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THE INITIAL ECHINODERMS COMMUNITY STRUCTURE IN SEAGRASS BED OF MARINE TOURISM AREA: MAHITAM ISLAND AND KETAPANG BEACH, LAMPUNG
Get PDFLampung is one of national marine tourism destination. Seagrass is one of fragile coastal ecosystem and it is a habitat and feeding ground for a number of Echinoderms species. Echinodermata are nutrient recyclers that will in turn provide benefits to the seagrass ecosystem. This research aimed to assess the community structure of Echinoderms and seagrass as well as the relationship between Echinoderms abundance, seagrass densities, and water quality in Mahitam Island and Ketapang Beach. Observations were conducted at 7 stations, namely 3 stations on Ketapang Beach and 4 stations on Mahitam Island. Observations included the type and number of echinoderms, as well as the type, number of individuals, and number of seagrasses stands. Habitat quality that was observed were included water quality such as temperature, salinity, pH, DO (dissolved oxygen), current speed, brightness, and TOM (total organic matter) and also observed substrate type at each station. The result elucidated nine species of echinoderms and 4 species of seagrasses were found in both study sites. The average value of Echinoderms diversity index in Mahitam Island and Ketapang Beach was low. The uniformity index of Echinoderms in Mahitam Island was medium and Ketapang Beach was low. The dominance index of Echinoderms on Mahitam Island was categorized as low and Ketapang Beach was considered high. There was a domination of an Echinoderms species in some stations. The association between Echinoderms abundance, seagrass density and habitat quality in both locations showed a positive relationship and was influenced by the habitat quality parameters of seagrasses
ANALYSIS OF BACTERIAL ABUNDANCE IN THE INTESTINES OF COMMON CARP Cyprinus carpio TREATED WITH THE PROBIOTIC Bacillus subtilis
Get PDFEfforts to increase microbial populations in fish intestines tract can be done by utilizing microbes in the fish's digestive tract as probiotics. The application of Bacillus subtilis in fish feed mixtures can provide better growth performance in modifying microbes in the intestines of fish. The aim of this research was to analyze the bacterial community in the intestines of Common Carp(Cyprinus carpio) that have been given probiotics from the bacteria Bacillus subtilis with metagenome sequencing using 16S rRNA through Next Generation Sequencing (NGS) technology. Common carp samples were collected from maintenance conducted with different treatments, namely control fish without probiotic administration and fish treatment with mixed feed probiotic Bacillus subtilis. This research was conducted in the Laboratory of Fisheries Biotechnology, Faculty of Fisheries and Marine Science, Padjajaran University. Then molecular identification was carried out using Illumina's NGS in Novogene, Singapore. The results of the identification of using probiotic bacteria Bacillus subtilis in Common carp(Cyprinus carpio) feed affect the bacterial community in the fish intestine. In the intestines of carp that were given probiotics, the highest abundance was Proteobacteria, Fusobacteriota, and firmicutes.The highest abundance at the genus level in both samples was domiciled by the genus Cetobacterium followed by the Sphingomonas and Aeromonas
MARKETING ANALYSIS MASAMO CATFISH AT SUKAS FISH FARM EAST UNGARAN DISTRICT, SEMARANG REGENCY
Get PDFThis study aims to determine marketing channels, the amount of margin and the farmer's share and the marketing efficiency masamo catfish in the fish farmer group sukas fish. The method used in this research is descriptive analysis method, data and literature studies. Based on the analysis results obtained in a research note that the marketing catfish masamo in a group of fish farmers efficiently halcyon sukas. It is based on the analysis of the purchase price, selling price and profit earned marketing agencies involved. The efficiency value of each institution, namely marketing, traders and retailers 0.051 0.038. There are three masamo marketing channel catfish in the fish farmer groups mina tranquility. Channel 1:farmers and consumers. Channel 2: growers, retailers and end customers. Channel 3: farmers, traders, retailers and end customers. The amount of margin cultivators (Rp.2.000), collector (Rp.3.500) and retailers (Rp.4.500). Farmer's share value on channel 1 (100%), channel 2 (82.05%) and channel 3 (81,25%)
ADDITION OF FERMENTED Eucheuma cottoni SEAWEED FLOUR WITH FERMENTER EM-4 IN TILAPIA (Oreochromis niloticus) COMMERCIAL FEED
Get PDFThe purpose of this study was to analyze the addition of fermented E cottoni seaweed flour with the EM-4 fermenter in commercial tilapia feed. This research was conducted for 50 days at the Fish Production and Reproduction Laboratory, Faculty of Agriculture, University of Mataram, while for proximate analysis it was carried out at the Laboratory of Nutrition and Animal Feed Sciences, University of Mataram. The research method used was an experimental method with a completely randomized design (CRD), consisting of 4 treatments and 3 replications with the addition of seaweed flour 0%/kg, 10%/kg, 20%/kg, and 30%/kg of commercial feed. Parameters measured were absolute length absolute weight, specific growth rate, feed utilization efficiency ratio (EPP), feed conversion ratio (FCR), survival rate, and water quality. Data were analyzed using the ANOVA test at the 5% level. Then proceed with Duncan's test level of 5%. The results showed that the addition of different concentrations of EM-4 fermented E. cottoni seaweed flour to commercial feeds could affect growth, EPP, and FCR, but did not affect the survival rate of tilapia. The addition of E. cottoni seaweed powder fermented by EM4 at a concentration of 20% could increase the absolute weight, absolute length, specific growth rate, EPP, and FCR of tilapia which were better than the control treatment, which were respectively 7.44 g, 3, 48 cm, 2.31%/day, 93% and 1.2
CONSUMER PREFERENCES OF BIODEGRADABLE TOTE BAG PRODUCTS FROM SEAWEED CARRAGEENAN (Eucheuma cottoni)
Get PDFBiodegradable tote bag is a processed carrageenan product from seaweed (Eucheuma cottoni) which is processed into fashion products. Consumer preferences are used to see consumer choices in determining the most preferred attributes of biodegradable tote bag products. This study aimed to see consumer preferences for biodegradable tote bag products. This research was conducted in Cibinong District, Bogor Regency as a general segmentation and Jatinangor District, Sumedang Regency as a special segmentation. The research method used was quantitative descriptive with analysis using frequency distribution and the Mann-Whitney U Test. The sampling technique was purposive sampling. The results showed that, out of the 6 attri-butes, there were 2 attributes that had a real difference between general segmentation and student segmentation, namely color attributes and the size of biodegradable tote bag products. Meanwhile, the other 4 attributes have no noticeable difference, namely texture, aroma, water resistance, and weight durability. Consumer preferences in general segmentation and the majority of students choose biodegradable tote bags that have a dark green color, smooth texture, no aroma, resistant to water, the ability to withstand a weight of > 1 kg, and measuring 30 x 40 cm
QUALITY OF SHRIMP CRACKERS WITH ADDITIONAL INGREDIENTS OF BLUE SWIMMING CRAB (Portunus pelagicus) WASTE PRODUCT, LEMI
Get PDFThe purpose of this study was to determine the difference in the quality of crabs from the addition of crab mustard in the manufacture of shrimp crackers, increasing the usefulness of crab mustard which are generally discarded and can be used as processed cracker products. The use of crab mustard in this study as an additional ingredient in the manufacture of shrimp crackers. Quality parameters in the form of nutritional composition include: protein, fat, carbohydrate, water and ash, organoleptic test (texture, taste, smell and color) and Total Plate Count (TPC). Experimental method, analysis of data by F test on product quality with 5 treatment composition comparisons: flour, mustard and shrimp meat, namely: L (50%: 50%:0%); A (50% : 37.5% : 12.5%); B (50% : 25% : 25%); C (50% : 12.5% : 37.5%); U (50% : 0% : 50%), each treatment had 3 replications. The results of proximate analysis (protein, fat, carbohydrates, water and ash), organoleptic test showed a very significant difference (P<0.01) between treatments, but for TPC there was no significant difference (P>0.05). The best nutritional composition in treatment C. The best organoleptic test results in treatment C. The best TPC value in treatment A
BIOPHYSICAL POTENTIAL OF CONSERVATION AREA AS A BASIS FOR THE DEVELOPMENT OF ECOTOURISM AREA (Case Study: Lubuk Larangan Bendung Sakti Inderapura)
Get PDFSaat ini Lubuk Larangan Bendung Sakti Inderapura diperkirakan sedang bertahap menjadi destinasi wisata yang menarik. Ada beberapa aktivitas yang dapat dilakukan di perairan lubuk larangan bendung saktiyang mungkin menjadi tempat ekowisata. Tujuan penelitian ini adalah bagaimana mengembangkan ekowisata lubuk larangan tersebut yang dinilai dari A3 (Atraksi, Aksesibilitas, dan amenitas) dan juga secara biofisik kualitas air perairan Lubuk Larangan Bendung Sakti di Kabupaten Pesisir Selatan. Metode yang digunakan adalah deskriptif kuantitatif dengan pengharkatan skor dan dilanjutkan dengan kualitas udara menggunakan uji STORET.Hasil penelitian menunjukkan bawwa Biofisik ditinjau dari aspek Atraksi, Aksesibilitas dan Amenitas pada kawasan perairan lubuk larangan Bendung Sakti tergolong ke dalam interval kondisi biofisik “Baik”. Kondisi kualitas perairan berdasarkan hasil uji STORET menujukkan bahwa status kualitas udara di kawasan lubuk larangan ambang batas kualitas udara (tidak tercemar) dengan skor 0. Hal ini menunjukkan status kualitas udara di Lubuk Larangan Bendung Sakti dalam kategori baik sekali dan pada kelas A yaitu memenuhi baku mutu. Kondisi biofisik tersebut adalah bahwa kawasan lubuk larangan bendung sakti layak dan dijadikan sebagai kawasan ekowisata secara berkelanjutan Hal ini menunjukkan status kualitas udara di Lubuk Larangan Bendung Sakti dalam kategori baik sekali dan tergolong pada kelas A yaitu memenuhi baku mutu. Kondisi biofisik tersebut adalah bahwa kawasan lubuk larangan bendung sakti layak dan dijadikan sebagai kawasan ekowisata secara berkelanjutan Hal ini menunjukkan status kualitas udara di Lubuk Larangan Bendung Sakti dalam kategori baik sekali dan tergolong pada kelas A yaitu memenuhi baku mutu. Kondisi biofisik tersebut adalah bahwa kawasan lubuk larangan bendung sakti layak dan dijadikan sebagai kawasan ekowisata secara berkelanjuta
BIOMASS PRODUCTION, GROWTH RATE, AND CARRAGEENAN CONTENT OF Kappaphycus alvarezii PERFORMED BY VERTICULTURE METHOD WITH DIFFERENT INITIAL WEIGHT
Get PDFKappaphycus alvarezii seaweed is important for the processing industry because it contains carrageenan used as a stabilizer, thickener, material forming an emulsifier. This study aimed to find the best and optimal initial seed weight treatment for maximum biomass production, growth rate, and carrageenan content. The research location was in the waters of Aeng Batu-Batu Village, Takalar Regency, South Sulawesi in August-September 2022. The randomized block design method (RAK) consisted of 4 treatments each with 4 repetitions. Seaweed seedlings from spores were weight of 20 g, 40 g, 60 g, and 80 g planted at 60 cm depth respectively and maintained for 45 days. Data analysis used (ANOVA) and W-Tuckey to determine the differences between treatments. The result of the analysis of variences showed that the weight of 40 g, 60 g, and 80 g had an effect on the biomass production, growth rate, and K. alvarezii carrageenan content. However, the highest yield was obtained at a weight of 20 g which had a very significant effect (p<0.01)
THE EFFECT OF DIFFERENT PLANTING DISTANCES ON THE GROWTH OF Sargassum sp. CULTIVATED AT BOTTOM-OFF IN EKAS BAY, JEROWARU DISTRICT, EAST LOMBOK REGENCY
Get PDFSargassum sp. is brown algae which contain bioactive compounds such as fucoidan and alginate. Alginates are widely used in the medical, food and gelling industries and stabilizers. In laboratory experiments, Fucoidan can be used as anti-inflammatory, anti-tumour, and anti-viral. This study aims to analyse the effect of different spacing on the growth of Sargassum sp. using the baseline method in Ekas Bay, Jerowaru District, East Lombok Regency. The method used is an experimental method using a Completely Randomized Design (CRD) with a cultivated period of 30 days. The results showed the growth of Sargassum sp. The highest was in treatment E (40 cm) with an average absolute growth of 628 g, specific growth of 3.76%, number of leaves 7843, number of fruits 7413, with 90% Alginate yield. The lowest growth value was obtained in treatment A (20 cm) with an absolute growth value of 392 g, specific growth of 2.78%, number of leaves 5084, number of fruits 5610 with an alginate yield of 57% with an initial planting weight of 100 g. The conclusion of this research is the different spacing of the seaweed Sargassum sp. using the baseline method in Ekas Bay, Jerowaru District, East Lombok Regency had a significant effect on absolute growth, specific growth rate, and several leaves but not significant on the number of fruits
UTILIZATION OF FERMENTED SPINACH LEAVES (Amiranthus spinosus L.) IN FEED FORMULATION TO STIMULATE MOLTING OF MANGROVE CRAB (Scylla serrata)
Get PDFThere are several techniques that have been developed to accelerate the molting of mud crabs, namely ablation, mutilation and supplementation. One form of supplementation is through the use of fermented spinach leaves on mud crabs. This study aimed to analyze the use of fermented spinach (A. spinosus L) leaves in feed to stimulate the molting of mud crab (S. serrata). This research was conducted for 60 days. The experimental method used in a Completely Randomized Design (CRD) consisting of five treatments and three replications, namely trash fish (P1), Spinach Leaf Fermentation (FDB) 20% (P2), 25% (P3), 30% (P4), and 40% (P5). The results showed that the combination test feed of spinach leaf fermentation had a significant effect on absolute weight and length, specific growth rate (SGR), and feed utilization efficiency, but had no significant effect on feed conversion and survival. Treatment of feed with additional fermented of spinach leaf 30% gave a faster initial molting, which is in the first 10 days with a total of 6 molting crabs and a molting percentage of 40%. Feeding with the addition of 30% and 40% spinach leaf fermented concentrations can provide the best growth and feed efficiency for mangrove crabs