1. International Seminar Fisheries and Marine Industrialization 2012
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Item Impact Of Detergent Waste On Survival, Growth, And Histiphatology On Nile Tilapia (Oreochromis Niloticus) Culture(2016-04-13) Yosmaniar; Setiadi, EriSurfactant 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 observedItem Plankton And Macrobenthos Density At Multiple Locations Test Of Aquaphonic Application Based On Nile Tilapia (Oreochromis Niloticus) Culture(2016-04-12) Widyastuti, Yohanna R; YosmaniarThe 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 macrobenthosItem Analysis Of Shoreline Changes Of Bengkalis Island(2016-04-12) Abdillah, Yayat; Husrin, Semeidi; Sudirman, NasirThe 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.Item Surface Water Flow Pattern Tambelan Islands Riau(2016-04-12) SyaifuddinResearch ocean current patterns beginning Tambelan performed using the esearch vessel Baruna Jaya VIII of the date of November 4 to 16, . In determining the flow pattern using 75 Khz ADCP measure and to determine the characteristics of the water masses using CTD 911 Plus. The number of points Tambelan research station in waters up to 12 stations. For the data used is the tidal ebb and flow of data from the station Pemangkat Hydro Oceanography Department, Navy. Currents in the water system is mainly influenced by the regional water mass movement, the changing seasons, tides, marine topography and geography, while the water mass characteristics are influenced by water masses characterized by shallow water at high temperature and low salinity. Regionally, the mass of water in the western waters. Float trajectories shown in Figure indicated that the mass of water from the ocean Fasifik into the South China Sea through the Luzon Strait and establish branches toward the Strait Karimata. Even the number of passes through the Strait Karimata float higher than the main route through the Strait of Makassar ITFItem Profile Of Fish Smoking (Pangasius Hypopthalmus) In Riau Province Indonesia(2016-04-12) Leksono, Tjipto; Suprayitno, Eddy; Purnomo, Hari; HardokoThis study was aimed to describe the method and process of traditional fish smoking in Riau Province of Indonesia and to determine the best species of wood among several species of wood commonly used as fuel and smoke source of fish smoking in the province. Survey on smoking catfish was carried in Kampar regency, as the area was becoming a center for the development of catfish (Pangasius hypopthalmus) farming and processing. Some species of wood that commonly used as smoking fuel were including Laban wood (Vitex pubescens), Modang Salawai wood (Cinnamomun porrectum), and Rambutan wood (Nephelium lappaceum). Results had shown that fish smoking in the province was applying direct hot smoking method. The best kind of wood was Laban wood (Vitex pubescens), and so, it became to be a characteristically species of wood for fuel and smoke source of fish smoking in Riau Province Indonesia. The smoked catfish yielded was the most preferred by consumers with the sensory value of 7.3 ± 0.2. The content of total phenols in smoked catfish using Laban wood as smoke source showed the highest content of total phenols (29.17 ± 0.87 ppm), content of total acid 1.42 ± 0.07 %, pH values 6.77 ± 0.08, water content 19.0 ± 1.8 and the value of Aw 0.68 ± 0.02Item Environmental Characteristics Of Rupat Strait Riau Province(2016-04-12) Nedi, SyahrilRupat 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.Item Species Richness And Abundance Of Bivalvia And Gastropoda (Molluscs) In Mangrove Forest Of Dumai City, Riau Province(2016-04-12) Nasution, SyafruddinThe mangrove forest of Dumai house many mollusc species within its narrow habitat. This study focused on the bivalves and Gastropods (molluscs) inhabit the mangrove forest along the coastline. Fourteen species of molluscs were recorded in this survey, eleven of which were gastropoda and three species were bivalves. Species richness and abundance were surveyed at three sites and each site was sampled at ten spots made of 30 spots along the coast. Althogh low in number, Polymesoda expansa and Pharella acutidens were widely distributed across the surveyed sites, while Isognomon ephippium was rare. It was evident from this survey that conservation measures, such as collection quotas need to be established to protect the stocks of those, especially the edible molluscs species in this area. The study also identified two gastropods, Thais lacera and that is known useful pollution bioindicators.Item Toxicity Of Industrial Palm Oil Waste Water And Sub-Lethal Test To Oreochromis Sp(2016-04-12) Syafriadiman; Pamukas, Niken Ayu; Huri, EryanResearch of Toxicity of industrial palm oil waste water and sub lethal test to Oreochromis sp. has been conducted on February 1st to March 1st 2009 in Aquaculture Technology Laboratory, Fisheries and Marine Science Faculty University of Riau. Objective of this research is to determine the concentration of a test material or the level of an agent that produces a deleterious effect on Oreochromis sp. during a short-time exposure under controlled condition. In this study, static 96-h acute toxicity tests were carried out using Oreochromis sp. as test organisms. Probit analysis using the computer software EPA and graphical method were used to caculate the 96-h LC50 depending on data suitability. Results of the 96-h LC50 and Biological Savety Level of the industrial palm oil waste water were 126,06 ml/l and 1.26 ml/l respectivelyItem Study On Patin Fish Macaroni Production As A Local Prominent Product(2016-04-12) Suparmi; Sumarto; Edison; Nainggolan, Adrianus PThis research was conducted in March 2012 at the Laboratory of Fisheris Technology and Food Chemistry, Faculty of Fisheris and Marine Science, University of Riau. The aim of this study was to determine the level of consumer acceptance in the macaroni with adding of fish flesh, and to know the amount of fish flesh appropriate to be added in the manufacture of macaroni and catfish were in accordance with consumer tastes. Macaroni catfish is a product derived from a mixture of flour, water, eggs, fish flesh and with adding of spices mixed to become pasta, then printed with the machinery extruder the last dried in a oven. The method used in this research was the experimental method, which was directly observated in the manufacture of macaroni catfish. The result of this research showed that macaroni catfish can be accepted by consumers both in terms of appearance, taste, flavor and texture because the percentage was 71.25% - 85% from 80 panelist. The best macaroni based on all treatments was macaroni with the addition of 20% of fish flesh (M2). The Characteristics of macaroni catfish 20% (M2) was a faded yellow, the fish smell and the taste was felt and the texture of macaroni was felt hardItem The Growth Of Motan (Thynnicthys Thynnoides) With Different Rearing And Stocking(2016-04-11) Sukendi, Sukendi; Putra, Ridwam Manda; Heltonika, BennyThe 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 %.Item The Composition Of Epiphytic Diatom On Nipah Trees (Nypa Fruticans) At Dumai River Estuary, Dumai City(2016-04-07) Siregar, Sofyan HuseinIn 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 currentItem Tsunami Vulnerability Of Critical Infrastructures In The City Of Padang, West Sumatera(2016-04-07) Husrin, Semeidi; Putera, AprizonBased on historical records and latest studies on seismic activities in Sumatra mega thrust, the city of Padang is predicted to experience earthquake Mw.8 followed by tsunami in coming decades. Many efforts have been made to mitigate the impact of earthquake and tsunami such as: setting up early warning system, arising public awareness through education, and building shelters and tsunami evacuation routes. However, none of the efforts have been directed to the significance role of critical infrastructures. Having learnt from the 2004 Aceh tsunami, the existence of critical infrastructures played a key role in the processes of aids distribution, rehabilitation and reconstruction after the disaster. Therefore, the objective of this study is to assess tsunami vulnerability of 198 critical infrastructures in Padang using Papathoma Tsunami Vulnerability Assessment (PTVA-3) method by considering hydrodynamics, building characteristics, functionality, and physical environment. The analysis shows that more than 50% of critical infrastructure in Padang is highly vulnerable.Item Sedimentological Aspects And Relative Sedimentation Rates In The Dumai Coastal Waters, Riau Province Indonesia(2016-04-07) Rifardi; Syahminan; Suwarni; Butar Butar, Renti; Fidiatur, NunungThe main purpose of this study is to reveal the sedimentary enviroments based on sediment characteristics and relative sedimentation rates. The obtained data are all based on analysis results of core samples taken from the Dumai Coastal Waters located off the north coast of Dumai City Indonesia. Bottom sediment samples were collected at 7 stations in the waters using gravity corer in March 2011. The samples were used for mechanical grain size analysis, ignition loss method, bulk chemical analysis, sand grain composition. In addition, the topmost one centimeter of core samples, which approximately 10 cc of wet sediments, was utilized for benthic foraminiferal study, namely, the study of of L/Tl values to infer the relative sedimentation rates. The Dumai Coastal Waters, Riau Province Indonesia is subdivided into three areas based on the general trend of sediment characteristics and relative sedimentation rates as following: 1) the area near the coast and central area of of the water, both of which are characterized by coarse sediments, high relative sedimentation rates and dominantly terrigeneous sediments, the area off the coast characterized by relatively coarse sediments, rather high relative sedimentation rates and relatively high biogeneous sediments, 3) the area relatively close to the coast characterized by fine sediments, low relative sedimentation rates and high biogeneous sediments. The distribution of crude oil content in sediments indicate that study area under influence of tidal and longshore currents. Judging from the distribution pattern of crude oil content in sediments, sediments polluted by crude oil were transported northwesward and northeastward by longshore currents and spread toward north by tidal currents, of the Dumai Coastal Waters.Item Reproductive Biology Of Belontia Hasselti From The Tambang Village, Kampar Regency, Riau(2016-04-04) Putra, Ridwan Manda; Windarti; Simanjuntak, Esa FBelontia hasselti is belonged to Belontiade family and commonly inhabit flood area and irrigation canals in palm tree plantation areas in Riau. This fish is commonly consumed by local people or reared as aquarium fish. However, information on reproductive biology of this fish is rare. To understand the reproductive biology of this fish, a research has been conducted on February-April 2012. There were 123 fishes (102 males and 21 females) captured (52 to146 mm TL and 2 to 68 grams BW). The sex ratio of male and female is 5:1. In each sampling time there were fishes with 1st, 2nd, 3rd and 4th maturity level. The Gonado Somatic Index (GSI) is around 0.01-10.46 %. Fecundity is around 142-10,041 eggs. Relationship between fecundity and TL is weak (R2=0.01), while the relationship between fecundity with BW is strong (R2=0.99). The egg diameter is 0.98-1.00 mm. Histological study shown that the maturity stages of eggs in the ovary is various. In the 1st maturity level, the ovary consists of non vitellogenic eggs (diameter 0.05-0.18 mm). In the 2nd maturity stage, the ovary consists of non vitellogenic and early vitellogenic (0.15-0.44 mm). In the 3rd maturity level, vitellogenic eggs occur (0.28-1.95 mm) and in the 4th maturity level, most of egg in the ovary are mature (0.3-0.5mm), but there are non vitellogenic and early vitellogenic eggs. This evidence indicates that B. hasselti may be a “partial spawner” and it may spawn their eggs throughout the year.Item The Effects Of Addition Palm Sugar Concentration (Arenga Pinnata) Towards Wadi Betok Quality (Anabas Testudineus Bloch)(2016-04-04) Petrus; Suprayitno, Eddy; Hardoko; Purnomo, HariWadi 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.Item Fatigue And Stress For Jack Mackerel (Trachurus Japonicus) During Capture Process By Ecg Monitoring(2016-04-04) Nofrizal; Ahmad, Muchtar; Arimoto, TakafumiA 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.Item 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 HasanahNowadays, 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 technologyItem Mathematical Model(2016-04-04) Mubarak; Harsanto, Puji; Galib, MusrifinIn 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 channelItem Secondary Intermediate Hospes Of Clinostomum (Trematoda Digenea) In Riau Province, Indonesia(2016-04-04) Riauwaty, Morina; WindartiThe aim of study was to understand the morphology of metacercariae of Clinostomum sp. found in freshwater fishes in Riau, Indonesia as second intermediate hospes. Freshwater fish were collected from Sail river, identified and examined for morphological observation. Encysted metacercariae of Clinostomum were excysted with a needle, fixed in 10% formalin and stained with Semichon’s Acetocarmine. Clinostomum parasites were observed under a stereomicroscope and numbers recorded. The result showed that infected freshwater fish were identified as Trichogaster trichopterus and prevalence of Clinostomum infection to the fish was17,1%. The infected fish had total length between 5,6-11cm, while the weight range was 2,01-28,64 g. The cysts were 1,5-2 mm in diameter, with a thin (c. 0,9 μm wide). There was no spinae in tegument dan had 2 suckers (oral and ventral), posteriorly located genitalia and paired digestive caeca. This digeneans were identified as the metacercariae of Clinostomum sp. This research is the first case of Clinostomum in freshwater fish in Riau, IndonesiaItem Natural Food Composition Of Various Types Sea Cucumber From Natuna Waters, Riau Island(2016-04-04) Sukmiwati, MeryThe 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