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Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan
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Earth & Planetary Sciences
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Articles 2,919 Documents
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FISHERIES SECTOR CONTRIBUTION ON COMMUNITY INCOME IN PARDOMUAN NAULI VILLAGE, PEMATANG BANDAR PROVINSI SUMATERA UTARA VILLAGE Marpaung, Juliana; Hamid, Hamdi; Warningsih, Trisla
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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ABSTRACTThis research has been carried out in Pardomuan Nauli Village, Pematang Bandar District, Simalungun Regency, North Sumatra Province in March 2018. The location of the research was purposive, with consideration because the consideration of Simalungun Regency was one of the areas that had extensive land and extensive agriculture and large production for fisheries. The purpose of this study was to identify the types of livelihoods of the community, analyze the working time out of the fisheries, agriculture, livestock, plantations, calculate the income of the people in the fisheries, agriculture, livestock, plantations, analyze the contribution of the fisheries sector to the income of the people in Pardomuan Nauli Village.The results showed that the most dominant livelihood in Pardomuan Nauli Village, Pematang Bandar Subdistrict, Simalungun Regency, North Sumatra Province was agriculture, a side livelihood was only as a support and increase of people's standard of living, for more time between fisheries, agriculture, plantations, farmer farms Spending time in the agricultural sector because agriculture is the main income in Pardomuan Nauli Village, Pematang Bandar District, Simalungun District, North Sumatra Province, the highest income in the fisheries sector is Rp. 11,000,000 / year, the lowest income in the fisheries sector is Rp. 5,000. 000 / yr. The highest income in the agricultural sector is Rp.64,000,000 / year, the income of the people in the agricultural sector is at least Rp. 8,000,000 / year. Community income in the plantation sector is at a maximum of Rp. 13,000,000 / year, the lowest income in the plantation sector is Rp. 5,000,000 / year. Community income in the livestock sector is at a maximum of Rp.21,000,000 / year, the lowest income in the livestock sector is Rp. 8,000,000 / year.The biggest contribution influencing people's income is the agricultural sector. The fisheries sector, the plantation sector, the livestock sector are only complementary and increase the income of the community to improve the economic level of the community.Keywords: Contribution, Sector, Fisheries, Revenue.
RELATIONSHIP CONCENTRATION NITRATE, PHOSPHATE AND SILICATE WITH ABUNDANCE OF PLANKTONIC DIATOM IN THE WATERS OF PANGKALAN SESAI VILLAGE,DUMAI ,RIAU PROVINCE Putri, Zulherija; Nurrachmi, Irvina; Elizal, Elizal
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
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ABSTRACT Diatom is the most primary producer in marine waters and is abundant in surface areas that have sufficient light intensity and are rich in nutrients. This research was held on 12-24 May 2018 in the waters of Pangkalan Sesai village, Riau province. The study aims to analyze the concentration of nitrates, phosphate, silicate and analyze the abundance of planktonic diatoms as well as see the relationship of nitrate, phosphate and silicate against diatomic abundance of planktonic. The method used in this research is a survey method that is to perform observations and sampling directly, then proceed with the identification of planktonic diatoms samples in the laboratory. Water quality measurements are done in situ and ex situ consisting of parameters, physical biology, and chemistry. The concentration of nitrate ranged from 0.0367 – 0.0506 mg/l, phosphate concentrations ranged from 0.0840 – 0.1397 mg/l and silicate concentration of 0.0502 – 0.0692 mg/L. Diatom planktonic was found in the waters of Pangkalan Sesai village as many as 9 (nine) genera. Based on the results of multiple linear regression analyses obtained the value of the physical correlation (R) with the value 0.667 indicates that the relationship between nitric concentration, phosphate and silicate in diatoms is moderate. Then the value of R Square (R2) is worth 0.444 meaning the percentage of donations from the variable nitrate, phosphate and silicate against diatoms is 44.4% and the remaining 55.6% is influenced by other factors.Keyword: The abundance, nitrate, phosphate and silicate, Diatom, Pangkalan Sesai
THE EFFECT OF NATURAL FEED REPLACEMENT WITH ARTIFICIAL FEED ON THE GROWTH AND SURVIVAL RATE OF BLACK GHOST LARVAE (Apteronotus albifrons) Sipayung, Kristin; Nuraini, Nuraini; Alawi, Hamdan
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
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ABSTRACTThis research was conduted on August until September 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 natural feed replacement with artificial feed on the growth and survival rate of Black Ghost Larvae (Apteronotus albifrons). The method in this research was an experimental method with Completely Randomized Design (CRD) with one factor, nine treatments and three replication. The treatment in this research were P1 (Artemia sp. for 40 days),P2 ( Tubifex sp. for 40 days), P3 ( Paste feed for 40 days), P4 ( Artemia sp. for 10 days + Paste feed for 30 days), P5 ( Artemia sp. for 20 days + Paste feed for 20 days), P6 ( Artemia sp. for 30 days + Paste feed for 10 days), P7 ( Tubifex sp. for 10 days + Paste feed for 30 days), P8 ( Tubifex sp. for 20 days + Paste feed for 20 days), P9 ( Tubifex sp. for 30 days + Paste feed for 10 days). The result showed that the best treatment was in P9( Tubifex sp. for 30 days + Paste feed for 10 days) the absolute weight growth was 0,492 grams, the absolute length growth was 4,34 cm  specific growth rate was  16,28 % dan survival rate was 94,4 %.Keyword : Artemia sp. Tubifex sp. Growth and Giant Black Ghost                              (Apteronotus albifrons).
The Effect of Propolis Addition on Feed to Increase the Immune Non- Specific Response in Pangasius hypophthalmus Ahmad Sabri; Iesje Lukistyowati; Morina Riauwaty
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 in April until June 2018 at the Experimental Pond and Laboratory of Parasites and Fish Diseases, Faculty of Fisheries and Marine, University of Riau. The purpose of this study was to determine the effect of the addition of propolis on feed to improve the non-specific immune response of Pangasius hypophthalmus which is maintained in cages. The research method used in this study was an experimental method with a completely randomized design (CRD) consisting of 5 treatments and 3 replications, with the treatment of feeding containing propolis ie P0 (without the addition of propolis), P1 (addition of propolis600 ppm / kg of feed ), P2 (addition of propolis 700 ppm / kg of feed), P3 (addition of propolis 800 ppm / kg of feed) and P4 (addition of propolis 900 ppm / kg of feed). The test fish used was jambal siam fish with a size of 8-10 cm as many as600 tails. The parameters measured are; total leukocytes, leukocyte differentiation, phagocytic activity, survival, absolute weight growth and water quality measurements. The results obtained from the study, namely there is the effect of giving propolis in feed with the best dose is 800 ppm / kg of feed (addition of propolis 800 ppm / kg feed) is real P <0.05 and the best dose with a total leukocyte of 10.06 x104 cells / mm3, lymphocyte percentage 84.00%, neutrophils 6.33%, monocytes 9.67%, phagocytic activity 35.33%, survival 98% and absolute weight growth 39.18 g. Keywords: Leukocytes, Pangasius hypophthalmus, Propolis
Thophic State of Perupuk Lake based on Phytoplankton in Kampung Pinang Village Kampar District Riau Province Renny Sibuea; Asmika H Simarmata; Tengku Dahril
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
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AbstractMany activities in the Perupuk Lake contribute the input of organic and anorganic mattet that affects the nutrient concentration and increasing thr growth of phytoplankton. A research about Thophic State of Perupuk Lake by Phytoplankton in Kampung Pinang Village Kampar District Riau Province has been conducted in June-July 2019. The location of the water samples to measure water quality defined 3 stations, namely in the inlet, the curve of the lake, and in the end of the lake. In each station, there were 2 sampling points, namely in the surface (0.15 m) and 2 Secchi depth (0.90 m). Samplings were conducted 3 times at intervals of a week. Water quality parameters measured in this research were temperature, transparency, depth, pH, dissolved oxygen, CO2, nitrate and phosphate. Results shown that there were 38 species of phytoplankton that were belonged to 7 classes, namely Chlorophyceae (16 spesies), Bacillariophyceae (4 spesies), Cyanophyceae (5 spesies), Euglenophyceae (1 spesies), Trebouxiophyceae (4 spesies), Cryptophyceae (1 spesies) dan Zygnematophyceae (7 spesies). The phytoplankton abundance of the Perupuk Lake was 46.481-74.959  cells/L. The most common type of phytoplankton present was Monoraphodium griffithii. Results shown that the temperaturewas 28-30 0C, transparency was 40-54 cm, depth was 1-2 m, pH was 5, dissolved oxygen was 5.02-6.81 mg/L, CO2 was 5.99-15.98 mg/L, nitrate was 0.0125-0.9646 mg/L and phosphate was 0.0553-0.2235mg/L and. Based on the type and abundance of phytoplankton present, it can be concluded that the Perupuk Lake can be categorized as mesotrophic.Keywords : Oxbow Lake, Phytoplankton, Water Quality, Monoraphodium   griffithii, Mesotrophic
THE EFFECT OF DIFFERENT HARVEST TIMES ON POPULATION GROWTH AND BIOMASS OF WORMS(Tubifidae) Rathi Syafni; Nuraini Nuraini; Netti Aryani
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
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                                                 ABSTRACTThe Research was conducted in August - October 2018 in the Outdoor Laboratory of Fish Hatchery and Breeding at the Faculty of Fisheries and Marine, University of Riau. The purpose of this research was find out the frequency of different harvest times for increase and  biomass of silk worms (Tubifex sp.). The research method used in this study was the experimental method, the experimental design used was a one-factor Completely Randomized Design (CRD) with 4 treatments and 3 replications which were discussed descriptively. Harvesting are sampling using ½ inch pipe with 20 points in each container. The composition of P14 harvesting treatment is 4 times 56 days. P21 harvesting 3 times 63 days. P28 harvesting 2 times 56 days. P56 harvesting 1 time 56 days. The highest treatment is at the frequency of harvest time 2 times 56 days with a population increase of 27,305 ind and biomass 81.01 g. Water quality parameters during the reseach were temperature 26-28oC, pH 6-7,5, dissolved oxygen 6.0-6,5 mg / l, water discharge 0,0044-0,024 L / sec.Key words: Tubifidae, Frequency, harvest time, population increase and biomass
Trophic state of the Tanjung Putus Lake, based on Nygaard Index Eko Simatupang; Asmika H. Simarmata; Tengku Dahril
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
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ABSTRACT   Nygaard Index can be used to determine the trophic state of waters. Calculation of this index is based on the number of phytoplankton species in these following groups, namely Desmidiaceae, Myxophyceae, Chlorococcales, Centric diatom and Euglenophyceae. To understand the trophic state of the Tanjung Putus lake, a research has been conducted in February - March 2018. There were three sampling stations, namely station 1 (inlet area), station 2 (the middle of the lake) and station 3 (out let area). In each station there were two sampling points, in the surface and 2 secchi depth. Sampling were conducted 3 times, once/week. Water quality parameters measured were phytoplankton (type and abundance), transparency, temperature, pH, nitrate, phosphate, Dissolved oxygen and free carbon dioxide. Results shown that there were 6 groups of phytoplankton present, namely Desmidiaceae (6 species), Myxophyceae (3 species), Chlorococcales (9 species), Centric diatom (5 species), Cryptophyceae (2 species) and Euglenophyceae (2 species). Water quality parameters were as follows: transparency 77.5-102.5 cm, temperature 30-32 0C, pH 5, nitrate 0.04-0.07 mg/L, phosphate 0.03-0.09 mg/L, Dissolved oxygen 4.1-6.5 mg/L, free carbon dioxide 6.6-11.9 mg/L, Nygaard Index value : 2 – 2.6. Based on Nygard Index, the trophic state of the Tanjung Putus Lake can be categorized as mesotrophic to eutrophic. Keywords: Nutrient, Phytoplankton, Mesotrophic, Eutrophic
ANALYSIS OF OIL CONTENT AND DIATOMS ABUNDANCE IN SIMBUR NAIK WATERS, TANJUNG JABUNG TIMUR REGENCY JAMBI ISLAND PROVINCE Ilham Ilham; Bintal Amin; Joko Samiaji
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
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Abstract The research was conducted in August2018 with the aim to analyze the total oil content,determined type and abundance of diatoms, also determined the correlation between oil content and abundance of diatoms in the waters of Simbur Naik village, Jambi Province. The method is used in this research wasSurvey method consisted of four stations with three repetitions. The average value of oil content ranged between 0,0529 –0,7289 ppmand the abundance of diatoms were between 138,33 ind/ℓ - 417 ind/ℓ.The diatoms which consist of 15 speciesChaetocerossp, Fragilariasp,Surirellasp, Gyrosigmasp, Cymbellasp, Coscinodiscussp, Isthimiasp, Prorocentrumsp, Diploneissp, Nitzschiasp, Synedrasp, Rhizosoleniasp, Thalasssionemasp, Leptocylindrussp, andAulacoseriagranulata. The coralations between total oil content and the abudance of diatoms have a weak negatife relationship which meant the oil content does not significantly effect the abudance of diatoms. The regression equation was y = 300,1+ 60,78x and the coefficient correlation (R2 = 0,014);(r) = 0,118.Keywords:  Abundance, diatoms, oil contenc, Jambi.
Type and Density of MicroplasticAt The Coast Area Of Manggung Village, Pariaman, West Sumatera Province Sandrila Putri Elsa; M. Fauzi M. Fauzi; Adriman Adriman
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
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ABSTRACTOne of the plastic wastes that affect the coastal areas in the Manggung Village of Pariaman is microplastic. The presence of microplastics in aquatic and coastal environments can disturb the habitat of macrozoobenthos organisms. The entry of microplastics into animal bodies filter feeders can damage the functioning of organs of the digestive function, reduce growth rates and affect reproduction and is thought to have an impact on the density of macrozoobenthos. This research aims to determine the type and density of microplastics in the coastal area of Manggung Village, Pariaman. This research was conducted in May - June 2019. The sampling point was determined based on the shape of the coast by placing the kuadrat at the lowest, midpoint, and highest tide. The area of the kuadrat used is 50 x 50 cm with a depth of 10 cm of sediment. The results of the research have been found 4 types of microplastic namely fiber, fragment, film, and foam with a total density of 3640 items / m3. Keywords:plastic waste, shore area, filter feeders, fiber. 
THE EFFECTS OF GIVING Citrus hystrix SOLUTION on ERYTHROCYTES PROFILE of pangasius hypophthalmus Irawan, Chairani; Riauwaty, Morina; Lukistyowati, Iesje
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
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ABSTRACTCitrus hystrix is an essential oil producing plant. In addition to essential oils, there are several ingredients of Citrus hystrix as an antibacterial agent, namely: vitamin C, flavonoids, tannins and alkaloids. This research was conducted on June until August 2019. The aims of this research was to get obtain information about the effect of giving a solution of Citrus hystrix to the erythrocyte image of conjoined Pangasius hypophthalmus and find out the best dosage for the prevention of MAS (Motile Aeromonas Septicaemia) disease, seen from the total erythrocytes, hemoglobin, hematocrit, and morphology of erythrocyte patchouli fish (Motile Aeromonas Septicaemia). The method used is an experimental method with a completely randomized design (CRD), one factor with 5 treatment and three raplication of KN: (without immersed with Citrus hystrix solution and without infected by  Aeromonas hydrophila) KP: (without immersed with Citrus hystrix solution and infected by Aeromonas hydrophila.) P1: (1200 ppm), P2: (1500 ppm), P3: (1800 ppm). immersed of Citrus hystrix solution was carried out four times, namely on days 7,14,21 and 28, soaking was carried out for 2 minutes. Then on the 31st day a challenge test was carried out with Aeromonas hydrophila bacteria with a density of 108 CFU / ml of 0.1 ml /fish. The results showed that immersed of fish with a solution of Citrus hystrix gave effect to the erythrocyte image of conjoined Pangasius hypophthalmus. The best dosage is P2 1500 ppm treatment seen from total erythsoit 172.67 x 104 cells/mm3, hematocrit value 31.33% and hemoglobin value 6.93 g/dl. Siamese Pangasius hypophthalmus life reaches 100%. The quality of water obtained during the study were temperatures ranging from 27.3 - 28 oC, pH 6-7, DO 3.2 - 4.7 mg/L and Ammonia 0.02 mg/L.Key word :Citrus hystrix, Catfish, Aeromonas hydrophila, immertion,erythrocyte,

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