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INDONESIA
Aquasains : Jurnal Ilmu Perikanan dan Sumberdaya Perairan
Published by Universitas Lampung
ISSN : 2301816X     EISSN : 25797638     DOI : -
Core Subject : Education,
Other
Arjuna Subject : -
Articles 6 Documents
 1 
Search results for , issue "Vol 5, No 2 (2017)" : 6 Documents clear
STUDY OF SUITABILITY AND ENVIRONMENTAL CARRYING CAPACITY FOR BARRAMUNDI (Lates calcarifer. Bloch) CULTURE IN WATERS OF LEMUKUTAN ISLAND AND PENATA BESAR ISLAND, BENGKAYANG REGION, WEST KALIMANTAN Shubhi, Muhammad Zamhar Auli; Kusumadewi, Yohana S; Suswati, Denah
AQUASAINS Vol 5, No 2 (2017)
Publisher : Jurusan Perikanan dan Kelautan

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Abstract

The aim of this research are to study location suitability for developing Asian Seabass culture with floating cage culture system based on carrying capacity at Lemukutan Island and Penata Besar Island. The methods of this research include : field survey for assessing the biophysics characteristic of Lemukutan and Penata Besar Island, Geographycal Information System for suitability analyze and carrying capacity analyze which compare to Kepmen LH No. 51 Years 2004. The results indicated that all the water quality parameters mostly good and suitable to support Asian Seabass culture. GIS results indicated that 1.564 Ha can be developed for Asian Seabass culture on the floating net cage, or arround 14,44% from the total 10.830,7 Ha with depth about more than 6 metres and less than 25 metres. Limited factor are sheltered area from the wave, wind and storm, current rate are generally more than 0,6 m/s and depth water some less than 6 m and more than 25 m. 
ANALYSIS OF DIFFERENT NATURAL FEED CONSUPMTION ON GROWTH AND SURVIVAL RATE OF EEL (Monoptherus albus) IN CLEAR WATER SYSTEM Vivi Endar Herawati; Ristiawan Agung Nugroho; Tristiana Yunarti; Trisnani Dwi Hapsari; Pinandoyo Pinandoyo; Johannes Hutabarat
AQUASAINS Vol 5, No 2 (2017)
Publisher : Jurusan Perikanan dan Kelautan

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Abstract

This study used an experimental method with Completely Randomized Design4 treatment 3 replication The results showed that the giving of various types of feed gave significant effect (P <0,05) to EPP and RGR but not significant (P> 0,05) to PER and survival rate. The feed that can increase EPP and RGR is the silk worm and snail. The feed of silk worm and snail can produce EPP of 7.33% and 5.75% while RGR value is 2.24% / day and 1.73% / day. The feed that can increase PER is a silk worm capable of generating PER of 0.23%. Water quality in maintenance media is in the appropriate range for the growth of rice eel (M. albus). Based on the results of research can be concluded that the feed that can increase eel growth is by giving the silk worm.
CORAL RECRUITMENT ONTO CONCRETE ARTIFICIAL REEF IN HARI ISLAND, SOUTHEAST SULAWESI Subhan Subhan; Asrin Ginong Pratikino
AQUASAINS Vol 5, No 2 (2017)
Publisher : Jurusan Perikanan dan Kelautan

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Abstract

Study on coral recruitment in artificial reefs was carried out in Hari Island, Southeast Sulawesi. Data collection was conducted by calculating the number of genus colony and measuring coral size using visual census method equipped with scuba diving and an underwater camera. The construction of artificial reefs would vertically expand the profile of the survival of juvenile coral recruitment, where 95 new colonies of the recruitment had successfully been observed. Moreover, there were 10 genus of stony coral (Scleractinia) managed to be identified with the abundance proportion of Pocillopora, Acropora, Fungis, Leptoseris, Cynarina, Seriotopora, Acanthastrea, Favites, Montipora, Oxypora. The entire coral recruitment was dominated by genus Pocillopora reaching 80.0%. The coral recruitment in artificial reefs showed that there was potential coral recovery in the island.
EFFECTS OF VITAMIN C IN HIGH-ENERGY FEEDS ON GROWTH AND SURVIVAL RATE OF TIGER GROUPER SEEDS (Epinephelus fuscoguttatus) Pinandoyo, Pinandoyo; Hutabarat, Johannes; Nugroho, Ristiawan Agung; Herawati, Vivi Endar
AQUASAINS Vol 5, No 2 (2017)
Publisher : Jurusan Perikanan dan Kelautan

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Abstract

This research was aimed to study the effect of vitamin C on diets with low protein and high energy content on growth and survival rate of tiger grouper (Epinephelus fuscoguttatus) juveniles. It is also to know the dose or the best level concentration of vitamin C on growth and survival rate of tiger grouper (E. fuscoguttatus) juveniles. Tiger Grouper juveniles of 0,77+0,07 g initial body weight were reared in aquarium 60 cm x 40 cm x 40 cm with 7 ind. / 35 L. Artificial feed were fed in at satiation. The juveniles were fed dry pellet diets which containing 40% protein and 20% lipid in different levels of vitamin C (Ascorbate-2-Sulfate):0 mg/kg, 75 mg/kg, 150 mg/kg, 225 mg/kg. The experimental laboratoris method was conducted using Completely Randomized Design with three replicate for each treatment. The result of the experiment showed that there was a very significant effect of treatments on the SGR (Spesific Growth Rate), FCR (Feed Conversion Ratio), PER (Protein Efficiency Ratio), SR (Survival Rate) of tiger grouper (E. fuscoguttatus) juveniles (P < 0,01). That values more higher after added vitamin C (Ascorbate-2-Sulfate). Best treatment was obtained at supplementation vitamin C of 150 mg/kg. On the other hand be lower at highest dose on treatment D (225 mg/kg). Its indicated that vitamin C can improve and give better on growth and survival rate. The optimum condition of water quality also have been led to significant improvement in growth and survival rate
DEPOSIT STRUCTURE CHARACTER CaCO ON THE SHELLS OF SCALLOP (Amusium pleuronectes) AS BIO-INDICATORS OF ENVIRONMENTAL CONDITIONS IN THE BATANG WATERS Ristiawan Agung Nugroho; Pinandoyo Pinandoyo; Tristiana Yuniarti; Vivi Endar Herawati
AQUASAINS Vol 5, No 2 (2017)
Publisher : Jurusan Perikanan dan Kelautan

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Abstract

The objectives are :(1) Measurement of the character structure of CaCO3 deposit on simping’sshells, (2) Identifying Environmental Conditions of simping in Batang. The study will be conducted exploratory descriptive method (non-experimental).  The results showed as morphometric’s measurement, there’s no difference in the population growth of simping in Batang from 2003 to current. Based of analysis of the hue-saturation value which is the phenotype of CaCO3 biomineralization mechanism that is deposited in the shell, showed that the biological potency (early-stage) of the character of the population’s simping growth in Batang is better than the Brebes’s population as a comparison. Conditions of natural habitat in Brebes relatively better, so that CaCO3 deposits is better also.Based on those results, efforts to provide science and technology inputs to support the preservation of aquaculture activities is to engineer a better environment to support the genetic potential to convert to a more optimum growth rate.  Another thing that can do is to optimize the genetic potential of Batang’s simping as selective-breeding material in marine culture. It is expected that these strategies can be used to overcome the problem of limited production scallop in northern coast of Central Java in order to meet the needs of the market potential through mariculture activities.
EFFECTIVITY OF LIGHT INTENSITY ON COLOR GRADATION AND CAROTENOIDS CONTENT OF Lobophyllia hemprichii Ahmad Mustawa; Esti Harpeni; Moh. Muhaemin
AQUASAINS Vol 5, No 2 (2017)
Publisher : Jurusan Perikanan dan Kelautan

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Abstract

L. hemprichii is one of the marine ecosystems with high biodiversity and the most productive. The more healthy corals, the higher productivity in the sea. The existence of light is needed for L. hemprichii for its growth. Moreover L. hemprichii has color that produced by symbiotic algae pigments such as carotenoid pigments. Carotenoid pigment has active role to absorb light in process of photosynthetic of algae symbionts. The aims of this study were to gain different effects of  light intensity to color gradation of red and carotenoids content of L. hemprichii. The study was conducted by placing L. hemprichii into aquriums with ICR treatment (Low Light Intensity = 1514 Lux), ICS treatment (Medium Light Intensity = 3028 Lux), treatment ICR (High Light Intensity = 4547 Lux). The results showed that the light intensity affect the color gradation of  coral L. hemprichii and light intensity affect the concentration of total carotenoid pigment L. hempirchii. The best light intensity for L. hempirchii color and carotenoid pigment production was high light intensity (4547 Lux).

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