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Current Trends in Aquatic Science
Published by Universitas Udayana
ISSN : 26217368     EISSN : 26217473     DOI : -
Core Subject : Education,
Other
Arjuna Subject : -
Articles 15 Documents
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Search results for , issue "Vol 3 No 2 (2020)" : 15 Documents clear
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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Abstract

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.
Pertumbuhan Rumput Laut (Eucheuma cottoni) Menggunakan Metode Penanaman Berbeda Dengan Sistem Kantong Di Perairan Pantai Pandawa, Badung, Bali Akbar Akbar; Ni Luh Watiniasih; Ayu Putu Wiweka Krisna Dewi
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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Abstract

This study aims to determine the level of effectiveness and efficiency of seaweed growth grown in bags with different methods. This research was conducted in the village of Kutuh in the waters of Pandawa Beach in December 2019 to January 2020, by taking data once a week for 6 weeks. This research is experimental using Completely Randomized Design (CRD) which consists of two different treatments namely A (Apart in a bag) and B (Bound in a bag). The results showed that the growth pattern of seaweed in treatments A and B was almost the same. Treatment A added weight of seaweed in the 6th week reached 638,444 grams and treatment B reached 637,333 grams. Specific Growth (SGR) Treatment A was 4,409% while treatment B was 4,413%. The results of interview of 10 respondents who were interviewed 70% of farmers prefer to remain a seaweed cultivator and another 30% choose to switch professions as a provider of tourism services. Of the 70% percentage can be said that 100% of farmers prefer Treatment A as a method that can be applied. The measurement of water quality during the study were temperature range between 28,5 - 33 0C, depth ranged from 0,47 – 1,5 m, pH ranged from 7-7.7, salinity ranged from 26,3 - 34 ppt, DO ranged from 5,1 – 7,9 mg / l, nitral ranged between 1,87 – 2,04 mg / l, phosphate ranges from 0,25 – 0,33 mg / l. The value of water quality is still in the optimal range for seaweed growth.
Analisis Kesesuaian dan Daya Dukung Ekowisata Kategori Wisata Pantai di Pantai Pulau Merah Banyuwangi Fuad Hasin Ahmad; I Wayan Restu; Ni Putu Putri Wijayanti
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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Abstract

The study aimed to determine the tourism suitability index and carrying capacity of Red Island Beach. The study was carried out using descriptive method. The study used purposive sampling to determine the tourism suitability index, while the data used for determination of tourism carying capacity was collected directly using QGIS software. The data was colledted from 3 stations along the Red Island Beach, and the distance of each station was 1000 m. The distance of sampling from the beach was 10 m, and performed in triplicate. Parameters measured in this study were: water depth, beach type, beach width, substrate type, water current, slope, water sharpness, land cover, dangerous biota, and freshwater availability. The results showed that the value of the tourism suitability index from 3 stations was categorized into S1 (Very Suitable) (IKW> 80%). The result indicates that the beach of Red Island Banyuwangi can support the development of recreational beach activities. As for the value of the support of the area divided into 2 categories, for the tourism category of recreational beaches obtained the value of carrying capacity of 1,500 people/day, swimming category obtained the value of the support of 240 people/day. It could be concluded that carrying capacity of Red Island Beach is categorized as under carrying capacity. The visitor should be increased up to 36% to reach a balance tourism visit.
Analysis Kesesuaian Pengembangan Wisata Bahari Berkelanjutan di Pantai Jemeluk, Amed, Kabupaten Karangasem, Bali Juliyah Emka; I Wayan Restu; Suprabadevi Ayumayasari Saraswati
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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Abstract

The diversity of biodiversity in Jemeluk Beach did not guarantee that all marine tourism activities on Jemeluk Beach was not have damage or negative impact on the environment. This research was conducted to determine how the suitability of marine tourism conditions (snorkeling, diving, and beach recreation) in an effort to preserve sustainable marine tourism. This research used the analysis of tourism suitability by comparing the characteristics and quality of land against land use requirements for certain tourism activities. The method of measuring coral cover used the LIT (Line Intercept Transect) method which is based on the form of coral growth. Measurement of the type and number of reef fishes was assessed using the UVC (Underwater Visual Cencus) method by taking data along 50 meters at the same depth as the coral cover data collection. The suitability condition of snorkeling tourism at points I and II was classified as quite appropriate with a value of 78% and 72.23%, while point III was classified as conditionally appropriate with a value of 46.3%. The suitability of diving tourism at points I and II were classified as conditional according to the values of 44.5% and 38.2%, while point III was classified as incompatible with the value of 33.34%. While the results of the calculation of the suitability of the beach tourism index showed a very suitable category with a value of 90% to be used as an object of marine tourism development.
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

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Abstract

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.

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