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Jurnal Perikanan Universitas Gadjah Mada
ISSN : 08536384     EISSN : 25025066     DOI : -
Jurnal Perikanan Universitas Gadjah Mada are published to promote a critical review of the various investigative issues of interest in the field of fisheries between the researchers, academics, students and the general public, as a medium for communication, dissemination, and utilization of wider scientific activities.
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Articles 7 Documents
Search results for , issue "Vol 18, No 2 (2016)" : 7 Documents clear
PEMANFAATAN Azolla sp. UNTUK PENURUNAN KANDUNGAN COD DALAM LIMBAH LAUNDRY Ammelia Mentari; Namastra Probosunu; Ratih Ida Adharini
Jurnal Perikanan Universitas Gadjah Mada Vol 18, No 2 (2016)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.25978

Abstract

This research aims to know the ability of Azolla sp. to improve the water quality of laundry wastewater based on COD. This research applied 6 treatments with 3 replications using Completely Randomize Design (CRD) analysis. The treatment consists of P0 (0 gram), P1 (50 gram), P2 (100 gram), P3 (150 gram), and P4 (200 gram) which was placed in a tank that contains 30 liters of laundry wastewater with 50% dilution. The parameters of water quality such as COD, pH, water temperature, and biomass were being observed in every 7 days for 21 days. The result showed that Azolla sp. has the ability to improve the quality of the water from laundry wastewater, especially in lowering the COD level. The results showed that the laundry wastewater’s COD decreases from 133,43 mg/L to 41,52 mg/L. The density and the effective time of Azolla sp. in improving the quality of laundry wastewater is on 7 days of 150 gram treatment or 14 days of 50 gram treatment
STATUS STOK GENUS Rastrelliger spp. SEBAGAI DASAR PENGELOLAAN PERIKANAN (STUDI KASUS PERAIRAN SELAT SUNDA) Wulandari Sarasati; Mennofatria Boer; Sulistiono Sulistiono
Jurnal Perikanan Universitas Gadjah Mada Vol 18, No 2 (2016)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.12424

Abstract

The Rastrelliger spp. is one of the important commodities of the Sunda Strait. This research aimsto analyze the stock status of Rastrelliger spp. Including R. faughni, R. kanagurta and R. brachysoma in Sunda Strait that landed at the Fishery Harbor (PPP) Labuan, Banten. The sampling was conducted in April-August 2015. The data was collected using Random stratified sampling based on the fish size, small, medium and large. The length of the sample was measured and classified into male and female. The data were analyzed using FISAT II ELEFAN I software to present the stock with growth, recruitment, surplus production model, and mortality and rate of exploitation parameters. The results show that R. faughni has L∞ values for females and males respectively of 264.00 mm and 288.69 mm, 293.09 mm and 330.24 mm R. kanagurta and R. brachysoma 272.04 mm and 286.42. Growth Performs Index (GPI) on R. faughni of 4.2758, R. kanagurta of 4.1673, and on R. brachysoma of 4.2076. The growth coefficient of female and male R. faughni was 0.22 and 0.16, R. kanagurta of 0.24 and 0.10, and R. brachysoma 0.20 and 0.13. The level of recruitment of each varies but overall undergoes two peaks during the recruitment period. Maximum Sustainable Yield (MSY) for the Rastrelliger spp. 1,919.02 tons and FMSY (Effort MSY) for 16,766 trips. Furthermore, the mortality rate of arrest (F) R. faughni amounted to 14.53, R. kanagurta 9.43, and R. brachysoma 1.74. The estimation of stock status has never been detached from the exploitation rate. The rate of exploitation for R. faughni, and that is equal to 0.98, R. kanagurta of 0.98, and R. brachysoma 0.85. Judging from the rate of exploitation can be expected the three fish of the Rastrelliger spp. In the Sunda Strait has been over exploited because it has exceeded the limits of optimum exploitation rate.
PRODUKSI DAN APLIKASI VAKSIN DNA Streptococcus iniae UNTUK MENINGKATKAN IMUNITAS NILA (Oreochromis niloticus) Sutanti Sutanti; Novi Megawati; Sugiyo H. Pranoto; Ratu Siti Aliah
Jurnal Perikanan Universitas Gadjah Mada Vol 18, No 2 (2016)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.13049

Abstract

DNA vaccine Streptococcus iniae is a third generation of vaccines based on the gene encoding a vaccine antigen. Pgm is DNA-binding protein that activates expression of several important virulence gene, including those encoding polysaccharide capsule. The pgm gene controlled by MBA promoter has constructed successfully as a candidate of DNA vaccine to against S. iniae infection in Nile Tilapia. The goals of this study were to production and application of DNA Vaccine S. iniae to increase the nile tilapia immunity.  Vaccine production was using plasmid isolation method from Escherichia coli dH5α containing pMBA-pgm. Vaccine verification was was accomplished by PCR using pgm gene S. iniae Fstrep and Rstrep specific primers, which revealed the 1,713 bp PCR product. Application of DNA vaccine was using 25, 50, 75, and 100ng/ml dosage with intraperitonial injection method .The challenge test was using 108 cfu/ml density of S. iniae. Observation test parameter were survival rate, relative percent survival, mean time to death, pgm gene, and organ histology such as liver, eyes, brain, spleen and kidney. Vaccine production was succeed using plasmid isolation method and containing pgm gene revealed 1713bp. the application of DNA vaccine was optimum at 50ng/ml dosage with SR value 96.667%, RPS value 88,461% and MTD value 4,6 days. The eyes histology shows opacity and exopthalmia, the other organ such as liver, spleen and kidney was necrosis. The DNA vaccine was optimum at 50ng/ml dosage.  
PENERAPAN CARA BUDIDAYA IKAN YANG BAIK PADA PEMBESARAN UDANG VANAME (Litopenaeus vannamei) DI PESISIR DAERAH ISTIMEWA YOGYAKARTA Lucky Restyan Nugroho; Sukardi Sukardi; Bambang Triyatmo
Jurnal Perikanan Universitas Gadjah Mada Vol 18, No 2 (2016)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.12549

Abstract

This study aims to apply a good fish farming methods and determine factors that influence development the vaname shrimp (Litopenaeus vannamei) in the coast of Yogyakarta Special Region. This research also aims to find out an applicable technology of shrimp aquaculture for fish farmers in the coastal area of Special Region of Yogyakarta. The basic method used in this research is descriptive research with research instrument in the form of a questionnaire. The descriptive research aims to provide a picture of a society, a particular group of people or a picture of a symptom. Data collection techniques are conducted by interviews and structured observation to obtain a more detailed picture of a phenomenon. The location of the research is determined by purposive sampling, focusing on Sidorejo, Banaran, Galur, Kulon Progo, Kuwaru and Ngentak, Poncosari, Srandakan, Bantul. The reason for taking 3 areas is because as the center of production of shrimp vaname first and the longest operates in the coastal area ofSpecial Region of Yogyakarta. Respondents were determined by proportionate random sampling from 3 specified areas. This research took place from June 18, 2015, to July 12, 2015. The results showed the application of the good fish farming method on the activity of enlargement of shrimp vaname (L. vannamei) on the coast of Special Region of Yogyakarta covers 10 parameters. These ten parameters include site selection; determination of construction layout and design; selection of cultivation containers; biosecurity; selection of fish seed (shrimp); use of fish feed (shrimp); use of probiotics; use of disinfectants; harvesting method and harvesting equipment. Application of good fish farming method at vaname shrimp (L. vannamei) aquaculture development in the coast of Yogyakarta Special Region averaged at 62.24%. Factors that influence the application of good fish farming in the shrimp aquaculture development activities are the existence of communication and socialization services on the technical methods for the shrimp aquaculture by employees of feed and probiotics companies. Counseling (communication and socialization), verification (recording) and control in the form of certification has not been done by the Department of Marine and Fisheries of Indonesia. The technology of vaname shrimp farming (L. vannamei) applied by farmers in the coast of Yogyakarta Special Region is semi-intensive technology.
ANALISIS ANTIBAKTERI EKSTRAK ETANOL SIPUT GONGGONG (Strombus canarium) TERHADAP BAKTERI PATOGEN Dessy Yoswaty; Zulkifli Zulkifli
Jurnal Perikanan Universitas Gadjah Mada Vol 18, No 2 (2016)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.10346

Abstract

The study aims to analyze the use of antibacterial ethanol extract of gonggong snail (Strombus canarium) against pathogenic bacteria and analyzing bioactive compounds in gonggong snails for the development of marine aquaculture. The research method is an experimental method, performed in vitro, using a completelyrandomized design (CRD) with three replications. The subjects of research that pathogenic bacteria (Vibrio sp., C. perfringens, and Aeromonas sp.). The object of research is D1 gonggong snail extract 12.5%; D2 gongong snail extract 25%; D3 gonggong snail extract 50%; C4 gonggong snail extract 100%, ethanol D5 and D6 amosiklav discs (antibiotic chloramphenicol). Phytochemical screening test that alkaloids, saponins, flavonoids, steroids, and triterpenoids) from the ethanol extract of the gonggong snail. Data were analyzed by ANOVA test to determine the significance of the difference in diameter between the various treatments inhibitory region. The results showed that as many as 20 of the gonggong snail with morphometric body length size range of between 43.9 to 56.0 mm, the average length of 52.74 mm and a total weight of 16.21 grams on average. Results of research ethanol extract of gonggong snail is treated discs amoxiclav have inhibition (clear zone) highs against the bacterium Vibrio sp. (diameter 1.80 to 12.40 mm), A. hydrophila (diameter 4.78 to 21.37 mm) and C. perfringens (diameter 1.50 to 6.80 mm). Class of bioactive compounds of alkaloids and saponins identified in the ethanol extract of gonggong snail and class of bioactive compounds of flavanoid, steroids, and triterpenoids is not identified in the ethanol extract of gonggong snails. The results of the measurement of environmental quality parameters in waters around the coast of Bintan Island Village Senggarang still in good condition and has not been contaminated. This enables to support life gonggong snail (S. canarium). The ethanol extract of gonggong snails has the antibacterial activity that can be used to overcome the attacks of pathogenic bacteria in the development of marine aquaculture.
ISOLASI DAN IDENTIFIKASI BAKTERI Aeromonas sp. DARI LELE DUMBO (Clarias sp.) DI KABUPATEN NGAWI Sri Rejeki; Triyanto Triyanto; Murwantoko Murwantoko
Jurnal Perikanan Universitas Gadjah Mada Vol 18, No 2 (2016)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.26917

Abstract

African catfish (Clarias sp.) is one of important freshwater fish which prefer consumed by people due to many advantages. Aeromonas sp. bacteria are dangerous patogen for freshwater fishes. This objective of the research was to isolate, identify and determine pathogenicity of Aeromonas sp. bacteria from African catfish from District Ngawi. The samples of catfish with 20 - 25 cm length showing clinical signs disease were obtained from three sub districts. Bacteria were isolated from kidney and inoculated into GSP medium. Characterization and identification through morphology of bacterial colonies, cells and biochemical test. Postulate Koch was conducted to verify abaility to couse disease. Pathogenicity was analyzed by determination of value of Lethal Dosage-50 on catfish on 7 - 9 cm length. The result showed that the disease symptoms of fish infected by the bacteria were skin ulcer, abdominal swelling and kidney damage. Fifteen bacterial isolates were collected which five, six and four isolates were from Kecamatan Karang Jati, Geneng dan Paron.sub-district respectively. The result showed 12 isolates (GKJ1, GKJ3, GKJ4, GGN1, GGN2, GGN3, GGN4, GGN5, GGN6, GPR2, GPR3 and GPR4) were identified as Aeromonas hydrophila. Three isolates (GKJ2, GKJ5 and GPR1) were identified as A. salmonicida. Isolate of A. hydrophila GKJ1, GKJ4, GGN2, GGN5, GPR2 and GPR4 were virulent to African catfish with LD50 values of 1,55 x 105, 3,89 x 105, 7,24 x 105, 2,39 x 105, 6,61 x 104 and 1,95 x 104 cfu/fish.
SEBARAN LOKASI PENELURAN PENYU HIJAU (Chelonia mydas) DI PULAU SANGALAKI KEPULAUAN DERAWAN KABUPATEN BERAU Andi Ibrahim; Djumanto Djumanto; Namastra Probosunu
Jurnal Perikanan Universitas Gadjah Mada Vol 18, No 2 (2016)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.26214

Abstract

Populasi penyu hijau (Chelonia mydas) yang bertelur di kawasan konservasi kepulauan Derawan semakin menurun disebabkan oleh berbagai faktor. Penelitian ini bertujuan untuk mengetahui jumlah peneluran tiap induk penyu hijau dan korelasinya terhadap naungan, lebar pantai berpasir dan fase bulan. Penelitian ini dilakukan pada tanggal 24 Januari–31 Maret 2015 berlokasi di Pulau Sangalaki. Pengamatan induk bertelur dilakukan dengan menyusur pantai tiap malam untuk menemukan induk yang sedang bertelur. Pada induk yang sudah bertelur, maka sarangnya diberi tanda di lokasi tempat bertelur. Pada hari berikutnya dilakukan penggalian sarang, pengambilan telur, dan pengukuran kondisi lingkungan tempat peneluran. Data yang dikumpulkan adalah jumlah telur tiap sarang dan kondisi lingkungan tempat peneluran. Kondisi lingkungan yang diukur meliputi kedalaman sarang, suhu substrat, jarak sarang terhadap naungan dan garis pantai saat surut terendah. Analisis data dilakukan secara deskriptif terhadap jumlah telur dan parameter lingkungan. Hasil penelitian menunjukkan rerata jumlah telur tiap sarang sebanyak 97 butir dengan kisaran 45–127 butir, ukuran panjang karapas 96 cm dengan kisaran 86-107 cm, rerata kedalaman sarang 73 cm dengan kisaran 56-87 cm. Penyu yang bertelur semakin banyak akan menggali sarang semakin dalam, namun tidak ada korelasi antara panjang karapas dengan jumlah telur. Jumlah rerata induk penyu hijau yang bertelur di Pulau Sangalaki adalah 486 ekor/bulan dengan kisaran 168–1085 ekor/bulan. Musim barat dan timur mempengaruhi frekuensi peneluran. Frekuensi peneluran terjadi sepanjang tahun dan frekuensi peneluran paling tinggi terjadi pada bulan Agustus yang bertepatan dengan puncak musim Timur. Frekuensi peneluran pada musim Timur empat kali lebih banyak daripada saat musim Barat. Frekuensi pendaratan penyu hijau tidak dipengaruhi oleh fase bulan. Berdasarkan lokasi penyu hijau bertelur, pantai yang banyak dipilih untuk lokasi bertelur terdapat di sebelah barat laut, timur laut dan selatan Pulau Sangalaki. Sarang penyu hijau lebih banyak ditemukan pada daerah naungan vegetasi (64%) daripada daerah pasir terbuka (36%).

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