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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 219 Documents
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Search results for , issue "Vol 6 (2019): Edisi 1 Januari s/d Juni 2019" : 219 Documents clear
The Effect of Feed Type Different from the Amount, Growth and Life of Mangrove Crab (Scylla serrata) that Lay Eggs Pinta M Hutagalung; Rusliadi Rusliadi; Niken Ayu Pamukas
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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ABSTRACTFeed is one of the important factors to produce maximum production in the cultivation of egg crabs. This study aims to determine the effect of different types of feed on the number of mangrove crabs (Scylla serrata) that lay eggs, absolute weight growth, specific growth rates, and survival. The method of this study is an experimental method (experiment) using a one-factor Completely Randomized Design (CRD) with 4 levels of treatment 3 replications so that 12 units of the experiment were obtained. Each treatment given is P1 = Fly Fish 6% / body weight, P2 = Squid 6% / body weight, P3 = Shrimp 6% / body weight, and P4 = Lemuru Fish 6% / body weight. The crabs used are 180-190 g in size stocked in basket containers with stocking densities for each basket that is 1 tail. Maintenance lasts for 20 days and feed is given as much as 6% of body weight, frequency of feeding twice a day. The parameters observed included observing the number of spawning crabs, absolute weight growth, specific growth rate, feed efficiency, feed conversion ratio, survival rate and water quality. The results showed that the feeding of shrimp feed was the best treatment resulting in the number of mangrove crabs laying as many as 10 tails, absolute weight growth of 93.29 g, specific growth rate of 2.04%, feed efficiency 53.26%, feed conversion 1.88 and livelihood level 83.33%. Based on the results of the study concluded that the provision of different types of feed significantly affected the number of spawning crabs, had a very significant effect on growth and did not significantly affect the survival of mangrove crabs (Scylla serrata) which lay eggs.Keywords : Fresh feed; The number of crabs lay eggs; Growth; Life-long rate; Mangrove Crab; Scylla serrata
IDENTIFICATION FUNGI OF COMET FISH (Carrasius auratus) BY CONVENTIONAL AND PCR (Polymerase Chain Reaction) METHOD Christin Natalia; Henni Syawal; Morina Riauwaty Siregar
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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ABSTRACT            Fungal are a group of microbes that often cause disease in comet fish. Diseases caused by fungi are secondary infections, and can cause more than 50% death. The objective of the study was to find out the species of pathogenic fungi in comet fish and what is the prevalence of fungi that infect comet fish. The method used was survey at the location of the Ornamental Fish Shelter, Jalan Bukit Barisan, Tangkerang Timur Village, Tenayan Raya District, Pekanbaru City. The fish used were 6 - 8 cm as many as 15 tails . Conventional identification includes macroscopic inspect of fungi colonies and microscopic of fungi hyphae. Molecular identification was carried out by PCR (Polymerase Chain Reaction) technique and analyzed with Bioedit, BLASTn and MEGA applications to find out the phylogenetic tree. Research parameters include hyphae size and fungi prevalence. The results of conventional identification techniques found the 4 species of fungi, includes Aspergillus niger, Penicillium sp., Curvularia sp., Fusarium sp.. The result of molecular identification techniques found the species of fungi, includes Curvularia pseudorobusta with homolog value 93%, Trametes corrugate with homolog value 99%.,The conclusion from the identification results found two types of fungi that are pathogenic in comet fish, includes Fusarium sp. and Curvularia sp.. Fungal prevalence from 15 samples was 73,3%. Wide hyphae of fusarium sp. is 1,09 µm, and Curvularia sp. is 1,52 µm. Keywords: Fusarium sp., Curvularia sp., Carassius auratus.
CONTRIBUTION OF INCOME FROM TOURISM SECTORS TO FISHERMAN FAMILIES INCOME IN MALANG RAPAT VILLAGE, BINTAN REGENCY, RIAU ISLAND PROVINCE Sianipar, Sapta Mart Winda; Darwis, Darwis; Arief, Hazmi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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ABSTRACT Researchon contribution of income from tourism sectors to fisherman families income was conducted in May 2018 in the Malang Rapat Village of GunungKijang District, Bintan Regency, Riau Island Province. This study was aimed to calculate the income of fishermen households from fishing efforts, calculate the income of fishermen households from businesses related to the tourism sector, and analyze the contribution of income from businesses related to the tourism sector to the income of fishermen households. The method used in this study is the survey method which is analyzed using the formula of the contribution of the marine tourism sector income and the number of respondents in this study is 21 respondents.               From the results of the research analysis, it was found that fishermen were divided into two types based on fishing gear, namely nylon net fishermen and fishermen bubu. The average income earned by nylon net fishermen in fishing business is around IDR. 65,538,233 per year with monthly income of around IDR. 5,461,519, while the income earned by fishermen in bubu is around IDR. 17,401,544 per year with monthly income of around IDR. 1,450,129. The income received by fishing households from the tourism sector ranges from IDR. 500,000 to IDR. 3,100. 000 per month. The value of the contribution of fishermen's household income from the tourism sector is 62,54% and is classified as a high contribution.Keywords: contribution, income, tourism
MAIN FACILITY UTILIZATION OF CAROCOK TARUSAN COASTAL FISHING PORT WEST SUMATERA PROVINCE Muthia Ayu Nuriza; T. Ersti Yulika Sari; Jonny Zain
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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ABSTRACT This study was conducted in June 2018 at Carocok Tarusan Coastal Fishing Port West Sumatera Province. The purpose of this study ti know the level of utilization of main facilities (docks, port pools, plaster, roads and land) at Carocok Tarusan Coastal Fishing Port. The method used is the survey method. Form the result of the study it was found the level of utilization on land is 54,33% with a total land  area of 2,19 ha, at the docks the level of utilization is 46,50% with a dock length of 100 m, at the port pools area the level of utilization is 61,00% with a port pool area of 30.000 m, at the depth of the port pools the level of utilization is 36,37% with the depth of the port pool of 8 m, at the plaster the level of utilization is 62,5% with a length of plaster 400 m.      Keywords :Level of Facility Utilization, Main Facility,  Carocok Tarusan Coastal Fishing Port.
THE CONTRIBUTIONS OF THE CAROCOK TARUSAN FISHING PORT FOR FISHERIES SECTOR IN WEST SUMATERA PROVINCE Dwita Nurmala; Nofrizal Nofrizal; Jonny Zain
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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ABSTRACT A series survey activities was conducted on July 9th – 17th , 2018 at Carocok Tarusan fishing port, Pesisir Selatan. The purpose of this study is to abtain data and information about contribution of Carocok Tarusan fishing port on fisheries sector in West Sumatera Province. By using survey method, the result showed that the contribution of fishing port in fisheries sector was shown number of fishing boat were1,37% - 2,05%, number of fishing gear were 1,06% - 2,12%, number of boat lift net were 6,78%-8,65%, large net 6,98%-10,68%, troll line 1,76%-2,56% and Gillnet 0,75%-1,36%, number of fisherman were 7,21% - 8,20%, number of fisheries production 4,36% - 5,49% and number of production value were 8,22% - 9,48%. Keywords :Contibution, Carocok Tarusan Fishing Port, Fishery Sector 
THE EFFECT OF THYROXINE (T4) HORMONE TREATED BY IMMERSION TOWARD THE GROWTH AND SURVIVAL RATE ASIAN REDTAIL CATFISH JUVENILE (Hemibagrus nemurus) Dayuni, Mezzi; Pamukas, Niken Ayu; Mulyadi, Mulyadi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
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ABSTRACK            This research was conducted on August 2018 until September2018 at Aquaculture Technology Laboratory of Fisheries Faculty and Marine, University Riau Pekanbaru. The purpose of this experiment was to determine the optimal dose of Thyroxine hormone (T4) treated by immersion on the growth and survival rate of Asian redtail catfish juvenile (Hemibagrus nemurus). The research method used in this study was an experimental method and completely randomized design with four treatments and three replication. The treatmens in this study were control P0 (without thyroxine hormone), P1 (soaking with hormone thyroxine at a dose 0.25 mg / litre), P2 (soaking with hormone thyroxine at a dose of 0.50 mg /litre), P3 (soaking with hormone thyroxine at a dose of 0,75 mg / litre). The best result was treatment on soaking treatment with hormone thyroxine 0,75 mg/litre with absolute growth weight 6.66 g, absolute growth length 5,6 cm, specific growth rate 3,43%, the highest feed efficiency 119,62 %, and feed conversion 0,84 and survival rate 100%.Water quality range at all treatments were: the temperature ranges was from 28 to 29,70C, pH ranges was from 6.8 to 7,3, and DO ranges was from 4.0 to 5,6 mg/L and ammonia was around 0,00151-0,00803 mg/L respectifely.Keyword: Thyroxine (T4), Hemibagrus nemurus, immersion
The Oil Content andthe Diatom Density in TanjungTiram Waters of Batu Bara Regency, North Sumatera Province Bahri S, Aswan; Amin, Bintal; Siregar, Sofyan Husein
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
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ABSTRACT  This research was conducted on july 2018  in Tanjung Tiram Waters of Batu Bara regency, North Sumatera province. It aims to analyze the oil content  and  the diatom density.The sample was analyzedin the Marine Chemistry and Marine Biology Laboratory, Faculty of Fisheries and Marine, Universitas Riau. The survey method used in this research was purposive which consisted of four stations. Each station is repeated in three times. It known that the oil content in water ranged 0,1722 – 0,4341 ppm.According to standard quality value of sea water, the oil content of water has not exceeded the threshold value (<5 ppm). The results of calculating the abundance of diatoms are known to be the highest in station 4 with the number 144 ind / l, while the lowest abundance of diatoms is at station 1 with a number of 97 ind / l. The mostof diatom species found is Nitzschia sp., Skeletonema sp., Leptocylindrus sp., and Coscinodiscus sp.Based on the level of fertility, the abundance of the diatoms in TanjungTiram area is categorized as oligotrophic waters, namely waters that have a low fertility level with a range between 0 - 2000 ind / l.The correlation of oil content and the diatom density are declared in mediocrevalue with coefficient of 0.53.   Key words : Pollution, Oil Content, Diatom, North Sumatera
Effect Of Dolomit CaMg(CO3)2) as Pellet for Intensity of Moulting, Growth and Survival Rate of Shrimp Vanname (Litopenaus vannamei) sari, Chici Arum; Rusliadi, Rusliadi; Mulyadi, Mulyadi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
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ABSTRACT             This research was conducted on September 2018 until October 2018 at Aquaculture Technology Laboratory of Fisheries and Marine, University Riau, Pekanbaru. The purpose of this experiment was to determine the optimal dose of dolomite CaMg(CO3)2) as pellet for intensity of moulting, growth and survival rate of vanname shrimp (Litopenaus vannamei). The research method use in this study was an experimented method and completely randomized design with five treatments and three replication. The treatments in this study were (P0) control, (P1) 2 mg/ kg, (P2) 3 mg/ kg pakan, (P3) 4 mg/ kg pakan, (P4) 5 mg/ kg. The result shown that adding dolomite at vanname shrimp’s feed of 3 mg/kg (P2) treatment of the best, especially moulting 132 ind, absolute growth weight 0,72 g, daily growth rate 1,57% and survival rate 95%. Water quality range at all treatments were the temperature range was from 28 to 310C, pH ranges was from 5 to 7, dissolved oxygen was from 4,1 to 6,2 mg/L, salinity was from 16 to 18 ppt and ammonia was around 0,00001-0,0053 mg//L.Keywords: Dolomite, moulting, Vanname shrimp.
Type and Density of Zooplankton in The Pekak Lake Buluh Nipis Village, Siak Hulu Sub District, Kampar District, Riau Province S Sinaga, Jefri Daniel; Siagian, Madju; Simarmata, Asmika Harnalin
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 existence of human activities around the Pekak Lake producing organic  and anorganic materials that enter the water and affects the type and density of zooplankton in general. To understand the types and density of zooplankton in the Pekak Lake, a research has been carried out in March-April 2018. There were three sampling points, namely in the inlet, in the middle of the lake, and in the end of the lake. In each sampling point, the water was sampled from the surface and 0.75 m depth. Water quality parameters measured were temperature, transparency, dissolved oxygen, pH, nitrate and phosphate. Sampling were conducted 3 times, once/week. Results shown that there were 15 species of zooplankton present and they were belonged to 12 classes, namely Ciliata (3 species), Crustacea (2 species), Copepoda (1 species), Sagittoidae  (1 species), Insecta (1 species), Cladocera (1 species), Adenophorea (1 species), Suctoria (1 species), Monogononta (1 species), Sarcodina (1 species), Seisonidae (1 species), Rotifera (1 species). The zooplankton density in the Pekak Lake was 2.466-5.277 organisms/L. The most common zooplankton in Pekak Lake is Ciliate. Water quality parameter values are as follow, temperature was 27-30 0C, transparency was 68.5-76.8 cm, dissolved oxygen was 5.13-6.4 mg/L, pH  5.0, CO2 was 8.23-15,58mg/L, nitrate was 0.05-0.19 mg/L and phosphate was 0.06-0.11 mg/L. Based on the density of zooplankton, the Pekak Lake can be categorized was oligotrophic.Keywords : Kampar River, Oxbow Lake, Eutrophic, Ciliate.
Growth andsurvivalrateofBaung (Hemibagrus nemurus) in PeatWaterby Giving Different Amounts ofMolasses inBioflokTechnology Nurhasim, Nurhasim; M.Tang, Usman; Putra, Iskandar
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
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                                                    ABSTRACT ThisresearchwasconductedfromFebruary toApril2018attheLaboratory ofAquacultureTechnology,FacultyofFisheriesandMarine,UniversityofRiau.The purposeofthisstudy wastodeterminetheeffectofdifferentmolassesonthegrowth andsurvivalrateofbaung(Hemibagrusnemurus)onbiofloctechnology inpeat swamp water. The  designused was a complete randomized design with five treatmentsandthree replications.The treatmentappliedis(1) control,(2)50ml/m3, (3) 100ml/m3,(4)150ml/m3(5)200ml/m3.Provisionofthebestmolassesis100 ml/m3,withthedoseof molassesabletoincreasethegrowthandsurvivalrateof baung(Hemibagrusnemurus),Thegrowthofanaverage weightof5.72g,growthof anaverage lengthof 9.16cm,absolute weight4,48g,absolute length4.46cm, specific growthrate3.83%,feed  efficiency109.99%, survival  rate90.33%,  floc volume7 ml/l, and optimal waterquality. Keywords: Molasses,Biofloc, Growth, SurvivalRate, Baung. 

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