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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.

Perbandingan Jumlah Bakteri pada Sedimen Mangrove di Ekosistem Mangrove Rehabilitasi dan Alami di Desa Perancak, Jembrana, Bali Ni Putu Wira Argiantini; Ima Yudha Perwira; Ni Made Ernawati
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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This study aimed to know the difference of total bacterial number on the sediment of rehabilitation and natural mangrove ecosystem in the Desa Perancak, Jembrana, Bali. Sediment sampling was carried out in November 2019. The sediment sampling was carried out at two different sites, 3 station from the rehabilitation mangrove zone and 3 station from natural mengrove zone. Total bacterial number in the sediment was enumerated using Total Plate Count Method, pH was measured using pH meter, and dissolved solid was measured using TDS meter. The result showed that there was no bog difference in the bacterial amount between rehabilitation and natural mangrove ecosystem. The total dissolved solid in the rehabilitation mangrove was higher than that in the natural mangrove. The pH of sediment in the rehabilitation mangrove was lower than that in the natural mangrove. This result indicate that there is difference in the species community in both mangrove ecosystems.

Aspek Reproduksi Ikan Lemuru (Sardinella lemuru) yang Didaratkan di Pelabuhan Perikanan Nusantara (PPN) Pengambengan, Bali Ribka Evanzelina Laia; I Wayan Restu; Made Ayu Pratiwi
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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Sardinella (Sardinella lemuru) is a type of small pelagic fish which very important and economic value in Pengambengan Nusantara Fishing Port (NFP). Sardinella resources are stated to be in overfishing were marked by the catch that is getting smaller and the production has decreased every year. The situation of Sardinella resources in Bali Strait, especially in Pengambengan NFP must be maintained by managing, then stocks of Sardinella can be utilized sustainably. This research aims to provide an overview of conditions and threats to Sardinella around Pengambengan NFP as one of the largest fishing ports in Bali Strait includes Sardinella fisheries production in Pengambengan NFP, sex ratio, gonad maturity level, gonad maturity index, conditions factor, so Sardinella resources can be created sustainable. This research uses a simple random sampling method, by taking fish randomly from traders who contain various lengths and weights of Lemuru in Pengambengan NFP. Lemuru production from 2009-2018 in PPN Pengambengan has increased and decreased, this is due to several factors such as environmental changes and fishing activities by fishermen. The sex ratio of Sardinella landed in Pengambengan NFP has a ratio of 0.8: 1. Gonad Maturity Level obtained in TKG I and TKG II so the Gonad Maturity Index found was around 0.0291-0.2188. The range of condition factors from 0.9-1.4, it means Sardinella in the plump category.Sardinella lemuru; PPN Pengambengan; Reproduction

Kandungan Nitrat, Fosfat, dan Silikat di Perairan Pantai Pandawa, Bali Mila Jeniarti; Ima Yudha Perwira; I Ketut Wija Negara
Current Trends in Aquatic Science Vol 4 No 2 (2021)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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This study aimed to measure the concentration of nitrate, phosphate, and silicate in the water of Pandawa Beach waters. This study was conducted at the Kutuh Village (Badung, Bali, Indonesia), from December 2019 to January 2020. The water sample was collected from the location every week for one month. The water sample was taken from the surface, middle, and bottom of the water. Measurement of nitrate and silicate was performed using Salifert KIT Nitrate and Silicate, while measurement of phosphate was performed using Hanna 713 KIT analysis. The result showed that concentration of nitrate in the Pandawa Beach Waters was ranging from 0,91 to 2,00 mg/L. Concentration of phosphate was ranging from 0,32 to 1,93 mg/L, while silicate was ranging from 0,07 to 0,52 mg/L.

Laju Pertumbuhan Ikan Nila (Oreochromis niloticus) pada Tiga Sistem Resirkulasi yang Berbeda Yessica Christin; I Wayan Restu; Gde Raka Angga Kartika
Current Trends in Aquatic Science Vol 4 No 2 (2021)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Recirculation aquaculture system can be used to maintain the water quality during fish maintenance. This research aimed to determine the growth rate and survival rate of Tilapia (Oreochromis niloticus) by used three different recirculation system. The treatments are recirculation without filter (control), a biofilter system (bioball) and aquaponic systems (using water spinach and caisim). During eight weeks, the resulted of research showed the highest growth rate of Tilapia (Oreochromis niloticus) in biofilter treatment amounted for 4.58%/day followed by the control treatment for 4.09%/day and the lowest in aquaponic treatment for 3,81%/day. The best survival rate of Tilapia (Oreochromis niloticus) during the research contained in aquaponic treatment followed by biofilter treatment and the lowest value was in control treatment. During the research, of aquaponic treatment gave survival rate for 78.7%, biofilters 74.8% and control treatment for 63.5%. There were no significant differences (P > 0,05), between parameters for growth while survivl rate was significant (P < 0.05). The parameters of water quality include temperature, potential hidrogen (pH), dissolved oxygen (DO) and total dissolved solids (TDS). The quality range of water in all treatments generally described that the range were still running in tolerance for growth and survival rate of Tilapia.

Indeks Kesesuaian Wisata Bahari Kategori Rekreasi Pantai di Pantai Balangan, Kabupaten Badung, Bali Sherina Oktafianti; I Wayan Darya Kartika; I Wayan Restu
Current Trends in Aquatic Science Vol 4 No 2 (2021)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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This research was conducted to determine the suitability of marine tourism conditions for the beach recreation category to preserve sustainable marine tourism. The IKW data collection used the purposive sampling method. This research was divided into 3 observation stations with a sampling distance of 10 m from the shoreline to the sea. Determination of the marine tourism suitability index of beach recreation used the suitability matrix analysis by considering 10 parameters such as water depth, water brightness, beach type, beach width, beach slope, current velocity, water bottom material, coastal land cover, hazardous biota, freshwater availability. Water brightness, current velocity, beach widh, water depth and hazardous biota parameters data collection is carried out with 3 repetitions, whereas the other parameters are carried out without repetition. The parameter conditions for the IKW for beach recreation at Balangan beach had a white sand type of beach, beach width 28 m, the water bottom material is sand, water depth 0,66 m, water brightness 73%, current velocity 29 cm/s, beach slope 7,9°, coastal land cover is an open field, without hazardous biota, and freshwater availability 0,075 km. The results were obtained from the calculation of the IKW for beach recreation tourism at station I with a value of 2,92, station II 2,80, and station III 2,92. The result showed that all 3 stations were categorized as a very suitable category which indicates that Balangan Beach is very suitable as a beach recreation tourism object and can be further developed in its management.

Intensitas dan Prevalensi Endoparasit pada Ikan Layang (Decapterus russeli) yang didaratkan di Pantai Kedonganan Bali Amayliana Ajeng Nastiti; Pande Gde Sasmita Julyantoro; Dewa Ayu Angga Pebriani; Endang Wulandari Suryaningtyas
Current Trends in Aquatic Science Vol 4 No 2 (2021)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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The Indian scad (Decapterus russeli) is a pelagic fish that has high economic value, found throughout the Indonesian waters. The availability of Indian scad resources makes this fish easy to find, especially in Kedonganan Beach, Bali. The use of Indian scad for human consumption makes it necessary to pay attention to the quality of indian scad in order to avoid fish diseases, such as parasites. The attack of endoparasites in Indian scad can be zoonotic, which can be dangerous for humans who consume them, so research is needed to determine the density of endoparasite attacks and the percentage of endoparasites in indian scad. Samples of Indian scad (D. russeli) were obtained randomly from PPI Kedonganan and Kedonganan Fish Market. The observed organs were intestines, gonads and liver. The research was conducted for 1 month from 16 December 2020 to 17 January 2021 and fish samples were taken by random sampling. There were 35 fish samples (D. russeli) examined. The endoparasites found were Anisakis sp. (316 individuals), Camallanus sp. (15 individuals), and Lecithocirium sp. (33 individuals). The highest intensity in the genus Anisakis was 9.2 ind/fish and was classified as moderate infection and the highest prevalence was also in the Anisakis genus, which was 97.14% with (almost always categories), 60% of the genus Lecithocirium (very frequent categories), and the Camallanus genus of 28.50% with (frequent category).

Kandungan Padatan Teruspensi dan Padatan Terlarut pada Air di Bagian Hilir Sungai Ayung, Bali Tomtommy Haykal; Ima Yudha Perwira; I Wayan Darya Kartika
Current Trends in Aquatic Science Vol 4 No 2 (2021)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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This study aimed to know the amount of suspended solids and dissolved solids in the Ayung River. This study was carried out at the Downstream of Ayung River, from December 2019 to January 2020.Water sample collected from the location was analyzed for total suspended solids (TSS), total dissolved solids (TDS), temperature, pH, and DO. The result of the study showed that the amount of suspended and dissolved solid in the evening was relatively higher than that in the morning. Temporal analysis showed that there was no big difference in both parameters. In general, the water quality level in the downstream of Ayung River was belong to Class III according to the Government Regulation Number 82, released in 2001 about The Management of water quality and water pollution control.

Analisis Kesesuaian Lokasi Produksi Garam Berdasarkan Indeks Kesesuaian Garam (IKG) di Desa Nggolonio, Kabupaten Nagekeo, Nusa Tenggara Timur Theresia Alvianita Muga; Ima Yudha Perwira; I Wayan Darya Kartika
Current Trends in Aquatic Science Vol 4 No 2 (2021)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Nggolonio Village is one of the salt production areas in Aesesa District, Nagekeo Regency, East Nusa Tenggara. One effort that can be done to support efforts to increase salt production in Nggolonio Village is to analyze the suitability of salt production locations in the five research locations. The purpose of this study was to determine the Salt Suitability Index in the salt production center in Nggolonio Village. Data was collected in November 2019 from five different locations (three empty sites, one salt farmer area, and one salt company site). To obtain the Salt Suitability Index value, the secondary data was used on this study, such as: rainfall, irradiation time, air humidity, wind speed, air temperature, evaporation rate, and primary data on soil permeability, soil texture, and raw water saturation. The results showed that value of rainfall was 0.2 mm, irradiation time was 9.6 hours/day, air humidity was 31%, wind speed was 7.5 m/s, air temperature was 31 oC, evaporation was 7.8 mm/day, and the soil texture was loam. The soil permeability location I: 1.3×10-3 k, location II: 1.2×10-3 k, location III: 1.3×10-3 k, location IV: 2.0×10-3 k, location V: 1.8×10-3 k, raw water saturation location I: 3.8 oBe, location II: 2.8 oBe, location III: 2.8 oBe, location IV: 3.0oBe, and location V: 2.5 oBe. Based on the results, Salt Suitability Index at five locations in Nggolonio Village has similar index value, namely 88.89 %. These five locations fall into Very Suitable (S1) category as salt production locations.

Laju Pertumbuhan Karang Transplantasi Acropora sp. di Pantai Pandawa, Bali Mayang Utami; I Wayan Arthana; Ni Made Ernawati
Current Trends in Aquatic Science Vol 4 No 2 (2021)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Coral transplantation is a coral rehabilitation activity by cutting coral from a colony to be replanted. This study aimed to determine the differences in the growth of coral transplants of Acropora sp. using cement media and pipe media. Research on coral transplantation was carried out at the end of December 2020 to early March 2021 for 3 months at Pandawa Beach, Bali. Observations of coral growth using different media were carried out 6 times with an interval of 14 days using a caliper. Observations on the growth of coral fragments consisted of increasing the height and width of the coral. The results showed that the coral height of Acropora sp. using pipe media has the highest growth rate of 39.34 mm, coral height growth using cement media is 30.31 mm. The result of the highest growth width on coral using pipe media is 30.90 mm and the growth of coral width on cement media is 28.76 mm. The survival rate of coral Acropora sp. on cement media by 100% and on pipe media by 90%.

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Journal Mail Official
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Kota denpasar,

Bali

INDONESIA