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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 2,919 Documents
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The effectiveness of combined lime and alum in osmofilter paper package for improving the quality of peat water Estri Sutris Neng Asih; Budijono '; M. Hasbi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

The peat water has low pH and it can be improved by adding lime and alum. The use of lime, however, produced relatively large amount of sediment. To understand the effectiveness of combined lime and alum in osmofilter paper package to increase the pH and reduce the sediment, a study has been conducted on January-April 2016.Combination of 1.7 g lime and 1.45 g alum were wrapped using osmofilter paper and were immersed in 8 L of different pH (2, 3, 4, 5, and 6) peat water. After being kept for 45 minutes, the water quality was checked. Result shown that the package of lime and alum was effective to improve the pH and reduced the sediment. In all treatments the pH increase up to 9, while the sediment decrease, from 38.34 to 34.34. The treated water was use to rear Cyprinus carpio and Oreochromis niloticus seedlings. By the 4th day the survival rate of both fish species was 90 %. Based on data obtained, it can be concluded that the use of combined lime, alum and osmofilter paper is effective to improve the quality of peat water.Keyword : Peat Water, Osmofilter paper, Alum, Lime
Identification of types and aquatic plants coverage area in the Bandar Kayangan Lembah Sari Lake, Rumbai Pesisir Sub-Regency, Pekanbaru, Riau Province. Lauura Hermala Yunita; Efawani '; Eddiwan '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

Bandar Kayangan Lembah Sari Lake is a man-made lake that is used to store water for agricultural and tourism purposes. There are many aquatic plants present in the lake and to understand the types and coverage area of the aquatic plant, a study was conducted in March-April 2016. A purposive sampling method was applied in collecting the aquatic plant. The plants were then identified based on Van Steenis (1981). The map of Bandar Kayangan Lake was downloaded using Google Earth application and the aquatic plant coverage areas in each station were then measured as a basis to predict the plant coverage area in the lake. The aquatic plants found during this study consisted of 4 families and 4 species, they were Cyperus rotundus, Paspalum commersoni, Nymphaea sp., and Pandanus sp. The aquatic plants coverage in the Bandar Kayangan Lake was around 18% and it is categorized as rare. The area that is not covered by aquatic plant was around 82% (1,054.058 m2).Keyword : Bandar Kayangan Lembah Sari Lake, aquatic plant, coverage area.
Types and abundance of zooplankton in the Tajwid Lake, Langgam Sub-District, Pelalawan District, Riau Province Aspi Mardhana; Tengku Dahril; Madju Siagian
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

Tajwid Lake is an oxbow lake that receives water from the Kampar Riverduring rainy season. To understand the types and abundance of zooplanktonpresent in that lake, a study has been conducted in February 2016. There were 3stations, Station 1 is in the inlet, Station 2 is in the middle of the lake and Station3 is in the outlet. Samplings were conducted 3 times, once/week. Results shownthat there are 20 species of zooplankton present in the lake. They were classifiedinto four classes, namely: 3 Rotifer species, 4 Crustacean species, 2 Sarcodinaspecies, 2 Cladocera species, and 2 Monogononta species, 1 Branchiopodaspecies, 1 Ciliata species, 1 Copepoda species, 1 Insecta species, 1 Phyllopodaspecies, 1 Maxillopoda species, 1 Granulureticulosa species. The average ofzooplankton abundance was around 1,582-3,990 ind/L, species diversity index(H’) was 3.95-4.10, uniformity index (E) was 1.15-1.25 and dominance index (C)was 0.08-0.07, indicated there is not a dominant species in the lake. While thewater quality parameters were as follows: temperature 290C, transparency 33-51cm, depth 600-1,200 cm, pH 5, DO 4.9-6 mg/L, and CO2 8.2-8.6 mg/L. Thevalues of water quality parameters indicate that the aquatic environment in theTajwid lake is good and is able to support the life of aquatic organisms, especiallyzooplankton.Keyword : Zooplankton, Tajwid Lake, Oxbow Lake.
Morphometric, meristic and growth patterns of (Thynnichthys thynnoides Bleeker, 1852) from the Pinang Luar Oxbow Lake, Buluhcina Village, Kampar Regency, Riau Province Nofika Srijayanti; Ridwan Manda Putra; Deni Efizon
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Thynnichthys thynnoides or motan fish is freshwater fish that inhabit the Pinang Luar Oxbow Lake. This fish has high economical value, around Rp. 25.000- 35.000 /kg. To understand the morphometrical, meristical characteristics and growth pattern of this fish, a research had been conducted from March-May 2016. There were 149 fishes (75.04-181.57 mm TL and 3,78-53,77 gr BW) were captured from the lake. There were 26 morphological characteristics measured and 9 meristical characteristics counted. General body form of the fish is not changing as the fish growing. The meristical characteristics of the fish were as follow : D.I.27-29, P.10.5, V.II.5-8, A.5-7.2, C.10-12.9, the number of scale in the pre-dorsal fin 45-50, around the body was 46-48, the caudal peduncle was 12-14 and the lateral line was 58-60. The length-weight relationship shown that the growth of male is negative allometric (b= 2.975), but that of the female was positif allometric (b= 3.092). The water quality parameters shown that temperature 26-280C, transparency 22-49 cm, pH 6, DO 4.6-6.2 mg/L, CO2 5.8-8.5 mg/L and depth 108-520 cm. Data on water quality parameters indicate that water quality in the Pinang Luar Oxbow Lake is able to support the life of the motan fish.Keywords : Thynnichthys thynnoides, Pinang Luar Oxbow Lake, morphometric, meristic, growth patterns
Water Quality Black Water River Pekanbaru in terms of Physics-Chemistry and Phytoplankton Communities Dedy Muharwin Lubis; Nur El Fajri; Eni Sumiarsih
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
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This study was conducted in April 2016 in the Black Water RiverPekanbaru in Riau. This study aims to determine the water quality of the BlackWater River Pekanbaru in terms of aspects of physics, chemistry andphytoplankton community. Samples were taken at four stations, namely upstream,middle, downstream rivers, and estuaries. Time taking water samples performedtwice at each station began at 09.00-15.00 pm with an interval of one week.Based on the results of research in the Black Water River Pekanbaru foundfour types of phytoplankton are classified in three classes of Bacillariophyceae(1jenis), Chlorophyceae (one type), and Cyanophyceae (2Jenis). Total abundanceof phytoplankton ranges from 225-1575 cells / L. The value of the diversity index(H ') ranged 0,6954- 0.8907, uniformity index (E) ranges from 0.1241 to 0.2679,and the dominance index (C) ranges from 0.6525 to 0.8205. Water qualityparameters in which the temperature can range from 27.67 - 29,330C, brightnessranges from 31.8 to 33.5 cm, pH 5, dissolved oxygen ranges from 4.96 to 6.73 mg/ L, nitrate ranged 0,1222- 0.6583 mg / L and phosphate ranging from 0.532 to0.8086 mg / L. Based on the results of this study concluded that the totalabundance of phytoplankton showed that Black Water River Pekanbaru classifiedinto waters with low fertility rate.Kata Kunci: Sungai Air Hitam, Kualitas Air, Indeks Kimia
INCREASING CALCIUM CARBONATE (CaCO3) TO GROWT AND SURVIVAL RATE VANNAMEI SHRIMP (Litopenaeus vannamei)) Unggul Fitrah Heriadi; Mulyadi '; Iskandar Putra
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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This research was conducted in March 2016 - April 2016 for 21 days at the NationalBroodstock Center For Shrimp and Mollusk Karangasem Bali. The purpose of this study todetermine the effect of calcium carbonate (CaCO3) on the growth and survival rate vanameishrimp (Litopeneaus vannamei). Vanamei shrimp size PL25 were used in the research. Thecontainer used fiber tub with capacity 250 liters and the volume of water used is 100 liters.The treatment is giving of calcium carbonate 20 mg, 35mg, 50mg, 65mg and 80mg and addedthe control treatment. This research uses a completely randomized design (CRD), level 6treatments and 3 replications. The results showed that the best treatment contained in P4 withthe addition of calcium carbonate as much the amount of shrimp molting 408 times. theabsolute length of 2.26 cm in the growth of absolute weight of 1.47 grams, daily growth rateof 2.29% and 87.7% survival rate as 65 mg/L,Keywords: Calcium Carbonate, Vannamei shrimp, moulting, survival rate
THE EFFECT OF DIFFERENT KAINDS OF BAITS TO CATCH TRAPS FISH AGREGATING DEVICE ( FADs ) IN TELUK RHU VILLAGE, IN NORTH RUPAT DISTRICT BENGKALIS REGENCY OF RIAU PROVINCES ', Rahmadi; Rengi, Pareng; ', Usman
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
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This study was conducted on January 25 until February 04 2016, the waters a rown Fish Agregating device ( FADs ) in Teluk Rhu village North Rupat Districth of Bengkalis in Riau province. In order to know effect differen lure on catches and the type of fish that is in the bottom waters . The method used is the method of experiment ,data collection was done by direct observation in the field. The research has been carried out with four kainds of bait are ( u1 ) fish (Chirocentrus dorab), ( u2 ) shrimp, ( U3 ) fish (Iiisha elogante) and ( u4 ) control . The catch of fish based on the individual and the weight of at most 113 tails / 1661 gram and at least 48 tails / 1421 grams ( u4 ). Based on the kaind of fish caught the most gulamah fish ( Pseudocienna amovensis ) as many as 125 tails weighing 1971 grams and the least is a gutter fish ( chorine mustala ) as much as 9 tails with a weight of 1209 grams .Keywords: Fish Agregating Device ( FADs ), Bait, Traps Fishing
OPERATIONAL MANAGEMENT OF FISHING PORT NATIONALSIBOLGA REGENCY OF MIDDLE TAPANULI NORTH SUMATERA PROVINCE Arifah, Nur; ', Syaifuddin; Zain, Jonny
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
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This research was conducted in 10-26 February 2016 in the ocean fishing port Sibolga. This research aims to examine operational management of Fishing Port National the most important about elements and funcitions application operational management. The study was conducted using a survey method and the analysis data that is done are and SWOT analysis .The study was conducted by taking the primary and secondary of the data for 10 days. Based on the result of research then result using SWOT analysis so the Fishing Port National Sibolga including quadrant I which is a very profitable situation and have a opportunities then take use strategist for operational management development is progressive strategist.Keyword : Operational management, SWOT analysis, Sibolga fishing port.
Behavior of Ompok hypophthalmus reared under different photoperiod Rahmat Syafri; Deni Efizon; Windarti '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
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Fish behavior is affected by environmental condition, including photoperiod. Tounderstand the effects of different photoperiod toward O. hypophthalmus behavior, astudy has been conducted in Oktober 2015. The fish was reared in fiber tanks size100cm X 50cm dan height 40cm with water circulation system. The tanks were placedunder plastic tents that were completed with light bulb and timer to adjust the time.There were 5 treatments applied, namely Control (natural photoperiod), 24 hours dark(24D), 16 dark and 8 hours light (16D8L), 8 dark and 16 hours light (8D16L) and 24hours light (24L). Fish behavior was monitored hourly for a 72 hours periodcontinuously. Swimming and schooling activities, fish position and respons to light andfood were noted. Results shown that the photoperiod clearly affects the behavior offish. During the dark, fish tend to be in the surface, swimming actively, do not form agroup, sensitive to light and very agresive to take food provided. In contrast, during thelight period, fish less active, tend to form a group in the bottom of the tank, lesssensitive to light and less aggresive in taking food. Based on data obtained, it can beconcluded that photoperiod is affect the behavior of fish in general.Keywords: photoperiod, Ompok hypophthalmus, Behavior, Dark, Light
Effect of recombinant growth hormone on growth and survival rate of river catfish (Hemibagrus nemurus) in aquaponic system Santi Ramayani; Iskandar Putra; Mulyadi '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
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The research was conducted to determine the dose of recombinant growthhormone (rGH) of Ephinepelus lanceolatus supplemented in the commercial diet thatgenerates the best performance on body weight, body length, specific growth rate,survival rate, feed efficiency, and feed convertion rate of river catfish (Hemibagrusnemurus) in aquaponic system using leafy vegetable (Ipomea reptans). The dose ofrGH administrated was 3, 6, and 9 mg/kg of commercial feed and no rGHsupplementation as control. Each treatment was design in triplicates. Catfishes ataverage 5-7 cm were reared in a fiber tank in a density 23 fish/tank for 30 days. Thefish were fed with the rGH suplplemented diet once a three days at satiation. Theresults showed that growth body weight (4,84 g) and length (3,4 cm), feed efficiency(94.76%) of fish treated by rGH with the doses of 3 mg/kg feed was higher (P<0.05)than other treatment. Specific growth rate of 3 mg/kg feed was 3,69 %, higher thanother treatment. Feed convertion rate of rGH 3mg/kg feed (1.06) was lower than othertreatment. Thus, supplementation rGH 3 mg/kg feed of catfish once in three days canbe applied in enhance the growth catfish (Hemibagrus nemurus) with a bestperformance of growth.Keyword: river catfish, recombinant growth hormone, aquaponic

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