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All Journal Journal of Marine and Aquatic Sciences ILMU KELAUTAN: Indonesian Journal of Marine Sciences Jurnal Kajian Bali Journal of Marine Research and Technology
Ni Luh Putu Ria Puspitha
Program Studi Ilmu Kelautan, Fakultas Kelautan Dan Perikanan, Universitas Udayana, Bali, Indonesia
Religion Arts Humanities Earth & Planetary Sciences Languange, Linguistic, Communication & Media Social Sciences

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PEMETAAN LAHAN POTENSIAL BUDIDAYA LAUT IKAN KERAPU BEBEK Cromileptes Altivelis DI DESA PEMUTERAN, KECAMATAN GEROKGAK, KABUPATEN BULELENG, BALI Hendra Yoga Pratama; I Dewa Nyoman Nurweda Putra; Ni Luh Putu Ria Puspitha
Journal of Marine Research and Technology Vol 2 No 2 (2019): AGUSTUS 2019
Publisher : Department of Marine Sciences, Faculty of Marine Science and Fisheries, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (367.123 KB) | DOI: 10.24843/JMRT.2019.v02.i02.p03

Abstract

The potential of aquaculture in Indonesia is very large, especially fish and mollusks. Around 1.052.720 ha total potential sea area for fish cultivation such as snapper, beronang, and grouper. One potential that needs to be developed in the field of fisheries is duck grouper (Cromileptes altivelis). One area in Indonesia especially in Bali, which conducting marine aquaculture using floating net cage system is Pemuteran Village, Gerokgak District, Buleleng Regency, Bali. This study aimed to determine the right information and improve the potential of the tap nets for the activity of duck grouper at Pemuteran Village level can be done with floating net cage system. In this study three stages were carried out, namely interpolation, reclassification, and overlay. Based on the result of overlay of all spatial information, a potential map for the activity of duck grouper cultivation with KJA system is divided into 2 conformity classes, namely: S1 for the appropriate category (very suitable), S2 (quite appropriate category ) and T (for not suitable category). Based on the map in figure (3), it shows that suitable results for agriculture in Pemuteran village indicate that proper resources for aquaculture are in the right system KJA is Very suitable (S1) of 1,67 km2, quite appropriate (S2) of 6,25 km2 and not suitable (T) of 1,31 km2.
Analisis Karakter Morfometrik Ikan Tongkol (Auxis sp) Yang Didaratkan Di Pantai Tianyar, Karangasem Abdi Jana Guna; Ni Luh Watiniasih; Ni Luh Putu Ria Puspitha
Journal of Marine and Aquatic Sciences Vol 7 No 2 (2021)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/jmas.2021.v07.i02.p01

Abstract

Mackerel tuna is favored by many people, with high consumer need at the market, can have an impact not selectively the size of tuna catch. The problem of the size of tuna catch can be known by morphometric research. The research about morphometric mackerel tuna was done at Tianyar Beach, Karangasem, there are two types of mackerel tuna it called is bullet tuna (Auxis rochei) and frigate tuna (Auxis thazard). The difference between bullet tuna and frigate tuna is body shape, body marked, body color. Morphometric characters of bullet tuna and frigate tuna as total length (TL), standard length (PS), fork length (PC), head length (PK), head height (TK), predorsal length (PPD), prepectoral length (PPP), eye diameter (DM), operculum length (PO), maxillary length (PRA), lower jaw length (PRB), height (TB), length of the lower caudal fin (PSEB), length of the upper caudal fin (PSEA) an increase during 30 trips (February - April), the increase in morphometric size of bullet tuna and frigate tuna from Februari until April related by animal growth and evolve. Fork length frequency distribution bullet tuna has a range between 216 – 278 mm, and fork length frequency distribution of frigate tuna has a range between 230 – 299 mm. Length - weight relationship of bullet tuna is W = 0,00002 and frigate tuna is W = 0,00006 , they have the similarity about length growth faster more than weight (allometrik negative). Composition of bullet tuna is 508 and 46 individual of frigate tuna in Tianyar Beach, Karangasem during 30 trip.
Pengaruh Suhu Permukaan Laut terhadap Curah Hujan di Pulau Bali Tahun 2009-2018 Ida Bagus Agung Parahita Adiguna; I Wayan Nuarsa; Ni Luh Putu Ria Puspitha
Journal of Marine and Aquatic Sciences Vol 7 No 2 (2021)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/jmas.2021.v07.i02.p10

Abstract

Change in sea surface temperature (SST) has a huge impact to rainfall intensity. This research analysed the trend of SST all over Bali island for 10 years (from 2009 to 2018) using MODIS satellite level 3, covered 7.8958oSouth -8.8958oSouth and 114.4791oEast - 115.6875oEast. The data for rainfall trend was collected from 12 rain observer stations of BMKG (Indonesian Meteorological, Climatological, and Geophhysical Agency). The statistical correlation between SST and rainfall intensity were analyzed using Microsoft Excel software. The result found that the SST in Bali ranged from 25.4oC until 31.5oC. The change of SST has a similar pattern to the monsoon cycle where the western monsoon is relatively warmer than the eastern monsoon. The rainfall trend in Bali is closely related to the monsoon cycle. During the western monsoon,the average monthly rainfall value in Bali is more than 150 mm, while the rainfall value on the eastern monsoon is slightly different, which is <150 mm. The correlation between SST and rainfall is influenced by the monsoon direction.The correlation between SST and rainfall in the west and transitional season Iis weak with a coefficient correlation value of -0,46 at lag 0, whereas in the east and transitional season II showed a strong correlation coefficient value of 0.94 in lag 0 (in the same month).
Perbandingan Laju Pertumbuhan Abalon (Haliotis squamata) Menggunakan Metode Co-culture Dan Monoculture di Pantai Geger, Nusa Dua, Kabupaten Badung, Bali I Made Subali Arta Arta; I Gusti Ngurah Putra Dirgayusa; Ni Luh Putu Ria Puspitha
Journal of Marine and Aquatic Sciences Vol 7 No 2 (2021)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/jmas.2021.v07.i02.p12

Abstract

Penelitian ini dilakukan di Pantai Geger, Nusa Dua, Bali selama 60 hari. Tujuan penelitian ini adalah Mengetahui perbandingan laju pertumbuhan abalon (Haliotis squamata) dengan sistem budidaya co-culturedan monoculture di perairan Pantai Geger, Nusa Dua, Bali, mengetahui padat tebar abalon yang lebih efektif dilakukan pada sistem co- culture dan mengetahui padat tebar abalon yang lebih efektif dilakukan pada sistem monoculture. Metode yang digunakan menggunakan metode Rancangan Acak Lengkap (RAL) yang terdiri dari empat perlakuan dengan masing-masing perlakuan terdapat sebanyak tiga kali pengulangan. Perlakuan berupa kerang abalon (Haliotis squamata) yang diintegrasikan dengan padat tebar tanam yang berbeda dengan tanam rumput laut yang sama. Hewan uji ditebar setiap keranjang dengan kepadatan 40 ekor dan 20 ekor. Makanan yang diberikan untuk abalone yaitu cotoni sp. yang dimana rumput laut cotoni sp. didapatkan dari hasil budidaya. Berdasarkan perbandingan laju pertumbuhan abalon (Haliotis squamata) pada budidaya co-culture dan monoculture dari segi panjang abalon dengan padat tebar 20 dari sistem budidaya co-culture mendapatkan nilai panjang tertinggi sebesar 2.50%, sedangkan sistem budidaya co-culture dengan padat tebar 40 mendapatkan nilai tertinggi 4.19%. Pada berat abalon Haliotis squamata dengan sistem budidaya co-culture pada padat tebar 20 nilai tertinggi 0.04% dan padat tebar 40 nilai tertinggi pada sistem co-culture sebesar 1.04%. Pada panjang abalon Haliotis squamata dengan sistem monoculture padat tebar 20 mendapatkan nilai yang tertinggi 7.63%, sedangkan padat tebar 40 nilai tertinggi sebesar 1.28%. Pada berat abalon sistem monoculture dengan padat tebar 20 mendapatkan nilai tertinggi sebesar 2.67%, sedangkan padat tebar 40 mendapatkan nilai tertinggi sebesar 0.48%.
Distribusi Spasial Klorofil-A di Perairan Teluk Benoa Bali I Putu Gede Bayu Ade Wianta; Ni Luh Watiniasih; Ni Luh Putu Ria Puspitha
Journal of Marine and Aquatic Sciences Vol 7 No 2 (2021)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/jmas.2021.v07.i02.p09

Abstract

Benoa Bay is an estuary that gets input of waste and nutrients from six rivers and inderectly influenced water productivity in Benoa Bay. The nutrients flow from the river to domestic, industrial, and agricultural activities into Benoa Bay. The amount of nutrient inputs accumulated in Benoa Bay this could affect the chlorophyll-a consentrations. The purpose of this study was to determine the spatial distribution and influence nitrate and phosphate on chlorophyll-a concentration. Water surface sampling carried out on February 2019. The method used was purposive sampling and chlorophyll-a concentration was analysed using spectrophotometer Shimadzu UV-2600, based on the maximum absorption of four wavelengths (quadrichroic). The results showed that the chlorophyll-a concentration ranged from 0.22 - 8.53 g/m3 with an average of 5.58 g/m3. Nitrate concentration ranged from 0,004 - 0,180 mg/L with an average 0,107 mg/L. Phosphate concentration ranged from 0,005 - 0,229 mg/L with an average 0,101 mg/L. Spatial distributions of chlorophyll-a concentration in Benoa Bay higher in the estuary area compare to sea area. The different concentration of chlorophyll-a in Benoa Bay were affected by physical and biological processes. The result of statistic regression of the nitrate and phosphate influence on chlorophyll-a concentration in Benoa Bay was 39,2% (R² = 0.392) for nitrate, meanwile 20,5% (R² = 0.205) for phosphate.
PENGEMBANGAN EKOWISATA DI PULAU PENYU TANJUNG BENOA BALI BERDASARKAN PRINSIP-PRINSIP EKOWISATA I Putu Oka Saduarsa; I Gusti Ngurah Putra Dirgayusa; Ni Luh Putu Ria Puspitha
Journal of Marine and Aquatic Sciences Vol 8 No 1 (2022)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/jmas.2022.v08.i01.p09

Abstract

The existence of sea turtle in its habitat, especially in Bali is endangered. Moon cot sari sea turtle island is a one of tourist destination that carries out conservation of sea turtles. This turtle island provides more education about turtles to the tourists. Turtle island is still in the developing stage to become an ecotourism destination. Ecotourism defines as a tourism that emphasizes the responsibility of preserving nature, providing economic benefits and maintaining cultural integrity for the local community. The development of turtle island as an ecotourism destination could be evaluated from the implementation of the principles of ecotourism such as education, recreation, society walfare, pasticipation of society. The data was collected using interview by closed question questionnaire and the output of this research is a descriptive value. The questionnaire were used to asses if those principles were already applied in turtle island or not. The total of respondents 450 tourists, 15 person staff and 15 person local community. Sampling is carried out for 1.5 months from January to March 2019 every Sunday according to the high season period on that month. The results found that on average 80% of respondents answered that they have gained insight about sea turtles and better understand about sea turtles conservation (principle of education), 75.5% of respondents answered that the turtle island has adequate facilities to give the impression of a pleasant tour (principle of tourism), 100% of staff and stakeholder respondents said the turtle island had a better economic impact (society walfare), 100% of the society respondents said that they participated in preserving the turtle and the environment of the local mangrove forest ( principle of society participation and conservation).
Indeks Kesesuaian Wisata Di Pantai Dolok Oan, Cristo Rei, Dili, Timor Leste Jenisia Barros Soares; I Gusti Ngurah Putra Dirgayusa; Ni Luh Putu Ria Puspitha
Journal of Marine and Aquatic Sciences Vol 8 No 1 (2022)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/jmas.2022.v08.i01.p11

Abstract

East Timor is a country located in the northern continent with an area of 14.874 km². East Timor has a lot of natural resources, one of which is the beach located in Est Timor in the capital city of Dili, located in Cristo Rei area Dolok Oan beach. Dolok Oan beach is a white sand beach that has the sand characteristics, sea water so it is suitable for recreation but has not utilized optimally. Therefore the purpose of this study is to determine the suitability index of tourism on the beach and to identify the limiting factors of the suitability index of tourism in the Dolok Oan coast region. A tourism suitability index (TSI) study was carried out at Dolok Oan beach, Cristo Rei, Dili, Timor - Leste, in January 2019. Pusposive sampling is used as a method for data collection. The dat collected are included: coastal type, beach width, water depth, coastal slope, water base material, water flow, velocity, waters brightness, coastal clousure, harmful biota, and freshwater availability. The analysis of IKW for recreation beach category refers to the matrix of tourism and tourism conformity classification. The limiting factor of IKW in Dolok Oan Beach is coastal land cover and wide beach. IKW value for tourism activities in the beach recreation category at Dolok Oan Beach value of 93,58% are category as suitable (S1). At Dolok Oan beach
Pendugaan CPUE (Catch Per Unit Effort) dan Potensi Maksimum Lestari Ikan Lemuru (Sardinella lemuru) yang Didaratkan di PPN Pengambengan, Jembrana-Bali I Gusti Bagus Ngurah Adywan Surya Bhuwana; IGB. Sila Dharma; Ni Luh Putu Ria Puspitha
Journal of Marine and Aquatic Sciences Vol 8 No 2 (2022)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/jmas.2022.v08.i02.p17

Abstract

Lemuru is one of the highest catches landed in PPN Pengambengan. PPN Pengambengan is a strategic fishery port owned by Jembrana with a function as a center or center for marine fisheries landing. Improvement of fishing technology will be related to the problem of abundance or availability of fishery resoure stocks, so it is necessary to study CPUE, MSY and JTB so that they can utilize the resources with optimal but still maintain its preservation in nature. This research has a purpose, which is to know the tren of CPUE, MSY and JTB of lemuru fish (Sardinella lemuru) landed in PPN Pengambengan. The method used is a quantitative descriptive method using a surplus production analysis from Schaefer. The data used in this study are catch and fleet data from 2014–2019 obtained directly from the PPN Pengambengan office. The results showed the highest CPUE in 2015 amounted to 6,15 tons/fleet, but after that the CPUE tren tended to decline, especially since 2016 while the MSY value was obtained at 9.598,49 tons/year with a maximum sustained effort of 4.545,45 fleets/year. Furthermore, the JTB value is 80% of the MSY value, a figure of 7.678,8tons/year is obtained. This indicates overfishing and over-exploitation in the PPN Pengambengan area. To prevent overfishing and over-exploitation, prevention can be done, such as limiting fishing capacity and effort can also apply fisheries management models, such as co-management and EBFM (eco-based fisheries management).
Analisis Hubungan Nilai Tukar Nelayan Dengan Jenis Tangkapan Nelayan Di Desa Pengambengan, Kecamatan Negara, Kabupaten Jembrana, Bali Ida Bagus Ketut Ravidhya Krisna Sekar; I Gusti Ngurah Putra Dirgayusa; Ni Luh Putu Ria Puspitha
Journal of Marine and Aquatic Sciences Vol 8 No 2 (2022)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/jmas.2022.v08.i02.p18

Abstract

This research aims to determine the fishermen’s exchange rate (NTN) and how the catch composition could affect the income of purse sein fishermen in Pengambengan Village. The object of the research is purse sein fishermen in Pengambengan Village, sampling has carried out by using purposive technique, and data was collected using questionnaires and interviews. The method used in this research are the NTN calculation method and multiple linear regression statistical method with hypothesis test, T-tets, F-test, and the coefficient of determination (adjusted R2 Square). The results show in the harvest season, almost all of the fishermen experienced a surplus (NTN above 100), while in the famine season only fishermen with high profit-sharing system experienced a surplus and the other experienced a disadvantage. For both of the two seasons, the fishermen’s catch composition are consist of lemuru, tongkol and layang; base on the T-test results, lemuru catch affect significantly on fishermen’s income during the harvest season, and layang catch affect the income of fishermen in the famine season. somultaneously the catch composition, lemuru, tongkol and layang affect fishermen income compared only 1 type of fish catch, and seen from the Coefficient of Determination by 6,6 % in the harvest and by 7,5 % in the famine season. The fishermen’s income is also influenced by other variables which are not included. in the model.
Studi Kesesuaian Pantai Jemeluk Sebagai Kawasan Wisata Bahari Kabupaten Karangasem, Provinsi Bali I Gusti agung bayu Setiawan; I Gusti Bagus Sila Dharma; Ni Luh Putu Ria Puspitha
Journal of Marine and Aquatic Sciences Vol 9 No 1 (2023)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/jmas.2023.v09.i01.p05

Abstract

Jemeluk Beach is located in Purwakerti village, district of Abang, Karangasem regency. Jemeluk Beach is a developing tourism sector in Karangasem, which has the potential for coral reefs and various types of reef fish. Jemeluk Beach has snorkeling and diving tourism activities to develop its potential. With this is potential, s necessary to conduct research to analyze and develop suitable snorkeling and diving tours in the waters of Jemeluk Beach. This research was conducted at Jemeluk Beach, there are 6 stations in the research sampling. Collecting coral reef data using the Underwater Photo Transect method. Determination the level of the suitability of the area as a diving and snorkeling tourism spot using a matrix of area suitability analysis that considered the parameters of ecological conditions and water quality conditions using three parameters. The result showed that coral reef cover value ranged from 35,78% - 81,0%, the types of lifeform found ranged from 8 - 10 species, the water transparency value ranged from 57,78 - 82,22%, the water depth at stations 1, 2 and 3 is 3 - 4 m, station 4 is 10 - 15 m, and stations 5 and 6 are 5 - 10 m, current speed ranged from 11-15 cm/s, and the tourism suitability index (IKW) for the snorkeling and diving category at Jemeluk beach is included in the S2 category, which is conditional.
Co-Authors , I Wayan Nuarsa Abdi Jana Guna Andreas Pratama Togatorop Cindi Ayu Lestari Cok Istri Yudhantari Desy Shintya Irene Dwi Nindra Saputra Endang Wulandari Suryaningtyas Eriq Imanuel Hendra Yoga Pratama Heny Hayati I Dewa Ayu Ratna Raksa Eka Putri I Dewa Gede Alit Sujana I Dewa Nym. Nurweda P., I Gede Hendrawan I Gusti agung bayu Setiawan I Gusti Bagus Ngurah Adywan Surya Bhuwana I Gusti Bagus Sila Dharma I Gusti Ngurah Putra Dirgayusa I Ketut Junitha I Made Subali Arta Arta I Putu Gede Bayu Ade Wianta I Putu Oka Saduarsa I Wayan Arthana I Wayan Gede Astawa Karang I Wayan Matsya Deva Nagendra I Wayan Nuarsa I Wayan Nuarsa Ida Bagus Agung Parahita Adiguna Ida Bagus Ketut Ravidhya Krisna Sekar Ika Arofa Setiawati Jefry Cristian Bulan Jenisia Barros Soares Jero Ketut Tri Ayu Lestari Kadek Yudiastuti Maulana Ilham Fahmy Alam Miguel Jeremy Amadeus Tamaela Ni Kadek Ayu Dwi Lestari Ni Luh Watiniasih Pande Chrisna Aryasuta Putra, I Nyoman Giri Riris Christiani Gultom Selvi Dwi Septiarini