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Journal : Current Trends in Aquatic Science

Pemanfaatan Seledri (Apium graveolens) dan Tanaman Mint (Mentha piperita) Dalam Sistem Akuaponik di KJA Danau Batur Komang Lina Rosita Sugiarni; I Wayan Arthana; Gde Raka Angga Kartika
Current Trends in Aquatic Science Vol 2 No 2 (2019)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Abstract

Penelitian ini bertujuan untuk mengetahui manfaat tanaman hidroponik jenis tanaman Seledri (Apium graveolens) dan tanaman Mint (Mentha piperita) pada Keramba Jaring Apung di Danau Batur mengunakan konsep akuaponik. Pengambilan data pertumbuhan tanaman dilakukan selama 2 bulan dari Bulan Desember 2018 – Januari 2019. Pengukuran dilakukan untuk parameter tinggi tanaman, jumlah batang, jumlah daun dan kualitas air. Tanaman Seledri dan Tanaman Mint dapat hidup pada Keramba Jaring Apung dengan pH air danau sangat basa (8,5). Tanaman seledri memiliki pertumbuhan lebih baik dibandingkan dengan tanaman mint. Tanaman seledri dapat hidup sampai minggu ke 8, sedangkan tanaman mint hanya dapat hidup sampai minggu ke 4. Hal ini mungkin dikarenakan oleh cuaca buruk serta gelombang yang tinggi. Nilai pH pada tanaman seledri dan tanaman mint pada minggu 1 hingga minggu ke 5 sebesar 8,4 – 8,9 sedangkan pada minggu ke 7 dan minggu ke 8 menunjukkan nilai pH sebesar 6,3 – 7,7. Nilai TDS pada tanaman seledri tidak mengalami fluktuasi secara signifikan, sedangkan pada tanaman mint dengan kepadatan 4 tanaman/0,16 m2 nilai TDS di minggu 1 tinggi dan pada minggu ke 7 nilai TDS pada kepadatan 2 tanaman/0,16 m2 mengalami kenaikan. Pada area sekitar Keramba Jaring Apung memiliki suhu perairan yaitu 25.4 °C – 27 °C. Selama 2 bulan suhu mengalami fluktuasi akibat kondisi cuaca yang berubah-ubah pada saat melakukan pengukuran suhu.
Keanekaragaman Jenis dan Sebaran Ikan di Danau Buyan Bali I Gusti Agung Dwikhy Oka Taradhipa; I Wayan Arthana; Gde Raka Angga Kartika
Current Trends in Aquatic Science Vol 1 No 1 (2018)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (829.062 KB) | DOI: 10.24843/CTAS.2018.v01.i01.p08

Abstract

Buyan lake is one of the lake in bali, located in pancasari village, sukasada, buleleng. Lack of research on the identification and distribution of fish species in buyan lake. Therefore, it is necessary to conduct research on the identification and distribution of fish species in the buyan lake. This research is take place in pancasari village, sukasada, buleleng. This research is conducted from january to march 2018. Sampling is done 3 times in 3 month. Location determination by using purposive sampling with 4 stations. The fish catch is done by using the gill net with the size 1cm, 5cm and 6,5cm and bubu. The type of fish in this research is 7 type with the total of the catch is 1024 fish. The fish that get biggest share is nyalian srembeng fish that can meet in every research station smallest share is ikan mas that can meet only in station 1, 2 and 3. The variant of fish that located in buyan lake is one of the mid category. uniformity fall into the low category and domination fish include low category.
Kelimpahan, Keanekaragaman, dan Pertumbuhan Alami Bintang Laut (Asteroidea) di Perairan Pantai Semawang dan Pantai Samuh, Bali Ni Wayan Ernawati; I Wayan Arthana; Ni Made Ernawati
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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Abstract

Semawang beach and Samuh beach are located in the area of Sanur and ITDC Nusa Dua, Bali. This study aims to find out abundance, diversity, domination, natural growth of starfish, and to know the physical and chemical conditions of waters. The method used was descriptive quantitative method. The highest total abundance in sub station 1 was 0,0045 ind/m2 (Semawang beach), diversity index ranged from 0,86 to 1,06 and the dominance index ranged from 0,45 to 0,5. The highest total abundance in sub station 1 was 0,118 ind/m2 (Samuh beach), diversity index ranged from 1,32 to 1,92 and dominance index ranged from 0,21-0,4. The long range of arms (R), radius of disc (r), and weight (W) of the starfish found on Semawang beach and the Samuh beach was R: 5,9-13,6 cm, r: 0,9-7,8 cm, W: 15,6-1896,6 gr, and R: 3,6-11,6 cm, r: 0,5-7,9 cm, W: 6,3-1835,9 gr. The equation of arms length relation and weight and the relation of radius of disc and weight with the highest R2 value at Semawang Beach is found in the Pentaster obtusatus species W = 0,1738L2,8214 and 70% W = 11,9780L1,7876. The equation of arms length relation and weight and the relation of radius of disc and weight with the highest R2 value at Samuh beach is found in species Linckia guildingi W = 2,9166L0,6170 and W = 9,2138L0,5169. The measurement result water quality parameters in Semawang beach waters ranges from 29-30°C (temperature), 5,5-5,7mg/L (DO), 30,5-31,5 ppt (salinity), and 8,2-8,5 (pH), while in Samuh beach waters of ranges 28-28,5°C (temperature), 5,5 mg/L (DO), 30-30,8 ppt (salinity), and 7,7 (pH).
Fluktuasi Kualitas Air Budidaya Ikan Nila (Oreochromis niloticus) dengan Beberapa Variasi Sistem Resirkulasi M Alfian Pratama; I Wayan Arthana; Gde Raka Angga Kartika
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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Abstract

Water quality has considerable influence on the survival rate and growth of Tilapia in aquaculture waters. Good environment is required for fish growth and survival rate. Recirculation aquaculture system can be used to maintain the optimal quality of water during fish maintenance. The working principle of recirculation system is reuse water repeatedly so the temperature, oxygen and other distributions more evenly distributed. This research aims to determine the water quality fluctuation that occurs in aquaculture of Tilapia with unfiltered recirculation system (control), biofilters system (bioball) and aquaculture system (using water spinach and pakchoy). The measured water quality parameters include temperature, potential hidrogen (pH), dissolved oxygen (DO), turbidity and total dissolved solids (TDS). The results of six repetitions on control treatment, biofilter treatment and aquaponic treatment showed pH values range from 7-8, dissolved oxygen from 6-8.5 ppm, temperature from 28-30 ° C, total dissolved solid from 250- 500 ppm, and turbidity values range from 0.5 to 6 NTU. The statistic result showed significant differences (P<0,05), between parameters for temperature, pH, dissolved oxygen, and turbidity, while parameter total dissolved solids there were no significant differences (P>0,05). The best water quality results showed for aquaponic treatment because values of water quality tend to be stable for fish growth.
Struktur Komunitas dan Tingkah Laku Ikan Pada Karang Genus Acropora di Perairan Desa Bondalem, Provinsi Bali Fikri Huda Falah; I Wayan Arthana; Ni Made Ernawati
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 was conducted to determine the condition of reef fish communities and fish behavior at coral genus Acropora. Data retrieval was done in 3 observation points. The observations was done by stationary visual sensus method. The observations were made as 3 times during 3 months. The result of data collected on 3 observation points obtained 35 species. Diversity category in 3 locations tend to be moderated, the value was range of 2.20 to 2.75 related to the value of dominance indexs, was range of 0.07 to 0.14. The value of similarity indexs (E) was range of 0.89 to 0,99 indicated a stable reef fish community. Based on observations of the behavior of fish in the community at each fish station had solitary and schooling behavior. Fish swimming habits generally swim above, below, or beside the reef. But also observed several types of fish that have a habit of swimming in crevices of coral which was the fish family of Pomacentridae. As for feeding habits, fish which were observed had an eating activities swimming toward their food. The results of measurements of current speed range from 0.37 to 1.20 m/s, the visibility was reached to the bottom of the water, turbidity 1.30-1.40 NTU, temperature 29.33-29.67°C, Depth 4.2-13.7 m, and the range of salinity values were 30.00-31.67‰. This value was still in accordance with the standard quality of sea water for marine biota. This was in accordance with the quality standard value of Bali Governor Regulation No.16 Year 2016.
Struktur Komunitas Epifauna di Area Pasca Budidaya Rumput Laut di Kabupaten Badung Bali Mohammad Rizqi; I Wayan Arthana; Alfi Hermawati Waskita Sari
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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Abstract

Pandawa and Geger Beaches used to be seaweed farming areas, later became tourist attractions which resulted in changes in the structure of the epifauna community. This study aims to determine the community structure and water quality at both beaches. The study was conducted from December 2018 to January 2019. Descriptive method was used and the determination of stations used purposive sampling. The sample was taken by the line transect method. The highest abundance of Pandawa Beach epifauna was Diadema setosum (0.444 ind / m2). The highest diversity at the seaweed cultivation area station with a value of 1.105 which belongs to the medium category. The highest uniformity was also in the same station with a value of 0.797 which indicate a stable epifauna community. The highest dominance in the tourist area station with a value of 0.861 which indicates high dominance. At Geger Beach the highest abundance of epifauna was Cerithidea obtusa species and Tripneustes gratilla with the same abundance (0.144 ind / m2). The highest diversity at the station adjacent to the coral pool with a value of 1,944 included in the medium category. The highest uniformity at the same station with a value of 0.935 which indicates a stable epifauna community. The highest dominance was obtained at the station near the pier with a value of 0.229 which showed low dominance. Pandawa and Geger Beaches water quality was still relatively optimal with an average temperature, dissolved oxygen, salinity, currents, and pH of 30.5 oC; 5.4 ppm; 30.3 ppt; 0.1 m/s; and 8.6 respectively. At Geger Beach, the average temperature, dissolved oxygen, salinity, current and pH were 30.6 oC; 5.1 ppm; 30.1 ppt; 0.1 m/s; and 8.7 respectively.
Keterkaitan Tingkat Kesuburan Perairan Keramba Jaring Apung Dengan Fitoplankton Di Desa Terunyan, Danau Batur, Bali Ifan Martin Nopem; I Wayan Arthana; Ayu Putu Wiweka Krisna Dewi
Current Trends in Aquatic Science Vol 3 No 1 (2020)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Abstract

This objective of this study is to determine the relationship of the level of water fertility in the waters of cage with phytoplankton in Terunyan Village, Batur lake. Data collected once a week in three months from November 2018 - January 2019. This study used descriptive methods and sampling points were determined using a purposive sampling technique based on the number of cage in the lake which consists of 3 points. Points 1 was the maximum number of cage of ± 500 pieces. Points 2 has a smaller number of cage which was ± 200 pieces. Points 3 was in location of no cage site. The abundance of phytoplankton tend to be less in the point that had more cages and overall the study obtained 14 phytoplankton genera from 4 phyla. The value of phytoplankton Abundance ranges from 4647 -7374 sel/L which is cathegorized in mesotrophic waters. The results of measurement of water quality parameters in a row with the range TSS 5.0 - 6.7 mg/L; Ammonia 0.155 - 0.177 mg/L; Nitrate 0.288 - 0.306 mg/L; Phosphate 0.207 - 0.565 mg/L; pH 7.9 - 8.0; Temperature 26 - 270C, Turbidity 3.049 – 3.410 NTU; DO 6.4 - 6.9 mg/L; Brightness 135.3 - 140.1 cm and TDS 107.5 - 130 mg/L.
Identifikasi Bakteri Patogen Pada Ikan Nila (Oreochromis niloticus) di Danau Batur, Bali Ni Putu Wiwin Angreni; I Wayan Arthana; Endang Wulandari Suryaningtyas
Current Trends in Aquatic Science Vol 1 No 1 (2018)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (813.466 KB) | DOI: 10.24843/CTAS.2018.v01.i01.p13

Abstract

This research aims to determine types of pathogen bacteria presented in body parts (liver and kidneys) of Tilapia (Oreochromis nilotics), types of bacteria attacks wild Tilapia and fish in Floating Culture Net (FCN) of Batur Lake as well as its prevalence bacteria found in Tilapia on Batur lake. Method used in this research is descriptive method, with a sampling method based on purposive sampling technique. According to identification’s result obtained, types of bacteria that infect liver were including to Aeromonas hydrophila, Plesiomonas shigelloides and Citrobacter freundii bacteria. Meanwhile, bacteria that infect kidneys are Aeromonas hydrophila, Aeromonas caviae, Plesiomonas shigelloides and Citrobacter freundii. Bacteria that infect wild fish are Aeromonas hydrophila, Aeromonas caviae and Plesiomonas shigelloides , while fishes in FCN are infected by Aeromonas hydrophila, Aeromonas caviae, Plesiomonas shigelloides and Citrobacter freundii bacteria. Infection prevalence of pathogen bacteria in Tilapia in Batur Lake is Aeromonas hydrophila at 55,5%, Plesiomonas shigelloides for 27,7%, Aeromonas caviae and Citrobacter freundii at 11,1%. According to sampling location, prevalence of bacteria that attacks wild fish are Aeromonas hydrophila and Plesiomonas shigelloides at 44,4%, Aeromonas caviae for 11,1%. Prevalence of bacteria that attacks fish in FCN is Aeromonas hydrophila for 66,6%, Citrobacter freundii infection at 22,2%, Aeromonas caviae and Citrobacter freundii at 11,1%.
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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Abstract

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%.
Produktivitas Primer Fitoplankton pada Daerah Penangkapan Ikan di Taman Wisata Alam Danau Buyan, Buleleng, Bali Ni Kadek Suardiani; I Wayan Arthana; Gde Raka Angga Kartika
Current Trends in Aquatic Science Vol 1 No 1 (2018)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (657.635 KB) | DOI: 10.24843/CTAS.2018.v01.i01.p02

Abstract

This research aims to identify productivity value of phytoplankton’s net primary as well as its relation within parameter of physics, chemistry, and aquatic biology to the productivity value of phytoplankton’s net primary in the waters of Lake Buyan Nature Park. Measurement of primary phytoplankton productivity is conducted by using bright and dark bottle method. The taking of lake water samples for measurement of phytoplankton primary productivity and measurement of supporting parameters namely physics (temperature, brightness, turbidity), chemistry (pH, nitrate, phosphate) and biology (phytoplankton abundance) were carried out at four research stations in the fishing area. Data analysis used in this research is correlation analysis among parameters of physic, chemistry, and aquatic biology to the net primary productivity value of phytoplankton by using the PAST 3.1 application. The obtained result showed that the value of net primary productivity ranged from 76.39 to 211.46 mgC / m3 / day and the parameters of physics, chemistry and aquatic biology have a relationship with net primary productivity of phytoplankton. Brightness, abundance of phytoplankton, nitrate, temperature, dissolved oxygen, pH and phosphate which are positively correlated with net primary productivity of phytoplankton while water turbidity is negatively correlated with it. Parameters that have a strong to very strong relationship with net primary productivity are dissolved oxygen, temperature, nitrate, phytoplankton abundance, and water brightness.
Co-Authors A.A. Gede Cahya Pratama Abd. Rahman As-syakur Agus Wija Atmaja Aida Sartimbul Alfi Hermawati Waskita Sari Alya Namira Anak Agung Sagung Laksmi Dewi apri i supi'i Arief Reza Fahlevi Ayu Putu Wiweka Krisna Dewi Bejo Slamet Beny Mustofa Bram Setyadji Bunga Divia Arimbi Cakranegara, Pandu Adi Candra Saputra CoK.I.M. HANDAYANI Daniel Nemba Dambe Daniel Tri Lakona Sinamo Debi Bunga Novitasari Deny Suhermawan Yusup Deptson Baringin Silaen Desak Putu Risky Vidika Apriyanthi Dewa Ayu Angga Pebriani Dewa Gde Tri Bodhi Saputra Dwi Suprapti Elok Faiqoh Endang Rustiasih Endang Wulandari Suryaningtyas Fanlia Prima Jaya Fikri Huda Falah Fina Wahyuningsih GALIH INDRAWATI Gde Raka Angga Kartika Gde Raka Angga Kartika Gede Dwi Sukmawantara Gede Pasek Sutedja Gede Surya Indrawan Gemaya Wangsa Gultom, Henry Casandra Gunawan Tarigan Gusti Ayu Manik Pradnyani Habibatus Sholihah Hanifa Miranda I.H. Putri Heidi Siddiqa Heri Prabowo Herlisa Setiarini Hikmah Nurazizah Husnayati Hartini I Dewa Gede Warmadewa I Dewa Nym. Nurweda P., I Gede Agus Isha Purusa I Gede Hendrawan I Gede Surya Risuana I Gede Wahyu Surya Wirawan I Gusti Agung Bagus Arya Pradnya Pratama I Gusti Agung Dwikhy Oka Taradhipa I Gusti Ayu Diah Hendiari I Gusti Ayu Novie Sidaningrat I Gusti Bagus Suputra I Gusti Made Sudipta I Kadek Tobing Ascahya I Ketut Swardika I Komang Dianto I Made Adi Karsa I MADE ADI PRANATHA I Made Minggu Widyantara I MADE SUDARMA I Made Suma Krisna Sravishta I Made Suwitra, I Made I Nyoman Gede Sugiartha I NYOMAN MERIT I Nyoman Sudipa I Nyoman Sumardika I Nyoman Sutama I Nyoman Sutama I Nyoman Yoga Parawangsa I Putu Eka Mahendra I Putu Yoga Pramana Putra I W BUDIARSA SUYASA I Wayan Gede Astawa Karang I Wayan Juliawan I Wayan Kasa I Wayan Restu I Wayan Sandi Adnyana I Wayan Suarna I Wayan Subawa I Wayan Wesna Astara IDA AYU ASTARINI Ida Ayu Putu Widiawati Ida Ayu Utari Dewi ida bagus adi palguna Ida Bagus Ketut Gede Kertia Ida Bagus Lampita Prabawa Ida Bagus Windia Adnyana Ifan Martin Nopem IPG ARDHANA IRMA YULIA MADJID Joko Wiryatno Josua Siagian Josua Siagian KADEK ARY ANGGRAENI KADEK ARY ANGGRENI Kartika, I Wayan Darya Karyono Karyono Khadijah Irania Kolis Pratama Komang Bayu Permana Komang Gede Pramantara Komang Lina Rosita Sugiarni Krisna Jumantara Panca Putra Letia Alda Fadilla Lisa Rosalia Prayuda Ludia Panggalo Luh Putu Diah Ananda Wijayanti Luh Putu Sudini M Alfian Pratama M. Sudiana Mahendra Made Ayu Pratiwi Made Widya Sekarbuana Mayang Utami Meta Apriliawati Sandi Miftachudin Syaiful Ma'ruf Mohammad Rizqi Mohan Budiman MOKHLAS SATIBI Mu'tasim Billah Muh. Abduh Anwar Muhammad Asir Muhammad Sawir Muhammad Yusuf Ni Desak Putu Dita Herlinawati Ni Kadek Suardiani Ni Komang Rai Widhyaningsih Ni Luh Ayu Gita Astriani Ni Luh Ayu Gita Astriani Ni Luh Gede Ambarawati Ni Luh Gede Rai Ayu Saraswati Ni Luh Made Ari Sugianthi Ni Luh Putu Citra Adriyanti Ni Luh Watiniasih Ni Made Ary Widiastiti Ni Made Ernawati, Ni Made Ni Made Putri Kartika Jati Ni Putu Ayustin Krisnati Dewi Ni Putu Bella Yuliana Dewi Ni Putu Putri Wijayanti Ni Putu Sawitri Nandari Ni Putu Vivin Nopiantari Ni Putu Wiwin Angreni Ni Wayan Desy Wahyudiati Ni Wayan Ernawati NI WAYAN FEBRIANA UTAMI Ni Wayan Indah Purnamawati Nyoman Dati Pertami Octria Vesensia Olivia Grace Brigitta Florencia Pandu Pratama Putra Putra, I Nyoman Giri Putri Eka Cahyani Putri Febrine Nainggolan Putri Nilakandi Perdanawati Pitoyo Putu Agus Arisudana Putu Ayu Irma Wirmayanti Putu Dyah Prastiti Sukma Febriany Putu Suryani . Rachmat Andi Saputra Rani Ekawaty Ranny R. Yuneni Ravita Kusuma Dewi Rifaldus Dani S.A NYOMAN PUTRI TRIANTINI Sang Ayu Indah Sukma Dewi Stephanus Tambunan Suciati - SUCIKA ARMIANI, SUCIKA Suko Ismi Supardiono Supardiono Suprabadevi Ayumayasari Saraswati Suprabadevi Ayumayasari Saraswati Suprabadevi Ayumayasari Saraswati Suprabadevi Ayumayasari Saraswati SUPRATMAN - suryawan, Gusti Bagus Susumu Kanno Syachry Banun Takahiro Osawa Takahiro Osawa Takahiro Osawa Teguh Prayogo Widiastuti Widiastuti Widiati, Ida Ayu Putu Yoga Ibnu Graha Yuli Krisnawati YUNALDI YUNALDI Yuniarti K. Pumpun