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Diagnosa, Analisis dan Identifikasi Parasit yang Menyerang Ikan Nila (Oreochromis Niloticus) Pada Kawasan Budidaya Ikan Di Subak “Baru” Tabanan I Kadek Adi Wirawan; Sang Ayu Made Putri Suryani; I Wayan Arya
GEMA AGRO Vol 23 No 1 (2018)
Publisher : Fakultas Pertanian, Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1116.288 KB) | DOI: 10.22225/ga.23.1.661.63-78

Abstract

Fish cultivation business is one of the very promising business with the increasingly cheap demand of fishery products in the community. So is the case with the cultivation of Tilapia fish. Aquaculture is not spared from various obstacles and problems that often hamper fish farming is the occurrence of disease attacks. Tilapia fish Who was attacked The disease starts with by showing signs of behavioral changes. In addition to the behavior, tilapia also experience a change in color that looks very clear difference compared to fish that are still healthy. Calculation of condition factors, from the three sampling sites average fish is in poor condition indicating that most of fish in pond cultivation have decreased condition that reach 60-90%, caused by disease / phatogen factor or environmental factor not good.The results of the laboratory analysis found six (6) parasites that infect tilapia: Dactyloyrus sp, Gyrodactylus spp, Tricodina sp, Vortycella sp, Oodinium sp, and Saprolegnia sp. Water quality is less good in the cultivation are resulted in the decreased condition of fish and support well the development of various types of parasites.
Analisis Tingkat Pencemaran Air Sungai Yeh Sungi di Kabupaten Tabanan Dengan Menggunakan Indikator Biologis NVC Ikan dan Keragaman Jenis Makrozoobenthos I Gusti Made Arya Sedana; Ni Made Darmadi; I Wayan Arya
GEMA AGRO Vol 23 No 1 (2018)
Publisher : Fakultas Pertanian, Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (888.584 KB) | DOI: 10.22225/ga.23.1.662.79-91

Abstract

Water is a major component of life processes on earth, good quantity and quality of water is highly coveted by humans. River as one type of waters and become a living medium for aquatic organisms, to measure the level of water pollution one of them by using bioindicator method. Bioindicators are organisms that have biological responses that can indicate the entry of certain pollutants in the environment. The purpose of this research is to know river pollution based on Nutrition Value Coeficient (NVC) fish and Makrozoobenthos that live in it. The value of NVC (Nutrition Value Coefficient) of fish varies on each station in the downstream and upstream segments of the Yeh Sungi river, this illustrates that at each station and on different river segments shows different levels of pollution. Waters with clean categories up to the contaminated waters will be found larvae insect , insects and snails. So on headwaters with macrozoobenthos conditions like this describe the condition of clean waters up to be contaminated, so if associated with the value of NVC fish then the headwaters of Yeh Sungi including the contaminated waters category.
Studi Struktur Komunitas Fitoplankton Di Danau Batur, Kecamatan Kintamani, Kabupaten Bangli, Provinsi Bali Komang Gustika Nirasari; I Wayan Arya; Sang Ayu Made Putri Suryani
GEMA AGRO Vol 23 No 1 (2018)
Publisher : Fakultas Pertanian, Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (465.423 KB) | DOI: 10.22225/ga.23.1.664.104-107

Abstract

Lake Batur is the largest lake in Bali with many activities surrounding that will have great impact on fertility of the lake. One key factor in the fertility of the lake is phytoplankton. Abundance of phytoplankton in the waters affected by several environmental parameters. This research was conducted at Lake Batur, Kintamani district, Bangli Regency, in February 2014. Study is to measure the composition, abundance, diversity, uniformity and dominance of phytoplankton in the waters, measuring parameters and aquatic physical chemistry. The diversity of phytoplankton species found in Lake Batur are 5 class consists of 20 genera. Phytoplankton abundance ranged from 232370-336325 ind/l are eutrophic lake. Phytoplankton diversity index were included in diversity, uniformity index is included in the low uniformity, dominance index showed no dominance. Physical and chemical parameters of water still shows a good value so that the waters of Lake Batur contamination has not occurred.
Studi identifikasi keragaman jenis, feeding habit dan food habit ikan demersal pada bagian hilir sungai yeh sungi, Tabanan, Bali. I Gusti Ngurah Alit Parka Yudha; I Wayan Arya; Sang Ayu Made Putri Suryani
GEMA AGRO Vol 23 No 2 (2018)
Publisher : Fakultas Pertanian, Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (812.434 KB) | DOI: 10.22225/ga.23.2.883.114-123

Abstract

This study aims to determine the diversity of demersal fish and feeding habits and food habits of demersal fish found in the lower reaches of the Yeh Sungi River. This research was carried out in the lower reaches of the Yeh Sungi River, Tabanan, Bali. This research began on April 17, 2016 until May 1, 2016. The research method used is descriptive exploratory method, namely by conducting a series of sampling activities of demersal fish species to identify the diversity of species and behavior (feding habit) of each type of demersal fish, as well as the food habit of each type of demersal fish. The results of the research on the diversity of demersal fish that have been found in the lower reaches of the Yeh Sungi River are quite diverse, based on the results of the study which captured 14 types of demersal fish in the lower reaches of the Yeh Sungi River. Feeding habits of 14 species found in demersal fish have nocturnal properties, by identifying the physical characteristics of demersal fish, especially in the form of mouths and fins, knowing some types of demersal fish that have adhesive fins prove that the fish look for food by attaching (passively) to the substrate of river rocks and tend to eat moss and detritus and are omnivorous. Demersal fish that do not have adhesive fins tend to be carnivorous and omnivorous, often looking for food by grabbing their prey, especially on the sand substrate on the riverbed. According to the results of analysis of abdominal surgery from 14 types of demersal fish found, 10 body cut objects from macrozoobenthos animals or food habits both intact and destroyed which were then matched with macrozoobenthos data which had previously been found on the bottom substrate downstream of the River. Yeh Sungi, the body pieces are white worms, red worms, silk worms / Tubifek sp, subsequent snails, small shrimp, short snails, dragonfly larvae, insects, detritus and moss.
Analisis Status Trofik Dan Struktur Saprobik Fitoplankton Di Bendungan Telaga Tunjung, Kabupaten Tabanan, Bali I Gede Pransidi; Ni Made Darmadi; I Wayan Arya; Dewa Gede Semara Edi; I Made Kawan
GEMA AGRO Vol 25 No 1 (2020)
Publisher : Fakultas Pertanian, Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (258.752 KB) | DOI: 10.22225/ga.25.1.1721.64-70

Abstract

Plankton is instrumental in the aquatic ecosystem, plankton can be an indicator of fertility and pollution. The quality of a water especially the flooded waters can be determined based on the fluctuations of the plankton population that will affect the trophic levels of the waters. The quality of a water can be measured by knowing the value of the Saprobic Index (SI). The Saprobic index is an index that closely relates to the pollution level. This research aims to determine the level of fertility and pollution levels in the waters of Telaga Tunjung Dam, based on the status of Trophic and Saprobic's structure of Phytoplankton, knowing the relationship (linkage) of trophic status and structure Saprobic phytoplankton with variable water quality in Telaga Tunjung Dam. The methods of study used are descriptive methods of case study. The research was conducted on five stations with four repetitions. Plankton sampling performed actively using plankton net with mesh size 60 μm diameter 25 cm. Based on the results of the status of the trophic waters in Telaga Tunjung Dam is at the head of high Water Fertility (Eutrofik). The pollution level is mild to moderate water with a saprobic index from 0,739 to -0,583. The trophic level relationship and the saprobic structure with the water quality variable show that good water quality affects the abundance of high phytoplankton and mild to moderate pollution levels.
Analisis Kelimpahan Dan Indeks Saprobitas Fitoplankton Pada Ekosistem Padang Lamun Di Pantai Sindhu, Sanur, Bali Sang Ayu Made Putri Suryani; Laras Syahrani; I Wayan Arya
GEMA AGRO Vol 27 No 1 (2022)
Publisher : Fakultas Pertanian, Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (218.446 KB) | DOI: 10.22225/ga.27.1.4982.12-21

Abstract

Abstract Sindhu Beach is one of the beaches in the Sanur area that is used for various economic activities, such as recreational locations or marine tourism by involving many stakeholders that can affect the aquatic environment which is the habitat of marine biota, is phytoplankton. In addition, the presence of seagrass also affects the abundance and saprobity index of phytoplankton. The research was conducted in May 2021 at Sindhu Beach and the identification process was carried out in the laboratory of the Faculty of Agriculture, Warmadewa University. The method used is the descriptive method. There were 20 types of phytoplankton from five classes, namely Chlorophyceae, Diatomae, Bacillariophyceae, Cyanophyceae, and Dinophyceae classes. The highest abundance of phytoplankton in the third observation was 206.369 ind/l at Station 1 and the lowest at the third observation was 152.866 ind/l at Station 2. At Station 1, the lowest water saprobic index was 0.047 in the first observation, followed by the second observation at 0.130, and the highest at the observation third at 0.307. This value is included in the moderately polluted category. At Station 2, the lowest water saprobic index in the first observation was -0.538, followed by the second observation at 0.28 and the highest at the third observation at 0.523. This value is included in the category of lightly polluted. At Station 3, the lowest water saprobic index in the first observation was 0.307, followed by the second observation at 0.615 and the highest at 0.739. This value is included in the category of lightly polluted.
- 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
A Identifikasi Bakteri Patogen Pada Ikan Nyalian (Rasbora lateristriata) Yang Didomestikasi I Gede Arya Sukman Jaya; Sang Ayu Made Putri Suryani; Ni Made Darmadi; I Wayan Arya
GEMA AGRO Vol 28 No 1 (2023)
Publisher : Fakultas Pertanian, Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/ga.28.1.6849.66-76

Abstract

This study aims to identify pathogenic bacteria in domesticated Rasbora lateristriata fish. Sampling was carried out 1 time with the point of collection in the upstream, middle and downstream parts of the Medium river, District. Abiansemal, Badung Regency. Sampling was carried out in March 2022, using nets and nets. The data processing method is descriptive and data presentation is in the form of graphs. The domestication method aims to identify bacteria that attack Rasbora, Sp, and survive domestication. Sample examination was carried out at the Domestic Laboratory at the Denpasar Veterinary Center once. The results showed that the Nyalian Fish (Rasbora Lateristriata) which was domesticated from 5 samples found that Proteus sp. In addition, the water quality in the original habitat of Rasbora lateristriata fish with the water quality where it is adapted is different, especially the temperature, pH and DO values, but the water quality is still within the tolerance of Rasbora lateristriata fish to live.
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.