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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
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The Association of Pistia stratiotes and Fish in the Dam of the Fisheries and Marine Science Faculty, Riau University Cyntia Uli Artha Sihombing; Efawani '; Deni Efizon
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

The water surface of the dam of the Fisheries and Marine Science Faculty of Riau University is almost covered by Pistia stratiotes and this condition may affect the availability of fish in that area. To understand the types of fish associated with that aquatic plant, a research has been conducted February to March 2017. Based on plant density, there were 3 sampling sites, site 1 (46.19 plants/m2), site 2 (14.6 plants/m2) and site 3 (52.31 plants/m2). A modified quadrant (2 x 2 m, completed with fish trapping net attached) was placed for an hour in each site. Samplings were conducted 4 times, once/week. Results shown that there is a relationship between the plant density and the number of fish as well as the types of fish present. As the density of the plant increase, the number and type of fish present was also increase. The types of fish present are as follows: Trichogaster trichopterus, T. pectoralis, Trichopsis vittata, Rasbora einthovenii, Oreochromis nilloticus, Xenentodon canciloides, and Channa striata. In the lower surface of the plant, there were fish eggs attached. Data obtained indicate that there were 7 fish species associated with P. stratiotes and the community of the plant may serves as hatchery of the associated fish.Keywords : The Dam of the Fisheries and Marine Science Faculty of Riau University, Aasosoation
DESCENT OF MOLLUSKS PRODUCTION TOWARD SOCIAL ECONOMICS LIVELIHOOD’S TRADITIONAL FISHERMEN IN BAGAN ASAHAN PEEKAN VILLAGE TANJUNG BALAI SUBDISTRICT ASAHAN REGENCY SOUTH SUMATERA PROVINCE Sihotang, Meriaty; Hamid, Hamdi; Arief, Hazmi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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This Research had done on April 2017 in Bagan Asahan Pekan village Tanjung Balai Subdistrict Asahan Regency South Sumatera Province. The method of this research is survey method. This research aims to observed change of social economics livelihood’s fishermen after descent of mollusks production in Bagan Asahan Pekan Village. Collecting data had done with observation technique, quisioner and interview technique and anlysis data is descriptif analysis and test t-paired.The result of this research point out that descent of mollusks production have influential to change of social such as change of means of livelihood, education and relation or interaction with family and the other. While change of economics such as more descent income and expulsion’s fishermen.Keyword: Production, Mollusks, Livelihood, Social Economics
Types and abundance of zooplankton in the SamsamSwamp, Kandis Sub-District, Siak District, Riau Province Muzdalifah '; Madju Siagian; Tengku Dahril
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Samsam swamp is located in the peat swamp area and flooded during rainy season. A research aims to understand the type and abundance of zooplankton in the Samsam swamp, has been carried out in March 2016. There were 4 stations, namely S1 is in the upstream (almost no human activity); S2 (around palm plantation); S3 (around the newly planted palm plantation) and S4 (far from palm plantation). Sampling were conducted 3 times, once/week. Results shown that zooplankton in the Samsam Swamp was consisted of 5 Classes (14 species). The most common species was crustacean (4 species). The average of zooplankton abundance was around 194-833 organisms/L, species diversity index (H’) was 2,573-3,596, equatibility index (E) was 0.66-0.92, and dominance index (C) was 0.089-0.274. While the water quality parameters were as follows: temperature: 30-320C, transparency: 30-40 cm, depth: 83-114 cm, pH: 4-5, CO2: 8.66-9.32 mg/L, DO:3.96-4.65 mg/L, nitrate:0.45-0.58 mg/L and phosphate:0.36-0.56 mg/L. Based on data obtained it can be concluded that zooplankton diversity was medium, nodominant speciesand the water quality is able to support the life of aquatic organisms.Keyword :Zooplankton, Kandis Sub-District, Samsam Swamp
VARIABILITY NET PRIMERY PRODUCTIVITY IN INDIAN OCEAN THE WESTERN PART OF SUMATRA Amelia, Nina Miranda; Sari, T. Ersti Yulika; ', Usman
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Remote sensing method was used to analyze the state of the aquatic environment which aims to see the characteristics of the spatial and temporal distribution of concentrations of net primary productivity (NPP) in the western Indian Ocean Sumatra with spatial and temporal analysis. Image data NPP obtained fromsatellite image processing Aqua MODIS Level 4 in 2013. This study uses QGIS 2.18. Net primary productivity (NPP) representatives phytoplankton biomass as the basis for the food chain of aquatic organisms in the ocean. The results of this study showed that the concentration of NPP in the western Indian Ocean Sumatra in 2013 are statistically the highest in February is 739,4 gCm2/day, while the lowest in January is 554,0 gCm2/day. Spatially the concentration of NPP highest tends to be found in the coastal waters because it is influenced by the nutrients, ocean mass, chlorophyll-a and the concentration of NPP the lowest visualization tends to be at off the coast. Need to do further research on concentration NPP insitu.Keywords: Aqua MODIS Level 4, net primary productivity (NPP), the western Indian Ocean Sumatra, spatial and temporal.
THE EFFECT OF GIVING EARTHWORMS (Lumbricus rubellus) FEED DIFFERENT FEEDING FREQUENCY TOWARD THE OVULATION AND HATCHING RATE OF SIBAN (Cyclocheilichthys apogon Val. 1842) EGGS Monalisa Monalisa; Nuraini Nuraini; Niken Ayu Pamukas
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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ABSTRACTThis research was conducted on April until June 2017 in Fish Hatchery and Breeding Laboratory, Faculty of Fisheries and Marine University of Riau. The aim of this research was to know the effect of giving earthworms (Lumbricus rubellus) feed with different feeding ferequency toward the ovulation and hatching rate of siban (Cyclocheilichthys apogon val. 1842) eggs. The method in this research was an experimental method with Completely Randomized Design (CRD) with one factor, four treatments and three replications. The treatment in this research were P0 (the giving pellets as a control feed with frequency three times a day), P1 (the giving Earthworms (Lumbricus rubellus) with frequency twice times a day), P2 (the giving Earthworms (Lumbricus rubellus) with frequency three times a day), P3 (the giving Earthworms (Lumbricus rubellus) with frequency four times a day). The results showed that the best treatment was in P3 (the giving Earthworms (Lumbricus rubellus) with frequency four times a day) which produce latent time 4 hours 9 minutes, the number of eggs the striping average of 76 grains/gram of parent, fertilization rate of 73,20%, hatching rate average of 86,45% and survival rate of larvae average of 83,02%. Keyword : Cyclocheilichthys apogon Val. 1842, Earthworms (Lumbricus 
ORNAMENTAL FISH MARKETING AND AQUARIUM EQUIPMENT IN PEKANBARU RIAU PROVINCE Desi Elpita; Hendrik '; Hamdi Hamid
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
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Research about marketing of ornamental fish and aquarium supplies are carried out from August to September 2015 in the city of Pekanbaru in Riau province. This study aims to determine the area of origin of ornamental fish, fish species were seeded and problems in marketing of ornamental fish and aquarium. The method used is a survey method to determine the respondents conducted by proportional random sampling. The number of respondents who were taken as many as 10 businesses ornamental fish and aquarium from 8 subdistricts.Results of this study indicate that based on where his life ornamental fish marketed in Pekanbaru from Medan (North Sumatra, Bogor (West Java) and Pekanbaru for freshwater species, while kind of seawater derived from Padang (West Sumatra) and Sidoarjo (Jawa East). Ornamental fish species are seeded based on several criteria are Arowana fish and Goldfish fresh water and fish Nemo for this type of seawater. The obstacles faced by entrepreneurs ornamental fish are fish that is seasonal, non-fulfillment of consumer demand because of unavailability of products.Keywords: Marketing, Ornamental Fish and Aquarium, Pekanbaru
The Analysis of Fishculture Bussiness of Sangkuriang Catfish (Clarias sp) in Bersatu Group Kelurahan Tanjung Pauh West Payakumbuh Subdistrict West Sumatera Province Florina '; Hendrik '; Hamdi Hamid
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
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This research was conducted in February 21st until 25th in Bersatu Group, Kelurahan tanjung Pauh West Payakumbuh subdistrict. The purpose of this research is find out the magnitude of investment costs, income and profits and how the feasibility of developing a catfish farming business sangkuriang Bersatu Group in kelurahan Tanjung Pauh. Method used in this research is survey method.Sangkuriang catfish farming business in the Bersatu Group has 3 categories of pools are small, medium and large pool categories. Where the average income Average income derived from the small pool category is IDR 10.800.000 with an average profit of IDR.2.523.000/harvest. The category of middle pool is IDR.25.200.000 with an average profit of IDR 6.802.300/harvest. Large pool category of IDR 39.600.000 with an average profit of IDR 10.847.575/harvest. The result of feasibility analysis obtained is the RCR value of small pool category 1.28. A medium pool 1.36 and a large pond of 1,37. FRR value for small pool category is 24,82%. The middle pool is 31,93% and the large pool is 32,14%. PPC value for small pool category is 4.24 period. The medium pool is 3,13 periods and the large pool is 3,11 periods.Keywords :Bussiness Analysis, Sangkuriang Catfish, Bersatu Group
The Analysis of Total Solid in Red Yellow Podsolic with age 1-20 years the rearing Catfish (Pangasius hypopthalmus) intensively Ibnu Hadzqi; Saberina Hasibuan; Syafriadiman Syafriadiman
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
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Abstract This research aims to determ ine the value of total solid in red yellow podsolic soil pond that rearing catfish intensivley with range ages are 1-5, 6-10, 11-15, and 16-20 years. This research using experiment method especially complate random design method. The research was conducted from july to september 2016 in kota masjid village, Kampar district and in laboratorium of aquaculture, faculty of fishiries and marine University of Riau. The highest value of total solid in water surface is in fish pond with range age 6-10 years (12.901,40). The highest value of total solid in floor water is in fish with range age 6-10 years (17.759,66). The highets of fish production pond is in fish range 11-15 yeras (7,46kg/m2). The highest of life extent is in fish pond with range age 15-20 (95,83%) aand the highest of feed conversion is in fish pond with range age 6-10 (2,03). Based on measurement, the relationship of soil quality parameters and water quality parameters is still quite good. Soil quality parameters measured were pH of soil 6,06-6,28 KBOT 1,45-1,84% and BV 1,69-2,46. Water quality parameters measured are temperature 28,71-29,910C,turbidity,29,11-32,29 NTU, pH of water 6,71-6,88, DO 7,35-8.60 mg/L, CO2 18,62-25,51 mg/L, TOM 6,84-7,87 mg/L, alkalinitas 28,91-35,46 mg/L, and hardness 14,43-17,45 mg/L. Keywords: Total solid, Pangasius hypohtalmus, Red Yellow Podsolic, life extent
Effect of Fermented Water Hyacinth (Eichhornia crassipes) Meal Using A Cow Rumen Fluid in Diets on Growth of River Carp (Leptobarbus hoevenii) Fingerling Ferdhi Aulio Rahmad; Indra Suharman; Adelina '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
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The research was conducted for 56 days from June to August 2016. The aim of this research was to know of river carp (Leptobarbus hoevenii) fingerling on water hyacinth fermentations. This study uses a completely randomized design (CRD) with one factor, five level treatments and three replications. The fish used in this research with size 5-7 cm in 7,2 – 8,6 g in weight. Fish were reared in 1 m3 in cages with stocking density of 20/cage. feeding trials were replacing with soybean meal with water hyacinth fermentation applied to 0, 30, 40, 50 and 60% for 30% protein content. Result showed that fermentation of water hyacinth have significant effect (P<0,05) on growth, feed efficiency, and protein retentions. Replacement 30% of water hyacinth fermentation is the best resposn, produce the highest growth 0,56%, feed efficiency 13,9%, protein retention 17,80% and feed digestion respectively 52,83%.Key word : Leptobarbus hoevenii, Water Hyacinth, Fermentation, Rumen Fluid
ANALYSIS OF MANGROVE FOREST AREA CHANGE USING LANDSAT IMAGE DATA IN ROKAN HILIR REGENCY RIAU PROVINCE Ramadani Safitri; Musrifin Ghalib; Efriyeldi &#039;
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

The research has conducted in November 2016-April 2017 in Rokan Hilir Regency and was aimed to identify and inventory the data of mangrove forest area in 1994-2017 at Rokan Hilir Regency using Landsat image data analysis . The research was conducted by survey method. The quantitative method was used on the change of mangrove forest area observation. The result of 473 RGB composite on Landsat 5 and 564 RGB composite on Landsat 8 image showed the mangrove areas in 1994, 2004, 2007 and 2017 are 31,550 ha, 28,370 ha, 23,357 ha and 19,724 ha. There was a decrease of 3,180 ha in total of mangrove area in 1994-2004, in 2004-2007 was 5,013 ha and in 2007-2017 was of 3,633 ha which if added in the period of 23 years there was a decrease of 11,826 ha of mangrove area. The accuracy test of interpretation results and ground check results obtained a value of 100% accuracy, while the accuracy test between landsat images and the the results of classification obtained 95.6%.Keywords : Mangrove Forest, Change of Area, Landsat Image, Rokan Hilir

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