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INDONESIA
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan
Published by Universitas Riau
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Core Subject : Science,
Earth & Planetary Sciences
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Articles 2,919 Documents
 31   32   33   34   35 
THE EFFECT OF OVAPRIM DOSES ON OVULATION AND EGG QUALITY OF INGIR-INGIR (Mystus nigriceps) Deasy Arisandy; Sukendi '; Netti Aryani
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

The research was conducted in June 2014 in the Fish Hatchery and Breeding Laboratory of the Fisheries and Marine Sciences Faculty University of Riau. The research was to determine the effect of ovaprim on ovulation and egg quality of ingir-ingir (Mystus nigriceps). The method used is an experimental method with a completely randomized design (CRD) with four treatments and three replications. Treatment in this study were P0 (NaCl 0,9% dose of 1 ml / kg body weight) P1 (ovaprim dose of 0,5 ml / kg body weight) P2 (ovaprim dose of 0,7 ml/ kg body weight) and P3 (dose ovaprim 0,9 ml / kg body weight).The results of the research showed that the ovaprim doses 0.7 ml / kg body weight gave the optimum result inter of latent period (6,37 hours), number of egg striping (315 eggs / gram broodstock), increase the diameter eggs (0,038 mm) and percent increase egg maturation (14,3%), and the ovisomatik index (9,85%).Keywords: Ovaprim doses, Ovulation, Ovisomatik indeks and egg quality
SEDIMENT STRATIGRAPHY IN COASTAL WATERS OF WESTERN PART OF RUPAT STRAIT RIAU PROVINCE Rinu Maido; Rifardi '; Bintal Amin
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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The study aims to describe Lithostratigraphy based on verticaldistribution of sediment fractions in western part of Rupat Strait. The sedimentsamples were taken in May 2014 from 9 sampling points and 3 stations by usinggravity cores. The position of the sampling point was determined by usingpurposive sampling method. Each sample obtained from core samples wasdivided into 3. All the sediment samples were analyzed by using mechanicalanalysis. The analysis showed that the sediment in the area was dominated by thesand fraction with percentages ranging from 58.59 to 98.31 % with the highestpercentage was located at the sampling point 2 middle layer and the lowest at 5sampling points lower layers. Sediment grain size did not undergo significantdifference vertically. At station 1 the changes in sediment grain size was onlyfound at the sampling point 3 middle layer. Sediment grain size at station 2changed at the sampling point 4 middle layer and the top layer 6 sampling pointswhile the grain size of the sediment contained in station 3 occurs at the samplingpoint 7 layers above and below the layer 9 sampling points. Based on clusteranalysis the sediment layer of western part of Rupat strait IV can be divided intogroups based on five characteristics of sediments and in each group showed thatthe difference was not significant.Keywords : Stratigraphy, Sedimentary, Rupat Strait
A study on fish composition in the Air Hitam River, Pekanbaru, Riau Province ', Firdaus; Pulungan, Chaidir P.; ', Efawani
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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The Air Hitam River was inhabit by numerous fish species, information on these fishhowever is almost none. To understand the composition of fish in that river, a study hasbeen conducted from February to March 2014. There were 3 sampling sites, in theupstream (S1), middle (S2) and downstream (S3) of the river. The fish was sampledusing several net types (mesh size 0.1 – 1.0 inch), electrofoshing and line fishing. Datawere then analyzed to find out the diversity (H’), evenness (E) and dominance (C)index. The fish sampled were identified based on Kottelat (2013). The fish speciespresent were consisted of 34 species (15 families). There were Notopterus notopterus,Cyclocheilichthys apogon, Desmopuntius gemellus, D. hexazona, Esomus metallicus,Hampala macrolepidota, Labiobarbus leptocheilus, Osteochillus vittatus, Parachelaoxygastroides, Rasbora argyrotaenia, R. einthovenii, R trilineata, Tynnichthyspolylepis, Trigonopoma gracile, Pterygoplichthys pardalis, Ompok rhadinurus,Pseudeutropius brachypopterus, P. moolenburghae, Mystus nigriceps,Hemirhamphodon pogonognathus, Poecilia reticulata, Monopterus javanensis,Pristolepis grooti, Oreochromis niloticus, Anabas testudineus, Helostoma temminckii,Belontia hasselti, Osphronemus goramy and Sphaerichthys osphromenoides,Trichopodus leerii, T. trichopterus, Trichopsis vittata, Channa lucius and C. striata.The most common fish was Pterygoplichthys pardalis that was present mainly in theS2. Trichopodus trichopterus and Trichopsis vittata were distributed evenly along theriver, as they were found in each sampling area (Fi 100%). In the Air Hitam River, thehighest H’ value (3. 671) and the highest E value (0.880) were in the upstream, whilethe highest C (0.476) was in the middle stream.Keyword: Freshwater fish composition, Air Hitam River, Pekanbaru, Riau
STUDY ON THE CONTENT FORMALINFRESH (Restrelliger Sp) CONTAINEDMARKET OF PEKANBARU CITY Wardhana, Akbar; Mus, Sukirno; ', Sumarto
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
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This study aimed to evaluate the safety quality fresh Restrelliger Spsold in the market around of Pekanbaru. Fresh Restrelliger Sp obtained from 5 traditional markets and 3 modern market in the city. A total of 24 samples were analyzed on the content of Formalin, Coliformbacteria, and Vibrio Spbacteria. pH condition. The results of the study concluded that there was no evidence of illegal ussing food additives ( formalin ) in all of the market around of Pekanbaru. No Coliform bacteria and Vibrio parahaemolitycus on fresh Restrelliger Sp. whereas the V. cholerae bacteria found in one sample. In one of the market. The results of the analysis of pH show that the range of pH amount 5.67 to 6.15.Keywords: Restrelliger Sp, Fish Quality, Formalin
GROWTH AND SURVIVAL RATE OF GIANT PRAWNS (Macrobrachium rosenbergii De Man) ON DIFFERENT STOCKING DENSITY Novri Iswandi; Rusliadi '; Iskandar Putra
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
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The research was conducted for 30 days from september to october 2014 which was held at the Great Hall of Freshwater Aquaculture Sukabumi, West Java Province. The aim of this research was to determine the different stocking densities for growth and survival rate of Giant prawns (Macrobrachium rosenbergii De Man). The method used is the experimental method with completely randomized design (CRD) of the factor with 3 levels of treatment. The treatment were applied, namely P1 of 40 tail/m2, P2 of 60 tail/m2, P3 of 80 tail/m2.The best results showed that stocking density of40 tail/m2. Total absolute body weight, absolute body length, daily growth rate and survival rate was 5,5 grams, 2,65 cm, 2,25 %/day and 92,5 % respectively.Water quality parameters were recorded namely temperature is 24-26º C, pH 6-7,5 and dissolved oxygen (DO) from 4,3 to 4,8 ppm / l . Keywords: Giant prawns, stocking density, tokolan, growth
Phosphate Concentration from the Water around the Floating Cage Fish Culture Area and from the Area with No Cage, in the DAM Site of the Koto Panjang Reservoir Ali Akbar Navis; Asmika H. Simarmata; Clemens Sihotang
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
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In floating cage fish culture activities, degradation of feed remain and fish feces willincrease the Phosphate content in the surrounding area. A research aims to understand thePhosphate concentration in the water from the cage area and from the area that has no cage hasbeen done from July - November 2014. There were 3 stations, namely 200 m upstream nof thecage area (S1), in the cage area (S2) and 200 m downstream of the cage area (S3). Samplingswere conducted in the DAM site 4 times, once/2 weeks. In each station, water samples werecollected from 3 different depth, surface; 2 secchi and 4 secchi depths. Parameters measuredwere pH, Phosphate concentration, Dissolved Oxygen, transparancy, temperature and depth.Results shown that the concentration of Phosphate in the S1was 0.03 mg/L – 0.13 mg/L; in theS2 was 0.13 mg/L – 0.35 mg/L; and in the S3 was 0.07 mg/L – 0.22 mg/L. The highestconcentration of the Phosphate was in S2, while the lowest was in the upstream (S1). Phosphateconcentration indicates that the DAM site area of the Koto Panjang can be classified aseutrophic, especially in the area around the cage. Other water quality parameter measured weretemperature: 30.6oC – 31oC; transparancy 1.98 m – 2.55 m; depth 27 m – 40 m; pH 5 and freeCO2: 4.66 mg/L- 15.31 mg/L. the values of water quality parameters indicate that the waterquality in the DAM site of the Koto Panjang is good and might be able to support the life ofaquatic organisms in thet area.Keywords: phosphate, cage fish culture,Koto Panjang Dam
Dissemination of Breeding Technology at Hatchery Unit in XIII Koto Kampar District, Kampar Regency Riau Province Yohana Frizia; Ridar Hendri; Kusai '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
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This study was conducted on August in XIII Koto Kampar District, Kampar Regency Riau Province. This study aims to determine the general picture disseminated of breeding technology, process technology dissemination of breeding obtained by fish farmers, people or institutions that disseminate technology and problems in the process of disemination.The method used method case study.Objek of study methods is 3 hatchery unit and respondents of this research were owner hatchery .These hatcheries were Graha Pratama Fish in the Koto Mesjid and Akuafisha in the Pulau Gadang . The technology which disseminated were temperature shock technology , hatchery with funnel method , and application methods of fish hatchery. Source dissemination come from university, BBPBAT Sukabumi and Jambi. This Method of dissemination was training. Problems in the dissemination process was BBI Center and BBI Lokal not yet find a breeding technology. Beside it, indirect method dissemination such as using communication media was rarely, dissemination activities are rarely performed and participants in the dissemination should hatcheries certificateKaeyword : Dissemination, Seeding Technology and People’s Hatchery Unit
Sebaran Fraksi Sedimen Dasar Permukaan di Perairan Pantai Pulau Topang Provinsi Riau Mulyadi, Hade; ', Mubarak; Yoswaty, Dessy
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
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Abstract:A study was conducted in december 2013 in coastal waters Topang Island RiauProvince, with a view to learn the environmental conditions under the deposition ofoceanography and physics. The method used is a method of surveys carried out at 12 stationswithout repetition and 2 times repetition on calculations of the quality of the waters .Theresults of research shows that bottom sediment surface waters can be grouped into threefaction sediment is sandy mud , muddy sand and sand .Sand faction dominating at anyresearch station with type 2 is sand and muddy sand .Based on the parameter of sediment asthe diameter of average (Mz), sorting ( ), skewness (Sk1) and kurtosis (KG), physicaloceanographic conditions in Western and Eastern parts of the island tend to be stablecompared to the North and South. Current speed of surface affect the distribution of thebottom sediment surface.Key words: bottom sediment surface., Coastal waters, Topang
Benthic Foraminifera Distribution in the Sediment of Western Part of the Horizontal Section In Rupat Strait ', Rosshalia; ', Rifardi; ', Zulkifli
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
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This research was conducted in May 2014 in the western part of the RupatStrait Riau Province with its aims to determine the distribution of benthicforaminifera and sedimentation relative velocity. The determination of samplingpoints was done by using purposive sampling method. The sediments were taken byusing Eckman Grab then preserved with Rose Bengal mixed by formalin .The results showed that benthic foraminifera was found in higher amounts inthe north and south of the study site. By contrast, the smaller number was found inthe middle of the strait and the shoreline with the mangrove. These areas werepredominantly influenced by the high flow of current and mangrove area, withrelatively moderate sedimentation velocity. In West Rupat the waters was dividedinto 3 clusters based on the data distribution of benthic species foraminefera namely:group I was found in the northern, central and southern part of the study sites,characterized by dominating species of Reussella hayasakai, Textularia orbica andBolivina humilis and sediment classified as very fine sand; group II was found in thenorthern part of the study site with species that as dominated wereFissuripolymorphina aequicellaris, Rosalina Concina and Bolivina humilis with highorganic matter content in the study sites; group III was found in the southern part ofresearch location with the dominating species were Ammonia beccari, Textulariaarticulata and Textularia neoconica with the bottom sediments belonging to very finesand.Keywords : benthic foraminifera, sediment, Rupat Strait..
THE DISTRIBUTION OF TOXIC BHENTIK DINOFLAGELLATE Gambierdiscus sp. Prorocentrum sp AND Ostreopsis sp ON Sargassum sp IN THE COASTAL OF SUNGAI NIPAH, PESISIR SELATAN REGENCY, WEST SUMATRA PROVINCE Winda Eboni; Thamrin '; Mubarak '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
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Ciguatera Fish Poisoning (CFP), can be caused by ciguatoxin from groups such as the bhentic dinoflagellate of Gambierdiscus sp., Ostreopsis sp., and Prorocentrum sp.,the bhentic dinoflagellates potentially toxic. In addition as bhentic organisms these three bhenthic dinoflagellates also found associated with brown algae, red algae, coral fragments and also attached on seaweed . Research on the distribution of the toxic dinoflagellate benthic Sargassum sp in the coastal waters of Sungai Nipah Beach of Pesisir Selatan Regency of West Sumatra Province was conducted in April 2014 with the to analyze the abundance and distribution of benthic dinoflagellate Gambierdiscus sp. Ostreopsis sp Prorocentrum sp. The study was conducted by taking a substrate attachment of benthic dinoflagellates from the seaweed, and then put them in a plastic screen of sea water. For the releasing of the benthic dinoflagellate the process agitation and filtration were used with filter of 250μm and 20μm. The samples observed by using microscope and Sedgwick Rafter Cell. The highest abundance was found at stations with high density (45.85 cells/gram). The research showed that the abundance and distribution of toxic dinoflagellate types of seaweed in coastal waters in Sungai Nipah was more influenced by local currents.Keywords : Dinoflagellata, Distribution, Sargassum sp, West Sumatera

Page 33 of 292 | Total Record : 2919

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