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All Journal Journal of Marine and Aquatic Sciences Buletin Udayana Mengabdi Jurnal Bakti Saraswati Jurnal Pengelolaan Perikanan Tropis (Journal Of Tropical Fisheries Management) Current Trends in Aquatic Science Journal of Marine Research and Technology Samakia: Jurnal Ilmu Perikanan TRITON : Jurnal Manajemen Sumberdaya Perairan Advances in Tropical Biodiversity and Environmental Sciences PAPALELE : Jurnal Penelitian Sosial Ekonomi Perikanan dan Kelautan Ulil Albab

I Ketut Wija Negara

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

Author-ID : 3754908

Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Environmental Science Immunology & microbiology Social Sciences Veterinary Other

Published : 28 Documents Claim Missing Document

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Tingkat Kematangan Gonad dan Fekunditas Abalon (Haliotis squamata) Dewa Ayu Angga Pebriani; I Ketut Wija Negara
Current Trends in Aquatic Science Vol 2 No 2 (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 (524.203 KB)

This study aimed to find out the relationship between the maturity level of female abalone gonads with fecundity and egg diameter size of abalone. The results obtained showed that abalone having gonadal maturity level 1 was in the range of 3-4.5cm; gonadal maturity level 2 in the range size of 4.6-6 cm; and gonadal maturity level 3 in the size range> 6 cm. The results of the abalone gonad histology test showed that abalone with gonadal maturity level 1 had more ootid distribution than the primary oocyte. gonadal maturity level 2 has more ootid distribution, primary oocytes than secondary oocytes. Whereas in gonadal maturity level 3 it appears that secondary oocytes dominate which means the gonads are mature and ready to be spawned. The oocyte diameter is getting bigger and more similar simultaneously with an increasing level of gonad maturity. Abalone with gonadal maturity level 1 has an average oocyte diameter of 187 ?m gonadal maturity level 2 of 190 ?m, and gonadal maturity level 3 of 217 ?m.Abalone fecundity for gonadal maturity level 1 ranged from 60,480-86,190 oocytes; TKG 2 ranges from 196,560-214,520 oocyte grains; and TKG 3 ranges from 483,600-518,880 oocyte grains. Based on the results obtained, it can be concluded that the higher the level of maturity of the abalone gonad, the greater the fecundity with the distribution of more secondary oocytes seen in the results of the gonad abalone histology test.

Analisa Kelayakan Usaha Purse Seine pada KM Bintang Bahagia 6 di Pelabuhan Umum Benoa, Provinsi bali Maria Angelina Vicario Tonga; I Wayan Restu; I Ketut Wija Negara
Current Trends in Aquatic Science Vol 3 No 2 (2020)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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This study objectives is to determine how the condition of the purse seine fishery business and also to determine the feasibility of the purse seine fisheries business in Benoa Public Port. In this study the method used is descriptive quantitative method. The data analysis method used is by calculating income, depreciation, and business profits, then to find out the business feasibility calculated the value of the payback period, B / C ratio, break event point. The primary data taken is data belonging to KM Bintang Bahagia 6 which is in the form of fish catch data per trip for 1 year, investment costs, fixed costs and variable costs, while secondary data is taken from the literature as well as data from the Directorate General of Marine Resources and Fisheries in the form of data on the number of purse seine fleets and the number of catches of purse seine vessels in Benoa Public Port. The condition of the fisheries business with purse seine fishing equipment in Benoa Public Port can be categorized as still quite good. This can be seen from the large number of operating fleets and the catches obtained are still relatively stable. The value of the payback period obtained is 1.1, B / C ratio 1.6, and BEP units of 99,433 kg and BEP sales of Rp 2,165,557,791. With this analysis, it can be stated that purse seine fisheries are feasible.

Analisa Kualitas Air di Sungai Pelus, Purbalingga, Jawa Tengah Rizki Andrianto; Ima Yudha Perwira; I Ketut Wija Negara
Current Trends in Aquatic Science Vol 4 No 1 (2021)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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The purpose of this study was to determine the level of water quality in the Pelus River, Purbalingga Regency, Central Java. Water sampling is carried out in the upstream, middle and downstream sections, from June 2019 to July 2019. The water sample was then analyzed for the content of water quality parameters including COD and BOT measured using permanganate-based Titrimetry method, DO is measured using the Winkler method, TSS is measured using the Gravimetric method, then the TDS is measured using a TDS meter, Turbidity is measured using a Turbidity meter, then Nitrate and Phosphate are measured using the Spectrophotometry meth od, and water pH is measured using a pH meter. The results showed an increase in the value of water quality temporally and spatially ie (COD 28-43 mg/L, BOT 8.4-11.3 mg/L, DO 7.3-5.7 mg/L, TSS 32-65 mg/L, TDS 98-168 mg/L, Turbidity 7.2-12.7 NTU, Nitrate 0.8-1.4 mg/L, Phosphate 0.3-0.5 mg/L and pH 6.8-6.6). Temporal and spatial increase in the value of water quality, allegedly due to rainfall and high atropogenic activity in the Pelus River. Keywords: Pelus River; water quality; pollution; Purbalingga

Penambahan Tepung Udang Rebon (Krill Meal) Untuk Meningkatkan Pertumbuhan Ikan Maskoki (Carassius auratus). Abrar Ravidhia; Pande Gde Sasmita Julyantoro; I Ketut Wija Negara; Sukarman Sukarman
Current Trends in Aquatic Science Vol 2 No 1 (2019)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Penelitian ini bertujuan untuk mengetahui pengaruh penambahan tepung udang rebon (krill meal) untuk peningkatan pertumbuhan Ikan Maskoki (Carassius auratus). Penelitian yang dilakukan bersifat eksperimental menggunakan Rancangan Acak Lengkap (RAL) dengan 5 perlakuan dan 3 kali ulangan. Perlakuan S0 (kontrol) dilakukan dengan tanpa penambahan tepung udang rebon, sedangkan perlakuan S1, S2, S3, dan S4 masing-masing dilakukan dengan penambahan 5%, 10%, 15%, dan 20% tepung udang rebon (krill meal). Perlakuan dilakukan dengan menambahkan tepung udang rebon (krill meal) pada pembuatan pakan sesuai dengan dosis tiap perlakuan. Pemberian pakan dilakukan 3 kali sehari selama 42 hari pengamatan di Balai Riset Budidaya Ikan Hias Depok. Pengamatan parameter pertumbuhan dilakukan pada awal dan akhir penelitian berupa parameter berat (W mutlak), laju pertumbuhan spesifik, panjang standar (L mutlak), dan efisiensi pemanfaatan. Hasil uji statistik (one way ANOVA) menunjukkan bahwa penggunaan tepung udang rebon (krill meal) berpengaruh nyata terhadap peningkatan pertumbuhan (p<0,05) Ikan Maskoki. Pertumbuhan optimum terdapat pada perlakuan 15% penambahan tepung udang rebon (krill meal) dengan perubahan parameter berat (W mutlak) sebesar 0,58 g, laju pertumbuhan spesifik sebesar 0,44%/hari, panjang standar (L mutlak) sebesar 0,45 cm, dan efisiensi pemanfaatan pakan sebesar 18,37%. Hal ini mengindikasikan bahwa penambahan tepung udang rebon (krill meal) mampu meningkatkan pertumbuhan Ikan Maskoki (Carassius auratus).

Analisis Efisiensi Saluran Pemasaran Ikan Teri (Stolephorus sp.) di Desa Sanggalangit, Kabupaten Buleleng Lingga Nurmalasari; I Wayan Restu; I Ketut Wija Negara; I Wayan Sudana
Current Trends in Aquatic Science Vol 4 No 1 (2021)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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The location for the research is decide in Sanggalangit Village, Gerokgak District, Buleleng Regency, Bali. The highest production species in the coast of Sanggalangit Village, Buleleng Regency is Anchovy. The village is chosen because there are a lot of fisherman whos active to catch and do the Anchovy’s marketing. The aim of this research is to know the condition of marketing channels and analysis the marketing channels efficiency of Anchovy in Sanggalangit Village. This research is held on December 2019 until January 2020 with qualitative and quantitative methods by observation and interviews. Interviewed with the fisherman, the institution of marketing such as the collecting trader and the retailer. The share margin analysis and farmer’s share as a tool to know the marketing channels efficiency. The marketing channels that occurs in Sanggalangit Village is from the fisherman, to the collecting trader and then to the retailer, until to the customer’s hand. The share margin from this Anchovy’s marketing channels is obtained Rp. 13.000/kg where the margin from the fisherman with the collecting trader is Rp. 3.800 and the margin from the collecting trader with the retailer is obtained Rp. 9.200/kg. The amount of farmer’s share is 56,67 %. The marketing efficiency value is 15,18 %, which is mean the marketing channels efficiency of Anchovy in Sanggalangit Village is efficient.

Strategy for Improving Kesyahbandaran Operational Performance at Nusantara Fisheries Port (PPN) Pengambengan, Bali : Strategi Peningkatan Kinerja Operasional Kesyahbandaran di Pelabuhan Perikanan Nusantara (PPN) Pengambengan, Bali Wisnu Kawirian; I Wayan Restu; I Ketut Wija Negara; Abdul Razak
Tropical Fisheries Management Journal Vol 4 No 2 (2020): Jurnal Pengelolaan Perikanan Tropis
Publisher : Departement of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jppt.v4i2.33381

As the Technical Implementation Unit of the Directorate General of Capture Fisheries, PPN Pengambengan has one of the tasks in terms of security and safety of fishing vessels. In this case, the one who has the duty and authority is Syahbandar at the fishing port. The purpose of this research are to determine the SOP (Standard Operating Procedure) of the Kesyahbandaran section and conducted an analysis of improving the operational performance of the Kesyahbandaran in PPN Pengambengan. This research was conducted in March 2020, used the methods of qualitative and quantitative descriptive, and the data analysis used SWOT analysis. The results of this research were 16 main tasks and functions of the Kesyahbandaran on the operational, 11 are already running and 5 are not yet running. From the results of the SWOT analysis showed the strategy that can be applied in the Kesyahbandaran of PPN Pengambengan is a WO strategy that is to minimize weaknesses and take advantage of opportunities. The strategy includes the development of new land in the PPN Pengambengan, the procurement of watchtowers and the installation of CCTV in the port area, in collaboration with relevant agencies regarding to the operation and maintenance of ship docking, and dredging of the mooring pond.

Characteristics of Beach Typology for the Development of Marine Tourism in the Blue Lagoon Beach of Karangasem Bali Suprabadevi Ayumayasari Saraswati; I Ketut Wija Negara; Dewa Ayu Angga Pebriani
Advances in Tropical Biodiversity and Environmental Sciences Vol 4 No 2 (2020): ATBES
Publisher : Institute for Research and Community Services Udayana University

Sygnathidae corals are included in the vurnarable category of CITES because the number in their natural habitat is decreasing. This is partly due to the high predatory activity and utilization as raw materials for traditional medicine so that it has high economic value. This research aims to study the ecological conditions including the distribution and abundance of Sygnathidae reef fish in the waters of Blue Lagoon Karangasem and to study the ecological conditions of the waters. The main marine tourism and recreation activities at Blue Lagoon Beach Karangasem, Bali are now snorkeling tours. This requires attention to the preservation of coastal ecosystems, because tourism is an industry that is very sensitive to external changes, so the region is of concern. Besides studies on marine tourism activities, scientific studies on tourism carrying capacity are also needed to determine the maximum number of tourist visitors that can still be tolerated by an ecotourism area. This research was conducted in the Blue Lagoon Coast Karangasem Bali. This study uses primary data analysis of water quality analysis, the method of determining the suitability of the region based on the multiplication of scores and weights obtained from each water brightness parameter category S1 with a score of 15, coral community cover category S3 with a score of 5, coral life form category S1 with a score of 9 , reef fish category TS with a score of 0, current speed category S2 with a score of 2, and depth of the category S3 with a score of 1. This study was conducted for 3 months, namely in June-August. The determination of the research station is based on the Purposive sampling technique. Secondary socioeconomic data obtained by questionnaire, interview / interview. The purpose of this study is to examine the suitability of the area as a marine tourism activity and analyze the carrying capacity (carrying capacity) of marine tourism areas.

Development Strategy to Improve Class Classification In Nusantara Fishery Port Pengambengan, Bali Province I Gede Suyoga; I Wayan Restu; I Ketut Wija Negara; Bagus Sudananjaya
Advances in Tropical Biodiversity and Environmental Sciences Vol 5 No 3 (2021): ATBES
Publisher : Institute for Research and Community Services Udayana University

In the framework of improving governance, functional dimensions, and performance of the fishing port, the Nusantara Fishery Port in Jembrana Bali compiles a "strategic plan" to improve the class classification of the Nusantara Fishing Port Pengambengan to become a class A Ocean Fishing Port, a number of management facility criteria are required as the main prerequisites. The purpose of this study was to determine the condition of the facilities at Nusantara Fishing Port Pengambengan and to determine the strategy for developing a fishing port at Nusantara Fishing Port Pengambengan. This research method uses descriptive qualitative and quantitative methods. Data collection techniques through direct observation and interviews using a questionnaire regarding the condition of the facilities at Nusantara Fishing Port Pengambengan, then data analysis using a SWOT analysis approach. Nusantara Pengambengan Fishery Port is a class B port that functions as a support for the management and utilization of fish resources and the environment, starting from pre-production, production, processing and marketing of fishery products. In supporting fishery activities, Nusantara Fishing Port Pengambengan is currently supported by various facilities, namely basic facilities, functional facilities, and supporting facilities. The results showed that there were several facilities in poor conditions, namely basic pier facilities, anchoring ponds, complex roads, and drainage, from supporting facilities, namely public toilets and guest houses. Several facilities are not available in the Nusantara Fishing Port Pengambengan construction, namely ship docks, net repair wards/places, laboratories, WWTPs, watchtowers, and perimeter fences. The strategies obtained from the results of this study include: (1) Improving the quality of the catch to provide a positive image for potential investors. (2) Improve administrative services to provide fishermen comfort when carrying out fishing operations. (3) Support is needed, especially the role of the government related to management and development.

The Effects of Shrimp Pond Waste on Water Quality of Patas Village as A Center Of Seaweed (Eucheuma spinosum) Cultivation I Ketut Wija Negara; Suprabadevi Ayumayasari Saraswati; Ni Putu Putri Wijayanti
Advances in Tropical Biodiversity and Environmental Sciences Vol 2 No 1 (2018): ATBES
Publisher : Institute for Research and Community Services Udayana University

The intensive farming of vannamei shrimp in Patas village release waste that affected the water quality for seaweed cultivation. The aims of this study were to investigate the effects of shrimp pond waste to water quality and growth of seaweed Eucheuma spinosum in Patas village. The research located in Patas village, Gerokgak district, Buleleng regency, Bali province, during the plantation cycle (45 days) from July to September 2017. The collected data consist of total N, total P, Nitrate (NO3-), Ammonium (NH4+), and Phosphat (PO43-). The results showed the average weight of seaweed near the shrimp ponds was 5.85% g with 0.15% g increment, while at the far location from shrimp ponds was 7.05% g with 0.41% g increment. Its indicated that the Eucheuma spinosum cultivated in far location has a better yield than the near location from shrimp ponds. The Chlorine content in shrimp pond waste affecting the seaweed growth and water quality, such as salinity, pH, DO, Nitrate, and Phosphat.

Marketing Channels Efficiency Analysis of Scad (Decapterus sp.) Catches of Traditional Fishermen in Pengambengan Village Jembrana, Bali Dita Dwi Ayu Isukadana; I Wayan Restu; I Ketut Wija Negara
Advances in Tropical Biodiversity and Environmental Sciences Vol 5 No 1 (2021): ATBES
Publisher : Institute for Research and Community Services Udayana University

Efficient marketing is characterized by low marketing margins and high farmer's share. This research was conducted to determine the condition and level of efficiency marketing channels Scad in Pengambengan Village during February-March 2020. The method used was descriptive qualitative method and quantitative descriptive by observation and interviews. Interviews were conducted with fishermen, collectors, wholesalers and retailers. The Marketing margin analysis and farmer's share were used to determine level of efficiency marketing channel. The results of the analysis show that there were two patterns of marketing channels for Scadthat were caught by traditional fishermen in Pengambengan Village. Marketing channel pattern I was a two-level channel pattern, while marketing channel pattern II was a three-level channel pattern. The marketing margin value in the two-level channel pattern was Rp5.700/kg with a farmer's share of 71%. The marketing margin value in the three-level channel pattern was Rp9.700/kg with a farmer's share of 59%. The marketing efficiency value obtained in two-level marketing channel pattern was 6%, while in three-level channel marketing pattern the marketing efficiency value was 8%. Based on the values obtained, the marketing efficiency of two-level channel pattern was as efficient as the three-level channel pattern. Thus, the marketing of Scad that were caught by traditional fishermen in Pengambengan Village was classified as efficient marketing.

Co-Authors A.A. Ketut Agung Cahyawan W Abdul Razak Abrar Ravidhia Ade Ruly Sumartini Andi Mannojengi Anesa Ronavia Bagus Sudananjaya Bagus Sudananjaya Bon, Veronika Tiadora Dewa Ayu Angga Pebriani Dhananjaya, I Gusti Ngurah Agung Diah Ayu Safitri Diah Ayu Safitri Dita Dwi Ayu Isukadana Endang Wulandari Suryaningtyas Hutagaol, Larasati I Gede Suyoga I Gede Wahyu Surya Wirawan I Gusti Ngurah Putra Dirgayusa I Wayan Gde Yogiswara Darma Putra I Wayan Nuarsa I Wayan Restu Ima Yudha Perwira Indriyani, Ni Made Vita Kadek Adi Chandra Kusuma Kartika, I Wayan Darya Lingga Nurmalasari Maria Angelina Vicario Tonga Marsoedi Marsoedi Mila Jeniarti Naibaho, Trijun Sariwaty Ni Desak Nyoman Pradnyani Ni Kadek Dwi Widyanti Putri Ni Made Putri Handayani Ni Made Vita Indriyani Ni Putu Putri Wijayanti Nyoman Dati Pertami Pande Gde Sasmita Julyantoro Pebriani, Dewa Ayu Angga Putra, I Wayan Gde Yogiswara Darma Riska Purwanto Rizki Andrianto Siahaan, Jonathan M Siti Helis Pipi Hidayana Siti Zubaidah Sukarman Sukarman Sumartini, Ade Ruly Suprabadevi Ayumayasari Saraswati Suprabadevi Ayumayasari Saraswati Suprabadevi Ayumayasari Saraswati Suprabadevi Ayumayasari Saraswati, Suprabadevi Ayumayasari Wijayanti, Ni Putu Putri Wisnu Kawirian

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