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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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SEDIMENT AND COASTLINE CHANGE ANALYSIS OF SUNGAI KAYU ARA VILLAGE, SIAK DISTRIC, RIAU Suci Monika Putri; Rifardi Rifardi; Elizal Elizal
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 1 (2020): Edisi 1 Januari - Juni 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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AbstractThe main purpose of study was to find out characteristics of sediment and velocity of coastline change in Sungai Kayu Ara Village which is located off the Siak district, Riau. Sediment samples were collected at 3 stations in coastal area of Meskom Village in September 2019. Stations 1 and 2 are located in the residential area and Station 3 is in the vicinity of the Ara Permai Mangrove Tourism Forest. Coastline change analysis used image data by Landsat 5 TM (1997 and 2009) and Landsat 8 LDCM (2019) which processed by ArcMap10.3..Sungai Kayu Ara village is characterized by sediment fine silt and very coarsed skewed indicated that abrasion and sedimentasion influenced of current and wave. Moderately sorting indicated that the sediment coastal of Sungai Kayu Ara village has rather stable environmentally. Interpretation of image data indicated that the coastal area has been abraded at station 1, that is 84,268 meter/year seen from 1997 to 2019.Keywords: Sediment, Coastline change, Abrasion, Remote Sensing.
Trophic State of Embung AKAPPayung Sekaki DistrictCity of Pekanbaru Based on Trophic Index (TRIX) By: Siahaan, Oloan; Siagian, Madju; Simarmata, Asmika Harnalin
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 1 (2020): Edisi 1 Januari - Juni 2020
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 AbstractTrophic Index (TRIX) can be used to determine the trophic state of waters based on chemical and biological parameters. To understand the trophic state of the Embung AKAPwaters based on Vollenweider’s Trophic Index (TRIX), a research has been conducted in November-December 2018. There were three station, namelyStation 1 (inlet), Station 2 (in the middle of Embung AKAP), and Station 3 (outlet).Sampling were conducted 3 times, once/week.Water quality parameters measured were DIN, total phosphorus, dissolved oxygen, chlorophyll-a, transparency, temperature, and pH. Result shown that the transparency was 24,33–25,83cm, temperature was 29-30°C, pH was 5, DIN was 0,31 - 0,39 mg/L, total phosphorus was 0,09-0,48 mg/L, oxygen saturation was 41,64-58,80 %, and chlorophyll-awas 3,09-7,93 µg/L.Trophic Index(TRIX) value of the Embung AKAP was4,79-5,29, and it can be categorized mesotrophic-eutrophic.Keywords :Vollenweider’s, Trophic Index, Water quality, Eutrophic, Mesotrophic
COMPARISON OF DAY AND NIGHT CATCH WITH DRIFT GILLNET GEAR IN THE OF PASAR II NATAL MANDAILING NATAL REGENCY NORTH SUMATERA PROVINCE Kholidin Yunus Nasution; Bustari Bustari; Ronald Mangasi Hutauruk
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 1 (2020): Edisi 1 Januari - Juni 2020
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ABSTRACTDriftgillnets are gill nets in which the way of operation is left to be washed away in the water, whether it is washed away on the surface, water column or at the bottom of the water. This study aims to calculate the number of catches of  driftgillnet during the day and nightin the District of Natal. The method used in this study is a survey method, where research data are obtained directly to the field by evaluating thedrift gillnet fishing gear operated by fishermen in Natal District.The date analysis used in this study was a t-test (Sudjana, 1982) to find the difference between day and night catches. From the result of the calculation of t-test catches during the day and night there are differences in catches, namely by  and db= 32, then obtained thit= -3,77, is outside the receiving area H0 so that the alternative hypothesis H1 is accepted, meaning that there are differences in catch based on the amount of weight (kg) during the day and night. While to find out the differences in catch based on the number of individuals (tails) namely with and db= 38, then obtainedthit= -3,333, is outside the receiving area H0 so that the alternative hypothesis H1 is accepted, meaning that there are differences in catch based on the number of individuals (tails) during the day and night.Keywords: drift gillnet, catch comparisons, catches day and night
The Effect Different Young Coconut Water in NaCl On Spermatozoa Quality Of Catfish (Clarias gariepinus) During Short Storage Hardini Rika Pangaribuan; Sukendi Sukendi; Hamdan Alawi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 1 (2020): Edisi 1 Januari - Juni 2020
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ABSTRACTThis research was conducted in September 2019 in the fish hatchery and breeding laboratory of the Faculty of Fisheries and Marine of Riau University and Photomocrography laboratory of Mathematics sand Natural Sciences Faculty, Riau  University. The purpose of this study was to evaluate the effect of different in the concentration of  young coconut water on NaCl on sperm motility, viability, fertility, and hatching rates of catfish (Clarias gariepinus) during short storage. This study used a Completely Randomized Design (CRD), with 5 levels of treatment and 3 replications, namely: P0: 0%  young coconut water plus 100% NaCl (Control), P1: 40%  young coconut water plus 60% NaCl, P2 : 50% young water plus 50% NaCl , P3: 60% young coconut water plus 40% NaCl, P4: 70% young coconut water plus 30% NaCl. Semen of this experiment used from 2 male catfish, and was stored  in the refrigerator at 40C . The results showed that the different of  young coconut water concentration in NaCl had a  significant effect on the sperm quality of catfish (Clarias gariepinus) for 96 hours at 12 hour intervals. The results showed that P4 (70% young coconut water plus 30% NaCl solution) was the best treatment with 72 hours optimal storage times with good category (3) with a viability percentage of 51.4%, fertilization rate at 12 hours storage period reached 89.0% with hatching rate 88.5% while at 96 hours fertilization rate is 50.4%, and hatching rate is 78.9%Keywords: Clarias gariepinus, young coconut water, NaCl, qualityof spermatozoa.
Effect of biomass Azolla microphylla on physical parameters of water quality in peat soil ponds Parudan Bunga Ria Barutu; Syafriadiman Syafriadiman; Niken Ayu Pamukas
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 1 (2020): Edisi 1 Januari - Juni 2020
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ABSTRACTThis research was conducted on August - Sept 2018 in the Kualu Nenas Village, Tambang District, Kampar regency, Riau Province. Objective of study was to determine the effect of different biomass A. microphylla increasing physics parameters of water on peatsoil.The method used in this study is an experimental method using a Complete Random Design (CRD) with 1 factor, 4 treatments and 5 replications. The treatment used in this experiment are P0 (without biomass of Azolla michrophylla), P1 (biomass Azolla michrophylla 20 g/m2), P2 (biomass Azolla michrophylla 40 g/m2) and P3 ( biomass Azolla michrophylla 60 g/m2).The water quality parameters measured in this study are, turbidity, TSS and temperature.The results showed that biomass of Azolla microphylla had not significantly different effect on changes in physical parameters of water on peat soil ponds but for description analysis P3 different than P0,P1 and P2. The best results that can improve the physical parameters of peat water are found in the treatment of Azolla michrophylla 60 g / m2 (P3) by increasing the turbidity(12,50 NTU); TSS (150 mg/L) and temperature (26 – 29 0C). Keyword : Azolla michrophylla, Physics parameters, Peat soil
The Effectiveness of Chlorella sp. in Decreasing Nitrate and PhosphateConcentration in The Bioflock System Intensive Aquaculture Waste Geliska Wahyuni; Eko Purwanto; Budijono Budijono
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 1 (2020): Edisi 1 Januari - Juni 2020
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ABSTRACTIn the bioflock system intensive aquaculture, the waste was removed everyday. The waste contain high concentration of nitrate and phosphate.  Effort in reducing those organic matters can be done by usingChlorella sp.   A study aims to determine the effectiveness of Chlorella sp. in decreasing nitrate and phosphate concentration in thewaste was conducted in August 2019. There was a CRD method with 4 treatments, namely the addition of 0 sel/ml (control); 333sel/ml (P1); 3.330sel/ml (P2); 33.300sel/ml (P3) and 333.000sel/ml (P4) of Chlorella sp. in 4 liters of wate water. Nitrate and phosphate concentration in the water were checked in the 1st, 4th and 7th days. Results shown that the highest nitrate increased was in the P1 at the 7th day (138%), while that of the phosphate lost was in the P4 at the 7th day (98%). Based on data obtained, it can be concluded that  Chlorellasp. was not able todecreasenitrate concentration,while of the phosphate was able to decrease in the waste water originated from biofloc system intensive aquacultre. Keywords:Nitrate, phosphate, Chlorellasp.bioflock, aquaculture waste.
The Effect of Tofu Liquid Waste Treatment Using EM4 Biofilter to Reduce TSS (Total Suspended Solid) and COD (Chemical Oxygen Demand) Levels Bakkara, Putri Stephanie; Harahap, Sampe; Purwanto, Eko
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 1 (2020): Edisi 1 Januari - Juni 2020
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 AbstractTofu liquid waste is rich in TSS and COD so it needs to be treated before being discharged into the environment. This study aims to reduce TSS and COD in tofu wastewater using biofilter added to EM4, which was conducted in May-July 2019. The design of this experiment uses 3 kontrols, 3 treatments and 3 replications with consisting of the addition of 17 ml, 20 ml and 23 ml EM4. The treatments were all placed in anaerobic and aerobic drums. Then tofu liquid waste that is biofilter using EM4 is tested to determine the TSS and COD concentrations. The processed waste is then used to raise Carp (CyprinusCarpio) as a test fish. The results of this study indicate that after tofu wastewater is processed using biofilter added EM4, it turns out that the concentration of TSS in water is reduced at P2 (20 ml) which is 150 mg / L and decreases by 97.61%, and the COD concentration is reduced at P2 (20 ml ) ie 106.33 mg / L and a decrease of 98.89%. Goldfish (CyprinusCarpio) in the use of tofu liquid waste that has been processed to get percentage of a livelihood of 93.33% in P2U1. It can be concluded that granting EM4 in Biofilters is able to reduce TSS and COD in the liquid waste industry know and already meet the requirements of raw water wastewater according to regulation Minister of Environment No 5 year 2014.Keyword : Tofu Liquid Waste Effective microorganism 4, Cyprinus Carpio
Otolith Growth Rings Pattern of Pristolepis grootii From the Lubuk Siam and Kampar Kanan River, Riau Province Fadilah, Annisa; Putra, Ridwan Manda; Windarti, Windarti
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 1 (2020): Edisi 1 Januari - Juni 2020
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ABSTRACT  Lubuk Siam oxbow lake and Kampar Kanan Rivers have different ecosystem characteristics and it may affects the growth pattern of fish living in those river. The growth of the fish, however, can be mirrored in the growth patterns in the otolith.  A research aims to understand the pattern of otolith growth rings in the  P.grootii captured from both areas was conducted in July to August 2019. Sampling was done 4 times/ month. Otoliths were saved,  and the growth ring pattern was observed using a binocular microscope. Results shown that the otolith of fish from the Lubuk Siam lake was 3-4.9 mm length and   0.0132-0.0043 mg weight,  while that of the fish from the Kampar Kanan River was 2- 4.3 mm length  and 0.0125-0.030 mg weight. The  fish from the lake   was bigger than fish in the river. However, the fish from the river tend to have more dark rings in the otolith and have heavier otolith than  that of the lake’s fish.  These data indicate that the fish from the river may grew up slowly and face more growth related problem than the fish from the lake.Keywords: Dark Ring, Otolith, Growth Pattern, Sagita, Pristolepis grootii
Community Structure of Bivalve in the Seagrass Ecosystems in the Madong Bay Waters of Bugis Village Tanjungpinang City Riau Islands Yolanda, Tiwi Novia; Adriman, Adriman; Fajri, Nur El
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 1 (2020): Edisi 1 Januari - Juni 2020
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ABSTRACTSea grass ecosystem in the Madong Bay is inhabited by numerous aquatic organisms, including bivalve. A research aims to determine the community structure of bivalve in that seagrass ecosystemhas been conducted in July 2019.There were 3 stations, in the rivermouth, in the bay and in the sea. In each station, there were  2transect lines(25 m length), and distance between the line was 15 m. In each line, there were 4 quadrants(1x1 m2). Sampling was conducted twice a week for 2 weeks. Bivalve present inside the quadrant were sampled manually. Results shown that there were 8 bivalve species present, namelyPlacamen chlorotica, Anomalocardia squamosa, Callista lilacina, Circe scripta, Anadara granosa, Semele cordiformis, Trachycardium rugosum, Anadara gubernaculum. The diversity index (H’) was 1.965-2.242, the uniformity index (E’) was 0.356-0.472 and the dominance index (C’) was 0.225-0.262. The water quality parameters are as follows; Temperature was 29-31 0C; acidity (pH) was 7; Salinity was 30-35 ‰; current speed was 0.14-0.15 m/s and DO was 6.7-6.9 mg/L. Keywords:Circe scripta, diversity index, uniformity index, dominance index 
ANALYSIS FEASIBILITY AQUACULTURE BUSINESS OF KERAPU CANTIK (Epinephelussp.) IN FLOATTING NET CAGES AT POKDAKAN HARAPAN BARU SUNGAI NIPAH VILLAGE NAGARI IV JURAI, PAINAN SELATAN SUB-DISTRICT, PESISIR SELATAN REGENCY WEST OF SUMATERA BARAT Farah Aisyah; Lamun Bathara; Darwis AN
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 1 (2020): Edisi 1 Januari - Juni 2020
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AbtraksThis research was aimed to knowthe total investment, income and profit and then to analyze feasibility aquaculture business of Kerapu Cantik (Epinephelus sp.) in KJA at pokdakan Harapan Baru. This research has been done in 11 February until 22 February 2019. The method used within this research was survey method. There is5 respondents used , they are members of grup pokdakan Harapan Baru who be responsibility people an his own manage floatting net cages. Result of the research showed that the unit KJA 8 net bag have total investme of an average IDR 225.835.000,-,income of an average IDR 71.662.500,- and profit of an average IDR 13.075.000,- per year. And then the unit KJA 10 net bag had total investment of an average IDR 264.101.667,-, income of an average IDR 68.580.000,- and profit of an average IDR 10.125.833,- per year. Analysisfeasibility aquaculture business unit KJA 8 net bag had RCR average value1,21, FRR 5,77% and PPC 10,75 period. And then unit KJA 10 net bag had average value RCR 1,16, FRR 3,81 % and PPC 13,57 period.Keywords: Total Investment, Income, Pofit, Household, AnalysisFeasibility Aquaculture Business, Pokdakan Harapan Baru

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