Garuda - Garba Rujukan Digital

p-Index From 2021 - 2026

3.058

P-Index

This Author published in this journals

All Journal Jurnal Ilmu Pertanian Indonesia Journal of Marine and Aquatic Sciences Jurnal Biologi Udayana Bumi Lestari Ecotrophic, Journal of Environmental Science Jurnal Penelitian Pendidikan IPA (JPPIPA) 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 Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Energy Environmental Science Materials Science & Nanotechnology Physics Other

Published : 41 Documents Claim Missing Document

Claim Missing Document

Articles

1 2 3 4 5

ANALISIS KUALITAS AIR DANAU SEBAGAI DASAR PERBAIKAN MANAJEMEN BUDIDAYA PERIKANAN DI DANAU BUYAN KABUPATEN BULELENG, PROVINSI BALI I Wayan Rian Riki Saputra; I Wayan Restu; Made Ayu Pratiwi
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 11 No 1 (2017)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

LAKE WATER QUALITY ANALYSIS AS A IMPROVEMENT BASIS OF AQUACULTURE MANAGEMENT IN BUYAN LAKE REGENCY OF BULELENG, BALI PROVINCE Buyan Lake is one of the lakes in Bali province. That located at Pancasari Village, District of Sukasada, Buleleng Regency. This lake they are many utilication of the lake such as agriculture, tourism and aquaculture activities. Those activities are considered to contribute an eutrophication in this lake. In order to investigate the effect of of floating net cages activity in Buyan Lake, the research about “The Analysis of Water Quality as a Basic Improvement of Aquaculture Management in Buyan Lake” was conducted This research method used in this study was done by observation method and took the samples in situ (at Buyan Lake site) and samples analysis was done by ex situ (at UPT. Laboratorium Kesehatan Propinsi Bali). They were 2 water quality parameters such as some physic parameters (temperature, clarity and turbidity) and chemistry parameters (pH, DO, ammonia, nitrate, BOD, COD, sulfide and phosphate). The data analysis of this research was analysis conducted by STORET index and pollution index (PI). Base on the analysis using STORET index, pollution status in Buyan Lake was heavily contaminated with average score of -82. The highest score was obtained in station 3 (-98). The results of pollution index showed that Buyan Lake has a lightly contamination with average score 3,4347 whereas the highest pollution index score was obtained in sation 4 (3.8673).

KEANEKARAGAMAN LAMUN DAN MAKROZOOBENTOS SEBAGAI INDIKATOR KONDISI PERAIRAN PANTAI SINDHU, SANUR, BALI I Made Sara Wijana; Ni Made Ernawati; Made Ayu Pratiwi
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 13 No 2 (2019)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Sindhu Beach is part of the Sanur beach area. Sanur area is one of 11 strategic national tourism areas in Bali. Beach tourism activities have the potential to cause degradation of coastal ecosystems. Ecosystem changes can be determined using bioindicators. This study aims to determine the condition of the Sindhu Coast waters ecosystem based on seagrass diversity and macrozoobenthos as indicators. This research was conducted in November 2019 at Sindhu Beach. Seagrass observations and macrozoobenthos sampling were carried out at four stations with three replications at each station. Data and samples were collected using the quadratic transect method. Eight species of seagrass were found in Sindhu Beach with a percentage of cover between 16.33% - 63.37% and density between 1572 ind / m2 - 3314.4 ind / m2. The average value of the seagrass diversity index was 1.24, the average uniformity index was 0.78, and the average dominance index was 0.32. Types of macrozoobenthos found were 23 species with abundances ranging from 2.33 ind / m2 - 28.33 ind / m2. The average value of macrozoobenthos uniformity index is 1.50, the average diversity index is 0.68 and the average dominance index is 0.36. Based on the index value shows that the waters of Sindhu Beach are in good condition or there is no ecologically significant pressure.

KESESUAIAN EKOSISTEM TERUMBU KARANG UNTUK KEGIATAN WISATA SELAM DI NUSA LEMBONGAN, BALI Made Ayu Pratiwi; Ni Made Ernawati; Ni Putu Putri Wijayanti
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 15 No 1 (2021)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/EJES.2021.v15.i01.p01

Nusa Lembongan islands, Bali have a potential of coral reef diversity. Coral reefs have both ecological and high economic potential so that they are widely used. The economic benefits of coral reefs make these ecosystems very vulnerable to pressure from human activities. One of these human activities is the use of coral reefs in diving tourism activities. This research aimed to determine suitability and carrying capacity of coral reef ecosystem on Nusa Lembongan Island so that it can be recommended to manage coral reef ecosystem strategies to support the use of diving tourism. This study was conducted on six dive sites as observation points Observations on coral reef ecosystems were carried out using the intercept transect (LIT) method, and reef fish observation was carried out using the fish visual census method. Water quality sampling will be done in situ. Diving suitability was carried out by estimating the tourist suitability index (IKW) of six parameters, namely the brightness of the waters, coral community cover, coral life form, reef fish species, coral reef depth and current. The tourism suitability index value for the diving tourism category obtained was 74.07% (Jack Mangrove); 57.41% (Crystal Bay); and 61.11% (Manta Bay). The value for each observation point is included in the appropriate category of 50% -75%. It can be interpreted, that all observation points which are dive sites in Nusa Lembongan have supported diving tourism activities.Keywords: Tourism Suitability Index; Diving; Nusa lembongan.

STRUKTUR KOMUNITAS EKOSISEM PADANG LAMUN PADA DAERAH INTERTIDAL DI PANTAI SANUR, BALI Made Ayu Pratiwi; Ni Made ERNAWATI
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 12 No 1 (2018)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Coastal ecosystem is a productive ecosystem and has high ecological and economic value. Coastal ecosystem components, consist of coral reefs, seagrass beds, mangroves and various types of biota. The seagrass ecosystem is one of the most unique coastal ecosystems because the seagrass can live well in high salinity conditions. Seagrass ecosystem in Bali Island has many adventages and widely used for marine tourism activities. One of the marine tourism sites, that take advantage of the beauty of the seagrass ecosystem in Bali is Sanur beach. The utilization of seagrass ecosystem for marine tourism activities might be influence the structure of seagrass community. Therefore, the study about Community Structure of Seagrass Ecosystem at Intertidal Area in Sanur Beach is very important to carried out in order to investigate the structure of the seagrass ecosystem community. Samples were taken in the intertidal zone at six observation stations. At each station, it was conducted three times perpendicular repetition to the shoreline. Seagrass observation was done by using quadratic transect (50 × 50 cm). The types of seagrass found in Sanur Beach were 6 species, namely Cymodocea serrulata, Cymodocea rotundata, Halophila ovalis, Halodule uninervis, Halodule pinifolia, and Syringodium isoetifolium. Cymodocea serrulata is a seagrass-type found in every observation station, and it able to live well in Sanur Beach water characteristics. The highest average of seagrass species density is shown by the Cymodocea serrulata species of 175.11 stands/m2, while, the highest average of seagrass species density is shown by the Halodule pinifolia species of 27.33 stands/m2. The average of diversity, uniformity and dominance index at Sanur Beach reach 0.8682; 0.7347; and 0.4987, respectively. In Sanur Beach area, the seagrass has high uniformity value and stable community. The instability community has been found at station 2 when the dominance of Cymodocea serrulata species was occurred. Keywords: Community structure; Sanur Beach; seagrasse cosystem

PENILAIAN STATUS DOMAIN SUMBER DAYA IKAN LEMURU DENGAN PENDEKATAN EKOSISTEM YANG DIDARATKAN DI PPI KEDONGANAN, BALI Ketut Tika Suariningsih; I Wayan Restu; Made Ayu Pratiwi
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 15 No 2 (2021)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/EJES.2021.v15.i02.p08

PPI Kedonganan is a fish landing base located in Kedonganan Village, Kuta District, Badung Regency. One of the fish commodities that landed at PPI Kedonganan is Lemuru Fish (Sardinella lemuru). The high rate of catching Lemuru must be balanced with proper management so that Lemuru Fish Resources remain sustainable. This study was conducted to determine the status of the utilization of Lemuru fish resources. The study was conducted from January 2021 to March 2021. Data collection was carried out by observation and interviews. Data analysis of each indicator was carried out using a multi-criteria analysis approach with composite index assessment and visualization by flag model. Indicators were observed the trends of fish size, the proportion of juvenile fish were caught, the species composition, range collapse of fish resources, Endangered, Threatened, and Protected species. The status assessment of the Lemuru resource domain which landed at PPI Kedonganan is in the good category with a composite value of 66.7. Results of the trend indicators of fish size is relatively fixed, the proportion of fish juvenile caught about 90%, the composition of species caught was 100% of the target fish i.e, lemuru that caught by using gill net, range collapse of fish resources as much as 57% of fishermen expressed relatively fixed in looking for fishing grounds, and ETP species not found. Keywords: EAFM; Lemuru Fish; Fisheries Management; PPI Kedonganan.

Aspek Reproduksi Ikan Lemuru (Sardinella lemuru) yang Didaratkan di Pelabuhan Perikanan Nusantara (PPN) Pengambengan, Bali Ribka Evanzelina Laia; I Wayan Restu; Made Ayu Pratiwi
Current Trends in Aquatic Science Vol 4 No 1 (2021)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar

Sardinella (Sardinella lemuru) is a type of small pelagic fish which very important and economic value in Pengambengan Nusantara Fishing Port (NFP). Sardinella resources are stated to be in overfishing were marked by the catch that is getting smaller and the production has decreased every year. The situation of Sardinella resources in Bali Strait, especially in Pengambengan NFP must be maintained by managing, then stocks of Sardinella can be utilized sustainably. This research aims to provide an overview of conditions and threats to Sardinella around Pengambengan NFP as one of the largest fishing ports in Bali Strait includes Sardinella fisheries production in Pengambengan NFP, sex ratio, gonad maturity level, gonad maturity index, conditions factor, so Sardinella resources can be created sustainable. This research uses a simple random sampling method, by taking fish randomly from traders who contain various lengths and weights of Lemuru in Pengambengan NFP. Lemuru production from 2009-2018 in PPN Pengambengan has increased and decreased, this is due to several factors such as environmental changes and fishing activities by fishermen. The sex ratio of Sardinella landed in Pengambengan NFP has a ratio of 0.8: 1. Gonad Maturity Level obtained in TKG I and TKG II so the Gonad Maturity Index found was around 0.0291-0.2188. The range of condition factors from 0.9-1.4, it means Sardinella in the plump category.Sardinella lemuru; PPN Pengambengan; Reproduction

Kajian Aspek Reproduksi Ikan Tongkol (Auxis thazard) yang Didaratkan di Pantai Segara Kusamba, Bali pada Musim Barat Ni Luh Sari Risna Dwi Jayanti; Ima Yudha Perwira; Made Ayu Pratiwi
Current Trends in Aquatic Science Vol 4 No 1 (2021)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar

Frigate Tuna is one of the most economical catched fish at the Segara Beach, Kusamba. This study was aimed to observe the reproduction aspect of Frigate Tuna (Auxis thazard). The reproduction aspect observed in this study were: sex ratio, gonado-somatic index (GSI), gonad maturity level (GML), fecundity, and first length of maturity. The condition factor was also observed in this study. Sampling was carried out from November to December 2019 by collecting 84 individuals of Frigate Tuna fish. The result showed that the sex ratio between male and female showed balance condition with sex ratio value of 1:1.8. Analysis on the gonad showed that Gonado-somatic index (GSI) of male and female were were 0.0124 – 0.0308 % and 0.0142 – 0.0254 %, respectively. The fecundity of the fish was ranging from 106,430.6 to 518,843.9 eggs. The length of the first maturity for male and female was 337.716 ± .012 mm and 333.053 ± 0.009 mm, respectively. Total length of the fish was ranging from 317 to 405 mm, while the body weight was ranging from 414.27 to 854.52 gram.

Aspek Reproduksi Ikan Tongkol Abu-Abu (Thunnus tonggol) Yang Didaratkan Di Pelabuhan Pendaratan Ikan Kedonganan Hanif Abdullah; I Wayan Restu; Made Ayu Pratiwi; Gde Raka Angga Kartika
Current Trends in Aquatic Science Vol 3 No 2 (2020)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar

Longtail tuna is one of the most important pelagic fish species found in Indo-Pacific waters, living in neritic areas. This study aimed to know about reproduction aspect of Longtail Tuna such as gonado somato index, fecundity and length of first maturity. This research was carried out for 5 months from October 2018 to January 2019. The research was conducted in Kedonganan fish landing port. Data analysis that used was the level of gonad maturity, gonad maturity index, fecundity, sex ratio and length of gonad maturity. Longtail tuna at Kedonganan fish landing port actively reproduce in October 2018. The highest value of maturity index of the gonad in October 2018 at Kedonganan fish landing port, shows that in that month is the peak of spawning season. This is in accordance with the number of fish caught more at the size of gonad maturity level III and IV in that month. Longtail tuna’s fecundity is around 18.000-24.000. Fish sex ratio of male and female is unbalanced. Differences in the number of Male and female is suspected because of differences in fish areas in spawning and foraging. The first length of maturity (Lm) of longtail tuna in the waters of the Kedonganan fish landing port were 488-496 mm fork length.

Kajian Pertumbuhan Ikan Tongkol (Auxis Thazard) yang Didaratkan di Pangkalan Pendaratan Ikan (PPI) Kusamba, Kabupaten Klungkung, Bali Pada Musim Barat Komang Kerta Sanjaya; I Wayan Restu; Made Ayu Pratiwi
Current Trends in Aquatic Science Vol 2 No 1 (2019)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (963.149 KB)

Abstract Kusamba village is one of the villages with the potential of Frigate Tuna fishery in Bali. Frigate Tuna is one type of fish commodity as main targets because it has economic value. This study aims to determined the fishery activities, growth patterns, and growth parameters of Frigate Tuna (Auxis thazard) at Fish Landing Station (PPI) of Kusamba. The fish samples were sampling by simple random sampling (PCAS) method was taken every twice a week in six month (October 2017-March 2018). Data collecting was directly at Fish Landing Station (PPI) of Kusamba. The results showed that the highest frequency of fish fork lenght was dominated at 247,5 mm – 263,1 mm. That size is an immature fish size because its size is less than the average size of mature fish. The condition factor indicates about the fish have condition factor between 1,152-1,490. The growth pattern of the Frigate Tuna (Auxis thazard) during the study was allometrik negative with the value of b variable is 2,6744 where the length growth was more dominant than weight growth of Frigate Tuna. The value of L? is about 567,016 mm with growth coefficient (K) is 0,0345 years-1. A small value of K can influence the time of the fish reaches its asymptotic lenght.

Tingkat Dekomposisi Bahan Organik pada Sedimen Tambak Udang Vanname di Desa Musi, Kecamatan Gerokgak, Buleleng, Bali Ahmad Fauzi; Ima Yudha Perwira; Made Ayu Pratiwi
Current Trends in Aquatic Science Vol 3 No 2 (2020)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar

Penelitian ini bertujuan untuk mengetahui tingkat dekomposisi bahan organik dalam sedimen tambak udang Vanname. Penelitian dilaksanakan di desa Musi, Kecamatan Gerokgak, Kabupaten Buleleng, Bali. Kegiatan budidaya udang vannamei menghasilkan bahan organik yang terus-menerus terakumulasi pada substrat dasar tambak, sehingga dapat mengurangi kualitas media budidaya dan kualitas perairan di sekitarnya. Penelitian ini dilaksanakan pada bulan April 2019. Sampel sedimen dan sampel air dikumpulkan dari 10 kolam yang dipilih secara acak. Pengambilan sampel sedimen dilakukan melalui saluran pembuangan central/tengah. Sedangkan sampel air diambil secara langsung pada tambak. Karbon organik (OC) diukur dengan menggunakan Metode Walkley and Black, Total Nitrogen (TN) diukur menggunakan Metode disltilasi Kjeldahl secara titrasi, Total Bakteri (TB) diukur menggunakan Metode Total Plate Count (TPC) dengan tekhnik spread plate. COD air diukur menggunakan metode titrimetri berbasis permanganat, sedangkan DO diukur menggunakan Metode Winkler. PH air diukur menggunakan pH meter, dan suhu diukur menggunakan termometer. Hasil penelitian menunjukkan bahwa rata-rata Karbon Organik (OC) dalam sedimen adalah 20,2%, Total Nitrogen (TN) 1,0%, dan Total Bakteri (TB) 15 × 106 CFU/gram. Nilai rasio C/N pada sedimen didapatkan sebesar 22. Rata-rata COD air adalah 18,3 mg / L, DO adalah 7,4 mg / L, pH 6,8, dan suhu 30,2oC. Hasil ini menunjukkan bahwa dekomposisi bahan organik dalam sedimen tambak udang Vannamei di desa Musi dalam kondisi seimbang.

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 Nastiti, Amayliana Ajeng Natasya Caterina 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 Suryaningtyas, Endang Wulandari Yufinta Cahya Permanti Yusli Wardiatno

Title

Found 41 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 41 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 41 Documents
Search