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All Journal METAMORFOSA Journal of Biological Sciences Journal of Marine and Aquatic Sciences Bumi Lestari Ecotrophic, Journal of Environmental Science BIOTROPIA - The Southeast Asian Journal of Tropical Biology Jurnal Arsitektur Lansekap DiH : Jurnal Ilmu Hukum Tadulako Law Review Acta Aquatica: Aquatic Sciences Journal Journal of Economic, Bussines and Accounting (COSTING) Jurnal Pengelolaan Perikanan Tropis (Journal Of Tropical Fisheries Management) BAWAL Widya Riset Perikanan Tangkap Current Trends in Aquatic Science Journal of Marine Research and Technology Jurnal Perikanan Advances in Tropical Biodiversity and Environmental Sciences Management Studies and Entrepreneurship Journal (MSEJ) INTERNATIONAL JOURNAL OF ENVIRONMENT AND GEOSCIENCES Ekobis: Jurnal Ilmu Manajemen dan Akuntansi Jurnal Ekonomi Jurnal Media Akuakultur Indonesia Journal Equity of Law and Governance Jurnal Konstruksi Hukum Jurnal Interpretasi Hukum Jurnal Preferensi Hukum (JPH) Proceeding of The International Conference on Economics and Business

I Wayan Arthana

Program Studi Manajemen Sumberdaya Perairan (Department Of Aquatic Resources Management) Universitas Udayana

Author-ID : 1556795

Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Energy Environmental Science Immunology & microbiology Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Social Sciences Veterinary Other

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Analisis Vegetasi Mangrove dan Kelimpahan Biota (Crustacea) yang Berasosiasi di Pantai Selatan Kabupaten Manggarai Timur Rifaldus Dani; I Wayan Arthana; Ni Made Ernawati
Journal of Marine and Aquatic Sciences Vol 7 No 1 (2021)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/jmas.2021.v07.i01.p09

Mangrove is a typical forest and grows along the coast or river estuaries that are affected by tidal of sea water. The aims are to determine the mangrove vegetation and abundance of associated (Crustacea) in the South Coast of East Manggarai Regency. Important value, density relative, frequency relative, index uniformity and diversity obtained from vegetation analysis used as indicators to describe vegetation structure and mangrove forest diversity as well as the abundance of associated Crustaceans. This research was conducted in mangrove forest in South Beach of East Manggarai Regency in February until March 2017. To support the research, water quality measurement on mangrove forest was conducted. Measurement of water quality is done in situ (temperature, pH and salinity). Methods used in this study the quantitative descriptive. Determination of the sampling done by means of purposive sampling. A kind of the mangrove found to consist of 7 species that Avicennia lanata, Rhizophora mucronata, Ceriops decandra, Bruguiera gymnorrhiza, Sonneratia alba, Sonneratia casiolaris, And Xylocarpus granatum. The diversity category in a low and index mangrove uniformity category in a high. While the Important Value Analysis shows that Avicenia Lanata species have the highest importance compared to other species. The water quality in the South Coast of East Manggarai Regency are still worth to support life and development mangrove. Abundance Crustacea higher at the station I by abundance of 7,6 ind / m2.

Distribusi Teripang (Holothuroidea) Pada Perairan Pesisir Nusa Lembongan, Kecamatan Nusa Penida, Kabupaten Klungkung, Bali Deptson Baringin Silaen; I Wayan Arthana; Suprabadevi Ayumayasari Saraswati
Journal of Marine and Aquatic Sciences Vol 4 No 2 (2018)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Sea cucumbers have a high economic potential and widely used by the community as food with nutrient content and high enough protein. The occurrence of an organism, including sea cucumbers in a waters is determined by the environmental factors of the waters, one of which is habitat. This study aims to determine the distribution of sea cucumbers (Holoturoidea) in the Coastal Waters of Nusa Lembongan, District Nusa Penida, Klungkung regency, Bali. This research was conducted in April-May 2017 in the Coastal Waters of Nusa Lembongan. This study looked at the distribution of sea cucumbers (Holoturoidea), substrate composition, physics-chemical parameters of waters (temperature, depth, salinity, pH, dissolved oxygen) and their relation to habitat conditions spread over Nusa Lembongan Coastal Waters. Data analysis in this study include the composition of sea cucumber, density of sea cucumber, the diversity of sea cucumber, and distribution of sea cucumbers. The results of the research conducted found 4 species of sea cucumber namely the type of Holothuria atra, Bohadchia vitiensis, Holothuria fuscocinerea and Holothuria sp. Physical-chemical parameters of the waters obtained in the research results are still categorized normal for the survival of sea cucumbers. Distribution of sea cucumbers during the study obtained by the results pattern of dispersal is clumped in all station with the index distribution value from 1.72 to 6.60.

Komposisi Jenis dan Struktur Komunitas Ikan di Ekosistem Lamun Pantai Sindhu, Sanur, Bali Kolis Pratama; I Wayan Arthana; Dewa Ayu Angga Pebriani
Journal of Marine and Aquatic Sciences Vol 6 No 1 (2020)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/jmas.2020.v06.i01.p13

Sindhu Beach is one of the beaches which located in Sanur. The coastal areas of Sindhu Beach has long been used for various economic activities, such as recreation areas or marine tourism. So that these activities can adversely affect the sustainability of the seagrass ecosystem as a habitat for various types of aquatic biota, especially fish. This study aims to determine the composition of fish community species and structures, to know the types of seagrass, and also to know the condition of water quality in the seagrass ecosystem of Sindhu Beach, Sanur, Bali. This study has been conducted from January to February 2018 by direct observation method. The results of the composition of fish species as a whole found 537 of fish that consisting of 22 species and it came from 11 families. The overall value of community structure is obtain by the value of the diversity index (H') of 2.68, uniformity index (E) 0.87, and the dominance index (C) 0.09. The types of seagrasses which found in the study location was consist of 8 species of seagrass covering Enhalus acoroides, Syringodium isoetifolium, Halodule pinifolia, Halodule uninervis, Thalassia hemprichii, Cymodocea rotundata, Halophila ovalis, and Halophila spinulosa. The result of measurement of water quality parameters from all stations were obtain the average measurement of dissolved oxygen 7,1 mg / l, salinity 30o/oo, pH 8,24, and temperature 29,80C. The result of measurement of water quality parameter shows that the condition of seagrass ecosystem of Sindhu Beach was still considered optimal for marine life.

Kandungan Nitrat, Fosfat Dan Pertumbuhan Biomassa Basah Kiambang (Salvinia molesta) Di Perairan Danau Buyan, Buleleng, Bali Ni Wayan Indah Purnamawati; I Wayan Arthana; Suprabadevi Ayumayasari Saraswati
Journal of Marine and Aquatic Sciences Vol 5 No 1 (2019)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

The objective of this research was to determined the relationship between nitrate and phosphate content on the growth of wet biomass Salvinia molesta in Buyan Lake, and also to know the difference of growth of Salvinia molesta in each station with different treatment. The research was conducted from February to March 2017 at Buyan Lake. Biomass measurements and water sampling were carried out at 4 stations with a plot of each treatment. The measurement of wet-biomass were carried out in situ by measuring at each treatment and for measuring the nitrate and phosphate content performed in the laboratory. The result showed that nitrate correlated with biomass growth of Salvinia molesta at the lowest treatment with R2 value of 0,105 and the highest at quarter treatment with value R2 of 0,889. The phosphate relationship with the lowest wet biomass growth was at full treatment with the R2 value of 0.042 and the highest in the quarter treatment with the R2 value of 0.936. The highest growth was found in station 1 and the lowest growth at station 4. For each treatment, the highest growth treatment was in a quarter treatment.

Struktur Komunitas Zooplankton di Bendungan Telaga Tunjung, Kabupaten Tabanan-Bali Ni Wayan Desy Wahyudiati; I Wayan Arthana; Gde Raka Angga Kartika
Journal of Marine and Aquatic Sciences Vol 3 No 1 (2017)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Zooplankton are the heterotroph aquatic organisms and has a week swimming. Zooplankton acts as the first consumer in the waters, which utilize phytoplankton as their food. This research located in Telaga Tunjung reservoir, Timpag Village, Kerambitan Subdistrict, Tabanan Regency. The reservoir is used for industry, irrigation and tourism development. The aim of the research was to determine the community structure of zooplankton in Telaga Tunjung reservoir. This research was conducted from January to February 2016. Water sampling was conducted twice with a sampling interval of 2 weeks in 4 stations. There was a total of 23 species of zooplankton found, consisting of 6 classes: Eurotatoria (8 genera), Ciliatea (1 genera), Branchiopoda (4 genera), Monogononta (1 genera), Tubulinea (1 genera) and Maxillopoda (3 genera). The most common species of zooplankton found in the sampling station were Polyarthra vulgaris (3.04 ind/l), Anuraeopsis coelata (1.28 ind/l), Keratella valga (0.43 ind/l), Vorticella sp. (0.49 ind/l), Diaphanosoma brachyurum (0.28 ind/l), Nauplius sp. (0.16 ind/l) and Megacyclops viridis (1.16 ind/l). The average abundance of zooplankton was 9.38 ind/l. Based on the abundance of zooplankton, the trophic status of Telaga Tunjung reservoir is mesotrophic.

JENIS DAN KERAPATAN PADANG LAMUN DI PANTAI SANUR BALI I Wayan Arthana
Bumi Lestari Journal of Environment Vol 5 No 2
Publisher : Environmental Research Center (PPLH) of Udayana University

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A Study of kind and density of seagrass bed at Sanur Beach Bali has done. Themethod used quadrate transect of 1x1 m. There were 4 stasiuns observed with 9quadrate transects each.Seagrass species found were seven which belong to two families and four genus,namely Enhalus acoroides, Cymodocea rotundata, Cymodocea serrulata, Halophilaovalis, Halodule uninervis, Halodule pinifolia and Syringodium isoetifolium. Thedistribution of seagrass density was more in the middle of the lagoon which is deeper andlower temperature variation. The density of seagrass bed varied of 40 - 338individuals/0,55 m2 and dominated by Enhalus acoroides. The density reduce to thelocation that more fishing activities, landing boats and disturbance by tourists.

Keanekaragaman Dan Distribusi Makroinvertebrata Di Perairan Hulu Tukad Cangkir Dan Tukad Pakerisan Kabupaten Gianyar I Gede Agus Isha Purusa; I Wayan Arthana; I Wayan Darya Kartika
Bumi Lestari Journal of Environment Vol 20 No 2 (2020)
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/blje.2020.v20.i02.p04

Cangkir and Pakerisan are two rivers which are located in Gianyar-Bali Regency, each with a length of 23 km (54.58 km2 of watershed area) and 34.5 km (58.33 km2 of watershed area). These two rivers empties into Lebih Beach that each has a species diversity and abiotic factors. At the upstream of the rivers were occupied by tourism activities that can affect the ecosystem. This study aims to determine the diversity and distribution of macroinvertebrates in the two rivers. Sampling stations were situated at upstream area with 5 stations and 3 replications (15 points) on each river. Sample identification was carried out at the Laboratory of Water Resources Management, Faculty of Marine Science and Fisheries, Udayana University. It was found four species, namely Littorina carinifera, Melanoides torulosa, Parathelphusa convexa, and Bellamya javanica. At upstream of Cangkir and Pakerisan rivers had species of random category distribution pattern with the Morisita Distribution Index value that equal to one. Physical and chemical factors had a major influence on the ecological conditions of the two rivers. The environmental conditions that consisting of substrate type, several physical and chemical parameters were unable to support the life of various biota species found in these aquatic ecosystems.

Sebaran Pola Pertumbuhan Ikan Red Devil (Amphilophus sp) Di Kawasan Danau Batur, Bali I Wayan Juliawan; I Wayan Arthana; Endang Wulandari Suryaningtyas
Bumi Lestari Journal of Environment Vol 20 No 2 (2020)
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/blje.2020.v20.i02.p05

Batur Lake is one of the lakes located in the Kintamani sub-district, Bali. This lake has abundant biodiversity, one of them is Red Devil fish (Amphilophus sp) which is a competitor of native and introduced fish. The research aims to find out the pattern of growth, size structure, and the physical and chemical conditions of waters. The method used was descriptive quantitative by using two trapping devices that were fishing rods and nets. Calculation results showed that a wide range of growth patterns of Red Devil (Amphilophus sp) fish on both trapping devices (fishing rods and nets) were grouped (Id<1). The highest sized structure value on the trapping devices (fishing rod) found in the water of Trunyan Village that was total length (TL) of 9,3 cm, Standard length (SL) of 7,3 cm, and weight: 16,5 gr. On the trapping devices (net) the highest value was found in the water of Songan Village that was total length (TL) of 13,5, SL of 11,1, and weight: 48,8 gr. The growth patterns of Red Devil (Amphilophus sp) fish based on length and weight analysis showed that were partly positive allometric and partly negative allometric. The result of the water quality measurement in the water of Batur Lake was about 26,3°C – 29,1°C (temperature), 5,36 mg/L – 6 mg/L, (DO), 7,2 – 7,8 (pH), and 87,1 cm – 147,8 cm (brightness).

STUDI KUALITAS AIR BEBERAPA MATA AIR DI SEKITAR BEDUGUL, BALI (THE STUDY OF WATER QUALITY OF SPRINGS SURROUNDING BEDUGUL, BALI) I Wayan Arthana
Bumi Lestari Journal of Environment Vol 7 No 1
Publisher : Environmental Research Center (PPLH) of Udayana University

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Spring is source of water that emerges automatically to the surface from theground. Water samples were taken from springs at Gesing village, close to Buyan lakeand at Teratai Bang Temple (PRTB), a temple in the central of Bedugul BotanicalGarden. There were twenty three parameters of water quality measured and twomicrobiological parameters observed. Six of the twenty five parameters observed wereover than standard namely BOD5, COD, Sulfide, Iron, Lead and Cadmium. The contentof BOD5 at three springs (2.03 – 8.10 mg/l) the highest at PRTB and the lowest at Gesingand all are over standard of 2 mg/l. Cadmium that over standard of 0.01 mg/l is inBuyan spring (0.013 mg/l) and at PRTB (0.012 mg/l). The highest iron is in PRTB spring(0.463 mg/l) that has been over standard of 0.3 mg/l and much higher than that in Balisprings of Sanggalangit, Pemuteran and Banyuwedang (0.1567 – 0.1817 mg/l) also overiron content in Bali lakes that below 0.150 mg/l. Conductivity content in the springs(126-275 ?S/cm), is consistent to the total suspended solid (TDS) of 150-290 mg/l inwhich at the high TDS, the conductivity is high as well and vice versa. At Buyan spring,pH value is the lowest and a bit acid (6.07) that closes related to the highest content ofsulfite (15.55 mg/l). Nitrate at the springs (3.388 – 6.735 mg/l) are high and much higherthan that in Bali springs of Sanggalangit, Pemuteran and Banyuwedang (0.422 - 0.503mg/l) also over than nitrate content in Beratan, Buyan and Tamblingan lakes that below2.5 mg/l.

KOMUNITAS IKAN KARANG DI PANTAI SAWANGAN DAN KUTUH, BALI I Wayan Arthana
Bumi Lestari Journal of Environment Vol 9 No 2 (2009)
Publisher : Environmental Research Center (PPLH) of Udayana University

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The research has been done at Sawangan coastal water (S 08o49’44,7” E 115o13’20,3”) and at Kutuh coastal water (S 08o50’46,8” E 115o12’07,9”) using manta tow survey and line intercept transect (LIT) at the depth of 9-10 m. At Sawangan it was observed 12 family with 16 species of coral fishes. Family of Lambridae had the bigest individual number (19 individual) which came from species of Cleaner Wrasse (Labroides dimidiatus) with 17 individual and Moon Wrasse (Thalassoma lunare) with 2 individual. At Kutuh it was observed 10 family with 15 species of coral fishes. Family of Pomacentridae and Chaetodontidae had the bigest individual number which came from species of Paletail Chromis (Chromis xanthura ) and Indian Vagabond Butterflyfish (Chaetodon decussatus) with 4 individual each. In total, at Sawangan and Kutuh it was observed 13 family of coral fishes. Among those 13 family, coral fish community from family of Caesionidae, Cirrhitidae and Diodontidae were not available at Kutuh, moreover coral fish from family of Pempheridae was not available at Sawangan. As an ecosystem, the condition of coral fishes at Kutuh were more stable compared to that at Sawangan in which at Kutuh, the diversity index value was bigger and dominant index value was smaller.

Co-Authors A.A. Gede Cahya Pratama Abd. Rahman As-syakur Agus Wija Atmaja Aida Sartimbul Alfi Hermawati Waskita Sari Alya Namira Anak Agung Sagung Laksmi Dewi apri i supi'i Arief Reza Fahlevi Ayu Putu Wiweka Krisna Dewi Bejo Slamet Beny Mustofa Bram Setyadji Bunga Divia Arimbi Cakranegara, Pandu Adi Candra Saputra CoK.I.M. HANDAYANI Daniel Nemba Dambe Daniel Tri Lakona Sinamo Debi Bunga Novitasari Deny Suhermawan Yusup Deptson Baringin Silaen Desak Putu Risky Vidika Apriyanthi Dewa Ayu Angga Pebriani Dewa Gde Tri Bodhi Saputra Dwi Suprapti Elok Faiqoh Endang Rustiasih Endang Wulandari Suryaningtyas Fanlia Prima Jaya Fikri Huda Falah Fina Wahyuningsih GALIH INDRAWATI Gde Raka Angga Kartika Gede Dwi Sukmawantara Gede Pasek Sutedja Gede Surya Indrawan Gemaya Wangsa Gultom, Henry Casandra Gunawan Tarigan Gusti Ayu Manik Pradnyani Habibatus Sholihah Hanifa Miranda I.H. Putri Heidi Siddiqa Heri Prabowo Herlisa Setiarini Hikmah Nurazizah Husnayati Hartini I Dewa Gede Warmadewa I Dewa Nym. Nurweda P., I Gede Agus Isha Purusa I Gede Hendrawan I Gede Surya Risuana I Gede Wahyu Surya Wirawan I Gusti Agung Bagus Arya Pradnya Pratama I Gusti Agung Dwikhy Oka Taradhipa I Gusti Ayu Diah Hendiari I Gusti Ayu Novie Sidaningrat I Gusti Bagus Suputra I Gusti Made Sudipta I Kadek Tobing Ascahya I Ketut Kasta Arya Wijaya I Ketut Swardika I Komang Dianto I Made Adi Karsa I MADE ADI PRANATHA I Made Minggu Widyantara I MADE SUDARMA I Made Suma Krisna Sravishta I Made Suwitra I Made Suwitra, I Made I Nyoman Gede Sugiartha I NYOMAN MERIT I Nyoman Sudipa I Nyoman Sumardika I Nyoman Sutama I Nyoman Sutama I Nyoman Yoga Parawangsa I Putu Eka Mahendra I Putu Yoga Pramana Putra I W BUDIARSA SUYASA I Wayan Darya Kartika I Wayan Gede Astawa Karang I Wayan Juliawan I Wayan Kasa I Wayan Restu I Wayan Sandi Adnyana I Wayan Suarna I Wayan Subawa I Wayan Wesna Astara IDA AYU ASTARINI Ida Ayu Putu Widiawati Ida Ayu Utari Dewi ida bagus adi palguna Ida Bagus Ketut Gede Kertia Ida Bagus Lampita Prabawa Ida Bagus Windia Adnyana Ifan Martin Nopem IPG ARDHANA IRMA YULIA MADJID Joko Wiryatno Josua Siagian Josua Siagian KADEK ARY ANGGRAENI KADEK ARY ANGGRENI Karyono Karyono Khadijah Irania Kolis Pratama Komang Bayu Permana Komang Gede Pramantara Komang Lina Rosita Sugiarni Krisna Jumantara Panca Putra Letia Alda Fadilla Lisa Rosalia Prayuda Ludia Panggalo Luh Putu Diah Ananda Wijayanti Luh Putu Sudini Luh Putu Suryani M Alfian Pratama M. Sudiana Mahendra Made Ayu Pratiwi Made Widya Sekarbuana Mayang Utami Meta Apriliawati Sandi Miftachudin Syaiful Ma'ruf Mohammad Rizqi Mohan Budiman MOKHLAS SATIBI Mu'tasim Billah Muh Abduh Anwar Muhammad Asir Muhammad Sawir Muhammad Yusuf Ni Desak Putu Dita Herlinawati Ni Kadek Suardiani Ni Komang Rai Widhyaningsih Ni Luh Ayu Gita Astriani Ni Luh Ayu Gita Astriani Ni Luh Gede Ambarawati Ni Luh Gede Rai Ayu Saraswati Ni Luh Made Ari Sugianthi Ni Luh Putu Citra Adriyanti Ni Luh Watiniasih Ni Made Ary Widiastiti Ni Made Ernawati, Ni Made Ni Made Putri Kartika Jati Ni Putu Ayustin Krisnati Dewi Ni Putu Bella Yuliana Dewi Ni Putu Putri Wijayanti Ni Putu Sawitri Nandari Ni Putu Vivin Nopiantari Ni Putu Wiwin Angreni Ni Wayan Desy Wahyudiati Ni Wayan Ernawati NI WAYAN FEBRIANA UTAMI Ni Wayan Indah Purnamawati Nyoman Dati Pertami Octria Vesensia Olivia Grace Brigitta Florencia Pandu Pratama Putra Putra, I Nyoman Giri Putri Eka Cahyani Putri Febrine Nainggolan Putri Nilakandi Perdanawati Pitoyo Putu Agus Arisudana Putu Ayu Irma Wirmayanti Putu Dyah Prastiti Sukma Febriany Rachmat Andi Saputra Rani Ekawaty Ranny R. Yuneni Ravita Kusuma Dewi Rifaldus Dani S.A NYOMAN PUTRI TRIANTINI Sang Ayu Indah Sukma Dewi Stephanus Tambunan Suciati - SUCIKA ARMIANI, SUCIKA Suko Ismi Supardiono Supardiono Suprabadevi Ayumayasari Saraswati Suprabadevi Ayumayasari Saraswati Suprabadevi Ayumayasari Saraswati Suprabadevi Ayumayasari Saraswati SUPRATMAN - suryawan, Gusti Bagus Susumu Kanno Syachry Banun Takahiro Osawa Takahiro Osawa Takahiro Osawa Teguh Prayogo Widiastuti Widiastuti Widiati, Ida Ayu Putu Yoga Ibnu Graha Yuli Krisnawati YUNALDI YUNALDI Yuniarti K. Pumpun

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