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Aquacultura Indonesiana

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Published by Universitas Diponegoro

ISSN : 02160749 EISSN : 24776939 DOI : -

Core Subject : Science,

Earth & Planetary Sciences

Aquacultura Indonesiana (AI) is publishes original and peer-reviewed, English language papers concerned with culture of aquatic plants and animals. Subjects approriate for this journal would include, but not necessarily be limited to, nutrition, diseases, genetics and breeding, physiology, environmental quality, culture system enginering. husbandry practices, and economics and marketing. Fragmentary reports will not be considered for publication; coherent research should be published in a single paper. Preliminary studies, simple case reports, baseline data, parasite host or range extentions, and other such curiosities will not be considered for publication in the journal.

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Articles 6 Documents

Search results for , issue " Vol 18, No 1 (2017)" : 6 Documents clear

Review : Gastropods As A Bioindicator and Biomonitoring Metal Pollution Samsi, Andi Nur; Asaf, Ruzkiah; Sahabuddin, Sahabuddin; Santi, Andi; Wamnebo, Muhammad Ikhsan
Aquacultura Indonesiana Vol 18, No 1 (2017)
Publisher : Indonesian Aquaculture Society (MAI)

Water pollution effect on aquatic organisms and if consumed can affect people's health. These pollutants can be heavy metals such as Cd, Pb, Cr, Hg, and others. Heavy metals have high levels will cause disorders of the kidneys, brain, severe irritation to the skin, can cause diarrhea and even death. The purpose of this paper is to explain physiological mechanisms that occur in the body of gastropods are linked to pollutants in the water environment. Therefore, monitoring the level of pollution a body of water that is alleged to have suffered contamination is very important. Gastropods are one of the aquatic animals (Class) used as bioindicators and biomonitoring for this group of animals has a high ability to accumulate heavy metals in their bodies compared to other aquatic animals. Gastropods is one bioavailability against metal pollution so that it can be used for environmental monitoring. Littoraria scabra, Nassarius reticulatus, Nerita albicilla, Nucella lapillus, Gibberulus gibbosus, Terebralia palustris, and Telescopium telescopiun always use as biomonitoring metal pollution. The main indicator that can be shown by gastropods is declining abundance and body size. Other indicators are as bioavailability of heavy metals in the soft tissues and shells. The ability of the heavy metal deposits is influenced by environmental factors, body size, weight, and gender. Heavy metals can affect hard, thickness, volume, and color of the shell.

Growth Performance of Eucheuma Cotonii by Immersing in Several Macroalgae Extract Cokrowati, Nunik; Setyowati, Dewi Nur’Aeni; Kurnianingsih, Rina
Aquacultura Indonesiana Vol 18, No 1 (2017)
Publisher : Indonesian Aquaculture Society (MAI)

Macro algae in West Nusa Tenggara are potential in types and quantities. One of the types that have only been economically used is seaweed, such as Eucheuma cottonii, Eucheuma spinosum, Eucheuma striatum and Gracillaria sp. In general, all macro algae can be used for various purposes such as pharmacy, agriculture, livestock, and food ingredient. Macro algae commonly have the growth hormones and contain primary and secondary metabolites. The growth hormones in macro algae are called cytokinin, auxin and absicic acids. The objective of this study was to determine the effect of macro algae extracts to the growth of Eucheuma cottonii. This study was carried out in Ekas Bay, Ekas Buana Village, Jerowaru District, of East Lombok, West Nusa Tenggara, between May to September 2016. Eucheuma cottonii was cultivated on the 8 m X 8 m size of longline and 40 ris of load. Spacing between ris was 1 m and distance between clumps was 25 cm. Cultivation was carried out by using Eucheuma cottonii seed with average weight of 100 g and weighing was carried out every 7 days. Macro algae used as extract included Sargassum aquifolium, Ulva sp. and Turbinaria sp. Extracts were put into immersion at 5% concentration. The parameters measured were the absolute growth and Specific Growth Rate of Eucheuma cottonii, and the water quality. The results showed that the addition of macro alga extracts significantly affected the growth of Eucheuma cottonii.

Optimalization of Bioconversion Prosess of Palm Kernel Cake For Production Maggot Hermetia Illucens as A Source of Animal Protein in Fish Farming Bokau, Rietje J.M; Witoko, Pindo
Aquacultura Indonesiana Vol 18, No 1 (2017)
Publisher : Indonesian Aquaculture Society (MAI)

The process of bioconversion of palm kernel cake (PCK) for the production of Black Soldier Fry larva biomass as a fish feed can be improved by fermentation process. The purpose of this research was to determine the amount of biomass production and nutritional content of maggot as a result of bioconversion fermented palm kernel cake (PCK) by using probiotic. PCK used in this research were obtained from one of palm processing industry (PTP VII Lampung). Fermentation process was using microbes (probiotics) amount of 0% (F0), 3% (F3), 4% (F4), and 5% (F5) in 1 liter of water, then it's mixed with PKC to help fermentation process. Each treatment was using 3 replication. The fermentation process was done in a 3 liters volume of bucket covered by perforated black plastic/trash bag to avoid the heat by light and the rainwater. The buckets were prepared, placed and stored in a cool and humid place by using a bamboo/wooden racks. If the media was prepared, Black Soldier Fly (BSF) insect would automatically come and lay its eggs on it.. Observations were made within 2 weeks after the media were prepared and then harvested 3 times during one week. The biomass of harvested maggot were clasified into 3 group of size, they are <1cm, 1-1.5cm, and >1.5cm, then the weight were measured. The result showed that the fermented media did not give any affect for the biomass of maggot, but had an effect on the maggot nutrition. The biomass of maggot in the treatment F0 (control) was not significantly different from treatment F3 (3%) (p>0.05), while the higher dose of probiotic (F4 and F5) were lower than control. The proximate composition of maggot showed that crude protein and fat parameter were significantly different for every stage of fermentation treatment. Treatment F3 has the highest crude protein and significantly different from F0 and F5 (p<0.05), while the fat contents decreasing significantly at higher fermentation dose. Likewise, the total amino acid, in fermentation F3 was significantly higher compared to control and other treatments. Thus, the dose of fermentation (probiotic in water) 3% for the PKC was optimal to produce biomass and nutritional content of maggot.

Assessment of Soybean Meal as Dietary Fishmeal Replacement in Red Sea Bream (Pagrus Major) Juveniles Based on Energy Budget Analysis Sumule, Ophirtus; Sudaryono, Agung; Ishikawa, Manabu; Koshio, Shunsuke
Aquacultura Indonesiana Vol 18, No 1 (2017)
Publisher : Indonesian Aquaculture Society (MAI)

The effects of soybean meal (SBM) on the energy budget of red sea bream Pagrus major juveniles (3.2 g initial wet weight) were determined by supplementing SBM in the diet at 0% (control diet), 16%, 24%, 32% and 39%, with the fishmeal content correspondingly reduced from 55% to 29%. Diets were made isoenergetic and isonitrogenous by changing the lipid and carbohydrate levels. Fish were fed to apparent satiation for 30 days in duplicates per diet (20 fish per replicate). Ammonia excretion and oxygen consumption were continuously measured during the growth trial, whereas digestibility after the termination of growth trial. Feed intake, body weight gain, and specific growth rate of fish increased to a peak at 24% SBM level, which again decreased as the SBM level was further increased. The apparent digestibility of energy was similar in all dietary treatments, while the digestible of dry matter increased with the SBM level. A lower proportion of energy intake as growth at 39% SBM level was attributed to the higher energy intake channeled to fecal ammonia. This study suggested that the inclusion level of SBM in diets for red sea bream juveniles should be is optimal at the inclusion range 24–32%, thus correspondingly replacing the fishmeal content by 24–32%.

Performance of Total Haemocyte Count and Survival Rate The Tiger Prawn Penaeus Monodon Fabricius Juvenile Rearing at High Density Tayibu, Hartinah; La Sennung, La Paturusi; Ratnasari, Ratnasari; Hamal, Rimal; Dahlia, Dahlia; Rustam, Rustam
Aquacultura Indonesiana Vol 18, No 1 (2017)
Publisher : Indonesian Aquaculture Society (MAI)

High density is one of the common consequences of intensive shrimp culture. High density can induce stress on the shrimp. Nonetheless, stress is not always harmful. In limited period, stress can trigger metabolism process and the hormonal system of the body. This study aimed to determine how high-density rearing causes stress on juvenile shrimp. The experiment consisted of three different density treatments, 60, 90 and 120 tiger prawn juveniles/m2 with two different weight groups, 3 to 10 g, and 11 to 16g as test animals. Each treatment with 3 replications, and 2 stocks were provided for treatment A, B, and C respectively (the stock was prepared to substitute the test animals at hemolymph sampling). Total Haemocyte Count (THC) was the main parameter used as a reference in assessing the response of tiger prawn juveniles to hight density. Based on the 3 treatments densities tested, the results showed that THC of the juvenile tiger prawns reared at 3 densities increased up to 24 h observation and decreased at 36 h observation. In fact, THC of the shrimp at the highest rearing density of 120 juveniles/m2 increased, which is one of the alleged treatment of tiger prawn juveniles tried to increase the tiger prawn's body defence. But the decline in THC was observed in the lowest rearing density of 60 shrimps/m2, in which the treatment did not cause stress on the tiger prawns in the lower weight group of 5 to10g (treatment A). In contrast, THC of the tiger prawn in the medium and highest rearing density (treatment B and C) drastically declined due to stress on tiger prawn juvenile and led to the tiger prawn dead. However, it is assumed that the tiger prawn juvenile that can adapt to the stressful condition, stress may become a stimulus that can trigger moulting, which is olso known as an indicator of growth.

Profile of Gonad Development and Spawn Milkfish Broodstock, Chanos chanos Forskall G-1 with Hormonal Implantation Reared in The Controlled Tank Dharma, Tony Setia; Zafran, Zafran
Aquacultura Indonesiana Vol 18, No 1 (2017)
Publisher : Indonesian Aquaculture Society (MAI)

This research was conducted in Institute for Mariculture Research and Development (IMRAD) using on concrete tanks 150 m³. The objective of this research was to know the performance and gonad maturations development and spawn activities of first generation (G-1) broodstock from individual selection. The experiment test of milkfish broodstock with weight size of 3,891.67±344.99 g were reared on tank. Fish were reared at initial density of 60 individuals fish in 150 m³ concrete tanks. The treatments were: with hormone (A) and without hormone (B) implantation. The doze of LHRH-a implant hormone was 50 µg/kg. The broodstock were reared using of standard procedure operational (SOP) for spawning and gonad maturations. The result of the experiment showed that fish with hormone implantation gave the better results in gonad development on stage of reproduction than fish without hormon implantation. The gonad maturations and development on male and female broodstock diameter of oocyte and sperm were 450 µm and positive 2 and 3, respectively. The broodstock was spawn on the continue rear culture in the tank. The frequency of spawning were 8 times (with hormone) and 4 times (without hormone implantation) with total number of egg was 1,660,000 and 500,000 pc, respectively. The quality of eggs were 55-95% for fertilities and index activity survival (SAI) after hatching larvae was 4-5 days.

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