place in February - June 2021, and was carried out by using descriptive methodology. Observation for research was conducted at three research stations which were divided into three sub-stations. It resulted that the seagrass community consisted of 9 species, including: Enhalus acroides, Halophila ovalis, Thalassia hemprichii, Cymodocea rotundata, Cymodocea serrulata, Halodule pinifolia, Halodule uninervis, Syringodium isoetifolium and Thalassodendron ciliatum. The most coverage found was Thalassia hemprichii (60.19%) and the least coverage in species composition was Cymodocea cerulata and Thalassodendron ciliatum (0.31%). According to the research stations’ data, the density of the observed seagreass ranged from 284 – 327 ind/m2 with a cover percentage between 51.1 – 55.2%. The diversity index according to research stations was also ranged from 1.06 to 1.16, while the uniformity index ranged from 0.59 to 0.66, and the dominance index ranged from 0.43 to 0.49. Also, the species similarity index between research stations was 100%. The research was also discoverd that the distribution pattern of seagrass species is clustered.
Perlindungan Hukum Bagi Pelaku Usaha Taksi Daring dalam Perspektif Praktek Monopoli dan Persaingan Usaha Tidak Sehat I Gede Putu Sudiarta; I Nyoman Putu Budiartha; Ni Made Puspasutari Ujianti
Kertha Wicaksana Vol 13 No 2 (2019)
Publisher : Fakultas Hukum, Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/kw.13.2.2019.85-89

Abstract

Abstrak Salah satu hal yang terjadi mengenai timbulnya persaingan tidak sehat, yaitu adanya kedekatan para pelaku usaha dengan orang yang memiliki kekuasaan tinggi yang dapat memberikan kemudahan untuk melakukan sesuatu. Sekelompok pelaku usaha yang melakukan kerjasama dengan pelaku usaha lainnya dapat dikatakan telah melakukan praktek monopoli seperti yang terjadi di bandara dimana taksi daring tidak dapat menjemput maupun mengantar penumpang masuk ke bandara. Dasar hukum dalam perjanjian kerjasama yaitu diatur dalam pasal 1320 KUHperdata, pasal tersebut memberikan siapa saja dapat melakuka perjanjian asalkan tidak melanggar ketentuan pasal tersebut. Dalam usaha taksi daring pasal tersebut bertentangan dengan UU no 5 tahun 1999 tentang Persaingan Usaha Tidak Sehat.Perlindungan hukum preventif terhadap pelaku usaha taksi daring dimana dengan diterbitkannya UU Nomor 5 Tahun 1999 tentang Larangan Praktek Monopoli dan Persaingan Usaha Tidak Sehat. Perlindungan hukum represif bagi pelaku usaha taksi daring yang melakukan tindakan persaingan usaha tidak sehat diberi sanksi administrasi. Abstract One of the things that happens on the incidence of unhealthy business competition,the is the closeness of the business with people who have a higher level of power that can provide convenience to do something. A Group of businesses which cooperation with the business may be said to have been of a monopoly as happened at the airport where a taxi online can’t pick up and take passenger’s into the airport. The legality in the cooperation agreement which is set in article to 1320 KUHperdata, article is giving anyone can make the deal as long as it does not violate the provisions of article. Chasing a taxi online article is contrary to the law number 5 of 1999 on an unhealthy business competition. Protection of the law preventive against businesses for a taxi online in which the issuance of the law no 5 of 1999 on the restriction on the practice of monopolies and an unhealthy business competition. Protection of the repressive for the business for taxi online who commit acts of an unhealthy business competition were given administrative sanctions.
Ecological diagnosis of Lake Batur (Bali, Indonesia) post-disturbance using multimetric phytoplankton indices SANG AYU MADE PUTRI SURYANI; I GEDE SUDIARTA; NI MADE DARMADI; DEWA GEDE SEMARA EDI; I KETUT SUDIARTA; GEDE AGUS SURYA PRATAMA; I MADE ABDI JANAGUNA; I PUTU SUGIANA
Biodiversitas Journal of Biological Diversity Vol. 26 No. 10 (2025)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d261014

Abstract

Abstract. Suryani SAMP, Sudiarta IG, Darmadi NM, Edi DGS, Sudiarta IK, Pratama GAS, Janaguna IMA, Sugiana IP. 2025. Ecological diagnosis of Lake Batur (Bali, Indonesia) post-disturbance using multimetric phytoplankton indices. Biodiversitas 26: 4982-4990. Plankton communities are rapid responders to environmental change and serve as sensitive indicators of ecological stress in tropical volcanic lakes. In July 2025, Lake Batur (Bali, Indonesia) experienced a major fish mortality linked to hypolimnetic upwelling and nutrient enrichment from aquaculture. To assess post-disturbance conditions, we sampled three sites with varying aquaculture intensity—Seked (low), Buahan (moderate), and Trunyan (high, mortality epicenter)—one week after the event. Field measurements included temperature, pH, dissolved oxygen, conductivity, redox potential, nutrients, and sulfide, while phytoplankton analysis covered diversity (Shannon–Wiener), evenness (Pielou), dominance (Simpson), and saprobity (Dahuri). Results revealed clear spatial contrasts. Trunyan showed the strongest stress signals, with oxygen depletion, negative redox potential, and elevated ammonia, while Seked and Buahan displayed milder alterations. In total, 23 phytoplankton genera were identified, dominated by diatoms such as Ulnaria and Actinotaenium. Trunyan exhibited reduced richness, lower diversity (H’ = 1.84), and higher dominance (D = 0.27), indicating a shift toward opportunistic taxa. Saprobity values showed a gradient of organic pollution, increasing from Seked (1.5) to Trunyan (2.0), consistent with aquaculture intensity. These findings highlight the value of integrating multimetric plankton indices with physicochemical data to distinguish natural upwelling effects from anthropogenic nutrient loading. While diatom persistence suggests some resilience, recovery of sensitive taxa depends on reducing nutrient inputs and regulating aquaculture. This integrative framework offers a practical diagnostic tool for adaptive lake management and contributes to achieving clean water, climate action, and aquatic biodiversity goals.
Co-Authors Amee Nicolas Andriani, Anak Agung Sagung Putri Risa Constantein Petta Dewa Gede Semara Edi, Dewa Gede Semara Dewa Nyoman Sadguna, Dewa Nyoman Gede Agus Surya Pratama Hanilyn Hidalgo I Gusti Gurah Sugiana I Ketut Sudiarta I Made Abdi Janaguna I Made Kawan, I Made I Nyoman Putu Budiartha I Wayan Arya Mia Freshnido N. Pangki Pangemanan Ni Made Darmadi Ni Made Puspasutari Ujianti Sang Ayu Made Putri Suryani, Sang Ayu Made Putri Sugiana, I Putu Yoga Parawangsa