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INDONESIA
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan
Published by Universitas Riau
ISSN : -     EISSN : -     DOI : -
Core Subject : Science,
Earth & Planetary Sciences
Arjuna Subject : -
Articles 2,919 Documents
 109   110   111   112   113 
RELATIONS OF pH AND SEDIMENT ORGANIC MATTER CONTAINS TO MANGROVE VEGETATION REVENUE IN REGENCY OF NORTH RUPAT REGENCY OF BENGKALIS DISTRICT RIAU PROVINCE Putra '; Irvina Nurrachmi; Joko Samiaji
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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The research was conducted in January 2017 in the mangrove ecosystem of North Rupat Subdistrict, Bengkalis Regency, Riau Province. The purpose of this research was to observe the relationship between sediment pH and organic sediment content with the density of mangrove vegetation. The result of ANOVA test showed pH = 0, organic matter = 1.413 and mangrove density = 2.181 with probability value of 1, 0,314 and 0,194 (> 0,05) then the three variant of population of each variable are identical. Regression test showed the value of pH relationship of sediment and organic matter of sediment to mangrove density was at 0.67%. In the correlation test showed very weak / no significant influence of both parameters on mangrove density in North Rupat Sub-district, Bengkalis Regency, Riau Province.Keyword : pH, Organic Matter, Mangrove, North Rupat, Bengkalis
ANALYSIS OF DISTRIBUTION AND VEGETATION INDEX MANGROVES IMAGE RECORDING BY USING LANDSAT 8 IN THE DISTRICT MERANTI ISLANDS RIAU PROVINCE Fauzi, Rizki
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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The research was conducted in December 2016 and was aimed to determine the distribution, vegetation index, relative density, basal area, dominance index and importance value in Meranti Archipelago Regency Riau Province. Along with development of remote sensing technology, people ecpected the result of remote sensing by landsat 8 can be used as an easy abd effective tool to provide  the information and reference on mangrove’s cultivation. The result of the research showed that vegetation index analysis was done using NDVI and composite RGB of band 456. It classified mangroves into 5 different classes the result showed the area of mangroves in Meranti archipelago regency is about 27.453 ha, species density of 462 ind/ha, highest frequence of 24,53%,  importance value of 52,28%, with accuracy level of 89,56% and the accuracy of the user 100%.Keywords: remote sensing, landsat, RGB, NDVI, density
The effects of nest cover types on incubation period and hatching rate of Olive Ridley turtle Lepidochelys olivacea in the Turtle Conservation Unit, Pariaman Dwi Pitriani; M. Fauzi; Eni Sumiarsih
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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The incubation period and hatching rate of turtle eggs are influenced by temperature and humidity of the nest, thus the type of materials used for covering the nest may affects the incubation period and hatching rate of the eggs. To understand the suitable nest cover for Lepidochelys olivacea eggs, a study has been conducted in March - May 2017. The types of cover used were plastic tarp, tin , and Terminalia catappa leaves. Results shown that the types of cover affects the incubation period and hatching rate of the turtle eggs, there were 60% and 60 days incubation (no cover), 77.7 % and 59.33 days incubation (plastic tarp), 68.8 % and 59.33 days (tin) and 84.4% with incubation period 59.33 days (T. catappa leaves).Key words : Hatcing rate,Olive Ridley Turtle, Nest cover, Turtle Conservation Unit, Pariaman
COMPARSION OF CATCHING CHARTS USING INCANDESCENT AND FLUORESCENT LAMPS IN THE LAKE AREA SINGKARAK Novi D Silaban; Bustari Bustari; Jonny Zain
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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Abstract  This research was conducted in July - August 2017 at Singkarak Lake, West Sumatera Province. This study aims to determine the ratio of the number of catches chart by using incandescent and fluorescent lamps.The survey method that used to data collection is done by direct observation in field and direct interview with fisherman. This research was conducted for 10 daysnagaritikalaksolok district.The catch during the study was 37.23 kg or 5618 individuals (tails). Based on each catches cart result using Incandescent Lamp is as much as 18.35 kg (2767 individuals (tail)) while using the Neon Lamp is 18.88 kg (2851 individuals (tail)). From the calculation of t test there is significant difference catch chart by using fluorescent lamp either from the amount of weight and the number of individuals caught.Keywords: Catches Chart, Incandescent Lamp, Neon Lamp, Nagari Tikalak.
Water Condition of Tajwid Lake in the Langgam District, Pelalawan Regency, Riau Province Prakoso, Dodo; Dahril, Tengku; Simarmata, Asmika. H.
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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Tajwid Lake is an oxbow lakes that located in the Langgam District, Pelalawan Regency,Riau Province. The potency of the Tajwid Lake is currently under reviewed by the governmentof Pelalawan as it will be developed into a tourist destination. Water quality in the lake Tajwidmight be changed as a result of human activities conducted around the lake. A study aims toprovide basic information on water quality and determine the trophic status of the lake wasconducted in February 2016. There are three stations (Station 1, Station 2 and Station 3) and thewater was sampled from three depths, surface, middle and the bottom of the lake. The samplingswere conducted 3 times, once / week. The water quality parameters measured were depth,transparency, temperature, pH, free CO2-, DO, Nitrate and Phosphate concentration. Resultsshown that the depth of the lake was ranged from 6.3 to 12.3 m, transparency 51.3- 69 cm,temperature 27.7-30.3 °C, pH 5, dissolved oxygen 2.3-8.3 mg / L. Free carbon dioxide ranged4.9-13.9 mg / L, nitrate 0.02- 0.11 mg / L, phosphate from 0.02 to 0.1 mg /L. The Nitrate andphosphate concentrations indicate that the condition of the Tajwid Lake is between oligotrophicto mesotrophic.Keywords : Tajwid Lake, Oxbow Lake, Water Quality, Trophic Status
Utilization of Fermented Water Hyacinth (Eichhornia crassipes) Meal Using Cow Rumen Liquor in Diets on Growth of Tambaqui (Colossoma macropomum) Fingerling Hana Delia Hutabarat; Indra Suharman; Adelina '
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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The research was conducted for 56 days from April to May 2017. The aim of this research was to determine the number of water hyacinth meal fermented in fish feed formulation tambaqui (Colossoma macroponum), the effect on growth, feed efficiency and protein retention. 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 3-5 cm in 0,4-0,5 g of weight. Fish were reared in 1 m3 in cages with the stocking density of 20/cage. Feeding trials were replacing with soybean meal with water hyacinth fermentation applied to P0 (0%), P1 (10%), P2 (20%), P3 (30%) and P4 (40%) for 35% of protein content. The result showed that fermentation of water hyacinth has significant effect (P<0,05) on growth, feed efficiency and protein retentions. Replacement 30% of water hyacinth fermentation is the best response, produce the highest specific growth rate 5,3%, feed efficiency 90,8%, protein retention 34,85%, digestion respectively 61,69% and survival rate 100%.Key word : Colossoma macropomum, Water hyacinth, Fermentation, Rumen Liquor
ANALYSIS OF FISHING SEASONS FOR SKIPJACK (Katsuwonus pelamis) IN THE WATERS ADJACENT TO SIBOLGA NORTH SUMATERA PROVINCE Ramafitri Uli Arta Simarmata; Alit Hindri Yani; Pareng Rengi
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 study aims to know the pattern of skipjack fishing seasons in the Sibolga waters North Sumatera. An analysis was conducted using skipjack production and purse seine fishing trip from the years at 2012-2016, collected by Sibolga Fishing Port.The method used is survey method and then analyzed by using the average percentage method. The result showed that the change of catch in a certain month because of the availability of fish and the succeed of fishing operation which resulted in the CPUE to fluctuate. The index of skipjack  fishing seasons can be calculated from this CPUE data. The peak of the skipjack catching season was in the western season from December to February and the least catching season occured in the transition season I from March to May. Keywords: Fishing seasons, skipjack, the average percentage methods, and CPUE
VARIATION OF CONCENTRATION ON VIABILITY PROBIOTICS POWDER COATING EFFERVESCENT TABLETS Lora Lestari Lubis; Devi Ambarwaty Oktavia; Feliatra &#039;
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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Efforts to increase shrimp production one through the use of probiotics. To maintain the viability of probiotic bacteria it is necessary need to protect bacteria by coating maltodextrin. Next will be molded into effervescent tablets to more intensive in the protection of probiotic bacteria. This study aimed to test the viability (the number of bacteria and soluble) probiotic that has been modified into effervescent tablets with variation in the concentrations of the coating. The method used is an experimental method in which samples of shrimp pond water will be increased 4 effervescent tablets (Formula I, II, III, IV) with 3 coating concentrations of 20%, 30%, and 40% maltodextrin. Each treatment be repeated two times. To determine the concentration of effervescent tablet coating formula is most effective test TPC (Total Plate Count) and the test of time to dissolve. Based on the test showed that the viability (number of bacteria and soluble time) probiotics in effervescent tablets with a coating of maltodextrin the best and the most effective in maintaining the stability of bacteria is of formula IV with a concentration of 30% by number of bacteria of 6.46 log CFU / mL and soluble within 20 menit. tatistical tests, the coating concentration factor (P) and the effervescent tablet formula (Q) has significant effect (p <0.05).Keywords: probiotics, effervescent tablets, Total Plate Count, viability
STUDY BETWEEN OIL CONTENT SEAWATER AND DIATOMS ABUNDANCE IN AIR HITAM STRAIT MERANTI ISLANDS REGENCY RIAU PROVINCE Syukri Fajar; Irvina Nurrachmi; Syahril Nedi
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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The research was conducted on February until March 2017 with a goal todetermine the relationship between the oil content and the abundance of diatoms,in Air Hitam Strait Meranti Islands Regency Riau Province. The survey methodwere conducted in four stations, in which three sampling. It revealed t hat the oilcontent of water ranged (0.2687 to 0.7889 ppm) and diatom abundance between(116 to 287 cells/l) which contain of 7 species. Of research results, the oilcontent in the sea water with an abundance of diatoms have a strong relation withthe value of the correlation coefficient r = 0.727, regression equation appeared y= 337.04 – 233.71 x with a coefficient of determination (R2) = 0, 5291 and thevalue of the Sig < 0.05. It was suggested that increasing oil content will decreasethe abundance of diatoms in the Air Hitam Strait.Key Words: abundance, diatoms, oil content
KOMPOSISI HASIL TANGKAPAN GOMBANG DI DESA MESKOM KECAMATAN BENGKALIS KABUPATEN BENGKALIS PROVINSI RIAU Rani Khairunnisa; Irwandy Syofyan Syofyan; Alit Hindri Yani
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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ABSTRACT             One of the fishing gear used by fisherman in Meskom Village is the gombang fishing gear. The purpose of this study is to know the composition of the catch gombang in Meskom Village. The research was conducted in March 2017. Using survey method and descriptive analysis. During the study obtained the total catches of 39,355.4 gr and 508,157 individu with an average 1,405.5 gr and 18,148.5 individu. The dominan catch during the study was the pepai shrimp (Mysis sp) individu about 9,530 gr and 134,760 individu which happened on the third day.  Keywords: Meskom Village, Gombang, Composition and Catch Result

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