1. International Seminar Fisheries and Marine Industrialization 2012

Permanent URI for this collection

https://repository.unri.ac.id/handle/123456789/5607

Browse

Now showing 1 - 20 of 34

AMMONIA Absorption In Nitrogen Industry Wastewater By Microalgae Chlorella Pyrenoidosa, Nannochloropsis Sp. And Bacteria Pseudomonas Fluoresc
(2016-04-04) Marhaini; Faizal, Muhammad; Dahlan, Muhammad; Arinafril; Marsi
The growth of Chlorella pyrenoidosa microalgae, Nannochloropsis sp. and the bacterium Pseudomonas fluorescens on urea nitrogen industry wastewater has been investigated as an effort to study the potential of these microorganisms in the remediation of nitrogen industry wastewater. Microalgae and bacteria to be grown on media in water treatment plants with high levels of urea fertilizer NH3-N and by 50 percent urea for inhibitory Concentration (IC50). The results showed that the microalgae C. pyrenoidosa able to grow and tolerant on the levels 626.646 ppm of NH3-N and 1426 ppm urea, Nannochloropsis sp. NH3-N and urea 559.854 1398 ppm, whereas P. fluorescens 723.219 ppm and 1623 ppm urea. Microalgae and bacteria growth at that concentration can absorb C. pyrenoidosa NH3-N 53.46% and urea 58%, Nannochloropsis sp. NH3-N 57.5% and 53.71% urea, whereas P. fluorescens NH3-N 62.47% and 62.47% urea. Based on the results of these studies, microalgae and bacteria have potency to be developed as a bioremediation agent in absorbing nitrogen industry wastewater, on the bottom of the pool, deposition microalgae can be used as an alternative energy source.
Analysis Of Shoreline Changes Of Bengkalis Island
(2016-04-12) Abdillah, Yayat; Husrin, Semeidi; Sudirman, Nasir
The island of Bengkalis in Riau province is highly vulnerable against the impact of future sea level rise because of its low lying coastal area. Moreover, actions of waves, currents and human interferences may lead to even faster retreat of the coastlines. The objective of this study is to investigate the shoreline changes over the last decades and to determine coastalvulnerabilitydue to climate change in the future. GIS method has been implemented to assess shoreline changes based on satellite images and other supporting data. Based on LANDSAT images, we found the northern part of Bengkalisshoreline suffers 4 m/year of erosion while the southern part experiences 2m/year of erosion. Combined with the analysis of future climate changes that may lead to sea level rise, the island of Bengkalis is considered to have high index of coastal vulnerability due to dense occupation in the coastal area and constant retreat of shorelines.
Assessment Of Heavy Metals (Al, Zn, Cu, Cd, Pb And Hg) In Demersal Fishes Of Kuala Tanjung Coast, North Sumatra
(2016-04-02) Simanjuntak, Charles; Djumanto; Rahardjo; Zahid, Ahmad
The presence of heavy metals in aquatic environment has been of great concern because of their toxicity when their concentration is more than the permissible level. This study was carried out to assess concentrations of six heavy metals (Al, Zn, Cu, Cd, Pb and Hg) in the muscle and liver of Chiloscyllium punctatum, Chiloscyllium indicum, Johnius belangeri, Nibea soldado, Otolithes ruber, Paratrypauchen microcephalus, Cynoglossus lingua, and Cynoglossus puncticeps from Kuala Tanjung coastal waters. The levels of Al, Zn, Cu, Cd and Pb were measured by Graphite Furnace Atomic Absorption Spectroscopy (GFAAS) technique; whereas Hg was measured by Cold Vapour Atomic Fluorescence Spectroscopy (CV-AFS) technique. The bioaccumulation of Al, Zn and Cu was predominant followed by Cd, Pb and Hg both in muscle and liver tissue of fish sample. The concentration range of Al, Zn, Cu, Cd, Pb and Hg in muscle was 0.01-16.9, 2.97-11.5, 0.01-0.37, 0.001-6.400,
The Composition Of Epiphytic Diatom On Nipah Trees (Nypa Fruticans) At Dumai River Estuary, Dumai City
(2016-04-07) Siregar, Sofyan Husein
In recent years, Dumai River Estuary has become one of area indicated increasing of polution caused by human activities. Nipah Trees is abundant found in this location. In directly, epiphytic diatom composition attached with Nipah Trees will be affected by river environtment. The aim of this research is to describe the composition of epiphytic diatom on Nipah Trees from several area at Dumai River Estuary. Epiphytic diatom sampel was collected by scrapping 5 x 5 cm on Nipah Trees from 5 station (from river mouth to river body) on July 2011. Water quality parameter was also meseured in the same time when diatom collected. Thirteen species (Actinocyclus ehrenbergi, Bacillaria paradoxa, Biddulphia granulata, Biddulphia reticulata, Coscinodiscus sp, Licmophora abbreviate, Melosira sp, Navicula sp, Pleurosigma sp, Rhizosolenia alata, Skeletonema costatum, Thalassiothrix frauenfeldii, Triceratum reticulum) were found at Dumai River Estuary. Morever, The number of diatom species were 3 species at mouth river estuary and was only 1 species at river body. The abundance of epiphytic diatom on Nipah Trees along Dumai River Estuary ranged from 1634 to 6536 cells/cm2. The highest abundance of epiphytic diatom was found at the mouth river estuary and was gradually tended to decrease toward river body. Beside that values of water quality parameters were varied along the river estuary, with Salinity ranged was from 1 to 24 ppt, pH was 4,8 to 7,Total Solid Suspence was 30 to 143 ppm, Current was 0.02 to 0.72, BOD5 was 4.2 to 9.0 ppm and COD was 10.8 to 43.2 ppm . Based on number and abundance spesies, water quality parameters that affected the composition of epiphytic diatom was current
Coral Reef Rehabilitation In Marine Tourism Park Of Pieh Island And Its Surrounding Waters
(2016-04-04) Darmawan; Husrin, Semeidi; Alrizky, Muhammad
Pieh islandand its surrounding waters in West Sumatera Province has been recently declared as a marine tourism park. Covering a total area of 39,900 ha, this parkis rich by coral reef ecosystem, especially in five dedicated small islands: Pieh, Bando, Air, Pandan and Toran. Based on the identification and monitoring efforts carried out in 2010, more than 50 % of coral reef in this area was damaged. The objective of this paper is to describe the rehabilitation measures that have been carried out by LKKPN since 2010 to improve the conditions of coral reef ecosystem. The measures consisting of legal aspects (e.g. regulations and local rules), technical aspects (e.g. monitoring and transplantations), and other supporting measures have shown some improvement on the quantity of living coral reefs. Moreover, in order to boost the economy of locals, future plan to manage this marine tourism park will also be discussed.
THE DIFFERENCE OF PHYTOPLANKTON ABUNDANCE INSIDE AND OUTSIDE OF FLOATING CAGE IN BANDAR KHAYANGAN RESERVOIR PEKANBARU
(2014-01-30) Siagian, Madju; Simarmata, Asmika H; Sihotang, C
This research has been conducted from September – October 2011 in Bandar Khayangan reservoir. This research aims to understand the difference of phytoplankton abundance inside and outside the floating cage in Bandar Khayangan reservoir. Water samples were collected from 3 stations, namely station 1 (in the upstream of the floating cage area), station 2 (in the floating cage area) and station 3 (downstream of the floating cage area). There were 2 sampling sites in each station, in the surface and in 2.5 secchi depth. Sampling was done three times, once a week. Water quality parameters measured were temperature, transparency, pH, DO, CO2, Nitrate and Phosphate. Method used in this research is a survey method. Phytoplankton were sampled using plankton net no 25 and were preserved using lugol 1% and then identifield based on Davis (1955), Prescot (1972), Yunfang (1989), and Yamaji (1995). Result shown that the abundance of phytoplankton range from 10.534 – 42.297 cell/l. The highest of abundance in station 3 (after floating cage) was 42.297 cell/l and the lowest was in the station 1 (before floating cage area) was 10.534 cell/l. Water quality parameter values were as follow: Nitrate, 0.019 – 0.034 mg/l and Phosphate 0.035 – 0.062 mg/l. Based on phytoplankton data, it can be concluded that Bandar Khayangan water can be categorized as mesotrophic.
The Effect Of Fish Visceral Enzymes On Ripening Quality Characteristic Of Salt-Fermented Mackerel (Rastrelliger Sp)
(2016-04-02) Hasan, Bustari; Iriani, Dian; Densi, Asmoro; Rico, Mustafa
This research was intended to improve ripening quality characteristic of salt-fermented mackerel by addition of fish visceral enzyme. Two week ice-stored mackerel weighing 250-350 g each were taken from a fish market in Pekanbaru; and the fish were processed for salt-fermented fish in the Laboratory of Fish Processing Technology, Faculty of Fisheries and Marine Science, University of Riau. Three batches of salt-fermented mackerel were prepared respectively from whole gutted fish + enzyme (A), whole gutted fish (B) and whole ungutted fish (C). The fish were ripened at room temperature for four weeks; and changes in their sensory quality characteristics, NPN, FFA, Halophilic and LAB counts were evaluated every week. The results showed that sensory quality characteristics of salt-fermented fish differed among the three lots during ripening process (P<0.05). Lot A had better quality characteristics and shorter ripening time than lot B but less quality characteristics and longer ripening time than lot C. NPN and FFA values in lot A were also higher than lot B but lower than lot C (P<0.05). Total halophilic counts in lot A were not significantly different from lot C (P>0.05), but higher than that lot B (P<0.05). There was an increasing trend in halophilic counts of the three lots during ripening process. Total lactic acid bacterial counts of the three lots decreased gradually up to the end of ripening (P<0.05).
The Effect Of The Salinity Change On The Survival And Growth Of Nile Tilapia (Oreochromis Niloticus)
(2016-04-02) Tantu, Andi Gusti; Ratnawati; Ratnawati; Mardiana
The research is conducted on May to June of 2012 at Fishery Laboratory of University 45 Makassar. It is aimed at understanding the effect of salinity change on the survival and growth of Nile Tilapia O. niloticus. Research involves five treatments in which each treatment includes the salinity rates of 11, 17, 23, 29 and 35 ppt. Research is initiated by adapting Nile Tilapia O. niloticus juvenile to salinity 5 ppt for 10 days. The salinity of media water is then increased slowly to 11, 17, 23, 29, and 35 ppt until the day 20. At the day 21 to the day 31, the salinity of media water is decreased until it reaches 5 ppt. Result of research indicates that the highest level of survival and growth of Nile Tilapia O. niloticus is found at salinity 17 ppt, while the lowest is salinity 35 ppt. It seems that Nile Tilapia O. niloticus has the high adaptation rate at salinity 17 ppt (82.23 %) and provides the best growth rate (6.43 %/ day).
The Effects Of Addition Palm Sugar Concentration (Arenga Pinnata) Towards Wadi Betok Quality (Anabas Testudineus Bloch)
(2016-04-04) Petrus; Suprayitno, Eddy; Hardoko; Purnomo, Hari
Wadi betok fish is a fermentation product which form is intermediate moisture whole fish, blackish colour, tough textured with specific odour and has a very salty taste. In principle, wadi is made by dry salting (pickling) with concentration of salt is 20%-50% w/w, at room temperature for seven days up to several months in a tightly covered container. High salt concentrations in the manufacturing process of wadi has caused salt content in products very high and made that taste become very salty. The one of alternative to overcome the flavor of one, besides salt also was added some palm sugar (Arenga pinnata). The research was conducted in South Kalimantan. The treatment of wadi from betok fish were added palm sugar with concentrations of 0%, 5%, 10% and 15% (w/w). The parameters tested including phsyco-chemical, organoleptic and microbiological. The main of research, the parameter phsyco-chemical included pH of flesh ranged between 30.770% – 36.348%, aW ranged between 0.828% - 0.862%, salt content ranged between 3.995% - 5.443%, moisture content ranged from 30.770% - 36.348%, protein content ranged between 13.843% - 17.330%,fat content ranged from 1220% - 2.115%,ash content ranged from 0940% - 2.883%, and the TVB 4240 to 6.640. Microbiological parameters include TPC 1.575 x 10-6 – 2.475 x 10-6 CFU and LAB 0.160 x 10-6 - 2.900 x 10-6.
Environmental Characteristics Of Rupat Strait Riau Province
(2016-04-12) Nedi, Syahril
Rupat Strait is one of small strait in Malacca Strait which located in among coastal of Town Dumai area with the Rupat Island in Riau Province. Dumai is known as oil city because there are two of the largest oil companies, namely PT Pertamina and Chevron Pacific Indonesia. In normal conditions, high waves in the Strait of Rupat range 0.07 to 0.21 m, flow velocity 0.22-0.82 m/ s and depths 3-27 m. The middle of the deepest part and the cruise line. Position of Rupat Strait semi-closed with the condition of semi-diurnal tide has potency to cause the happening of oil accumulation in territorial water which can generate the damage of ecosystem territorial waters. Strait Rupat own the variety of various type mangrove representing habitat of various fish type and protect the coast from wave and aberration. Various transportation activity, processing and oil distribution in coastal area of Dumai cause the territorial water of Strait of Rupat gristle to oil contamination.
Fatigue And Stress For Jack Mackerel (Trachurus Japonicus) During Capture Process By Ecg Monitoring
(2016-04-04) Nofrizal; Ahmad, Muchtar; Arimoto, Takafumi
A simulation experiment was conducted in the flume tank to investigate fish stress and physiological condition during swimming in active sampling methods through electrocardiograph (ECG) monitoring. Jack mackerel, Trachurus japonicus of 18.68±0.90 cm fork length (average ± S.D., n = 90) was forced to swim in the flume tank with the swimming speed levels of 1.09-9.12 FL/s at 10, 15 and 22°C respectively. The heart rate was measured by impleting a pair of electrode at pericardial cavity region of fish, which was conected to digital oscilloscope via an bio-amplifier. The highest stress level was occurred at vicinity of the maximum sustained and prolonged swimming speed. This indicated that the heart rate was increasing steadily to reach 3.60 times greater than control value for 10°C, 4.03 for 15°C, and 4.20 for 22°C. The recovery time for post-exercise was monitored to be the longest (up to 543 min) at these swimming speed levels. The physiological conditions of jack mackerels are discussed in relation to the cardiac activities during active sampling gear process.
The Growth Of Motan (Thynnicthys Thynnoides) With Different Rearing And Stocking
(2016-04-11) Sukendi, Sukendi; Putra, Ridwam Manda; Heltonika, Benny
The research was aimed to determined the growth and survival rate of Motan fish (Thynnicthys thynnoides) were rearing in cages with different stockings and locations. The treatments stocking used 40, 50, and 60 fishs/cage with a size 1 x 1 x 1 m. It was conducted on May to October 2010, while the located of rearing was in Kampar river and ponds of Fisheries and Marine Science Faculty of Riau University. Results of this studiy was showed that the best growth was rearing in the cage with stocking 50 fishs/cage on Kampar river, the growth in the absolute weight of 8,61 grams, the growth of the absolute length of 2,34 cm, the daily weight growth rate of 0,5445 %, the daily length growth rate of 0,1750 % and the survival rate 100 %.The research was aimed to determined the growth and survival rate of Motan fish (Thynnicthys thynnoides) were rearing in cages with different stockings and locations. The treatments stocking used 40, 50, and 60 fishs/cage with a size 1 x 1 x 1 m. It was conducted on May to October 2010, while the located of rearing was in Kampar river and ponds of Fisheries and Marine Science Faculty of Riau University. Results of this studiy was showed that the best growth was rearing in the cage with stocking 50 fishs/cage on Kampar river, the growth in the absolute weight of 8,61 grams, the growth of the absolute length of 2,34 cm, the daily weight growth rate of 0,5445 %, the daily length growth rate of 0,1750 % and the survival rate 100 %.
Heat Distribution Analysis With 2 Dimensional Management Of Marine Tourism In Coastal Waters Of Bengkalis, Riau Province: Analysis Of Clostridium Perfringens Bacteria On Fish Mackerel (Cybium Commersoni)
(2016-04-04) Yoswaty, Dessy
Mackerel fish (Cybium commersoni) is one of the foodstuffs consumed by many people and contain high nutritional value, especially protein. Monitoring of marine water quality in coastal waters of Bengkalis to achieve sustainable management of marine tourism can be conducted bacteriological and protect fishery production that cause disease in humans. C. perfringens in mackerel (Cybium commersoni) allegedly increased the amount of pollution caused by domestic wastewater (sewage), anthropogenic activities and rapid development along the coastal waters of Bengkalis. Research objectives were to analyze C. Perfringens in mackerel (Cybium commersoni) as bioindicator of pollution so as to ensure the health and comfort of the local community and tourists. The research method is a survey method, using the media to TSC (Tryptose Sulphite Cycloserine). Mackerel samples obtained from Bengkalis waters, the study in March-April 2012, the data analysis of the total C. Perfringens by West (1989) and Fardiaz (1992). Observations of total C. perfringens on mackerel ranged between 3.1 x 104 to 6.0 x 106 cells/gram sample. Distribution of C. perfringens highest found in gills, compared to the digestive tract and mackerel meat. The results of the identification of bacterial isolates C. perfringen on mackerel fish are Gram-positive cells, stem shape, black in color, in-methyl, colonies, turned cloudy and gas bubbles are formed. C. perfringens on mackerel can grow at 37 oC. C. perfringens in fish mackerel are still below the threshold that could be categorized Bengkalis coastal waters has not been contaminated. Management of marine tourism in coastal waters of Bengkalis can be developed to improve public health and tourists, including protecting coastal ecosystems of Bengkalis.
Impact Of Detergent Waste On Survival, Growth, And Histiphatology On Nile Tilapia (Oreochromis Niloticus) Culture
(2016-04-13) Yosmaniar; Setiadi, Eri
Surfactant is active agent in detergent may affect pollution in the water. The purpose of this experiment is to examine the effect of surfactant on growth, survival, and histopathology of gill, kidney, and liver tissues on Nile tilapia (Oreochromis niloticus) culture. The aquarium with 70 x 40 x 45 cm was used. Fish with 8,46 ± 0,1 cm in total length was used. Stock density was 40 fishes per aquarium. The different of surfactant concentration used in this experiment were as follow: A) 1,5 mg/L; B) 3,0 mg/L; C) 4,5 mg/L; and D) 6,0 mg/L. Each treatment consisted of tree replicates. The experiment was conducted for 2 months. The result showed that The highest of survival (98.33 ± 2.89 %) at B treatment was found, and then followed by C, A and D treatments were 90.00 ± 6.61%, 89.17 ± 9.46%, and 89.17 ± 6.29 % (P>0,05), respectively. The body weight (6.5 ± 0.7 g) was the highest at D treatment then followed by B, and C were 5.72 ± 1.54 g, 6.5 ± 1.39 g and 5.06 ± 0.83 g (P>0.05), respectively. The kinds of damaged of gill, kidney, and liver tissue found such as lesion, swelling, vacuolation, blood, and necrosis were observed
Marine Archaeological Resources In Indonesian Waters As Marine Tourism Destination: Case Studies: Liberty Wreck In Tulamben, Bali And Mv Boeloengan Nederlands In Mandeh Bay, West Sumatra
(2016-04-04) Ridwan, Nia Naelul Hasanah
Nowadays, Ministry of Marine Affairs and Fisheries is in trying to introduce the concept of Maritime Conservation Area that integrates the marine archaeological resources or underwater cultural heritage such as an ancient shipwreck, the site, the environmental ecosystems, and the local community. The purpose of establishing a Maritime Conservation Area is to protect the potential marine archaeological resources with a legal protection by law. Marine archaeological resources are the historical evidence for shipping, trading, and travelling activities of humankind since long ago. The shipwreck site could be a valuable object for further research and education and it has an economic value as a marine tourism destination that could benefits the local community. After designating the site as a Maritime Conservation Area, the shipwreck site could be developed to be a potential marine tourism destination in particularly as a wreck diving spot. This paper highlights the existence of several marine archaeological resources in Indonesian Waters that have potencies to be utilized as a special tourism attraction in this case as a wreck diving destination that could attract a lot of tourists from domestic and abroad. The shipwreck tourism destination could increase the economic life of local communities who reside in the vicinity of the shipwreck site. This paper also would focus on the presence of the Liberty shipwreck site in Tulamben, Karang Asem Regency, in Bali and the MV. Boeloengan shipwreck site in Mandeh Bay, Pesisir Selatan Regency, West Sumatra, which could be utilized as the most important shipwreck diving destination in Indonesian Waters. Protection by law, preservation and utilization efforts of those marine archaeological resources are important to support the development of marine sector in Indonesia that must be based on a comprehensive and integrated research which combines literature study, interviewing local community, diving activities, and the use of technology
Mathematical Model
(2016-04-04) Mubarak; Harsanto, Puji; Galib, Musrifin
In this study the applicability of the hydrodynamics two-dimensional depth-averaged models is investigated. The simulations consists of two-dimensional, vertically averaged finite element hydrodynamics (RMA2), pollutant transport/water quality (RMA4). A constant and same value of Manning’s coefficient is specified throughout the whole domain for all models. Channel outlet PLTU dimension is 510 m in distance from coastal, and 5 m in width, which bed elevation -1 m and the discharge release 1.566 m3/s. Temperature of PLTU outlet is 34 °C and water temperature of coastal area is around 27 °C. The results from simulation describe that water temperature propagation produces the rising temperature at the area conservation, 0.89 °C at north side and 0.90 °C at South side of channel
Molecular Characteristics Of Vibrio Sp Causing Black Tiger Prawn (Penaeus Monodon) Disease In Sumatra And Java Shrimp Ponds By 16s Rdna Sequencing
(2016-04-04) Felix, Feliatra; Nugroho, Titania; Silalahi, Sila; Octavia, Yuslina
Shrimp disease caused by Vibrio sp is one of the main limiting factors in the increasing production in shrimp farming. This disease may kill the shrimp and cause high loss in shrimp culture in South East and East Asia. Samples of ten (10) individual of a ten months cultured giant tiger prawn as well as liter pond water and sea waters were collected from shrimp ponds in Bengkalis Island, Sumatra. Samples of shrimps were also collected from Jepara shrimp ponds in Central Java and they were selected by looking at their behaviour and unhealthy physical characteristics. Amplification, sequencing and bioinformatics analysis of 16S rDNA to identify Vibrio species were conducted in Biotech Center, BPPT Serpong Banten. The results of DNA sequencing of each bacteria isolate were compared to DNA sequences from GenBank, the international DNA bank database. Tracing were made by BLAST (Basic Local Alignment Search Tool) system accessed through the internet at http://www./ncbi.nlm.nih.gov/blast. The result of this study found that of seven strains of Vibrio sp. Bacteria analyzed, five were 97% homologues to V. alginolyticus, V. parahaemolyticus, V. harveyi, V. shilonii and V. vulnificus. Meanwhile, another two strains isolated in this study were not found to be homologues to any of the Gen-Bank listed strain and therefore are considered as indigenous Vibrio sp bacteria from Indonesia.
Natural Food Composition Of Various Types Sea Cucumber From Natuna Waters, Riau Island
(2016-04-04) Sukmiwati, Mery
The aim of this research is to investigate natural food composition of various sea cucumber. Samples were collected in the coastal waters of Natuna, Riau Islands In June 2009. Samples were taken from 2 location: Sepempang and Pengadah beach. The analysis methods use is identification of phytoplankton, frequency of presence phytoplankton and percentage volume of phytoplankton. Of ten species found 19 genus and detritus, include two families : Chrysophyta and Chyanophyta. The highest frequency of precentage volume of food is 13,5% by cymbrella from Sepempang beach and 13,6% by Cymbella from Pengadah beach
Performance Of Red Cherry Shrimp Larvae (Neocaridina Heteropoda) With Different Initial Feed
(2016-04-04) Subamia, I Wayan; Himawan, Yogi
Ornamental Red cherry shrimp (Neocaridina heteropoda) is one of the commodities that are potential to be developed. The development will be conducted through rearing techniques to improve the performance of larvae. Improved maintenance techniques larvae can be done through several approaches, including the feed. The aim of this study was to determine the performance of red cherry shrimp larvae with different initial feed.. Research using Complete Randomized Design (CRD) with 3 treatments and 3 replications. Treatments are food type, there are (A) Water Plant, (B) Artemia, (C) Rotifera, (D) Artemia + water plants (E) Rotifera + water plants. Research vessel in the form of an aquarium measuring 14 X 14 X 14 cm3, with a volume of 1 liter of freshwater and equipped with aeration. The number of larvae per aquarium are 15 larvae that 5 days after hatching with an average length 0.3 ± 0.05 cm. Results showed that the highest achieving for absolute growth in the average length is in treatment D (Artemia + water plants) that are 0.94 ± 0.11 cm, and the highest specific growth lenght reached in treatment D, amounting to 0.032 ± 0.05 cm/day. The highest survival rate achieved in treatment D with 100%.
Plankton And Macrobenthos Density At Multiple Locations Test Of Aquaphonic Application Based On Nile Tilapia (Oreochromis Niloticus) Culture
(2016-04-12) Widyastuti, Yohanna R; Yosmaniar
The aquaponic system is principly a culture technique combining an aquaculture and hydroponic in which fish and plant are reared together in a one system to improve the productivity and benefit of fish culture. In this research, the aquaponic system is made up of nine (9) units of ponds with vegetables substrate as biofilter. Ipomea aquatica ( Kangkung ) used as a economic vegetable in this system. The test used Multiple location of land tophografis which is : a).High, b) midle and c) low land. Differences of land tophografis apparently biodiversity of water plankton and water invertebrate which is important in food chain and ecologis balanced. In this research, plankton and macrobenthos samples taken regulary each week. 4% formaldehide use to conserved sample for laboratoies identification. Species identification, Diversity index (H’) and Heterogeneous species (E) from Shannon-Weaner use as indicator of biodiversity. All data experiment are analyzed descriptively. Nile tilapias (Oreochromis niloticus) were stocked 100/m2, feeted with dry pellet in dosis of 5% to the total biomass, was given two times a day. Fish rearing done on 2 moths. Result shown that plankton species from all test location are similar which is Chlorophyceae dominated the fitoplanton. Zooplanton was found in low number such as Rotifer and Enteromostraca. Plankton density in range of mesotrophic to eutrophic (2000-5000 cel /l). , Diversity index (H’) 0.75-1.57, Heterogeneous species (E)indicated low while Lemnaea sp dominated species of macrobenthos in range of 1 – 6 ind/m2 in size of 2 – 14 cm length. Aquaphonic system be stable at each location. Key word : multiple location, plankton and macrobenthos

Browse

Browsing 1. International Seminar Fisheries and Marine Industrialization 2012 by Title

Results Per Page

Sort Options