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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 EFFECT OF DIFFERENT STOCKING DENSITIES ON THE GROWTH AND SURVIVAL OF BAUNG FISH (Mystus nemurus) ON THE MAINTENANCE MEDIA ADDED PROBIOTIC Jonathan Erik Hutajulu; Niken Ayu Pamukas; Rusliadi Rusliadi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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ABSTRACT                The aim of the study was to determine the best stocking density in the addition of probiotic for increasing the growth and survival rate of fish seed baung (Hemibagrus nemurus). This research was conducted for 40 days from May 11 to june 19 2019, in the Aquaculture Technology Laboratory of the Faculty of Fisheries and Marine University of Riau. This research was using the experimental method by completely random design (RAL) with 4 levels of treatment three replications. The treatments applied P1 = Maintenance with stocking densiy 200 tail/m3, P2 = Maintenance with stocking densiy 300 tail/m3, P3 = Maintenance with stocking densiy 400 tail/m3, P4 = Maintenance with stocking densiy 500 tail/m3. The results showed that the addition of different bioboost doses showed a significant effect (P <0,05) on absolute weight growth (Wm), absolute length growth (Lm), specific growth rate (LPS), feed conversion ratio (FCR) and no significant effect (P> 0,05) on survival rate (SR) of baung fish. The best treatment is stocking density 200 tail/m3 (P3) which produces absolute weight growth of 5,09 g, absolute length growth of 4,29 cm, the specific growth rate of 3,35 %, feed conversion ratio 1,42 and survival rate 95,27 % . Keywords: Stocking Density, Bacillus sp, Growth,  Mystus nemurus.
COMUNITY STRUCTURE OF GASTROPODS ON MANGROVE AREAS OFSUNGAI RAWA VILLAGE SUBDISTRICT SIAK REGENCY OF RIAU PROVINCE Mukhlis Alfarys; Efriyeldi Efriyeldi; Syafruddin Nasution
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
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Abstract The class of gastropods is the largest class in Phylum Molluska. One of the habitat that is inhabited by gastropod is mangrove forest. The structure of the gastropod community of phylum molluska is influenced by changes in environmental factors. This research was conducted in Sungai Rawa Village Subdistrict Siak Regency, in October 2018. The purpose of this research is to know the structure of gastropod community which includes: type, density, diversity, uniformity, dominance, distribution pattern. The characteristics of environmental as sediment type and water quality is considered important for support the research data. The research method used is the survey method where sampling using line transect method was done on 3 stations. 15 gastropods species found in mangrove areas with the value of gastropod density obtained at each research station ranged from6.333-10.667 ind/ha. The value of its diversity index ranges from 2,44-3,07. while the value of uniformity obtained is 0,81-0,86 and the dominance value ranged from 1,29 to 1,95. Characteristics of mangrove area in Sungai Rawa village is good.Kata Kunci:Gastropoda, Community structure, Characteristics
THE EFFECTIVENESS OF USING HETEROTROPHIC BACTERIA TO RED NILE TILAPIA’S GROWTH (Oreochromis nilloticus) Ismail Abdurrahman Siregar; F. Feliatra F. Feliatra; Dessy Yoswaty
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
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ABSTRACT This study conducted in February-March 2019 at Marine Microbiology Laboratorium, Faculty of Fisheries and Marine, Riau University, Pekanbaru. The aim of this study is to know the effect of using heterotrophic bacteria to red nile tilapia’s (O. nilloticus) growth and to know the amount of heterotrophic bacteria in a pool. The study uses experimental method which is Completely Randomized Design (CRD).There are three treatments and three repetitions for each treatment. P1: Administration of heterotrophic bacteriaBacillus cereus 15ml/container, P2: Administration of heterotrophic bacteria Vagococcus fluvialis 15ml/container, P3: Administration of combining both heterotrophic bacteria(Bacillus cereus and Vagococcus fluvialis)15ml/container, and P4: Without the administration of heterotrophic bacteria. The heterotrophic bacteria is administered once a week. The result of this study shows that the best treatment is P3 by using the combination of both heterotrophic bacteria. Average weight growth is 5.38 grams, absolute weight growth is 3.03 grams, length increases 1.09 cm, spesific growth rate of fish is 14.45%. The parameter of water quality are temperature ranges between 26-280C, DO 3-5.75, pH 7.7-7.9 and ammonia 0.61-1.62 mg/L.Key Words:Heterotrophic Bacteria (B. cereus dan V. Fluvialis), Red nile tilapia(O. nilloticus
Reproductive Biology Of Motan Fish (Thynnichthys Thynnoides) From Teluk Petai Lake, Buluh Nipis Village, Siak Hulu District, Kampar Regency, Riau Province. Friska Girsang; Ridwan Manda Putra; Eddiwan Eddiwan
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
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 ABSTRACT Motan fish (Thynnichthysthynnoides) is one of the fish most found in the lake of Petai. This research was conducted in March until May 2019. Samples were captured using fishing rods and sempirai fishing gear. Sampling is done 5 times in 3 months. The reproductive biology aspects measured were sexual characteristics, sex ratio, gonadal maturity level, gonadal maturity index, fecundity, and egg diameter. The sample is 109 tails (72 males and 37 females). The comparison between male and female is 2: 1. In this study, there were more male fish. The level of gonad maturity found in male and female fish TKG I-V.Gonad maturity index 0.10 - 19.08%, fecundity of 5526-9204 grains / fish and egg diameter of 0.22-025 mm. Keyword: Sex ratio, gonadal maturity level, gonadal maturity index, fecundity
Trophic Status of the Koto Tibun Reservoir, Kampar District, Riau Province Based on Trophic Index (TRIX) Irwan Nababan; Clemens Sihotang; Asmika Harnalin Simarmata
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
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Abstract  Koto Tibun Reservoir receivedwater from the Tibun River.In the area around the upstream of the river, however, there are many human activities that nutrient the river and as a consequence affects the trophic status of the dam. To understand the trophic status of the dam based on Trophic Index (TRIX), a research was conducted in February – March 2018. There were 3 sampling stations namely Station 1 (riverine zone), Station 2 (transition zone) and Station 3 (lacustrine zone). Samples were taken once/week. Water quality parameters measured were DIN (Dissolved Inorganic Nitrogen), total phosphorus, dissolved oxygen, chlorophyll-a, transparency, temperature and pH. Results shown that the transparency was 75.3–78.6cm, temperature 25.5–25.80C, pH 5, total phosphorus 0.13–0.19 mg/L, DIN 0.45–0.50 mg/L, chlorophyll-a 3.10–3.97 μg/L and oxygen saturation 57.17–68.17 %. The TRIX value ranged from 2 to 2.5 and indicates that the Koto Tibun Reservoir can be categorized as mesotrophic. Keyword :Koto Tibun Dam, Water quality, Nutrient, Mesotrophic
Extensive fishing Carrying Capacity oftheFPK Reservoir, Riau University Based on Chlorophyll-a Ayunanda Mustika Sari; Asmika Harnalin Simarmata; Madju Siagian
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
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ABSTRACT               Carrying capacity is defined as the ability of aquatic environment to support the life of organisms in that area. A study aims to assess the extensive fishing carrying capacity of the FPK reservoir based on primary productivity (chlorophyll-a content), has been conducted in November-Desember 2018. There were 3 stations, namely Station 1 (inlet area), Station 2 (in the middle of the reservoir) and Station 3 (outlet area). Water quality parameters measured were temperature, transparency, pH, dissolved oxygen, CO2, nitrate, phosphate, and chlorophyll-a concentration. The concentration of chlorophyll-a indicates that the extensive fishing’s carrying capacity of the reservoir was 0.31 tons/year. Water quality parameters were as follows: transparency ranges from 66.7-106.8 cm, temperature   28-29°C, pH 6, dissolved oxygen 2.52-2.66 mg/L, free CO2 6.7-9.83 mg/L, nitrate 0.3667-0.4118 mg/L, phosphate 0.2080-0.2154 mg/L, and concentration of chlorophyll-a was 12.78-15.96 µg/L. Keywords:Carrying capacity, Produktivitas Primer, Fitoplankton, Reservoir, Water quality
IMPROVEMENT OF TIGER BARB QUALITY (Puntiustetrazona) USING DIFFERENT DOSAGE OF CARROT FLOUR Irwin Sukhairi; Rusliadi Rusliadi; Usman M. Tang
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
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                                      ABSTRACT The purpose of this study was to determine the effect of adding carrot flour (Daucuscarrota L) to artificial feed on the brightness of the color of Tiger barb. The method used in this study is the experimental method using a completely randomized design (CRD) of 1 factor with 4 levels of treatment, and 3 replications.The dose of carrot flour in this study was 0% (control), 5%, 10%, 15%. The feed was tested on Sumatran fish measuring ± 3 cm long which was maintained in an aquarium measuring (30x40x40) cm3. The parameters measured include the brightness of the color, growth, survival, and water quality. The results showed that the addition of carrot flour to feed can increase the color of Tiger barb. The best dose is 15% which can increase the brightness of color 3.53, absolute weight growth of 0.54 grams, and growth of absolute length of 0.65 cm. Keywords : Puntiustetrazona, Carotenoid, Carrot flour, Feed
Identification of Shrimp From Mangrove Ecosystem, Madong Village Waters, Kampung Bugis Village, Tanjungpinang City, Riau Islands Province. Santrina Banjarnahor; Eddiwan Eddiwan; Ridwan Manda Putra
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
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ABSTRACT This research was conducted in the waters of the village of Kampung Madong, Kampung Bugis Village, Tanjungpinang City, Riau Islands Province. The aim are to identify Shrimp that come from mangrove ecosystem habitats from the waters of Madong Village. There werw 3 sampling areas, upstream (St 1), middle (St 2) and downstream (St 3), of the mangrove ecosystem. Prawns sampling were conducted once/week for a month period, using a spear and bubu. Morphometrical and Morphological  characteristics of the prawns were analyzed descriptively and the prawns sampled were identified. The results found that there were two types of shrimp included in the Penaedae family of the genus Penaeus that live in the habitat of the mangrove ecosystem, namely (1) Panaeus monodon and (2) Panaeus merguensis.  Detail identification showed that they were Panaeus monodon(37 specimens, 17 males and 20 females)  andPanaeus merguensis(42 specimens, 20 males and 22 females).The waters parameters measure in mangrove ecosystem that is dissolved oxygen 7,3-8,1 mg/L, temperature 28-30oC, clarity148-190,5 cm, salinity 25-30 mg/L, pH 6,5-7,5, O27,3-8,1 mg/ l, alkalinity 52-100 mg/l. Keywords: Kampung Madong, Shrimp, Mangrove, Panaeus monodon, Panaeus merguensis 
ANALYSIS OF Cr, Cu, and Zn CONCENTRATIONS IN THE SHELLS (Meretrix meretrix) FROM PANTAI CERMIN OF SERDANG BEDAGAI REGENCY, NORTH SUMATRA PROVINCE Della Afriyola; Bintal Amin; Yusni Ikhwan
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
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ABSTRACT This research was conducted in March 2018 by taking samples of Meretrix meretrixfrom Pantai Cermin of Serdang Bedagai Regency, North Sumatra Province.The purpose of this research was to determine the metal concentrationsof Cr, Cu and Zn in the shells based on the size from different stations, to evaluate the differences in metal concentrations between umbo and periostacum,as well as to find out the level of metal pollution based on MPI (Metal Pollution Index). Analysis of metal concentrations of heavy metal was done byPerkin Elmer 3110 Atomic Absorption Spectroscopy (AAS). The results showed that the highest Cr metal concentration in umbo was found at Station 3 (10,253 µg/g) in large sizes, the highest Cu was at Station 2 in large size (4,173 µg/g) and for Zn was found at station 2 (132,867 µg/g)in large size. Mean while the highest concentration of Cr in Periostacum was at Station 3 (7,320 µg/g)in large size, Cu was at Station 2 (3,747 µg/g) in small size, and for the highest Zn was at Station 2 (98,777 µg/g)in small size. The concentration of Cr, Cu and Zn was higher in the umbo than periostacum. Based on this study, the MPI value of Pantai Cermin was 10,36 which was quite comparable to other studies.  Keywords: Pollution, Heavy Metal,Meretrix meretrix, Pantai Cermin
MOLLUSCA AND ARTHROPODA ABUDANCE IN THE ECOSYSTEM AREA OF MANGROVE SUNGAITOHOR VILLAGE KEPULAUAN MERANTI REGENCY, RIAU PROVINCE Said Nazman Arif; Joko Samiaji; Sofyan Husein Siregar
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
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ABSTRACT  This research was conducted in November 2017 - April 2018 in the ecosystem area of mangrove Sungaitohor Village, Kepulauan Meranti Regency, Riau Province. The aim of the study was to determine the type and abundance of molluscs and arthropods, as well as the species diversity index (H'), uniformity index (E) and dominance index (C) of molluscs and arthropods. The method used was a survey method consisting of 3 stations with transect perpendicular to the coastline. The number of molluscs and arthropods at the study area was 10 species, consisting of 8 species the Molluscs and 2 other species from Arthropods phylum. The average abundance of molluscs and arthropods ranged from 2,11 x 104 – 4,00 x 104  ind/ha and the abundance of molluscs and arthropods between stations was significantly different (P < 0.01). The average Diversity Index (H') was 3.0628 indicating high diversity; the average Dominance Index (C) was 0.1333 indicating that no spesies dominates the site. The Diversity Index (E) was 0.9367 indicating the uniformity of organisms in a balanced state and there was no competition for  places or foods.  Keywords: abundance, molluscs and arthropods, mangrove ecosystem, meranti

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