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All Journal HAYATI Journal of Biosciences Jurnal Pengolahan Hasil Perikanan Indonesia JOURNAL OF COASTAL DEVELOPMENT ILMU KELAUTAN: Indonesian Journal of Marine Sciences Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology International Journal of Science and Engineering (IJSE) Journal of Aquaculture Management and Technology Journal of Marine Research Jurnal Kelautan Tropis Omni-Akuatika Jurnal Perikanan Universitas Gadjah Mada Marine Research in Indonesia Aquasains : Jurnal Ilmu Perikanan dan Sumberdaya Perairan e-Jurnal Rekayasa dan Teknologi Budidaya Perairan Sains Akuakultur Tropis : Indonesian Journal of Tropical Aquaculture Aquacultura Indonesiana Scripta Biologica Jurnal Sains Teknologi Akuakultur PENA AKUATIKA : JURNAL ILMIAH PERIKANAN DAN KELAUTAN Pena : Jurnal Ilmu Pengetahuan dan Teknologi TABGHA Jurnal Imparta Ilmu Perikanan Tropis Nusantara Beatitudes: Jurnal Pengabdian Kepada Masyarakat Journal of Fisheries & Marine
Johannes Hutabarat
Department Of Aquaculture, Faculty Of Fisheries And Marine Science, Diponegoro University, Semarang
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Immunology & microbiology Law, Crime, Criminology & Criminal Justice Medicine & Pharmacology Public Health Social Sciences Other

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STABILITY OF LOCAL RAW MATERIALS FOR MUD CRAB FEED DEVELOPMENT Johannes Hutabarat
JOURNAL OF COASTAL DEVELOPMENT Vol 1, No 1 (1997): Volume 1, Number 1, Year 1997
Publisher : JOURNAL OF COASTAL DEVELOPMENT

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (6030.407 KB)

Abstract

The aims of study were to identify the potency and nutritional values of local raw materials available in Central java, and to develop the mud crab feed using selected raw materials for its deffatening culture. The potency level of local raw materials was determined by using secondary data available in relevant technical institution e.g. Agriculture Department, Fisheries Bureau and followed by direct site survey in the production centre of agriculture and fisheries by catch in Central Java, i.e  Pekalongan, Kendal, Semarang, Jepara, Pati and Rembang. Data obtained were analyzed descriptively to determine the resource of the potentials of local raw materials and followed by determining their nutritional values, profile and availability of assential amino acids (EAA) and essential fatty acids (EFA), using standard method available. The results indicated that the local raw materials for protein sources are found in abundance in Central Java throughout the year with relatively cheap price i.e: trash fish, mysid, squid, blood meals, worm-meals and shrimp head-meals (animal protein) and saga, soybeans (plant protein). The protein level of selected raw materials were high (41.15% – 80.35%) and the highest level was found in blood meal and followed by squid, trash fish and shrimp head meals. The selected raw materials, generally contains 10 essential amino acids (Arginine, lysine, histidine, phenylalanine, leucine, isoleucine, methionine, valine, threonine, and trypthophane) and a long chain of EFA (n-3 HUFA) and (n-6 HUFA) which are required by mud crab for their growth. The selected local raw materials are therefore nutritionally suitable for mud crab feed development in Central Java.
Difference in Diet and Water Quality Influencing the Growth of the Newly Introduced Penaeus merguiensis Larva Culture Mostafa Imhmed Ighwerb; Johannes Hutabarat; Ervia Yudiati; Rudhi Pribadi
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 26, No 3 (2021): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ik.ijms.26.3.197-206

Abstract

The water quality found on the surface is usually better than that accumulated at the seabed and more bottomless sea. When recycled, water usually brings many materials along the path, all the way to reaching its end. Water quality varies from place to place, season, and different types of rock and soil it passes through also influences the possessed quality. By employing Penaeus merguiensis larvae produced by the Marine Research Center Hatchery owned by Jepara's government, this study analyzes varying effects in three nominal salinities (28, 32, and 36 ppt) and types of diets (Diet A: 100% live feed; Diet B: 100% FRIPPAK; Diet C: a combination of Diet A and Diet C, 50 % each) and finds the optimum water quality parameters such as dissolved oxygen, pH, and temperature on the growth of the newly introduced Penaeus merguiensis larvae. The results show that two nominals of water salinities (28 and 32 ppt) with Diet A works well, supporting the growth from most Zoea to Postlarvae-1: Zoea-1 at 28 ppt with Diet A; Zoea-2 at 32 ppt with Diet A; Zoea-3 at 32 ppt with Diet A; Mysis-1 at 28 ppt with Diet A; Mysis-2 at 28 ppt with Diet C; Mysis-3 at 28 ppt with Diet A; Postlarva-1 at 28 ppt with Diet A. All shrimp prefers temperature ranging from 31-32.4 °C with dissolved oxygen of 4.9-5.74 ppm and pH 7.0-8.1. 
Natuna Off-Shelf Current (NOC) Vertical Variability and Its Relation to ENSO in the North Natuna Sea Hariyadi Hariyadi; Johannes Hutabarat; Denny Nugroho Sugianto; Muhammad Faiq Marwa Noercholis; Niken Dwi Prasetyarini; Widodo S. Pranowo; Kunarso Kunarso; Parichat Wetchayount; Anindya Wirasatriya
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 26, No 2 (2021): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ik.ijms.26.2.63-70

Abstract

During the northwest monsoon (NWM), southerly flow off the Natuna Islands appeared as the extension of the turning Vietnam coastal jet, known as Natuna off-shelf current (NOC). NOC is generated by the interaction of wind stress and the North Natuna Sea’s bottom topography. The purposes of the present study is to investigate the vertical variability of NOC and its relation to El Niňo Southern Oscillation (ENSO) using Marine Copernicus reanalysis data. The vertical variability refers to the spatial distribution of NOC pattern at the surface layer, thermocline layer, and deep/bottom layer.  in 2014 as representative of normal ENSO condition. To investigate the effect of ENSO, the spatial distribution of NOC in 2011 and 2016 were compared which represent the La Niňa and El Niňo conditions, respectively. The results show that NOC starts to generate at the southeast monsoon season to the transition I season and peaks in the northwest monsoon season. The occurrence of NOC is identified at all depth layers with the weakened NOC at the deep layer. Related to the ENSO effect, La Niňa tends to strengthen NOC while El Niňo tends to weaken NOC. These are releted with the strengthening and weakening northerly wind speed during La Niňa and El Niňo, Respectively. During La Niňa events, the NOC occurs more frequently than during El Niňo. Thus, beside affecting the magnitude of NOC, ENSO also influence the frequency occurrence of NOC.
Pengaruh Salinitas Media Berbeda Terhadap Pertumbuhan Keong Macan (Babylonia spirata L.) Pada Proses Domestikasi (Effect of Different Media Salinity on the growth of Spotted Babylon (Babylonia spirata L.) During Domestication Process) Diana Rachmawati; Johannes Hutabarat; Sutrisno Anggoro
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 17, No 3 (2012): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (109.16 KB) | DOI: 10.14710/ik.ijms.17.3.141-147

Abstract

Proses domestikasi sangat diperlukan dalam upaya optimalisasi budidaya keong macan (Babylonia spirata L., Neogastropoda, Buccinidae), sehingga kondisi optimum dari media yang sesuai dengan kebutuhan hidup (ekofisiologis) diketahui. Dalam media, salinitas merupakan salah satu faktor fisiologis yang berpengaruh terhadap pemanfaatan pakan dan pertumbuhan. Tujuan penelitian adalah mengkaji pengaruh salinitas  media yang berbeda dan salinitas media terbaik terhadap tingkat kerja osmotik, pertumbuhan, kelulushidupan dan efisiensi pemanfaatan pakan keong Macan pada proses domestikasi. Keong Macan diperoleh dari perairan Jepara. Pakan yang diberikan adalah ikan Juwi (Anadontostoma chucunda) sebanyak 5 % bobot biomass/hari. Metode rancangan acak lengkap diterapkan dalam penelitian ini dengan perlakukan media salinitas 27 ppt (hipo-osmotik), 31 ppt (iso-osmotik) dan 35 ppt (heperosmotik). Hasil penelitian menunjukkan bahwa salinitas media yang berbeda pada proses domestikasi berpengaruh sangat nyata (P<0.01) terhadap tingkat kerja osmotik, pertumbuhan, efisiensi pemanfaatan pakan namun tidak berpengaruh nyata (P>0.05) terhadap kelulushidupan keong macan. Media isoosmotik dengan salinitas 31 ppt merupakan media terbaik bagi tingkat kerja osmotik, pertumbuhan,  kelulushidupan dan efisiensi pemanfaatan pakan keong macan. Kualitas air media selama penelitian masih dalam kisaran yang layak bagi domestikasi keong macan.Kata kunci: Keong Macan, Babylonia spirata L., salinitas, domestikasi, tingkat kerja osmotikDomestication process is important factor prior to Spotted Babylon (Babylonia spirata L., Neogastropoda, Buccinidae) culture. The optimum condition of the media in accordance with the necessities of life (eco physiology) spotted Babylon for domestication is not been understood, therefore the present work was aimed to examine the influence of different media salinity on the level of osmotic performance, growth, survival rate and feed efficiency. Spotted Babylon were collected from Jepara waters and were fed with juwi fish (Anadontostoma chucunda) for 5% biomass weight/day. Three salinity medium were applied, ie. Hypo osmotic (27 ppt ), iso osmotic (31 ppt), and hyper osmotic (35 ppt). The result showed that salinity affected very significantly (P<0,01) on the level of osmotic work (TKO), growth, feed utilization efficiency but no effect (P>0,05) on survival rate of Spotted Babylon (B. spirata L .). The isoosmotic media (31 ppt) is the best for osmotic performance, growth, survival rate, and feed utilization efficiency spoted Babylon (B. spirata L .). Water quality media during the study were still within the appropriate range for the domestication of Spotted Babylon (B. spirata L.).Key words: Spotted Babylon, Babylonia spirata L., salinity, domestication, osmotic work
Studi Penyusunan dan Pemetaan Potensi Budidaya Laut di Perairan Kabupaten Rembang Propinsi Jawa Tengah Johannes Hutabarat
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 10, No 4 (2005): Jurnal Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (150.048 KB) | DOI: 10.14710/ik.ijms.10.4.237-244

Abstract

Besarnya potensi perairan pantai yang dimiliki Kabupaten Rembang sangat dimungkinkan untuk dimanfaatkan sebagai daerah pengembangan budidaya laut dengan karakteristik kondisi hidrometeoroseanografis yang bervariasi. Informasi tentang lokasi perairan laut di Kabupaten Rembang yang dapat dimanfaatkan untuk budidaya laut masih sangat terbatas. Oleh karena itu perlu dilakukan kajian dan inventarisasi lokasi yang potensial untuk menetapkanpotensi sumberdaya laut, memetakan dan menetukan lokasi budidaya laut, menyusun rekomendasi lokasi yang potensial, jenis kultivan unggulan, rancang bangun teknologi budidaya yang sesuai dengan kondisi perairan Kabupaten Rembang. Metode yang digunakan metoda survey, analisis potensi perairan pantai dan laut dengan TeknologiPenginderaan Jauh dan Sistem Informasi Geografis, yang dilengkapi dengan survey “Ground Truth” menggunakan GPS. Penentuan titik pengamatan dengan metode simple random sampling, data primer berupa data kualitas perairan hasil pengamatan dan pengukuran langsung di lapangan (Parameter fisika, kimia, biologi dan sumberpencemaran). Data hidrometeoroseanografis yang dikumpulkan di perairan : P. Marongan, P. Gede, P. Gurian, P. Masaran dan perairan antara Jatisari - Sluke di analisis dengan teknik pembobotan dan dibandingkan dengan kepustakaan untuk menetapkan kesesuaian lokasi dengan persyaratan budidaya laut. Sedangkan kesesuaian jeniskultivan dan teknik budidaya di lokasi penelitian ditetapkan dengan menggunakan teknik tumpang susun (overlay) terhadap peta hasil interpretasi citra landsat peta bentuk lahan, peta substrat dan peta kedalaman yang dilengkapi dengan penggunaan kriteria penyesuaian. Hasil kajian ini menunjukkan bahwa lokasi di perairan Rembang yangpotensial untuk kegiatan budidaya laut adalali perairan P. Marongan (60 Ha), P. Gede (37 Ha), P. Masaran (6,9 Ha), P. Gurian (3,8 Ha) dan perairan Jatisari -Sluke (75 km2) Sedangkan jenis kultivan dan metoda budidaya yang cocok digunakan di masing-masing perairan tersebut adalah Rumput laut (Euchema cotonii) dengan metoda “Raft Culture”,Teripang (Holothuria sp.) dengan metoda “Pen Culture”, Kerapu (Ephinephelus sp.), Beronang (Siganus sp.), dan Kakap (Lates calcalifer) dengan metoda Cage Culture (Jaring Apung).Kata kunci : Lokasi perairan potensial, kultivan unggulan dan metoda budidaya lautThere is a high possibility of utilizing and developing marine resources of Rembang waters for marine culture activties based on its hydrometeoroceanographic conditions. However, the information of suitable sites for marine culture activities at Rembangs waters is very limited. This present study was set to investigate the potential sites for developing marine culture including the suitable marine organisms which can be cultured at those sites.Inventarisation and potential analysis was done by survey methods using geographic information system, followed by ground truth using GPS. Water quality data were taken in situ. Hydrometeoroceanographic data were taken from Marongan Island, Gede Island, Gurian, Island, Masaran Island, and waters betweenJatisari and Sluke. Data were analysed by using scoring technique and followed by comparison with data taken from literatures to determine the good sites for marine culture. While in order to determine the suitable organisms was carried out by using overlay technique of several maps including landsat image interpretation, substrate maps, completed by relaed suitable criteria. The results showed that there is high potential of Rembang waters to be developed as marine culture activities sites, i.e. Marongan Island (60 ha), Gede Island (37 ha), Masaran Island (6,9 ha), Gurian Island (3,8 ha) and waters between Jatisari and Sluke (75km2). While the suitable organisms to be cultured are as follows : Sea weed (Euchema cotonii) by using raft culture; Sea Cucumber (Holothuria sp) by using pen culture; Grouper (Ephinephelus sp), Beronang (Siganussp), Kakap (Lates calcalifer) by using cage culture.Key words: potential sites, suitable organsims, marine culture
Efek Ronozyme P dalam Pakan Buatan Terhadap Pemanfaatan Pakan dan Pertumbuhan Ikan Kerapu Macan (Epinephelus fuscoguttatus) Diana Rachmawati; Johannes Hutabarat
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 11, No 4 (2006): Jurnal Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (196.533 KB) | DOI: 10.14710/ik.ijms.11.4.193-200

Abstract

Kendala yang dihadapi dalam penggunaan bahan nabati dalam pakan adalah pemanfaatan pakan tidak maksimal. Hal ini disebabkan karena bahan nabati dalam pakan terutama yang berupa biji-bijian didalamnya terdapat zat anti nutrisi berupa asam fitat. Asam fitat ini sulit dicerna dengan baik oleh ikan kerapu, sehingga dapat mempengaruhi penyerapan nutrien yang akhirnya berpengaruh terhadap pemanfaatan nutrisi pakan dan selanjutnya secara tidak langsung juga dapat mempengaruhi pertumbuhan. Salah satu cara untuk mengatasi masalah tersebut adalah dengan penambahan Ronozyme P yang mengandung enzim fitase ke dalam pakan. Roinozyme P berbentuk butiran yang terbuat dari jamur Peniphora lycii hasil fermentasi dengan jamur Aspergillus oryza. Penelitian ini bertujuan untuk mengetahui pengaruh Ronozyme P dalam pakan buatan terhadap pemanfaatan pakan dan pertumbuhan kerapu macan serta mengetahui dosis Ronozyme P yang baik untuk  pemanfaatan pakan dan pertumbuhan kerapu macan. Metode yang digunakan dalam penelitian ini adalah metode eksperimen yang dilakukan dilaboratorium dengan menggunakan rancangan acak lengkap (RAL) dengan empat perlakuan dan tiga ulangan. Perlakuan yang diberikan adalah penambahan Ronozyme P yang berbeda dalam pakan, yaitu A (0 mg/kg pakan); B (500 mg/kg pakan); C (1000 mg/kg pakan); dan D (1500 mg/kg pakan). Parameter yang diamati adalah pertumbuhan mutlak, laju pertumbuhan harian, pemanfaatan pakan (konversi pakan dan rasio pemanfaatan protein), kelulushidupan dan kualitas air. Data dianalisis dengan analisis ragam (Anova) dan perbedaan antar perlakuan dengan uji wilayah ganda duncan. Penelitian ini di laksanakan pada bulan Agustus-Desember 2005 di Balai Budidaya Air Payau Jepara. Hasil penelitian menunjukkan Ronozyme P memberikan pengaruh yang nyata (p<0,05) terhadap pertumbuhan mutlak, laju  pertumbuhan harian, dan konversi pakan, serta memberikan pengaruh sangat nyata terhadap (p<0,01) rasio pemanfaatan protein. Tetapi tidak memberikan pengaruh nyata (p>0,05) terhadap kelulushidupan. Dosis yang baik untuk pemanfaatan pakan dan pertumbuhan kerapu macan adalah 875-1000 mg/kg pakan.Kata kunci : Ronozyme P, Pertumbuhan, Pemanfaatan pakan, Kerapu macan.One constraint faced using a plant material in diets is food utilization can’t maximal. This matter caused by plant materials in diets especially in the form of cereals contain anti nutritional elements like phytic acid. Thephytic acid is difficult to digested by brown-marbled grouper, so that can be influence the absorbtion of nutrient and utilization of feed nutrition and finally have an effect to growth. The one solution to overcome the problem is addition of Ronozyme P contain phytase enzyme in feed. Ronozyme P in granulated form made of from mushroom Peniphora lycii and fermented by Aspergillus oryza. This research aimed to knoweffect addition of Ronozyme P in artificial feed to feed utilization and growth and to know the best Ronozyme P dose for the best feed utilization and growth of brown-marbled grouper. The research conducted by experimental in laboratory used completely random design with 4 treatments and 3 replicates for each treatment. The treatment is addition of Ronozyme P in feed that are: A (0 mg enzyme/kg feed); B (500 mgenzyme/kg feed); C (1000 mg enzyme/kg feed); and D (1500 mg enzyme/kg feed). The observing parameter are : absolute growth, daily growth rate, feed efficiency (feed conversion and protein efficiency ratio), survival rate and water quality of culture medium. Data analysed by Analysis of Variance (ANOVA)and Duncan Multiple Range Test. This research executed within August-December, 2005 on the Center for Brackishwater Research, Jepara, Central Java. The result showed that Ronozyme P given a significant effect (p<0,05) to absolute growth, daily growth rate, and feed conversion brown-marbled grouper, and given a very significant effect (p<0,01) to protein efficiency ratio. But did not give a significant effect (p>0,05) to survival rate. The best dose of Ronozyme P to feed utilization and growth for brown-marbled grouper are 875-1000 mg /kg feedKey words : phytase enzyme, food utilization, brown-marbled grouper.
Effect of Salinities and Dietary Patterns toward Fullness of Gut and Gut Evacuation Time of the Newly Introduced Penaeus merguiensis Larvae Mostafa Imhmed Ighwerb; Johannes Hutabarat; Ervia Yudiati; Rudhi Pribadi; Widianignsih Widianingsih; Retno Hartati; Abidin Nur II; Arumning T. Fauziah; Jelita Rahma Hidayati
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 26, No 2 (2021): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ik.ijms.26.2.71-78

Abstract

The gut capacity of shrimp larvae is minimal, and their digestion is often challenged by the inevitable fact that they tend to develop slowly during the zoea stage. Many studies approved that the digestive capacity of shrimp larvae could be improved by increasing the retention time of food in the intestine. Gut evacuation time and fullness of the gut are crucial parameters in assessing the growth of shrimp larvae, and the diet as well as  environmental conditions indeed influence the activity of these parameters. Although many species of shrimps have a wide salinity tolerance, more specific research on salinity and its relation to the type of diet is necessary to find the optimum condition supporting the growth of shrimp larvae. By employing Penaeus merguiensis larvae, this study evaluates the effect of three nominal salinities (28, 32, and 36 ppt) and types of diets (Diet A: 100% live feed; Diet B: 100% FRIPPAK; Diet C: a combination of Diet A and Diet C, 50 % each) toward the fullness of gut and gut evacuation time of the newly introduced Penaeus merguiensis larvae culture. The result showed that the longest gut evacuation time and the highest percentage of gut's fullness were found in all Zoea reared with Diet A at salinity 28 and 32 ppt; Zoea-1 at 28 ppt with Diet A; Zoea-2 at 32 ppt with Diet A; Zoea-3 at 32 ppt with Diet A. Longer gut evacuation time would have an impact on the higher percentage of the fullness of gut. The higher fullness of the gut also indicates that the larvae have the best capacity to produce energy and achieve optimum growth.
PERFORMA PERTUMBUHAN DAN PRODUKSI TELUR Oithona similis DENGAN PAKAN FITOPLANKTON BERBEDA PADA SALINITAS MEDIA KULTUR OPTIMUM (Growth Performance And Egg Production of Oithona similis With Different Diet of Phytoplankton Cells in Culture Medium Optimum) Diana Chilmawati; Johannes Hutabarat; Sutrisno Anggoro; Suminto Suminto
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 16, No 1 (2020): SAINTEK PERIKANAN
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (510.515 KB) | DOI: 10.14710/ijfst.16.1.39-44

Abstract

Kondisi optimum media kultur dan diet pakan yang sesuai dengan kebutuhan hidup (ekofisiologis) Oithona similis sangat penting agar dapat tumbuh dan berkembang secara maksimum. Proses bioenergetika dalam upaya pemanfaatan energi pakan untuk pertumbuhan, erat hubungannya dengan proses osmoregulasi organisme air yang dipengaruhi oleh salinitas media kulturnya. Tujuan penelitian ini adalah mengkaji pengaruh perbedaan diet fitoplankton dan menentukan jenis fitoplankton yang tepat yang memberikan performa  pertumbuhan dan produksi telur O. similis terbaik pada kondisi salinitas media kultur yang optimum (19,4 permil). Penelitian ini menggunakan metode eksperimental dengan  Rancangan Acak Lengkap yang terdiri dari 4 perlakuan dengan masing-masing 5 kali ulangan, yaitu: kultur O. Similis dengan diet fitoplankton A. Chlorella vulgaris; B. Nannochloropsis oculata; C. Isochrysis galbana; dan D. Chaetoceros calcitrans. Hasil penelitian menunjukkan bahwa perbedaan diet mikroalga berpengaruh terhadap pertumbuhan dan produksi telur O. similis pada kondisi salinitas media kultur optimum. Pemberian sel diatom Chaetoceros calcitrans memberikan kepadatan total (16,88±0,32 ind./ml), laju pertumbuhan populasi (0,141±0,001/hari) dan produksi telur (24,50±0,58 telur/ind.) O. similis terbaik.
The Potential of Tiger Prawn Fry from Delta Mahakam, East Kalimantan Indonesia Bob Suroso; Johannes Hutabarat; Norma Afiati
International Journal of Science and Engineering Vol 6, No 1 (2014)
Publisher : Chemical Engineering Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4431.106 KB) | DOI: 10.12777/ijse.6.1.43-46

Abstract

Most of the life cycle of tiger prawns were estuarine (Delta Mahakam). In the juvenile stage life in estuarine and the adult stage in marine. The research objective is to assess the potential of the tiger prawn fry catches in the Mahakam Delta, as a source of tiger prawn fry in the Mahakam Delta area farms. Research using interviews and descriptive analysis through monitoring with fishermen. The results showed that the fry tiger prawn from the Delta Mahakam there on the beaches or the edge of the sea where the water is shallow and slightly brackish, as in the Delta Mahakam. Fry can be captured by using rumpon. Tiger prawns fry from Delta Mahakam durability is relatively higher than fry from the hatchery. However, the number and continuity of fry very limited because it depends on the season. Abundance of fry is determined by the number of larvae produced in the wild and their survival is greatly influenced by the availability of food. Doi: 10.12777/ijse.6.1.43-46 [How to cite this article: Suroso, B., Hutabarat, J., and Afiati, N. (2013). The Potential of Tiger Prawn Fry from Delta Mahakam, East Kalimantan Indonesia, International Journal of Science and Engineering, 6(1),43-46. Doi: 10.12777/ijse.6.1.43-46
Penambahan Asam Amino Triptofan Dalam Pakan Terhadap Tingkat Kanibalisme Dan Pertumbuhan Litopenaeus vannamei Diana Rachmawati; Johannes Hutabarat; Ayu Istiana Fiat; Tita Elfitasari; Seto Windarto; Eko Nurcahyo Dewi
Jurnal Kelautan Tropis Vol 24, No 3 (2021): JURNAL KELAUTAN TROPIS
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jkt.v24i3.11723

Abstract

Vannamei shrimp (Litopenaeus vannamei) is one of the leading fishery products of the fisheries sector. The problem that is often found in the failure of vannamei shrimp productions is the high level of mortality due to the nature of cannibalism during molting. One solution to minimize the cannibalism of vannamei shrimp is to provide tryptophan supplements in a feed. Tryptophan is a type of essential amino acid that serves as a precursor for serotonin biosynthesis. This study aims to determine the effect and optimal dose of tryptophan added to feed to reduce cannibalism and growth of vannamei shrimp. The test fish used in this study were vannamei shrimp with an average weight of 0,81 ± 0,26 g/individual.  This study used an experimental method, a completely randomized design (CRD) consisting of 4 treatments and three replications. The test feed used in this study was artificial feed with a protein content of 38% plus tryptophan according to treatments A (0%/kg feed), B (0.75%/kg feed), C (1.5%/kg feed), and D (2.25%/kg feed). The results showed that the addition of Tryptophan in the feed had a noticeable effect (P<0,05) on cannibalism levels, survival, and molting rates but had no significant effect (P>0,05) on absolute weight growth, specific growth rates, efficiency ratios protein and efficiency feed utilization of vannamei shrimp. The best dose of tryptophan addition in feed to lower the rate of vannamei shrimp cannibalism in this study was 2,25%, capable of producing a cannibalism rate of 13,33%. Udang vaname (Litopenaeus vannamei) merupakan salah satu produk perikanan unggulan sektor perikanan. Permasalahan yang sering ditemukan dalam kegagalan produksi udang vaname adalah tingginya tingkat mortalitas karena adanya sifat kanibalisme pada saat terjadi molting. Solusi untuk meminimalisir kanibalisme udang vaname adalah dengan memberi suplemasi asam amino pada pakan, salah satunya adalah triptofan. Triptofan merupakan salah satu jenis asam amino esensial yang berfungsi sebagai prekursor untuk biosintesis serotonin. Penelitian ini bertujuan untuk mengkaji pengaruh dan dosis optimal triptofan yang ditambahkan ke dalam pakan untuk menurunkan tingkat kanibalisme dan pertumbuhan udang vaname. Ikan uji yang digunakan pada penelitian ini adalah udang vaname dengan bobot rata-rata 0,81±0,26 g/ekor. Penelitian ini menggunakan metode eksperimen, rancangan acak lengkap (RAL) yang terdiri atas 4 perlakuan dan 3 kali ulangan. Pakan uji yang digunakan dalam penelitian ini adalah pakan buatan dengan kandungan protein 38% ditambah triptofan sesuai perlakuan yaitu : A (0%/kg pakan), B (0,75%/kg pakan, C (1,5%/kg pakan), dan D (2,25%/kg pakan). Hasil penelitian menunjukkan bahwa penambahan triptofan dalam pakan berpengaruh nyata (P<0,05) terhadap tingkat kanibalisme, kelulushidupan dan tingkat molting, namun tidak berpengaruh nyata (P>0,05) terhadap pertumbuhan bobot mutlak, laju pertumbuhan spesifik, protein efisiensi rasio dan efisiensi pemanfaatan pakan. Dosis terbaik dari pemberian triptofan dalam pakan untuk menurunkan tingkat kanibalisme udang vaname dalam penelitian ini adalah 2,25%, mampu menghasilkan tingkat kanibalisme sebesar 13,33%.
Co-Authors - Masrurotun . Sarjito Abidin Nur II Andi Sagita Anindya Wirasatriya Arumning T. Fauziah Ayu Istiana Fiat Ayudya Wisma Hapsari Aziz Nur Bambang Bambang Argo Wibowo Bella Manik Hapsari Bob Suroso Bosma, Roel Bosma, Roel H. Budi Prayitno Caesa, Genio Cici Ulviyadipura Denny Nugroho Sugianto Diana Chilmawati Diana Chilmawati Diana Rachmawati Diana Rachmawati Dicky Harwanto Eko Nurcahya Dewi Eko Nurcahya Dewi Eko Nurcahya Dewi Eko Nurcahyo Dewi Elsyaday Widhi Cahyono, Elsyaday Widhi Endang Arini Endra Catur Pamungkas Ertris Bergas Taqwdasbriliani Ervia Yudiati Fadityas Desi Aniputri Falstiyan Syahendra, Falstiyan Fatchurochman, Vava Fhibia Jati Fitria Aditama Fritta Wijayanti Hadi Pranggono Haeruddin Haeruddin Hariyadi Hariyadi Hariyadi, Putut Herawati Vivi Endar Hernowo, Ilham Agung Ika Nurul Asriyanti Intan Suriyanti Istiyanto Samidjan Istiyanto Samidjan Ita Widowati Jelita Rahma Hidayati Kunarso Kunarso Lela Nurfitriani Lestari Lakhsmi Widowati Manullang, Corry Yanti Manullang, Corry Yanti Marlia Ulfa Puspitasari Mostafa Imhmed Ighwerb Muhammad Faiq Marwa Noercholis Muhammad Latif Usman Niken Dwi Prasetyarini Norma Afiati Nurmanita Rismaningsih Ocky Karna Radjasa Ocky Karnaradjasa Pane, Pranada Parichat Wetchayount Pinandoyo Pinandoyo Pinandoyo Pinandoyo Pramana, I Nengah Gunaya Pranada Pane Pratama, Arsy Latif Putut Har Riyadi Ratna Widiastuti Ratri, Kartika Sulistyaning Restiana Wisnu Ariyati Retno Hartati Rismaningsih, Nurmanita Ristiawan Agung Nugroho Ristiawan Agung Nugroho Rudhi Pribadi Samsul Rizal Sarjito - Schrama, Johan Seto Windarto Sipayung, Andy Situmeang, Ameria Slamet Budi Prayitno slamet budi prayitno Solly Aryza Sri Rejeki Sri Rejeki Sriwati Sriwati Steven Subandiyono Subandiyono Subekti, Mulat Suhendra Suminto Suminto Suminto Suminto Suminto Suminto Supono . Suradi Wijaya Saputra Suriyanti, Intan Susana E. Ratnawati Susanna Endah Ratnawati Sutrisno Anggoro Tita Elfitasari Titik Susilowati Tony Suhartono Tony Suhartono Tri W. Agustini Tri Winarni Agustini Tri Winarni Agustini Trienes, Yoni Trisnani Dwi Hapsari Tristiana Yunarti Vivi Endar VIVI ENDAR HERAWATI Vivi Endar Herawati Widianingsih Widianingsih Widodo S. Pranowo Widyawati Nurul Fajri Windarto, Seto YS Darmanto