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ANALYSIS OF DIFFERENT NATURAL FEED CONSUPMTION ON GROWTH AND SURVIVAL RATE OF EEL (Monoptherus albus) IN CLEAR WATER SYSTEM
Get PDFThis 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
WATER QUALITY STATUS AT INTEGRITY AREA OF BUNGUS OCEAN FISHING PORT BASED ON WATER CLASSIFICATION
Get PDFOcean Fishing Port Bungus Complex is an integrated area in ocean fishing port that bordered by the sea (Mentawai Strait), traversed by a small river and surrounding by paddy fields. There are several facilities in PPS Bungus Complex such as fishing port, waters surveillance, research, fishery processing industry, settlement and others. Various activities that exist certainly have an impact to the existing waters. The purpose of this research is to know the status of water quality based on water classification. The result of analysis based on Government Regulation No.82 Year 2001 which conducted on water classifiction at estuary and outlet shows that the condition of waters is including to the Class IV for agriculture and industry, while around wharf, waters including to the Class III, for fishery. The water index classifiction based on Living Environment Minister Decree No.115 Year 2003 shows that estuary, outlets and wharf are not polluted. Result of analysis to waters for Class IV showed index 0,780 at estuary and 0,712 at outlet, while at wharf showed index 0,794 or Class III. Some parameters such as turbidity, BOD and Cd in estuary and outlet slightly exceeded the quality standard but are still within tolerable limits (Living Environment Minister Decree No.51 Year 2004). Based on the Living Environment Minister Regulation No.3 Year 2010 on quality standard of waste water in industrial area, in this case the outlet, shows that parameter of COD, pH, TSS, Selenium and Copper are appropriate to quality standard
INDICATION OF SEA WATER INTRUSION AS ONE OF THE IMPACT OF SEA LEVEL RISE (CASE STUDY OF TUBAN REGENCY)
Get PDFDampak kenaikan permukaan air laut (sea level rise/SLR) di pesisir Kabupaten Tuban diprediksi terbagi menjadi 3 kelompok yaitu kemunduran garis pantai, penggenangan, dan intrusi air laut. Untuk mengetahui gejala intrusi air laut yang terjadi di pesisir Kabupaten Tuban ini diperlukan pemetaan sebaran air tanah asin hingga payau. Penelitian dilakukan dengan mengambil air sampel pada 100 titik di beberapa sumur gali maupun sumur bor yang tersebar pada akuifer dangkal dan dalam di 5 Kecamatan yang ada di kabupaten Tuban yang meliputi kecamatan Bancar, Tambakboyo, Jenu, Tuban dan Palang dengan jarak 200 -300 m dari garis pantai. Selanjutnya air sampel yang diambil dilakukan pengukuran Daya Hantar Listrik (DHL). Hasil nilai pengukuran DHL kemudian di bentuk peta sebaran nilai DHL untuk mengetahui klasifikasi tingkat keasinan air tanah yang ada di daerah pesisir Kabupaten Tuban. Selanjutnya sampel dianalisa di laboratorium untuk mengetahui kandungan ion Carbonat (CO3), Bicarbonat (HCO3), Khlorida (Cl). Indikasi adanya penyusupan air laut ditentukan berdasarkan nilai perbandingan kadar ion Khlorida (Cl) terhadap jumlah ion karbonat (HCO3-1 + CO3-2). Peta sebaran nilai DHL di Kabupaten Tuban antara 900-1500 (sifat air: air tawar) yaitu Kecamatan Bancar, Jenu, Tuban, sedangkan <1500 – 1800 (sifat air: air agak payau) yaitu Jenu, Tambakboyo, Bancar. Tingakt intrusi yang terjadi kategori sedikit dan sedang yaitu hamper di 4 kecamatan pantai (Bancar, Tambakboyo, Jenu, Palang) sedang kecamatan Tuban masih air tawar. Nilai DHL lebih dari 1500 µS/cm terdapat di empat kecamatan (Bancar, Tambakboyo, sebagian Jenu, dan palang). Wilayah tersebut memiliki jarak dengan laut cukup dekat, namun pada beberapa tempat dilokasi tersebut juga masih ditemukan kondisi air yang tidak asin. Daerah sebaran air tanah agak payau menempati akuifer berupa lempung pasiran yang merupakan endapan alluvial dengan permeabilitas umumnya rendah dan topografi permukaan tanah datar hingga landai, sehingga sangat rentan terhadap intrusi air laut. Air tanah agak payau didominasi oleh akuifer berupa pasir gampingan hingga lempung gampingan, namun sebagian juga masih masuk ke dalam sistem akuifer endapan alluvial. Selain perbedaan sistem batuan penyusun akuifer jarak antara sumur dengan air laut juga menjadi salah satu faktor penyebab perbedaan tingkat keasinan air tanah
EFFECTS OF VITAMIN C IN HIGH-ENERGY FEEDS ON GROWTH AND SURVIVAL RATE OF TIGER GROUPER SEEDS (Epinephelus fuscoguttatus)
Get PDFThis 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 rat
PROTECTED, PROHIBITED, AND INVASIVE FISH DIVERSITY AND DISTRIBUTION IN RANAU LAKE OF WEST LAMPUNG DISTRICT
Get PDFThe objectives of this research were to collect fish species in Ranau Lake of West Lampung District, analyze the fish community structure, determine the types of fish that are protected, prohibited, or invasive and mapping its distribution. Sampling was done on three locations: Station 1 (Suka Banjar), Station 2 (Kagungan), and Station 3 (Lombok). The data were analyzed by the structure of the community: diversity (H'), uniformity (E) and dominance index (C). The result of the identification indicate that there are 26 species of fish and total number of fish is 184. The results of the analysis of fish community structure in Ranau Lake have medium diversity, medium distribution and moderate community stability (H’=1.43), medium uniformity and volatile communities (E = 0.41), low dominance and no dominant fish species (C = 0.32). From the 26 fish species in Ranau Lake, there are no protected and prohibited fish species, there are two types of fish categories as invasive alien species: nile tilapia (Oreochromis niloticus) and suckermouth catfish (Hypostomus plecostomus)
CORAL RECRUITMENT ONTO CONCRETE ARTIFICIAL REEF IN HARI ISLAND, SOUTHEAST SULAWESI
Get PDFStudy 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
THE EFFECT OF HEAT SHOCK DIFFERENCES TOWARD HATCHING RATE ON METHOD OF MEIOSIS GYNOGENESIS IN CARP (Cyprinus carpio)
Get PDFCarp is a freshwater fish, body shape is long and somewhat rounded with a small head, the high back and across large scaly body. The development of aquaculture carp (Cyprinus carpio) is progressing very rapidly with cultivation system are manifold. Pisciculture technology will not form without yielding seeds followed by genetic improvement effort. To improve the quality of the parent, the parent needs to be purified race carp (Cyprinus carpio) that exist so that the resulting pure strain. The success of seed carp, especially at this stage of the enlargement is determined by the quality of the seed. Breeding programs developed at this time is the method gynogenesis. Ginogenesis method is the process of female gamete without interference from male gamete gene. The experimental design used in this study is completely randomized design (CRD) is equipped with 3 treatments and 3 replications. Analysis using analysis of variance, with the distribution table F or F test that compares the value of F arithmetic with F table. Based on the analysis of research data on the influence of the length of time a different heat shock against the hatchability of eggs carp (Cyprinus carpio) method gynogenesis meiosis, based on the results of research, treatment A showed optimal results with an average 17.33, treatment B showed 12. 33 and C treatment showed 7.00. Based on calculations obtained ANOVA calculated F value (47.29)> F 1% (18.00) but larger than F 5% (6.49) then H1 is rejected at the level of a = 1% and H0 highly significant conclusions (hight significant)
EFFECTIVITY OF LIGHT INTENSITY ON COLOR GRADATION AND CAROTENOIDS CONTENT OF Lobophyllia hemprichii
Get PDFL. 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)
POPULATION DENSITY AND DISTRIBUTION PATTERNS OF KALAMBODO MUSSEL (Anodonta woodiana) IN THE SUB WATERSHED OF LAHOMBUTI RIVER, LAHOTUTU VILLAGE, KONAWE DISTRICT SOUTH EAST SULAWESI
Get PDFAbstrak The research was conducted in November 2018 - February 2019 in the Sub-watershed of the Lahombuti River in Lahotutu Village, Konawe Regency. The purpose of this study was to determine aspects of population density and distribution patterns of the Kalambodo (A. woodiana) in the Sub watershed of the Lahombuti tributary in Lahotutu Village, Wonggeduku District, Konawe Regency. The sampling location was determined using the purposive random sampling method. Sampling of Kalambodo (A. woodiana) was carried out at the location with the greatest abundance of A. woodiana, in the Sub watershed of the Lahombuti tributary of Lahotutu Village, on the "Main Rice Field Irrigation Channel" (diameter: ± 1,75 m, length: ± 4500 m, depth: ± 110 cm). Sampling of A. Woodiana was carried out at the same station with different spot sampling points. The Kalambodo samples were taken using a 1x1 m2 sized transect on 3 randomly assigned plots. The range of A. woodiana density per sub station is November 2018 amounting to 67-95 ind/m2, December 2018 is 41-61 ind/m2, January 2019 is 41-148 ind/m2 and February 2019 is 101- 114 ind/m2. The average density based on the period from the highest to the lowest is obtained in February 2019, January 2019, November 2018, and December 2018, which is 106.67 ind/m2, 81.33 ind/m2, 78 ind/m2, and 53 ind/m2, respectively. The distribution pattern of A. woodiana in the Sub-watershed of the Lahombuti River Basin generally shows a uniform category (Id <1), with a range of morisitha index values of 0.65-0.87
Suitabilty Analysis of Polychaeta Habitat in Seagrass Ecosystem, Parang Island, Karimunjawa, Central Java
Get PDFPolychaeta is one of many organisms associated to seagrass bed. To grow optimally, polychaeta needs habitat that suitable to its habit and feeding behaviour. This research aims to analyze polychaetahabitat suitability on seagrass ecosystem at Parang Island, Karimunjawa. The research was held on September 2012, at Parang Island, Karimunjawa. The result shows that the seagrass bed is a mixed community type consisted of 7 seagrass species, and 12 kindsof polychaeta which Spionidae is the highest in abundance (141 ind.m-2). The result of Principal Component Analysis (PCA) indicates that polychaeta abundance was affected by some factors, i.e; organic material of substrate, graveled and muddy substrate, dissolved oxygen, depth, nitrate concentration, zooplankton, and seagrass percent cover