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All Journal UNEJ e-Proceeding Gema Agro AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) SEAS (Sustainable Environment Agricultural Science) East Asian Journal of Multidisciplinary Research (EAJMR) Jurnal Pengabdian Masyarakat Bestari (JPMB)
I Wayan Arya
Universitas Warmadewa
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Industrial & Manufacturing Engineering Social Sciences

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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 | 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 | 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 | 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.
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.
Morfometry Diversity of Uceng Fish (Nemacheilus fasciatus) With Truss Method In Downstream of Yeh Sungi River Gede Dabdab Suriadi; Sang Ayu Made Putri Suryani; I Wayan Arya
SEAS (Sustainable Environment Agricultural Science) Vol. 3 No. 2 (2019)
Publisher : Warmadewa University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/seas.3.2.1506.113-117

Abstract

This study aims to determine the morphometric diversity of uceng fish that live in the downstream of the yeh sungi river and the environmental influence on the morphometry of the uceng fish that lives in the lower reaches of the yeh sungi river. This research was carried out in the Lower Sections of the Yeh Sungi River, Kediri District, Tabanan Regency, Bali Province. This research began on January 3 to April 17, 2019. The research method used was descriptive observation method by holding a series of sampling objects under study or data objects directly at the research location, in this study the intended data objects were uceng fish and types other fish caught as well as water quality. Uceng fish was measured by the truss method and the characters observed were 13 characters, namely A1, A2, A3, B1, B2, B3, B4, B5, C1, C2, C3, C4, and C5. The results of the study showed that the morphometry characters of Uceng fish (Nemacheilus fasciatus) that live in the lower reaches of the Yeh Sungi river were 13 characters observed at the Stasion I, Station II, and Station III, from the characters observed 5 characters had similarities (38.46% ) that is on the characters A1, B1, B2, B4, and B5, while 8 characters have differences (61.54%), namely the characters A2, A3, B3, C1, C2, C3, C4, and C5. The high difference shows that uceng fish in the downstream of the Yeh Sungi river are resistant to environmental changes, other fish caught include broom fish, beboso fish, wader fish, catfish, gouramy fish, klepek batu, and cork fish and range water quality parameters during the study were temperature 25 0C, pH 5-7, DO 6 ppm, NO3 - 0.5 mg / l, and KH 6-10 dH.
Co-Authors Andriani, Anak Agung Sagung Putri Risa D.G.Semara Edi D.N. Sadguna Dewa Gede Dewa Gede Semara Edi, Dewa Gede Semara Dewa Nyoman Sadguna, Dewa Nyoman Faihana Ching Abdulah G.A Surya Pratama Gede Dabdab Suriadi I Gede Arya Sukman Jaya I Gede Arya Sukman Jaya I Gede Pransidi I Gede Sudiarta I Gusti Gurah Sugiana I Gusti Made Arya Sedana I Gusti Ngurah Alit Parka Yudha I Kadek Adi Wirawan I Made Kawan, I Made Komang Gustika Nirasari Laras Syahrani N. Pangki Pangemanan Ni Kadek Dwi Agustini Ni Made Darmadi Norfazreena Mohd Faudzi S.A.M. Suryani S.A.M.P. Suryani Sang Ayu Made Putri Suryani, Sang Ayu Made Putri Semara Adi Sharil Fadli Mohamad Zamri Yoga Parawangsa