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All Journal Jurnal Ilmu Pertanian Indonesia Journal of Marine and Aquatic Sciences Bumi Lestari Ecotrophic, Journal of Environmental Science Jurnal Pengelolaan Perikanan Tropis (Journal Of Tropical Fisheries Management) Current Trends in Aquatic Science Jurnal Perikanan

Made Ayu Pratiwi

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

Author-ID : 2926657

Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Energy Environmental Science Other

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Analisis Ecological Footprint Sistem Perikanan di Kawasan Taman Wisata Perairan Gili Matra, Lombok Utara Made Ayu Pratiwi; Yusli Wardiatno; Luky Adrianto
Jurnal Ilmu Pertanian Indonesia Vol. 19 No. 2 (2014): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (709.855 KB)

Gili Matra Aquatic Park is a conservation area located in Gili Indah Village, North Lombok. It is one of marineprotected areas that has a wide range of potential resources, i.e. fish resources and ecosystems. The potency offish resources and marine ecosystems is utilized in fisheries and tourism activities. Non responsible fisheries andtourism activities can cause ecosystem degradation and fish extinction. The existence and preservation of fishresources is the main key to successful fisheries management in Gili Matra. Therefore, it is necessary to study theecological footprint to estimate the carrying capacity of fisheries in Gili Matra Aquatic Park. This study wasconducted in May June at TWP Gili Matra. The ecological footprint analysis showed that EF in Gili Indah village is0.1 x 10-6 km2/kapita. When the population of Gili Indah village in 2014 are 3.694 people, the area of EF is 0.55 km2.Compared with 18.97 km2 sustainability fisheries zone of TWP Gili Matra, so this is referred to undershoot. The useof EF fishery is still smaller than available area and the resources can reproduce and maintain its ecologicalfunctions.

Status Pencemaran Lingkungan Sungai Badung dan Sungai Mati di Provinsi Bali Berdasarkan Bioindikator Phylum Annelida Mawardi Labbaik; I Wayan Restu; Made Ayu Pratiwi
Journal of Marine and Aquatic Sciences Vol 4 No 2 (2018)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Water pollution is the entry or inclusion of substances, energy and other components into the water by human activities, so that water quality decrease to a certain level. This study a timed to monitor the pollution of aquatic environment in the Badung River and Mati River by using Annelida phylum as bioindicator, the study was conducted from February to March 2017. The data obtained were analyzed by the structure of the community, and also used ABC (Abudance-Biomass Comparison) method. The result of the research showed that the most abundance of Annelida and dominant from all stations of Badung River and Mati River was Lumbriculus variegatus. Is showed that it contamination status was categorized as mild contamination because it was dominant by facultative organism. The structure of the Annelida community in the Badung River and Mati River with the value of the diversity index was categorized as low Annelida (H '<1.0). The uniformity index was categorized as depressed Annelida community (0.00 <E 0.50), high dominance index of Badung River (0.75 <C ? 1.00), Mati River was medium (0.50 < C < 0.75). The result of the water quality range as the supporting factor showed the average support for Annelida life i.e the current velocity 0.16 - 0.61 m/s, the temperature 25.5 - 31oC, DO 3-7.2 mg/l, pH 7.77 - 8.44 and BOD5 0.5 - 3.1 mg/l. The analysis environmental pollution condition of Badung River and Mati River with Annelida as bioindicator by using ABC method showed that were medium contaminated.

Biologi Reproduksi Ikan Tongkol Abu-Abu (Thunnus tonggol Bleeker, 1851) Yang Tertangkap Di Perairan Selat Bali Made Ayu Pratiwi; Gde Raka Angga Kartika
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.p07

The aimed of this study was to determine the reproductive biology aspects of longtail tuna, namely the gonad maturity level, gonadal maturity index, fecundity and length of first maturity. Fish samples were obtained from the catches of fishermen in the Bali Strait which landed at PPP Muncar from December 2018 to February 2019. Gonad maturity level of longtail tuna in December 2018 was mostly found in immature conditions (TKG I). TKG III and IV are most commonly found in February. The highest IKG value was found in February 2019 (0.017). This can be interpreted that lontail tuna experienced peak spawning and was actively reproducing in February. The sex ratio of gray tuna is dominated by male. Fecundity at TKG III ranged from 18,800 to 33,200 grains and at TKG IV of 154,000 grains. The length of first maturity of longtail tuna was 495 mmFL (male) and was 487 mmFL (female).

Potensi Sumberdaya Lamun Untuk Mendukung Pengembangan Wisata Di Pantai Mengiat Nusa Dua, Bali Ida Ayu Novera Wandiani; I Wayan Restu; Made Ayu Pratiwi
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.p10

Seagrasses have functions and roles as primary producers, biota habitats, bottom seawater stabilizers, sediment catchers, and nutrient recyclers. With the function of seagrass as a habitat of biota, it can provide economic opportunities to be utilized as a marine tourism, especially marine ecotourism. Marine ecotourism is a concept of sustainable use of coastal resources with environmental service system that prioritizes coastal natural resources as an object of service. This study aimed to identify the seagrass potency ecologically and socially and to formulate the seagrass management strategies to support tourism development in Nusa Dua. This study was conducted from January-March 2017 using observation and interview method. Observation method was used to define the condition of seagrass, fish species, and environmental parameters. Then Interview method was used to know social conditiion of Mengiat Beach and analyzed by SWOT to formulate the seagrass management strategies. The result showed, there were 6 species, i.e., Halophila ovalis, Cymodocea Halodule pinifolia rotundata, Syringodium isoetifolium, Thalassia hemprichii, and Thalassodendron ciliatum. The percentage of seagrass coverage at 5 stations tend to be low (5,639%-47,49%). Based on Tourism Suitability Indexes, Mengiat Beach in Nusa Dua is suitable (S2) for tourism activities with value 75,08%. The priority strategies are formulated from the SWOT matrix is applying under water garden in seagrass base on tourism planning.

Phylogenetic Study of Zebrafish (Amatitlania nigrofasciata) as an Introduction Spesies in Buyan Lake Bachori Dhian Pratama; Pande Gde Sasmita Julyantoro; Made Ayu Pratiwi
Journal of Marine and Aquatic Sciences Vol 5 No 1 (2019)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Buyan Lake has some fishery commodities which were often encountered include the Zebrafish (Amatitlania nigrofasciata). The origin existence of Zebrafish in Buyan Lake is not yet known then it needs study in order to know the certainty of species, phylogenetic, haplotype diversity, and phenotype characteristic. The study was conducted from January to February 2018. Molecular identification was done at Laboratory of Biodiversity Indonesia Bali. This research used quantitative and qualitative descriptive methods. Sampling was done by simple random sampling from fisherman catches. Zebrafish’s fin samples were used for molecular identification and Zebrafish’s morphological for morphological identification. The results showed that the entire sequence samples were successfully amplified with the Cytochrome Oxidase subunit I (COI) gene of 620 bp. The genetic distance in the entire Zebrafish sequences in Buyan Lake of 0 which means that the sequence of all samples are exactly similiar as species of Amatitlania nigrofasciata with the genetic distance calculation of 0. Sequence of Zebrafish in Buyan Lake is closely related to Amatitlania nigrofasciata KU568740, Amatitlania nigrofasciata KU568739, Amatitlania nigrofasciata KU568737, Amatitlania nigrofasciata KJ552531, and Amatitlania nigrofasciata KU568738 with genetic distance of 0 and has a distant relation with Rocio ostofasciata EU751752 with genetic distance of 0.113. The haplotype diversity of Zebrafish sequences in Buyan Lake showed the value of 0 which belongs to a low haplotype diversity. Black and Black Zebrafish with Red Spotted are in a different clade with Albino and Albino Zebrafish with Red Spotted with bootstrap value of 100, means they have phenotypically differences.

Pola dan Parameter Pertumbuhan Ikan Tangkapan Dominan (Oreochromis niloticus, Osteochilus sp. dan Xiphophorus helleri) di Danau Buyan Bali I Made Suma Krisna Sravishta; I Wayan Arthana; Made Ayu Pratiwi
Journal of Marine and Aquatic Sciences Vol 4 No 2 (2018)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Bali Province has four lakes one of them is Buyan Lake. The benefits of Buyan Lake are as a reserve of water used to flow agriculture, settlements and for tourism attraction. In addition there is also the potential of Buyan Lake natural resources of fish is quite abundant. But there are threats arising from the utilization in Buyan Lake so it is feared to disrupt the growth of fish. Therefore it is necessary to do research concern with growth pattern and parameter of dominant catch fish in Buyan Lake. The aimed of this research was to determined the composition of fish catches, estimate the frequency distribution of fish catches and estimate growth patterns and growth parameters of dominant catch fish in Buyan Lake. This research was conducted from February to March 2017. There were nine species captured during observation such as Oreochromis niloticus, Osteochilus sp., Xiphophorus helleri, Rasbora lateristriata, Cyprinus carpio L, Amatitlania nigrofasciata, Puntius sp., Clarias gariepinus and Macrobrachium rosenbergii. The growth pattern of Oreochromis niloticus, Osteochilus sp. and Xiphophorus helleri in Lake Buyan have the same growth pattern that were allometric negative (b <3). Oreochromis niloticus growth parameter obtained L? of 255.1926 mm, K value of 0.2833, t0 value of -0.3260, Osteochilus sp. growth parameter obtained L? value of 251.3837 mm, K value of 0.5261 t0 value of -0.1697, Xiphophorus helleri growth parameter obtained L? value of 82.5826 mm, K value of 0.2379, t0 value of -0.5338. Osteochilus sp. had the highest growth coefficient of 0.5261.

Analisis Kualitas Air dan Kepadatan Moluska pada Kawasan Ekosistem Mangrove, Nusa Lembongan Made Ayu Pratiwi; Ni Made Ernawati
Journal of Marine and Aquatic Sciences Vol 2 No 2 (2016)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Mangrove is one of the coastal ecosystem is able to grow in fluctuating water conditions. Mangrove areas are found on the Nusa Lembongan island, Bali, is a ??mangrove ecosystem that have the unique characteristics of water area. The mangrove area is located on one of the small islands in Bali that have no source of freshwater input and there is the entrance of water into the mangrove forest. The uniqueness of waters in mangrove ecosystem will affect the type and density of fauna associated, particularly mollusca. Mollusca are one of the animals that live and thrive in the mangrove ecosystem. Therefore, it is necessary to study which aimed to provide a description of the water quality and mollusca on mangrove ecosystem in Nusa Lembongan. This research was conducted in June 2015 on a six station observation. Measurement of water quality conducted on four water parameters such as temperature, DO, pH, and salinity. Observation on the type and density of mollusca done using transects squared (1 x 1 meter). The range of values ??obtained water quality parameters, such as; 1) salinity (32.00-34.33 ppm), 2) pH (7.06-7.96), 3) temperature (27.27-30.13 Celsius), and 4) DO (2.60-6.90 mg/l). Water quality parameter values ??obtained are still in the range of water quality standard and suitable place to live and grow for marine biota life. Dissolved oxygen (DO) value was still below the threshold quality standard. There six families of mollusca found in six observation station, such as Neritidae, Littorinidae, Columbellidae, Olividae, Carditidae, Muricidae, Potamidae, Certthiidae. The highest density was in Family Potamidae (1.83 ind/m2), so the Family Potamidae is able to adapt and have a wide area deployment.

Analisis Sistem Traceability Produk Tuna Ditinjau Dari Aspek Supply chain PT Hatindo Makmur Pande Ditha Prasatia; Elok Faiqoh; I Gusti Bagus Sila Dharma; Made Ayu Pratiwi
Journal of Marine and Aquatic Sciences Vol 6 No 2 (2020)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/jmas.2020.v06.i02.p14

Indonesian tuna fisheries dominate world tuna production. One of the priority water areas as tuna fishing catchment is the Sendang Biru Aquatic area, because it has Pondokdadap Fish Landing Center and is the center of largest fishing activity in Malang. The international market wants a guarantee of high quality and food safety, this is supported by the implementation of traceability systems. Own traceability is way to guarantee food quality by tracking information about the position of product. The purpose of this study is to describe the supply chain system of PT Hatindo Makmur, describe the readiness to implement traceability, and develop a strategy to support the implementation of traceability. The method used is a survey and questionnaire using descriptive analysis. The results of the analysis show that the Supply chain system is carried out by several parties fishermen, PPI Pondokdapdap, CV Berkah Alam, and PT Hatindo Makmur. The readiness of fishermen in Sendang Biru the implementation of traceability systems is categorized as ready with a percentage of 79%. The strategy that can be implemented is optimize the use of tuna resources, develop a simple traceability system for handling, collaborate with NGOs to socialization and training traceability and application to fishermen, use modern technology in recording and managing permits, Providing incentives to fishermen from companies to follow regulations, monitoring and controlling fishing activities, developing owned facilities to manage ship registration and licensing at ports, increasing socialization of the importance of catch data to the results of the sale.

Penilaian Status Sumberdaya Ikan Hasil Tangkapan Dominan yang Didaratkan di PPI Kedonganan dengan Pendekatan Multi-Criteria Analysis (MCA) Made Ayu Pratiwi; Ni Made Ernawati; Ni Putu Putri Wijayanti
Journal of Marine and Aquatic Sciences Vol 6 No 2 (2020)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/jmas.2020.v06.i02.p1

Fishes are an open access resource so that monitoring of fishing in the sea is very difficult. It is feared will lead to overfishing which eventually led to a drastic reduction in fish stocks in nature. So that people will be faced with the problem of scarcity of fish resources. One of the fish landing sites in Bali is Pangkalan Pendaratan Ikan (PPI) Kedonganan located in Fishery Management Area of Republic Indonesia (WPP-RI) 713. Therefore, it is necessary to understanding the current status of fish resources is very important in order to be a strong foundation in the management fisheries in PPI Kedonganan. The study was conducted by assessing five indicators of fish resources (fish size, yuwana fish, species composition, range collapse, and ETP species) by establishing a set of criteria, scores and weights and analyzed by multi-criteria analysis (MCA) approach. There found 16 species of catch fish with Cob Fish as dominant catch fish (54%). The trend of changes in fish size has increased significantly by + 90.18% of the initial length (Indicator of fish size). An average of 99% of fish catched were the target fish (Indicator of species composition). An average of 28.33% of fish catches included yuwana fish (Indicator of yuwana fish proportion). The results of interviews, it was found that 73% of fishermen state that fishing areas increasingly difficult from year to year (Indicator ranges collapse). There were <20% of fish catches including protected species (Scomberomorus commerson and Sphyrna lewini). It is also supported based on fisherman interview data that there were still protected fish such as turtles, sharks and rays that are caught but in small quantities (Indicator of ETP fish species). The result of composite analysis showed that the status of fish resources in Kedonganan was still very good with composite value of 86.1.

ANALISIS KUALITAS FISIKA PERAIRAN BERDASARKAN NILAI PADATAN TERSUSPENSI DAN KEKERUHAN PERAIRAN DI BENDUNGAN TELAGA TUNJUNG DESA TIMPAG, KECAMATAN KERAMBITAN, KABUPATEN TABANAN – BALI Dewa Gde Tri Bodhi Saputra; I Wayan Arthana; Made Ayu Pratiwi
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 10 No 2 (2016)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Telaga Tunjung reservoir has a function for irrigation for around 1.335 Ha irrigation land. Beside, also for supplying clean water to the household in 6 village in Selemadeg District, 2 village in Kerambitan District and 1 village in Tabanan District. The clean water also used in Soka tourism area and in Berembeng village. Telaga Tunjung reservoir also used for water resources conservation. This research aim to know total suspended solid at Telaga Tunjung reservoir as a reference for reservoir management. The method of this research were survey method and laboratory analyzing. The results of TSS in Telaga Tunjung reservoir were 2.667-91.278 mg/L. The lowest value of TSS was in January and the highest in February. The condition of TSS was in January (no rain). The difference between inlet and outlet was 19.051 mg/L or 61,22 %. In the downstream of reservoir, the TSS was getting lower. In February the differences between inlet and outlet was 53.315 mg/L or 140,43 %. The TSS at inlet, upstream and outlet in February increased significantly compared that in January and March. In February there was some location that exceed the second class water standard of central Government Regulation Number 82 in 2001 and Bali’s Governor Regulation number 8 in 2007.

Co-Authors Ahmad Fauzi Angel Maria Arief Atanasius Jenarut Ayu Padma Sari Bachori Dhian Pratama Cintya Kriss Jayanthi Desak Putu Permathasari Dewa Gde Tri Bodhi Saputra Elok Faiqoh Endang Wulandari Suryaningtyas Gde Raka Angga Kartika Ghina Nafis Rahmatullah Hanif Abdullah I Gusti Agung Bagus Arya Pradnya Pratama I Made Sara Wijana I Made Suma Krisna Sravishta I Putu Yoga Pramana Putra I Wayan Arthana I Wayan Restu I Wayan Rian Riki Saputra Ida Ayu Novera Wandiani Ima Yudha Perwira Indah Nurtira Ketut Tika Suariningsih Kindy Nurrani Annisa Komang Kerta Sanjaya Krisna Jumantara Panca Putra Luky Adrianto Mawardi Labbaik Muhammad Alfiansyah Mahmud Ni Luh Kade Putri Purwaningsih Ni Luh Sari Risna Dwi Jayanti Ni Luh Watiniasih Ni Made Ernawati, Ni Made Ni Putu Putri Wijayanti Nyoman Dati Pertami Pande Ditha Prasatia Pande Gde Sasmita Julyantoro Ribka Evanzelina Laia Roni Adi Samba S.A NYOMAN PUTRI TRIANTINI Sang Ayu Indah Sukma Dewi Yufinta Cahya Permanti Yusli Wardiatno

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