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Indonesian Aquaculture Journal

iaj
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Published by Kementerian Kelautan dan Perikanan RI

ISSN : 02150883 EISSN : 25026577 DOI : -

Core Subject : Science, Agriculture,

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

Indonesian Aquaculture Journal is a peer-reviewed and open access journal based in Indonesia that globally/internationally accepts and publishes scientific articles in the field of aquaculture. The journal is hosted and managed by the Center for Fisheries Research, Indonesian Ministry of Marine Affairs and Fisheries and serving as a scientific platform to share research information in and contribute to the development of various disciplines of aquaculture including genetics, reproduction, nutrition and feed, fish health and diseases, engineering, and environmental assessment.

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Articles 334 Documents

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SEX DIFFERENTIATION AND GROWTH PERFORMANCE TRIALS OF TWO GENOTYPES OF TILAPIA ADMINISTERED WITH ANDROGENIC HORMONE Didik Ariyanto; Komar Sumantadinata; Agus Oman Sudrajat
Indonesian Aquaculture Journal Vol 5, No 2 (2010): (December 2010)
Publisher : Center for Fisheries Research, Agency for Marine and Fisheries Research and Human Resource

The aim of this study was to know the effect of dietary administration of androgenic hormone methyltestosterone on two sex genotypes of Nile tilapia i.e. XX and XY genotype, especially to sex ratio, growth rate, survival rate, food conversion ratio and harvest yield. XX genotype was obtained from XX male matted with XX normal female, and XY genotype was obtained from YY super-male matted with XX normal female. Methyltestosterone was administered seven days after larvae hatching for 28 days. After that, the fish were reared in hapas for 60 days and then placed in growout ponds for 120 days period. As check population, mixed sex genotype was used consisting of 50% XX genotype and 50% XY genotype. The result showed that dietary administration of methyltestosterone in XX genotype significantly increased male proportion about 82.42%, compared with control XX population (7.55%). The same treatment in genotype XY did not significantly increase the proportion of male (85.13%), compared with control XY population (79.81%). In grow-out ponds, all male population (XY genotype and sex reversed from XX genotype) have better growth rate than all female and mixed sex populations. Dietary administration of methyltestosterone in both of XX and XY genotypes increased growth rate of these populations resulting in the increased of total biomass at harvest time.

REPRODUCTIVE ASPECTS OF CULTURED HUMPBACK GROUPER (Cromileptes altivelis) FOR SUPPORTING SEED PRODUCTION Sari Budi Moria Sembiring; John Harianto Hutapea; Ahmad Muzaki; Ida Komang Wardana; Ni Wayan Widya Astuti; Retno Andamari
Indonesian Aquaculture Journal Vol 9, No 1 (2014): (June 2014)
Publisher : Center for Fisheries Research, Agency for Marine and Fisheries Research and Human Resource

Humpback grouper (Cromileptes altivelis) has been successfully spawned in 2000 by IMRAD (Institute of Mariculture Research and Development) and there are already the third generation (F3) currently. The reproductive aspects need to be studied to support the success of seed production. Humpback grouper reared in floating cage (F1 and F3) had matured (gonad stage 4) while F2 fish reared in concrete tanks has spawned. Gonadal maturity stage of 38 fishes from first generation (F1) and 35 fishes from the third generation were observed in June 2013 and compared to gonadal maturity stage of 18 fishes from the second generation observed in June 2009. Samples were measured in total length and body weight and gonads were taken for histology preparation to determine gonadal maturity stage and the sex. From the histological observation of the gonads, it showed that all female humpback grouper were in early maturity stage (stage I and II) with gonadal maturity index between 0.12% and 5.45%. Further, it was observed that the same gonad was found in different maturity stage and concluded that humpback groupers were multiple spawners (asynchronous). By determining gonadal maturity level, it was also known the minimum size for grouper ready to spawn.

FATTY ACID PROFILES OF CYCLOPOID COPEPOD NAUPLII Apocyclops panamensis AND THE EFFECTS OF SALINITY CHANGE Gede S. Sumiarsa; Ronald P. Phelps
Indonesian Aquaculture Journal Vol 2, No 2 (2007): (December 2007)
Publisher : Center for Fisheries Research, Agency for Marine and Fisheries Research and Human Resource

Lipid and fatty acid profiles were described for copepod nauplii Apocy clops panamensis from fertilized brackish water ponds, and after being acclimated to fullsea water salinity. Mean total lipid content of copepod nauplii collected from ponds fertilized with inorganic fertilizer combined either with alfalfa meal, rice bran, wheat bran, and a combination of these fertilizers ranged from 5.66 ± 0.15 to 7.76% ± 0.27%. Non-polar (neutral) lipid fraction of pond copepod nauplii was a significantly higher percentage of the total lipid content (74.5 ± 1.8 - 93.5% ± 1.0%) compared to those of polar lipid (6.5 ± 1.0 - 21.3% ± 1.8%) (P= 0.000). DHA/EPA ratio in neutral lipids ranged from 1.8 ± 0.2 - 2.0 ± 0.1 with no significant differences in three fertilization regimes. DHA was 27.5% ± 0.56% of the neutral lipids and EPA 14.8% ± 0.8%. Acclimation of copepod nauplii for six hours from brackish to full-sea water salinity reduced their lipid content and individual dry weight significantly. Mean total lipid content was reduced 44.2%, non-polar lipid was reduced 46.9% and polar lipid was reduced 24.4%.Acclimation altered the DHA/EPA ratio, in the neutral fraction the ratio increased 26.3% but in the polar fraction it decreased 25%.

EFFECT OF TEMPERATURE AND LIGHT ON THE PHOTOSYNTHESIS AS MEASURED BY CHLOROPHYLL FLUORESCENCE OF CULTURED Kappaphycus sp. (SAKOL STRAIN) FROM INDONESIA Lidemen Lidemen; Asda Laining; George N Nishihara; Ryuta Terada
Indonesian Aquaculture Journal Vol 8, No 2 (2013): (December 2013)
Publisher : Center for Fisheries Research, Agency for Marine and Fisheries Research and Human Resource

Photosynthetic performance of carrageenophyte (Solieriaceae; Rhodophyta) cultured in Indonesia, Kappaphycus sp. (Sakol strain), was investigated at various temperature and light conditions related to their cultivation performance. A “pulse-amplitude modulatedchlorophyll fluorometer” (Diving-PAM) was used to generate a rapid light curves (RLCs) to provide estimates relative electron transport rates (rETR) for over 10 temperatures (i.e., 16oC to 34oC) and at nine photosynthetic active radiation (PAR) levels, which ranged from 0 to 1,000 mol photons m-2 s-1. The initial slope (α), photo-inhibition coefficient (β), and the coefficient of maximum photosynthesis assuming no photo-inhibition (γ) is calculated by fitting the RLCs on a nonlinear model by using a two-level hierarchical Bayesian model. The experimental results showed that Kappaphycus sp. required temperatures ranging from 26oC to 34oC to maintain their high levels of photosynthetic activity. Saturating irradiace (Ek) at the temperature range occured ranging from 120 to 150 μmol photons m-2 s-1. The model equation that have been derived from this series experiment can be used to determine the requirement of temperature and light intensity (irradiance) of any seaweed species.

NON-CLOTTING HAEMOLYMPH OF WSSV-INFECTED SHRIMP: IS IT A FACTOR IN INFECTION PROCESSES? Coco Kokarkin Soetrisno
Indonesian Aquaculture Journal Vol 4, No 2 (2009): (December 2009)
Publisher : Center for Fisheries Research, Agency for Marine and Fisheries Research and Human Resource

White spot syndrome virus is recognized as the most prominent pathogen of penaeid shrimp and has been affecting this shrimp farming industry around the world. The virus may reduce the shrimp’s immune response and alter enzymatic and biochemical composition of tissues. Similar to other environmental stressed or other pathogeninfected shrimp, in late stages of WSSV infection, shrimp will fail to clot the haemolymph, so any minor injury will lead to increased haemolyph loss. A series of experiments to determine the effect of non-clotting haemolymph on WSSV infection were carried out in controlled facilities in Indonesia. The preliminary test showed that normal clotting time was 13.3 seconds while WSSV-injected shrimp mostly failed to clot their haemolymph 16 hours post infection (hpi). Some other clinical signs such as abnormal swimming, red discoloration, white spots and mortality were consistent with those observed by previous studies. Three shrimp species: banana shrimp (P. merguiensis) 9 g , white leg shrimp (P. vannamei) 7 g and the tiger shrimp (P. monodon) 16.5 g were water-borne-challenged with non-clotting, WSSV-infected haemolymph (NCH) from tiger shrimp donor in duplicate tanks each with 12 shrimp. The control were tiger shrimps fed with WSSV-infected tissue at the rate of 40% of bodyweight (BW) and other tiger shrimps were used as negative controls fed with commercial feed only.The study revealed that NCH dosages of 1.46%; 2.03%; and 2.06% (v/v) for eachspecies were sufficient to infect and kill all shrimps in less than two days comparedto eight days for the shrimps fed on infected tissue. The WSSV in non-clottedhaemolymph eventuallyattaches into the living tissues of healthy shrimp. This modeof infection is likely more difficult to control by the ordinary fine mesh screeningmethod.

Dietary Methionine Requirement for Growth of Juvenile Humpback Grouper (Cromileptes altivelis) Nyoman Adiasmara Giri; Ketut Suwirya; Muhammad Marzuqi
Indonesian Aquaculture Journal Vol 1, No 2 (2006): (December 2006)
Publisher : Center for Fisheries Research, Agency for Marine and Fisheries Research and Human Resource

An experiment to find out amino acid methionine requirement for growth of juvenile humpback grouper has been conducted in 18 polycarbonate 100 L tanks. Each tank was equipped with flow-through water system. Twelve juveniles of humpback grouper (5.6 ± 0.7 g each) were randomly selected and stocked in each tank. Juveniles humpback grouper for the experiment were purchased from back yard hatchery in Gondol. Fish fed test diets twice everyday at satiation level for 49 days. Test diets were prepared as dry pellet with casein and fish meal as the intact protein sources, supplemented with the mixture of crystalline L-amino acids to correspond to the amino acid pattern found in the whole body protein of the juvenile humpback grouper, except methionine. Basal diet (diet-1) containing 0.86% methionine was supplied from casein and fish meal. Graded level (0.3%) of L-methionine was added to the basal diet to get the final methionine level in each test diet of 0.86%, 1.16%, 1.46%, 1.76%, 2.06%, and 2.36 %. The experiment was designed according to completely random design (CRD) with 6 treatments (methionine levels) and three replicates for each treatment. Result of the experiment showed that dietary methionine content influenced final weight, weight gain, specific growth rate, feed efficiency, protein retention, and body protein content of juvenile humpback grouper. Optimum dietary methionine for juvenile humpback grouper was calculated using broken line regression analysis. Optimum dietary methionine requirement for growth of juvenile humpback grouper was 1.18% (2.41% of dietary protein) and 1.16% (2.37% of dietary protein) based on weight gain data and feed efficiency, respectively.

ULTRASTRUCTURAL ANALYSIS OF GRUNT FIN (GF) CELLS TREATED WITH RED SEA BREAM IRIDOVIRUS (RSIV; family Iridoviridae, genus Megalocytivirus) IN COMBINATIONS WITH INTERFERONS AND SPLENIC SUBSTANCES Ketut Mahardika; Teruo Miyazaki
Indonesian Aquaculture Journal Vol 5, No 1 (2010): (June 2010)
Publisher : Center for Fisheries Research, Agency for Marine and Fisheries Research and Human Resource

The genus Megalocytivirus in the family of Iridoviridae encompasses isolate of red sea bream iridovirus (RSIV). In the present study, grunt fin (GF) cells were treated with red sea bream iridovirus (RSIV) in combinations with interferons (IFNs) and splenic substances. The viral titer in the combination with primary splenic substance was higher than the other combinations of 10-1 and 10-2 diluted splenic substances, and the positive control. The viral titer was not decreased by all combinations with recombinant murine interferon-α (rMuIFN-α), recombinant murine IFN-β (rMuIFN-β), and recombinant feline interferon-ω (rFeIFN-ω). Electron microscopy revealed inclusion body bearing cells (IBCs) and enlarged cells allowing virus propagation within the intracytoplasmic virus assembly site (VAS). Most were enlarged cells. These enlarged cells were divided into three cell types. Cells of Type II, which contained many mature virions within the VAS, were numerous in number in all treated cells. Cells of Type I allowing assembly of few virions and cells of Type III containing many immature viral particles were rather fewer in number. Their percentage was almost the same in all combinations with the splenic substances and IFNs. These results determined in in vitro treatment with IFNs did not prevent viral replication of RSIV, as well as the splenic substances which were derived from the RSIV-infected spleen of red sea bream did not contain any factors to disturb RSIV replication.

IDENTIFICATION OF SNP SPESIFIC MARKER FOR CRUSTACEAN HYPERGLYCEMIC HORMONE GENE: A SOMATIC GROWTH-RELATED IN GIANT FRESHWATER PRAWN (Macrobrachium rosenbergii) Asep Sopian; Alimuddin Alimuddin; Imron Imron; Harry Krettiawan; Fajar Anggraeni; Desy Nurul Astuti
Indonesian Aquaculture Journal Vol 12, No 1 (2017): (June 2017)
Publisher : Center for Fisheries Research, Agency for Marine and Fisheries Research and Human Resource

High size variation of giant freshwater prawn was found in harvest and resulting in low productivity. Marker assisted selection may be useful to generate broodstock that produces progeny with high growth and homogeneity. This study was conducted to obtain growth related molecular marker in giant freshwater prawn. Genomic DNA was extracted from swimming leg (pleiopods) of 10 giant freshwater prawns fifth Generation for existence of SNP identification, consisted of 5 fast growth (FG) and 5 slow growth (SG). While for SNP confirmation and resolving power of specific primer studies. The pleiopods sample was taken from six generation of 201 giant freshwater prawns, consisted of 129 fast-growth (FG) with 16.06 ± 2.48 g body weight and 72 slow-growth (SG) with 6.05 ± 0.90 g body weight. Oligonucleotide primers were designed according to Gene Bank database of crustacean hyperglycemic hormone (CHH) gene sequence. The amplified DNA fragment was then sequenced. The results of sequencing showed there was one base different in nucleotides of FG and SG prawns. Six set of primers were designed based on those CH gene sequence. PCR analysis resulted one set of primers which showed a specific amplification product of 280 bp for growth. The result of sequence analysis using the basic local alignment search tools showed that the nucleotide sequence of those PCR products had similarity of 99%-100% with CHH gen of M. rosenbergii. Thus, a candidate of growth related molecular marker have been identified for giant freshwater prawn.

CARBON TO NITROGEN RATIO AND NITROGENOUS WASTE ACCUMULATION IN THE INTENSIVE CATFISH (Clarias gariepinus) CULTURE Bambang Gunadi; Enang Harris; Eddy Supriyono; Sukenda Sukenda; Tatag Budiardi
Indonesian Aquaculture Journal Vol 6, No 1 (2011): (June 2011)
Publisher : Center for Fisheries Research, Agency for Marine and Fisheries Research and Human Resource

This experiment was carried out to determine the optimum C/N ratio for heterotrophic bacteria (biofloc) growth in order to control nitrogenous waste accumulation in the catfish (Clarias gariepinus) culture. Twenty fish with an initial individual size of about 50 g were stocked in fiberglass tanks which were filled with 200 L of water. Fish were fed with commercial floating fish feed with a protein level of 31%-33% (manufacturer label). The daily feeding rate was 2.5% of the fish biomass. The inoculation of commercial Bacillus sp. isolates was applied in the first day of the experiment after fish stocking in order to obtain a bacterial density in water of 106 cfu/L. Molases was suplemented daily to the tanks to adjust C/N ratio in water. Four C/N ratios, i.e. 0, 7, 14, and 21, were applied as treatments in this experiment. The results showed that molasses suplementation up to C/N ratio 14 to 21 were able to support the growth of heterotrophic bacteria and to inhibit the accumulation of total ammonia nitrogen (TAN) and nitrite in water therefore increase water quality for better growth of cultured catfish.

THE POTENTIAL OF EXTRACT OF LEAVES AND FLOWERS OF Lantana camara Linn. AS AN ANTIBACTERIAL FOR CATFISH (Clarias gariepinus) INFECTED BY Aeromonas hydrophila Indriyani Nur; Afiyfah Fitriani; Asnani Asnani
Indonesian Aquaculture Journal Vol 4, No 1 (2009): (June 2009)
Publisher : Center for Fisheries Research, Agency for Marine and Fisheries Research and Human Resource

Freshwater catfish culture has been hampered by bacterial diseases. One of the agents of the bacterial disease is Motile Aeromonas Septicemia (MAS). The application of synthetic antibiotics has had some disadvantages such as bacterial resistance and undegradable in water. One of the potential antibacterial herbs is Lantana camara. Information of Lantana as an antibacterial on catfish is still limited. Therefore, the experiment of utilization of Lantana as an antibacterial for catfish should be conducted. The experiment was carried out to evaluate the potential of Lantana extract as an antibacterial of A. hydrophila for catfish. The completely randomized design was applied consisting of four treatments using two parts of the plant, leaves and flowers. The treatments were: A = 1,000 ppm of leaves; B = 2,000 ppm of leaves; C = 1,000 ppm of flowers; D = 2,000 ppm of flowers), and control. Lantana extracts were diluted into each culture media which had been infected with A. hydrophila. Several factors were observed in this experiment such as prevalence with of MAS disease, survival rate, percentage of haematocrites and total of leukocytes of fish blood. The results showed that the fish treated with 2,000 ppm of flowers extract had a lower in prevalence of MAS disease and higher in survival rate than those treated with 1,000 ppm; 2,000 ppm of leaves; and 1,000 ppm of flowers, respectively. However, percentage of haematocrytes and total of leucocytes was not influenced by the extracts from different parts of Lantana plant. In conclusion, 2,000 ppm of Lantana flowers extract might be useful as an antibacterial of A. hydrophila for catfish culture.

Page 16 of 34 | Total Record : 334

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Ofan Bosman

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Ofan Bosman

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