Journal of Marine and Aquatic Sciences
Journal of Marine and Aquatic Sciences (JMAS) adalah peer-reviewed, open access journal, diterbitkan oleh fakultas Kelautan dan Perikanan, Universitas Udayana. JMAS menerbitkan hasil peneitian original dan review artikel dalam bidang ilmu kelautan, manajemen sumberdaya perairan, dan aplikasi remote sensing di bidang kelautan dan perikanan.
Articles
18 Documents
Search results for
, issue
"Vol 8 No 1 (2022)"
:
18 Documents
clear
<![CDATA[Komposisi dan biodiversitas padang lamun pada daerah konservasi dan non-konservasi di kawasan Sunda Kecil, Indonesia ]]>
<![CDATA[Putu Satya Pratama Atmaja]]>;
<![CDATA[Aditya Krisna Laharjana]]>
<![CDATA[ Journal of Marine and Aquatic Sciences Vol 8 No 1 (2022) ]]>
Publisher : <![CDATA[Fakultas Kelautan dan Perikanan Universitas Udayana ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.24843/jmas.2022.v08.i01.p01
<![CDATA[Seagrass is one of the most productive plants in the marine ecosystems. Seagrass meadows provide many ecosystems services for marine organisms, yet there is growing evidence that seagrasses are experiencing declines globally due to anthropogenic threats. Although the study of seagrass in Indonesia has been widely caried out, Bali and Lombok have received little attention. Our study aimed to investigates the biodiversity of seagrass beds among different meadows characteristics in Bali and Lombok. This study was conducted at conservation area and non conservation area in Bali and Lombok, which were consists of total 8 sites. A total of 9 seagrass species were identified in this study, where 8 species found in Bali, both in conservation and non-conservation area, while in Lombok only 5 species found in conservation area and 6 species in non-conservation area. Most common species that found in this study were Enhalus acoroides, Cymodocea rotundata, Thalassia hemprichii, Halodule uninervis, and Halodule pinifolia. Analysis of similarity (ANOSIM) revealed there was no significant differences of seagrass density between sites in Bali and Lombok. Bray-Curtis dendogram showed the highest similarity found between NCA Lombok and CA Lombok (75 %), followed by NCA Bali and CA Bali (45 %). Implications of our study was to provide baseline study about the important of seagrass management, restoration, conservation, and protecting them due to anthropogenic pressure.]]>
<![CDATA[Strategi Pengembangan Investasi Di Pelabuhan Perikanan Nusantara (PPN) Pengambengan, Bali ]]>
<![CDATA[I Ketut Wija Negara]]>;
<![CDATA[Dewa Ayu Angga Pebriani]]>;
<![CDATA[Ni Putu Putri Wijayanti]]>;
<![CDATA[Andi Mannojengi]]>;
<![CDATA[Bagus Sudananjaya]]>;
<![CDATA[Kadek Adi Chandra Kusuma]]>
<![CDATA[ Journal of Marine and Aquatic Sciences Vol 8 No 1 (2022) ]]>
Publisher : <![CDATA[Fakultas Kelautan dan Perikanan Universitas Udayana ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.24843/jmas.2022.v08.i01.p02
<![CDATA[The construction of a fishing port has been able to have an impact on growth in the economic sector in the fishery sector, economic growth which can directly improve the welfare of the fishing community. The purpose of this research is to be able to plan a strategy that must be implemented by the manager of the PPN Pengambengan to encourage the business development of service users in the PPN Pengambengan. The benefits obtained from this research are, to be able to improve the function of the PPN Pengambengan in serving the needs of coastal communities, fisher, the fishing industry, and other agencies so that they can directly develop the potential of resources around the port area both socially and economically. Data analysis in this research uses SWOT analysis with the stages of determining IFAS and EFAS, Matrix, SWOT Quadrants. The results of the study get an IFAS value of 0.34 (x), and an EFAS value of – 0.02 (y), where the value is in the Diversification Strategy position or using the ST strategy. The strategies offered for investment development in PPN Pengambengen are in the Diversification Strategy (ST) quadrant position, namely; transfer of fishing technology, controlling the loading and unloading process through improving K5 performance, special land for SPBN refueling, and expansion of road infrastructure for the fisheries industry to be adequate for the mobilization.]]>
<![CDATA[Komunitas Bakteri Yang Berasosiasi Dengan Karang Acropora horrida ]]>
<![CDATA[Putu Natalia Sarasvati]]>;
<![CDATA[I Dewa Nyoman Nurweda Putra]]>;
<![CDATA[Widiastuti Widiastuti]]>
<![CDATA[ Journal of Marine and Aquatic Sciences Vol 8 No 1 (2022) ]]>
Publisher : <![CDATA[Fakultas Kelautan dan Perikanan Universitas Udayana ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.24843/jmas.2022.v08.i01.p06
<![CDATA[Symbiotic corals are not only with zooxanthella but also with various microorganism communities, namely bacteria. The presence of bacteria on the reef acts as a nutrient provider for coral animals. One of the adaptations made by corals to environmental changes is by secreting mucus. Mucus provides living space for various types of bacteria. Acropora coral is one of the largest and most extensive coral builders in coral ecosystems, adaptable, and has a fast recovery rate from coral bleaching. The aimed of this study was to determined the bacterial community associated with A. horrida coral mucus. Bacterial identification was based on observations of colony morphological tests and biochemical tests. The results of this study showed that 6 isolates of A. horrida coral mucus bacteria on average have a round shape with a complete border, flat elevation, and white with a smooth texture. The six bacterial isolates showed negative results where there were no bubbles. The oxidase test results showed 3 negatives with no change in color and 3 positives with a change in color to violet. In the gram staining test, there were 2 gram-negative isolates and 4 gram-positive isolates. Characteristics of the six bacterial isolates associated with A. horrida coral mucus identified include the Micrococcaceae, Lactobacillaceae, Clostridiaceae, and Rhizobiaceae families. It was suspected that these bacteria are opportunistic, where the density will increase if there are pollutants into coral reef ecosystems such as organic matter and nitrogen which can increase their growth.]]>
<![CDATA[Penggunaan Metode Rolling Mosaic Untuk Mendukung Pengembangan Peta Prakiraan Daerah Penangkapan Ikan Wilayah Pesisir ]]>
<![CDATA[Komang Iwan Suniada]]>
<![CDATA[ Journal of Marine and Aquatic Sciences Vol 8 No 1 (2022) ]]>
Publisher : <![CDATA[Fakultas Kelautan dan Perikanan Universitas Udayana ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.24843/jmas.2022.v08.i01.p07
<![CDATA[Predicted fishing ground maps (PPDPI) which made using satellite image data is often constrained by clouds, causing its production not too optimal. Rolling mosaic methods examined here is expected to reduce cloud cover so the information about oceanographic conditions can be more visible and can increasing PPDPI production. In July, the percentage of sea surface temperature data can increase from 15.3%-30.29% using 1-day mosaic data, to 40.46%-56.75% using 3-day mosaic, it increases to 72.24%-77.88% using 7-day mosaic data and increase to 84.19%-89.07% using 14-day mosaic. While the percentage of sea surface temperature data in December can be increased from around 4.93%-13.03% to 41.48%- 51.60%. In general, at July and December, the relationship between 1-day mosaic and 3-days mosaic data, 7-days and 14-days are very strong, but the strength of the relationship will decrease (the correlation coefficient gets smaller) along with the increasing of the time range used to mosaicking the data. The RMSE shows that the RMSE between the 1-day mosaic with 3-days mosaic is 0.288 (July), 0.263 (December); RMSE between 1-day mosaic and 7-days mosaic is 0.388 (July), 0.387 (December) and RMSE between 1-day mosaic and 14-days mosaic is 0.471 (July), 0.477 (December). This RMSE values shows that the longer time range used to construct the mosaic, the error value will also increase. Scoring analysis using percentage of data, correlation coefficient and RMSE as a parameters indicate that the 7-days mosaic method has the highest score so it is considered as the best method to be used to predict sea surface temperature with minimum cloud cover.]]>
<![CDATA[Jenis Pakan yang Berbeda terhadap Performa Benih Arwana Silver Albino (Osteoglossum bicirhosum) ]]>
<![CDATA[Sarmila Sarmila]]>;
<![CDATA[Agus Setiawan]]>;
<![CDATA[Hylda Khairah Putri]]>;
<![CDATA[Susilawati Susilawati]]>;
<![CDATA[Farid Mudlofar]]>;
<![CDATA[Sri Warastuti]]>;
<![CDATA[Ridwan Salim]]>
<![CDATA[ Journal of Marine and Aquatic Sciences Vol 8 No 1 (2022) ]]>
Publisher : <![CDATA[Fakultas Kelautan dan Perikanan Universitas Udayana ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.24843/jmas.2022.v08.i01.p03
<![CDATA[Albino Silver Arowana (Osteoglossum bicirrhosum) is one of the most popular freshwater ornamental fish commodities alongside Super Red Arowana fish. This is because the price is affordable compared to the original Indonesian Arowana type. Albino Silver Arowana cultivation activities in Indonesia have begun to develop, but information on suitable feeds to support performance is poorly studied. This study aimed to determine the right type of feed to provide the best growth rate and survival rate for albino silver Arowana seeds. The albino silver Arowana seeds used in this study had an average size of 7. cm as many as 72 individuals. Seed maintenance was carried out for 40 days. This study used a completely randomized design (CRD), with 4 treatments and 3 replications. Treatment A used Kroto (Oecophylla smaragdina), treatment B used rebon shrimp (Mysis relicta), treatment C used yellow mealworm (Tenebrio Molitor), and treatment K used bloodworm (Chironomus sp.). Seed growth rate data were collected at the end and beginning of maintenance. Observation of the survival rate of seeds was carried out every day. The data obtained were tabulated and statistical analysis was performed (ANOVA). The results showed that the sources given in treatment K and treatment A had the highest growth compared to those in treatment B and treatment C.]]>
<![CDATA[Pemetaan Perubahan Luasan Mangrove Menggunakan Citra Sentinel-2A Pasca Kematian Massal Mangrove di Denpasar-Bali ]]>
<![CDATA[Rowand Danny Sebastian Adinegoro]]>;
<![CDATA[I Dewa Nyoman Nurweda Putra]]>;
<![CDATA[I Nyoman Giri Putra]]>
<![CDATA[ Journal of Marine and Aquatic Sciences Vol 8 No 1 (2022) ]]>
Publisher : <![CDATA[Fakultas Kelautan dan Perikanan Universitas Udayana ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.24843/jmas.2022.v08.i01.p08
<![CDATA[Province of Bali is one of the mangrove forests distributed in Indonesia, which is spread over three sites, including Tahura Ngruah Rai. The mangrove area in the Tahura, especially in Denpasar city, mangrove forest suffered due to human activities and natural factors. Therefore, there is a need to monitor the distribution of mangrove forests in the area. Remote sensing is one of the technologies that can be used to control the extent and distribution of mangrove in that area. The aimed of this study was to determined the best band combination on the Sentinel-2A in detecting the mangrove-specific land cover, which was then used to map the extent of mangrove areas after death. The Band combinations tested are the combinations of band 4-3-2, 11-8-4 dan 8-11-2 on the Sentinel-2A. The results indicated that the value of producer accuracy (PA) as well as user accuracy (UA) in the mangrove class with combined band of 4-3-2 (PA= 92.59%, UA= 98.04%), 11-8-4 (PA= 85.19%, UA=88.46%), and 8-11-2 (PA= 71.15%, UA= 84.09%). This study concluded that the band combination of 4-3-2 is able to detect the mangrove better than the band combination of 11-8-4 and 8-11-2 with the total accuracy and an accuracy of the kappa respectively around 91.24% and 91.15%. Mangrove forests of the Tahura Ngura Rai, Denpasar city, had decreased the extent of mangrove forests by 25.58 hectares over a period of four years in 2016 (before incident) until 2020 (after incident).]]>
<![CDATA[Analisis Kecepatan Perambatan Gelombang Internal Soliter di Selat Lombok dengan Citra Himawari-8 ]]>
<![CDATA[Chonnaniyah Chonnaniyah]]>;
<![CDATA[I Wayan Gede Astawa Karang]]>;
<![CDATA[Abd. Rahman As-syakur]]>;
<![CDATA[Takahiro Osawa]]>
<![CDATA[ Journal of Marine and Aquatic Sciences Vol 8 No 1 (2022) ]]>
Publisher : <![CDATA[Fakultas Kelautan dan Perikanan Universitas Udayana ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.24843/jmas.2022.v08.i01.p04
<![CDATA[Internal waves are phenomena that occur below sea surface. One of the most observed types of internal waves was called a solitary wave or soliton so it is often known as an internal solitary wave (ISW). Lombok Strait was one of the straits located in the southern part of the Indonesian archipelago which has the characteristics of intensive ISW generation because this strait has complex waters characteristics. This study aim to analyzed in detail the changes in the ISW propagation speed at the first crest soliton every 10 minutes using Himawari-8 data. The detected ISW pattern is then extracted at the first crest of the soliton as a reference to measure the distance between the detected soliton every 10 minutes as input in estimating the propagation speed. The Himawari-8 image which was in this study detected 2 ISW packets in the Lombok strait area. Packet 1 which was detected in the northern part of the Lombok strait approaching Kangean island had a group speed of 2.22 m/s and Packet 2 which was detected in the area around the Lombok strait had a group speed of 2.78 m/s. The difference in group velocity of the two packets is due to the variation in depth along the ISW propagation. The analysis results of changes in ISW propagation speed in this study indicate that Himawari-8 imagery is a very effective instrument for analysing changes in ISW propagation speed in detail every 10 minutes which is difficult for satellite imagery which usually has low temporal resolution.]]>
<![CDATA[PENGEMBANGAN EKOWISATA DI PULAU PENYU TANJUNG BENOA BALI BERDASARKAN PRINSIP-PRINSIP EKOWISATA ]]>
<![CDATA[I Putu Oka Saduarsa]]>;
<![CDATA[I Gusti Ngurah Putra Dirgayusa]]>;
<![CDATA[Ni Luh Putu Ria Puspitha]]>
<![CDATA[ Journal of Marine and Aquatic Sciences Vol 8 No 1 (2022) ]]>
Publisher : <![CDATA[Fakultas Kelautan dan Perikanan Universitas Udayana ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.24843/jmas.2022.v08.i01.p09
<![CDATA[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).]]>
<![CDATA[spatial distribution of plankton in makassar strait ]]>
<![CDATA[Ni Wayan Sintaningsih]]>;
<![CDATA[Eloq Faiqoh]]>;
<![CDATA[I Dewa Nyoman Nurweda Putra]]>
<![CDATA[ Journal of Marine and Aquatic Sciences Vol 8 No 1 (2022) ]]>
Publisher : <![CDATA[Fakultas Kelautan dan Perikanan Universitas Udayana ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.24843/jmas.2022.v08.i01.p05
<![CDATA[Selat Makassar merupakan lintasan pertama arlindo yang dimana lintasan pertama ini sebagaian besar mentransfer air yang kemudian menuju selat Lombok. Arus lintas Indonesia ini membuat perairan Indonesia terutama bagian timur menjadi subur akibat adanya proses upwelling dan proses pencampuran serta interaksi air dengan udara yang menyebabkan kandungan nutrisi dan mineral menjadi kaya pada lapisan laut dalam. Beberapa penelitian tentang plankton di Selat Makassar masih berkisar tentang klorofil- a sedangkan penelitian tentang plankton sendiri masih belum ada. Oleh karena itu, penelitian tentang distrubusi spasial plankton di selat makassar penting dilakukan yang dapat digunakan sebagai informasi dasar tentang pengaruh arlindo terhadap struktur komunitas plankton di selat makassar. Metode pengambilan plankton menggunakan metode tuang. Metode ini dilakukan dengan mengambil air dengan menggunakan alat water sampler sebanyak 30 liter pada kedalaman 0 meter, 100 meter dan 250 meter. Fitoplankton yang ditemukan di Selat Makassar yaitu Kelas Bacillariophyceae yang sering ditemukan dengan kelimpahan yang tinggi dengan genus Chaetoceros dan Nitzhia.dari kelas Cyanophyceae yang sering ditemukan dengan kelimpahan relative tinggi adalah Oscillatoria sedangkan kelas Chlorophyceae yang ditemukan adalah genus Chroococus. Sedangkan zooplankton yang ditemukan di Selat Makassar yaitu Kelas hexanaupilia yang sering ditemukan dengan kelimpahan relatif tinggi yaitu genus Cyclops. Kelas Malacostraca yang ditemukan di Selat Makassar yaitu Naupiliisedangkan kelas Maxilopoda yang ditemukan di Selat Makassar yaitu genus Copepod.]]>
<![CDATA[Strategi Prioritas Pengembangan Wisata Rumput Laut Berbasis Desa Adat di Pantai Geger, Kelurahan Benoa, Badung, Bali ]]>
<![CDATA[I Putu Aditya Budi Wacika]]>;
<![CDATA[I Gusti Ngurah Putra Dirgayusa]]>;
<![CDATA[Gede Surya Indrawan]]>
<![CDATA[ Journal of Marine and Aquatic Sciences Vol 8 No 1 (2022) ]]>
Publisher : <![CDATA[Fakultas Kelautan dan Perikanan Universitas Udayana ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.24843/jmas.2022.v08.i01.p18
<![CDATA[Community-based tourism management can be used as a reference in tourism development because it provides great opportunities for local communities in all of processes, especially planning, management, monitoring and evaluation. The purpose of this study was to determined the internal and external potential of Geger Beach and to develop strategies for developing seaweed tourism based on traditional villages. Data collection methods consisted of observation, interviews, questionnaires, and literature study. The analysis used in this study were descriptive qualitative analysis and SWOT analysis. Based on the study results, the main strengths of the development of seaweed tourism in Geger Beach is the existence of cooperatives that’s integrated by traditional villages and the main weakness is the supporting facilities still need to be improved. The highest opportunity is the involvement of local communities and the biggest threat is pollution of the aquatic environment due to hotel waste. The priority strategies for developing seaweed tourism in Geger Beach are to raise the role of the pecalang segara immediately in controlling the security and guarding system of Geger Beach, collaboration between the government and traditional villages in implementing policies and regulations that have been made, increasing the role of traditional villages which include local community participation, creates seaweed tourism with its own characteristics from the Peminge Traditional Village, and also creates a master plan to support the successful development of seaweed tourism.]]>
