Fish Scientiae (E-Journal)
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DAYA HAMBAT KITOSAN DARI CANGKANG LIMBAH BUDIDAYA KEPITING “SOKA” TERHADAP 4 ISOLAT BAKTERI PEMBENTUK HISTAMIN PADA IKAN TONGKOL (Euthynnus affinis)
Get PDFThe purpose of this study was to determine the inhibition of chitosan from crab cultivation waste "soka" (Scylla sp) against histamine-forming bacteria in tuna (Euthynnus affinis). The formation of histamine on the cob caused by bacteria that canproduce the enzyme histidine decarboxylase to transform histidine into histamine. Several studies have described the ability of chitosan to inhibit the activity of histamine-formingbacteria. In this research, three stages, the first characterization of chitosan from crabshell waste cultivation "soka". Second, isolation of bacteria producing histamine on the cob and a third is testing the activity of chitosan against bacteria producing histamine.Characteristics of chitosan from crab shell waste cultivation "soka" is the water content of 10.07 %, 0.20 % fat, 1.42 % ash content, protein content 3.18 % and 58.99 % degree ofdeacetylation. The result of the isolation of bacterial symbionts on the cob re-examined inthe formation of histamine thus obtained 4 isolates that Serratia marcescens, Enterobacteriaceae sp, Enterobacter gergoviae and Citrobacter amalonaticus. Testing inhibition of chitosan against bacteria Serratia marcescens, Enterobacteriaceae sp,Enterobacter gergoviae and Citrobacter amalonaticus obtained a clear zone, respectively, are 0.54 ± 0.03 cm; 0.59 ± 0.01 cm; 0.41 ± 0.01 cm; and 0.40 ± 0.05 cm
POLA PERTUMBUHAN IKAN SELAR (Selaroides Leptolepis) DI PERAIRAN KABUPATEN MALUKU TENGGARA
Get PDFFish selar (Selaroides leptolepis) is one type of fish consumption that has high economic value and many caught in Southeast Maluku district waters. As an important resources, information on various aspects of fish biology is needed in order to support its management efforts. Therefore, this research is aimed to see the pattern of fish growth in Southeast Maluku waters. This research was conducted using data of catch in Sathean and Selayar village of southeast Maluku district collected during March until July 2017. The total samples of fish selar used were 877 individuals with total length size 100 t0 247 mm and means length 161.64 ± 0.82 mm and weight size 8.80 to 165.70 gram with means weight 46.39 ± 0.86 gram. The result of analysis between length and weight selar fish equation W = 0.0000008L3.044, with the growth pattern of selar fish in Southeast Maluku waters is isometric
APLIKASI DATA CITRA SATELIT UNTUK SIMULASI HIDROGRAF SATUAN METODE NAKAYASU DI SUB DAS BARITO DAN SEKITARNYA PROPINSI KALIMANTAN SELATAN
Get PDFThis research aims to simulate the arrival time of flood from upstream to downstream by using watershed data characteristic as early anticipation step as the early warning in flood disaster management that happened in Regency of Banjar by using unit hydrograph. Data Analysis Methods used to determine the simulation of the arrival time of the flooding using the Nakayasu Unit Hydrograph method combined with the SRTM satellite image data application then integrated with the Geographic Information System (GIS) The results showed that the Martapura River Basin, Banyiur River Basin, and Jaranang River Basin occurred flow debit or surface runoff (Qp) of 7.095 m3/s. This is because Martapura River Basin, Banyiur River Basin, and Jaranang River Basin have long river characteristic of 19.46 km and wide watershed 86.97 km2. Assuming that therain is falling evenly in Martapura River Basin, Banyiur River Basin, and Jaranang River Basin, it can be simulated that flood peak (Tp) occurs after 2.20 hours and will reach downstream of the river (T0,3) after 2.75 hours
PEMETAAN DAN PREDIKSI PERUBAHAN GARIS PANTAI DI KECAMATAN UJUNGPANGKAH, KABUPATEN GRESIK, JAWA TIMUR, DI BADAN INFORMASI GEOSPASIAL, BOGOR, JAWA BARAT
Get PDFThis study aims to determine the shoreline changes that occurred in Ujungpangkah District, Gresik Regency, East Java. The objective of this internship practice is to know the shoreline changes with time series satellite image data from 1999 to 2015 and UAV data of 2016, also able to analyze the cause and effect of coastline changes that occurred in Karangrejo-Gresik Sub-district.The method used in this research is using Arc.Gis overlay method. The input results are then predicted by using the exponential linear regression equation.The results showed the resistance of the 2nd zone's cumulative change of -2657 meters from the zero, while the smallest change in point 2 with the change in 2030 was -2211.9 meters from the zero point. Changes of coastline in zone 2 from 2016-2030 will experience habit (abrasion) as much as 1275,5 meter. Predicted zone 3 shoreline in the year 1999-2030from 2237.8 meters, while the most change occurred at point 8 with change in the year 2030as much as 589,4 meter from zero. The result of coastline a change in zone 1 from 2016-2030 will increase (accretion) as much as 480 meters
HUBUNGAN STATUS MUTU AIR METODE INDEKS PENCEMARAN DENGAN KEGIATAN KERAMBA JARING APUNG DI WADUK RIAM KANAN KECAMATAN ARANIO KABUPATEN BANJAR PROVINSI KALIMANTAN SELATAN
Get PDFThis study aims to determine the status of water quality in the Riam Kanan Reservoir seen from the physical parameters (Temperature and Brightness) and chemical parameters (pH, DO, Total Phosphate, Nitrate and Ammonia) using Pollution Index (IP) method, knowing trophic level in Riam Kanan reservoir seen from the parameter of Brightness, Total Phosphate and Total Nitrogen and know the influence of floating net cage activity to water quality status of Riam Kanan reservoir. Of the result on measurement of IP method water quality which based on the, the status of water quality in station 1, 2, and 3 was complied with water quality standard (goodcondition), either for class I, II, III, or IV. Based on the regulation of the state minister for environment Number 28 Year 2009 was found that the fertility level in station 1, 2, and 3 wasin the same trophic status, which was oligotrophic. The value of thit nitrate (X1), total P (X2)and ammonia (X3) either for class I, II, III, or IV was lower than t tabel for significance in 5% orsig/.probability > 0,05 which meant that H0 was accepted; KJA activities did not affect the water quality status of Riam Kanan dam
VARIASI PADAT PENEBARAN TERHADAP PERTUMBUHAN BENIH IKAN LELE SANGKURIANG (Clarias sp) YANG DIPELIHARA DALAM HAPA
Get PDFThe aim of the research was to determine the effect of different larvae stocking density onthe growth of fish catfish cultivated in cage net. A completely randomized design wasused in this study with, 3 treatments and 3 replications. The results of this study indicate that catfish (Clarias sp) in the treatment of A (stocking density 20 larvae/m2 ) has agrowth weight, the relative lengths and feed conversion is better than treatment B (stocking density of 40 larva / m2 ) and C ( stocking density of 60 larva / m2 ). But the survival rate of the treatment A and B have better than treatment C. The results of waterquality measurement (temperature , DO, pH , NH3 and CO2 ) are still within the rangethat can be tolerated by Sangkuriang catfish (Clarias sp)
RAPID ASSESMENT LIMNOLOGIS SEBAGAI INDIKATOR PENGELOLAAN (REGULASI DAN PEMANFAATAN PERAIRAN) DI ZONA PENYANGGA LAHAN BASAH RESERVAT DANAU PANGGANG KABUPATEN HULU SUNGAI UTARA KALIMANTAN SELATAN
Get PDFThe number of catches was declines in the water of the lake reservat Danau Panggang Hulu Sungai Utara of 2% per year from 3145.1 tons (2010) to 3030.0 tons (2013) and the presence of Lais fish (Cryptopterus Micronema) <1% annually followed by baung fish (Mystus nemurus) <0.5% that indicated decreased in water quality, productivity and aquatic environment as a whole as the ecological system.The purpose of the study (a) identify waters limnological conditions in the buffer zone area reservat Maningih; (B) analyze the spatial configuration of the activity at the location and values of the character bio-ecologist of aquatic resources; (C) assessed the overall condition of the attributes of the waters in the buffer zone; (D) Zoning map the profile to describe existing conditions at the sites.The methods of this research are analysis of the aquatic environment quality, as well as the biological index quissioner accompanied by descriptive statistics and mapping.A high concentration of organic material derived from organic waste with COD and level biodiversity indicators that is phytoplankton, is more dominant than zooplankton form Chlorophyta group as a manufacturer of natural fresh water to consumers in the formichtioplankton. The structure of the settlement at the location of the waters of 50-75%, cultivation and fishing as the main economic activities with the result of 2-10 species caught as well as four species whose presence is low. Mapping factors causing damage tothe buffer zone resulting from an increase of 30% residential, public behavior, intensity offishing and illegal fishing
PENGARUH PENAMBAHAN VITAMIN C DAN EKSTRAK TEMULAWAK PADA PAKAN KOMERSIL TERHADAP PERTUMBUHAN POST LARVA IKAN PAPUYU (Anabas testudineus Bloch)
Get PDFAdding effect of vitamin C and extracts temulawak on this research aims to determine the effect of vitamin C on the feed premixes. The addition of ginger aims to increase appetite post of papuyu fish larvae and post larvae growth of papuyu fish reared in hapa. The usefulness of this research is to gain a level optimization of the use of vitamin C and extracts of ginger in immune papuyu post-larval fish, so we get a superior seed.From the research results that the addition of vitamin C and ginger did not affect growth, but significant effect on survival and feed conversion papuyu post-larval fish. Value retention of protein and good fats in treatment B (addition of vitamin C to commercial feed). The range of water quality in the research is still in a good range and allow the fish to live flowers papuyu
KAJIAN PEMBERIAN ASAM ASKORBAT (VITAMIN C) DENGAN KONSENTRASI YANG BERBEDA TERHADAP KETENGIKAN ABON IKAN LELE (Clarias batrachus)
Get PDFThis research study about of the added ascorbic acid with different concentrate on fish abon rancidity which storage on day-1 and day-15, the parameters is chemist and organoleptic. Contribute from this researchs are to know the optimally ascorbic acid concentrate on make fish abon. This research use 4 (four) treatments are: no added ascorbic acid, added ascorbic acid 1%, 2% and 3%. Result from this research are added ascorbic acid with the different concentrate no significant to water basis but to lipid, rancidity and organoleptic significant and very significant inter treatment, which treatment A is the best during day-1 storage, and treatment D is the best during day-15storage
DIVERSIFIKASI OLAHAN BERBASIS IKAN PATIN DI DESA JINGAH HABANG HILIR KECAMATAN KARANG INTAN KABUPATEN BANJAR KALIMANTAN SELATAN
Get PDFInstead of processing technologies in order to fish based processed products diversification catfish in Banjar Regency is still urgently needed to introduce on the processors and consumers about the kinds of products processed fast-food restaurant. Diversification of processed fish catfish can increase the added value and the economy while increasing the Community fishery in the village of Jingah Habang Hilir with chilliesdownstream. Such understanding can serve as an alternative in action processing and preserving fish quality semi modern catfish in sufficient protein needs at the time of paceklik fishes. Skill enhancement programs through outreach, training and coaching forthe community must be in accordance with tha needs and characteristics of the community itself as businessmen is not an easy thing. Target audience itself as a partneris already accustomed to utilizing fish catfish processed products with variations, but it turns out the evaluation results in dire need of citations, formatations/models and practicaldirections for mking products such as ready made meatballs, nuggets and fish-baseddragon foot catfish to the development potential of aquatic resources optimally