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All Journal METAMORFOSA Journal of Biological Sciences Journal of Marine and Aquatic Sciences Jurnal Biologi Udayana Bumi Lestari SIMBIOSIS Current Trends in Aquatic Science Samakia: Jurnal Ilmu Perikanan Advances in Tropical Biodiversity and Environmental Sciences INTERNATIONAL JOURNAL OF ECONOMIC LITERATURE

Ayu Putu Wiweka Krisna Dewi

Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan Dan Perikanan, Universitas Udayana

Author-ID : 3755135

Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Economics, Econometrics & Finance Energy Environmental Science Immunology & microbiology Veterinary Other

Published : 27 Documents Claim Missing Document

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Kajian Pengembangan Usaha Budidaya Rumput Laut Di Pantai Kutuh, Badung, Provinsi Bali Ayu Putu Wiweka Krisna Dewi; Suprabadevi Ayumayasari Saraswati
Journal of Marine and Aquatic Sciences Vol 2 No 1 (2016)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Usaha budiaya rumput laut merupakan salah satu komoditas unggulan perikanan yang sebagian besar masih ditekuni oleh masyarakat peisisr di Kabupaten Badung. Salah satu wilayah yang merupakan pusat pengembangan budidaya rumput laut adalah di Kecamatan Kuta Selatan, Kabupaten Badung yaitu tepatnya di Pantai Kutuh, Desa Kutuh. Pantai kutuh yang sekarang dikenal sebagai Pantai Pandawa berkembang menjadi daerah pariwisata. Perkembangan itu dapat mempengaruhi perkembangan usaha budidaya rumput laut yang sudah ada sebelumnya, namun pembudidaya tetap mempertahankan pengembangan usaha budidaya rumput laut. Berdasarkan hasil penelitian diketahui bahwa karakteristik pembudidaya rumput laut yang ada di Pantai Kutuh adalah (1) umur pembudidaya masih tegolong produktif, (2) sebagian besar tingkat pendidikan pembudidaya adalah lulusan SMA, (3) pekerjaan utama pembudidaya ada budidaya rumput laut jenis Halymenia sp. dan pekerjaan sampingan pembudidaya adalah beternak sapi, nelayan, pemandu wisata dan buruh proyek. Berdasarkan data hasil penelitian, diketahui bahwa pertumbuhan dan kualitas air budidaya rumput laut jenis Halymenia sp. tergolong baik, namun pengembangan usaha budidaya rumput laut jenis Halymenia sp. mengalami kendala dalam hal pemasaran rumput laut kering hasil budidaya.

Variasi Morfologi dan Kelimpahan Kepiting Uca spp. di Kawasan Mangrove, Tuban-Bali Yuli Krisnawati; I Wayan Arthana; Ayu Putu Wiweka Krisna Dewi
Journal of Marine and Aquatic Sciences Vol 4 No 2 (2018)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Fiddler crabs (Uca spp.) are one of the mangrove fauna that has an important role of food chain within the scope of mangrove, which is as a deposit eater. The mangrove area in Kampoeng Kepiting has been damaged due to reclamation for Bali Mandara toll road construction, which can interfere the survival/existence of Fiddler crabs. Therefore, it is necessary to do a research concerning the abundance of Fiddler Crabs in Kampoeng Kepiting mangrove area. The aim of this study is to determine the type and abundance of Fiddler crabs and to discover the coherency among Fiddler Crabs abundance in the manner of c-organic matter content in Kampoeng Kepiting area. Fiddler crabs samples were carried out using 1×1 meter quadrant transect by digging as deep as 30 cm. The abundance of Fiddler crabs was analyzed under the Krebs equation. The results from this study indicate Fiddler crabs were found in Kampoeng Kepiting area ,i.e. Uca demani, Uca coarctata, Uca dussumieri, Uca bellator, Uca lactea perplexa, Uca tetragonon, Uca chlorophthalmus crassipes, Uca lactea annulipes, Uca triangularis, and Uca vocans. The highest Fiddler crabs abundance were found at station 4 which is 72±4,2 ind/m2, whilst the abundance of Fiddler crabs (Uca spp.) at station 5 is (33±1,2 ind/m2). The c-organic matter content has a strong relationship with the abundance of Fiddler crabs in Kampoeng Kepiting mangrove area (r = 0,91). This study shows that mangrove conditions in Kampoeng Kepiting are still able to support Fiddler Crabs (Uca spp.) existence.

Pengaruh Nitrat (NO3) Terhadap Pertumbuhan Alami Eceng Gondok (Eichornia crassipes Solms.) Berdasarkan Biomassa Basah Di Danau Batur, Kintamani, Bali Lisa Rosalia Prayuda; I Wayan Arthana; Ayu Putu Wiweka Krisna Dewi
Journal of Marine and Aquatic Sciences Vol 3 No 2 (2017)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Batur Lake is one of the natural lakes in the province of Bali where the activity of fishing, agriculture, tourism and housing available. This study aims to determine the effect of nitrate relation to the natural growth of the water hyacinth (Eichornia crassipes). Increased water hyacinth biomass in Songan station is the highest among the three other stations (Batur, Buahan, and Trunyan). At the end of the study (day 42 ), water hyacinth biomass of Songan station increased by 338.2 % from the initial weight, while at another station the increase weight ranges from 75 % -158 %. The highest daily growth rate in Trunyan station 3.68% / day, and the lowest in station Buahan which only reached 0.88% / day. At the Songan station where are many floating net which contribute to increase nitrate. There is a tendency of growth of water hyacinth faster at higher nitrate conditions. Nitrate conditions ranged from 0,35 to 0,62 m /l which shows that the waters of Batur Lake classified into waters that have a high fertility rate (eutrophic).

Potensi Budidaya Rumput Laut dalam Kaitannya dengan Dampak Perkembangan Pariwisata di Perairan Pantai Kutuh, Badung, Bali Ayu Putu Wiweka Krisna Dewi; Rani Ekawaty
Journal of Marine and Aquatic Sciences Vol 5 No 1 (2019)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Seaweed culture is one of the main marine and fishery commodities which mostly still occupied by coastal community in Badung regency. One of the center areas for seaweed culture development is at Kutuh Beach in Kutuh Village South Kuta District, Badung regency . Kutuh Beach also known as Pandawa Beach that have developed become a tourism area. The development of Kutuh beach as tourism area affect the development of existing seaweed culture activities. Therefore, a study have been done to get scientific information related to the development of seaweed culture in Kutuh coastal water. This research was conducted at in September-October 2016. The data was collected by carrying out measurements directly on the location of seaweed culture of Eucheuma cottonii at Kutuh coastal water. The data collected in this study including the growth of seaweed Eucheuma cottonii and the quality of Kutuh coastal waters, such us nitrat, phosphate, temperature, salinity, pH, and dissolved oxygen (DO). Our study showed that that the quality of Kutuh Pantai waters is still in good condition for the growth of seaweed except Phosphor that can inhibit the growth of seaweed. Instead of phosphor, seaweed can not grow well in the waters of Kutuh Beach because it is eaten by predators and low intensity of sunlight.

Keanekaragaman dan Kerapatan Rumput Laut Alami Perairan Pulau Serangan Denpasar Bali Ni Desak Putu Dita Herlinawati; I Wayan Arthana; Ayu Putu Wiweka Krisna Dewi
Journal of Marine and Aquatic Sciences Vol 4 No 1 (2018)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Serangan Island was a costal area located in the Serangan village, South Denpasar district, near with Sanur and Nusa Dua tourism area. Serangan beach has a biodiversity such as natural macroalgae. This study was conducted in January 2017 at the seaweed cultivation area with the aims of research were to know the variety and density of macroalgae. The method used was a 1x1 m quadrat transect. Sampling was carried out during low tide. Macroalgae found in the area, consist of 12 species namely Ulva lactuca, Chaetomorpha linum. Chaetomorpha aera, Padina australis, Sargassum fluitans, Turbinaria ornate, Gelidium sp., Hypnea cornuta, Hypnea spicifera, Gracilaria salicornia, Acanthophora spicifera, Halimeda opuntia. Those species were belonging to 3 divisi namely Chlorophyta, Phaeophyta, Rhodophyta. The highest density of macroalgae was Padina australis while the lowest density was Chaetomorpha linum. Type of dominated macroalgae was from a group of Phaeophyta (brown algae) with highest dominance from the species of Padina australis. Water quality namely acidity (pH) was in the range of 7.54 to 7.75, salinity of 31.33-32.00 ppt, the water temperature was 26.50-27.30? C, which all was categorized as the optimal parameters for the growth of macroalgae. Assosiation of biota found were 9 species namely fish of larva, Cypraea lynx (Molusca), Emerita sp., Halodule sp., Synapta maculate, Enhalus acoroides, Cymodocea serrulata, Hermit crab, Ophiuroidea sp. The conditions coastal waters substrate was varied from white sand stone type to stony type by coral pieces.

Pola Pertumbuhan Rumput Laut Yang Menggunakan Kantong Dan Tanpa Kantong Di Perairan Pantai Kutuh, Badung, Bali Ayu Putu Wiweka Krisna Dewi; Endang Wulandari Suryaningtyas
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.p18

Seaweed farmers on Kutuh Beach experienced problems in seaweed cultivation activities, namely that seaweed cannot grow well. This is due to the large number of predators that ate seaweed in the cultivated area. One method that can be used to overcome this problem was using bags in seaweed cultivation. The purpose of the research that was carried out in July-October 2018 was to determine the effect of using bags on seaweed cultivation in Kutuh Beach waters. The method used in this research was experimental using two treatments (planting seaweed using bags and without bags) and three replications. Water quality parameters measured as supporting data ware DO, pH, salinity, temperature, nitrate, and phosphate. The result of this study was the growth of seaweed cultivated using bags is better than the growth of seaweed cultivated without bags.

Panjang Karapas dan Laju Pertumbuhan Spesifik Kepiting Bakau (Scylla serrata) yang diberi Jenis Pakan Berbeda di Area Ekowisata Kampung Kepiting, Bali Ni Desak Putu Ida Suryani; Pande Gde Sasmita Julyantoro; Ayu Putu Wiweka Krisna Dewi
Journal of Marine and Aquatic Sciences Vol 4 No 1 (2018)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Mangrove forest is tropical coastal vegetation that grow on muddy and sandy soils which affected by sea tides. One of important commercial species that live in mangrove ecosystem is the mud crab (Scylla serrata). Feed and water quality have been considered as critical components for supporting the growth both of weight and carapace length of this species. This study was conducted from January to February 2017 in the area of ??Ecotourism Kampung Kepiting, Bali. The influence of different natural feed such as Jerbung shrimp (Penaeus merguiensis), Mollusca, lemuru fish (Sardinella lemuru) and sea worms (Nereis sp.) on the growth performance of the mud crab were investigated. Water quality parameter data such as pH, DO, temperature, salinity and ammonium were also collected. The obtained data were analyzed by using variance analysis of Statistical Product and Service Solutions (SPSS) version 21. The result showed that the use of different types of feed have no effect on the length of carapace, but it has significantly influence on the specific growth rate of mud crab. Finally, different types of the given feeding were still resulted in the save range of water quality parameters for mud crab culture.

Pertumbuhan rumput laut (Eucheuma cottonii) dengan berat bibit awal berbeda di Pantai Pandawa, Bali Ni Pande Putu Suji Dian Antari; Ni Luh Watiniasih; Ayu Putu Wiweka Krisna Dewi
Jurnal Biologi Udayana Vol 25 No 2 (2021): JURNAL BIOLOGI UDAYANA
Publisher : Program Studi Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBIOUNUD.2021.v25.i02.p03

Seaweed is a low-level plant, does not have exact roots, stems, and leaves, and the plant part is called the thallus. One species that is often cultivated by the seaweed farmers in Bali is Eucheuma cottonii. The initial weight of the seeds planted can affect the growth of seaweed. The results of the study found that good seaweed seeds used ranged from 50-150 g, but has never been studied in detail on E. cottonii using floating raft method. This study aims to determine the initial weight of seaweed seeds that are good for growth using the floating raft method where the seeds are placed in a bag. This study consisted of 3 treatments, namely treatment A with a seed weight of 50 g, treatment B with a seed weight of 100 g, and treatment C with a seed weight of 150 g. This research was conducted at Pandawa Beach, Bali, from March-April 2021, which data was collected once a week for 7 weeks. The results showed that the growth of seaweed increased every week and different between treatments. The final weight of seaweed in treatment A was 558.83 g, treatment B was 552.167 g, and treatment C was 529.67 g. Seaweed growth in treatment A was higher than treatment B and C. The average Specific Growth Rate (SGR) in treatment A was 4.92%, treatment B was 3.48%, and treatment C was 2.57%. The best results from the seeds used were found in seedlings with an initial weight of 50g, compared to the weight of other seeds (P<0.002).

Pengaruh Pemberian Pakan Berbeda Pada Laju Pertumbuhan Ikan Lele Dumbo (Clarias gariepinus) I Putu Eka Mahendra; I Wayan Arthana; Ayu Putu Wiweka Krisna Dewi
Bumi Lestari Journal of Environment Vol 22 No 1 (2022)
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/blje.2022.v22.i01.p02

Aquaculture is one of the efforts made to increase fishery production at present and in the future. One type of freshwater aquaculture that is a leading commodity and is widely cultivated by the community is catfish. Different feeding effect on the growth of African catfish fry. This study used 3 different treatments, A feeding 100% silk worms, B feeding 100% maggot and the last C feeding 50% silk worms and 50% maggot.This study aims to determine the specific growth rate, feed conversion ratio (FCR) and Survival rate (SR) in catfish fry fed different feeds of silk worms and BSF maggots Based on the results of research for 30 days from March 2021 - April 2021, the specific growth rate got the highest results, namely in treatment A, namely feeding 100% silk worms and the lowest was in feeding treatment with 100% maggot BSF. According to the treatment given, the results of the growth rate obtained were treatment A of 4.52%, treatment B of 4.13%, treatment C of 4.39%. The lowest FCR results were found in the feeding of 100% silk worms and the highest in the treatment of feeding 100%. The results of the Feeding Conversion Ratio (FCR) or the feed conversion ratio obtained were treatment A which was 1.12, treatment B was 1.68, treatment C of 1.18. In the SR parameter, the highest results were obtained in treatment A, namely feeding 100% silk worms and the lowest in treatment B, namely feeding 100% maggot BSF. The results of the survival rate in this study were 79% in treatment A, treatment B 75%, treatment C 70%.

ANALYSIS OF WATER CARRYING CAPACITY BASED ON WATER QUALITY TO THE OPPORTUNITIES CULTIVATION ABALONE (Haliotis sp.) IN COASTAL KUTUH, BALI Dewa Ayu Angga Pebriani; Ayu Putu Wiweka Krisna Dewi
Samakia : Jurnal Ilmu Perikanan Vol 7 No 2 (2016): Samakia: Jurnal Ilmu Perikanan
Publisher : Faculty of Science and Technology University Ibrahimy

The aim of this study was to determine the status of water quality that can be known whether or not the region's coastals Kutuh used as a location for the abalone aquaculture. This research was conducted in Kutuh coastal, Kutuh Village, District of South Kuta, Badung regency in August-September 2016. Data collection is done by carrying out measurements directly on the study site is in Kutuh coastal. Data of water quality was obtained from this research includes temperature, DO, pH, currents, salinity, ammonia and nitrite. The data were then analyzed using a quantitative descriptive excel program for windows. The range of water quality values measured show that the temperature, pH, salinity, and DO is still in the normal threshold. Values obtained ammonia and nitrite are very low and still within the normal threshold. Based on the results obtained, the water quality in the coastals Kutuh in good condition and can be used as a life medium for the abalone aquaculture.

Co-Authors Akbar Akbar Annisa Nur Safitri Utomo Arliza Cynthia Razali Devita Eka Saputri Dewa Adi Putra Dewa Ayu Angga Pebriani Endang Wulandari Suryaningtyas Gede Pasek Sutedja Gusti Ayu Manik Pradnyani I Putu Eka Mahendra I Wayan Arthana Ifan Martin Nopem Ima Yudha Perwira Juan Aldo Jaya Pradipta Sitepu Lisa Rosalia Prayuda Made Tri Loka Ni Desak Putu Dita Herlinawati Ni Desak Putu Ida Suryani Ni Luh Watiniasih Ni Pande Putu Suji Dian Antari Ni Putu Putri Wijayanti Ni Putu Sintha Maharani Nyoman Dati Pertami Octria Vesensia Pande Gde Sasmita Julyantoro Putri Febrine Nainggolan Putu Tegar Wiguna Putra Rani Ekawaty Resti Ayu NengTias Suprabadevi Ayumayasari Saraswati Yesi Breanita Yuli Krisnawati Yuni Debora Prasicilia Sitorus

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