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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
 56   57   58   59   60 
Types and Density of Aquatic Plant in the Watas Hutan Lake, Tanjung Balam Village, Siak Hulu Sub-regency, Kampar Regency, Riau Province Maya Lestari; Efawani '; Deni Efizon
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

Watas Hutan Lake is one of the oxbow lakes in the Kampar regency. This lake is overgrown by various types of water plants that almost cover the surface of the lake. This condition hamper the fishing activities in the lake. This research aims to discover the types and density of the aquatic plant in the lake and it was conducted from February to March 2015. Field sampling was done 2 times, a month period. The plants were then identified based on Van Steenis (1981).Result shown that there were 7 species of aquatic plants present and they are belonged to 4 classes, 7 families. They are Eichhornia crassipes, Pandanus sp., Colocasia sp., Cyperus sp., Ipomoea aquatica, Paspalum sp., and Salvinia natans. The most common plant Salvinia natans (37.6-56 organisms/m2, relative density 22.4-43.1 %), while the rarest was Ipomoea aquatica (3.3-27 organisms/m2, relative density 2.5-14.1 %). In general, the relative density of aquatic plants in the Watas Hutan Lake can be categorized as rare to medium.Keyword: Aquatic Plant, Density, Watas Hutan Lake
STUDY TECHNOLOGY IN THE VILLAGE RUGEMUK TRAWL DISTRICT PANTAI LABU SUB REGENCY DELI SERDANG NORTH SUMATRA Indra Sanjaya Purba; Arthur Brown; Pareng Rengi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

The research was conducted in April 2015 in the waters of the East Coast of Sumatra precisely in the Village District of Pantai Labu Rugemuk Deli Serdang, North Sumatra. The study aims to analyze aspects of pengeoperasian trawl and trawl fisheries business development opportunities in the village Rugemuk. The study was conducted using descriptive method of study is based on observation, interview and documentation. The study was focused on aspects Pengeoperasian and feasibility analysis. To determine management strategies based trawling in the waters of the coast of pumpkin used Feasibility analysis effort.Trawling is a fishing tool (API) which is the dominant practice in the fishing village of regemuk. APIs are also many other types of fishing practiced in the village regemuk is tuguk and Kelong. Trawl fishing gear is the type of bag-shaped nets catcher is equipped with a pair (2 pieces) board net mouth opening (otter boards).Investment of Rp. 60.2 million, the production cost of Rp. 282 924 000, gross income amounted to Rp. 336 480 000. the value of Benefit Cost Ratio of 1.10. Financial rate of retrun 55% and a payback period of capital value by 1 year 8 months.Keywords: trawling, Technology, Management, Pantai Labu.
The Effect Substitution of Soybean Meal with Fermented of Leucaena leaf (Leucaena leucocephala) Flour in the diets on Growth of Baung (Hemibragus nemurus) Andri Yosia; Adelina '; Indra Suharman
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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This research was conducted on April to May 2009, in the Laboratory of Fish Nutrition and Experimental Pond, Faculty of Fisheries and Marine Science, University of Riau. The purpose of this research are to know the amount of fermented leucaena leaf flour as the alternative feed ingredient on growth of baung (Hemibragus nemurus) with Completely Randomized Design (CRD) was used with five different treatments; P0 (0 : 100%), P1 (10 : 90%), P2 (20 : 80%), P3 (30 : 70%), P4 (40:60%), and three replications. Result indicated that the leucaena leaf flour as the feed ingredient gave significant effect (P < 0.05) on disgebility of diets, feed efficiency, protein retentions, and growth specific. The highest disgebility of diets at P3 (30:70) with 62,96%, effiency feed at P3 (30:70) with 21,12 %, retention protein at P3 (30:70) with 13,45%, growth specific at P3 (30:70) with 1,93%. The quality of the water in the container maintenance temperature of 26-31oC, Dissolved Oxygen levels of 2,8-3.4 ppm, pH of 5-7.Key word : Diet, Growth, Fermented leucaena leaf, Hemibragus nemurus
THE CONTRIBUTION OF AN EFFORT TO COLLECT OF WOOD MANGROVE ( RHIZOPHORA , SP ) AGAINST THE TOTAL INCOME HOUSEHOLDS FISHERMEN IN BANTAN TENGAH VILLAGE BANTAN SUB-DISTRICT CITY OF BENGKALIS RIAU PROVINCE Muhammad Suhardi; M. Ramli; Lamun Bathara
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

This research was conducted on january 2015. Its purpose to find out how large household income fishermen from an effort to collect mangrove wood, The total income households and large an effort to know the contribution of collecting of mangrove wood to the total household income fishermen. The methods was used by survey method with the determination of respondents with census.The results of this study that the indicate the magnitude of the average total household income of the fishermen of Rp 3.417.000, The average household income fishermen from the activities of an effort to collect of mangrove wood is Rp 1.352.750. The mangrove supported efforts to get a total income of fishing 25,2 % of households. Based on the criteria used in the analysis of data and the contribution of an effort to collect of mangrove wood against household income fishermen of 25,5 % ,that the classification is lower income.keyword: contribution, effort to collect of mangroves, wood income
MAINTENANCE SYMPHYSODONDISCUS WITH DIFFERENT FEED ON RECIRCULATION SYSTEMS Marginata, Evodias; ', Rusliadi; Putra, Iskandar
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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This research was conducted from December2014 until January 2015, for45 days in Aquaculture Technology Laboratory of Fisheries Faculty and MarineSciences, University of Riau. This study aimed to determine the effect of type offeeding is best to fish growth and survival of discus in the recirculation system.The method used in this study was a laboratoryscale experimental methods withdesign Completely Randomized Design (CRD) with three treatments were giventreatment level is P1 = Tubifex, sp, Moina, sp = P2, and P3 = Artificial Pellets.The best result was treatment P3treatment using feed artificial pellet absoluteweight of 4.3 g and absolute length of 1.3 cm. Survival and body color discus bestat using P3feed artificial pellet.Keyword : Symphysodondiscus, feed,recirculation
Study of Heavy Metals (Pb, Cu, and Zn) in Ark Cockle’s (Anadara inflata) Flesh and Shell in Selat Panjang Waters Kep. Meranti Pane, Dedi Muksin; Ikhwan, Yusni; ', Elizal
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

Ark cockle (Anadara inflata) is one of bivalve species found in Selat PanjangWaters. It is used as indicator of heavy metals pollution because of filter feedercharacteristic and of sedentary life mode. The objective of this study was to determine theconcentration of lead (Pb), Cuprum (Cu) , and Zincum (Zn) in ark cockle’s flesh and shellin Kronjo and Cituis. Heavy metals Pb, Cu, and Zn were analyzed by Atomic AbsorptionSpectrofotometer (AAS).The result showed that the consentration of Pb (3,81 μg/g) in ark cockle’s shell washigher than that of ark cockle’s flesh in contrary the consentration of Cu and Zn (6,03 μg/gand 7,54 μg/g) in ark cockle’s flesh was higher than concentration of Cu and Zn in arkcockle’s shell. Based on assisment of PWTI (Provisional Tolerable Weekly Intake) for heavymetals (Pb, Cu and Zn) in ark cockle A. inflata in Selat Panjang Waters, Meranti Island thatark cockle A. inflata safe to consumtion.Key words: Heavy Metals, Ark Cockle and Selat Panjang Waters
Analysis Mineral Content in the Shell of Freshwater Mussel (Pilsbryoconcha exilis) in Varied Sizes Rahayu, Rizki; Leksono, Tjipto; ', Desmelati
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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The purpose of this study was to determine the mineral content in freshwater mussel shell crude extractin varied shell sizes. The shell was categorized into three sizes, namely: small shell with the length of 7-8 cm (S), medium between 9-11 cm (M) and large between 13-14 cm (L). The laboratory analysis includedthe yield of shell crude extract, moisture content and the content of macro and micro minerals. The results showed that the freshwater mussel shell with the length of 7-8cm (S) had the lowest yield of shell crude extract 44,12%, but contained the highest mineral content, namely: macro minerals: calcium (Ca) 31.25%, magnesium (Mg) 0.29%, potassium (K) 3.24%, sodium (Na) 3.62%, phosphorus (P) 0.33%, and micro minerals: iron (Fe) 2.54 % and zinc (Zn) 0.91%.Keywords: Mineral, flour freshwater mussels shells, shells size
THE WIFE’S PARTICIPATION TO INCREASE OF FISHERMEN HOUSEHOLD INCOME IN BEROMBANG VILLAGE PANAI HILIR SUB DISTRICT LABUHANBATU REGENCY OF NORT SUMATERA PROVINCE Bangun, Kameliana; ', Kusai; Nugroho, Firman
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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This research was conducted in the Berombang Village Labuhanbatu North Sumatra province in April 2015. The aim of this study is Knowing wife's participation in increasing the household income of fishermen in the Berombang Village method used is survey method. Determination of the respondents random sampling (simple random sampling). The poopulation Berombang Village has a population of 32 577 respondent. Wife of a fisherman ranged between Rp. 300,000 to Rp. 2,800,000 / month. Husband earned income (fishing) ranged RP. 1,121,205 / month. Average income of household Rp. 2,778,738 / month. By comparison husband and wife income2of Rp. 411 359. T test test results showed revenue wives and husbands are not real perberbedaan, the difference is shown by 0.276> 0.005. While the proportion of the income of fishermen wife on household income is high (51-100%).Keyword: Participation Wife, Income, Household
Stomach Content Analysis of Pangasius polyuranodon Captured In The Siak River, Tualang Village, Siak Regency, Riau Province Nurlaili &#039;; Windarti &#039;; Ridwan Manda Putra
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

Pangasius polyuranodon is one of freshwater fishes that inhabit the Siak River in Riau. This fish has a high economical value and it is a main ingredient for many Riau’s traditional food. However, information on biological aspects of this fish is limited. To understand the stomach content analysis of this fish, a study has been conducted from January – March 2015. The fish was sampled in the Siak River using of the gill net. Stomach content of the fish was analyzed as a basis to calculate the Preponderance Index (PI). There were 118 fishes captured, but 33 of them had empty stomach and they cannot be used for stomach content analysis. Results shown that the main food of P. polyuranodon was a benthic animal such as gastropods (PI 43.91%), bivalve (PI 17.77%), cricket (PI 5.39%), fish (PI 1.52%), crustacean (PI 1.26%), bones (PI 0.24%) and Elais guinensis (PI 28.49%), leaves (PI 1.19%) and Archidendron (0.05%). Empty shells of gastropods and bivalve and Elaeis kernels were found in the intestine of the fish, indicates that the fish dispose these hard materials through their feces. Based on data obtained, it can be concluded that the main food of P. polyuranodon is benthic animals such as gastropod and bivalve and this fish can be categorized as omnivore leads to carnivore.Keyword: Pangasius polyuranodon, Stomach Content Analysis, Index of Preponderance
Water Quality of the Sail River, Pekanbaru Based on Type and Population of Macrozoobenthos Muharisa &#039;; Adriman &#039;; Nur El Fajri
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

Sail River is one of the most polluted river in Pekanbaru. A study aims to understand the physical, chemical and biological condition of water quality in the river was conducted from February to Mai 2015. The biological condition of the water was analyzed based on type and population of macrozoobenthos present in the river. Parameters measured were temperature, depth, transparency, turbidity, current speed, TSS, pH, DO, BOD, COD, nitrate and phosphate content. Data were analyzed using the NFS-WQI and FBI method. Results shown that the macrozoobenthos present in the Sail river were consisted of 3 phylum and 6 family, namely Annelid (Tubificidae), Arthropod (Chironomidae), and Mollusks (Ampullidae, Bithyniidae/ Bulimidae, Thiaridae). The water quality parameters in the Sail River are as follow: temperature 29-30oC, depth 0.21-0.56 m, transparency 6.45-15.27 cm, turbidity 112-593 NTU, current speed 8.08-26.58 cm/s, TSS 44.00-173.67 mg/L, pH 5-6, DO 2.80-11.51 mg/L, BOD5 4.77-29.12 mg/L, COD 10.67-44.80 mg/L, nitrate 0.18-0.81 mg/L and phosphate 1.06-1.71 mg/L. Based on NSF-WQI result, the water quality in the Sail River was categorized as poor to very poor (27.97-14.68), while the FBI value (8-8.72) indicates that the river was badly contaminated.Keyword: Sail River, water quality, NSF-WQI, Family Biotic Index, Macrozoobenthos

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