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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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Fe and Cu concentration in gills, muscles and gonad of Notopterusnotopterus from the downstream of the Sail River, Pekanbaru Sri Nefrbina Bangun; Budijono Budijono; Eko Purwanto
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

Abstract             Sail river has been polluted by heavy metals and those affects the organs of Notopterusnotopterus. To understand the content of Fe and Cu in the gills, muscles, and gonad of the fish, a study has been conducted on December 2017 to January 2018. Samplings were conducted two times, once/month, in the downstream of the river. Heavy metals content were analysedusing AAS.Results shown that the average concentration of Fe in gills, muscles and gonads were 2.123, 1.970 dan 1.095mg/kg, while those of the Cu were1.620, 1,585 dan 0,330mg/kg respectively.Fe and Cu concentration in the fish from the downstream of the Sail River were relativy high Keywords:iron, copper, aquatic organisms, fish organ
Trophic State of The Bandar Kayangan Lembah Sari Reservoir, Rumbai Pesisir Sub-District, Pekanbaru Based on TSI (Trophic State Index) Friska Junita Sirait; Madju Siagian; Tengku Dahril Siagian
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 Trophic State Index can be used to determine the trophic state of waters. The TSI was calculated based on physical, chemical and biological parameters and it is more representative for analyzing the trophical state of waters. To understand the trophic state of the Bandar Kayangan Lembah Sari Reservoir, a research has been conducted in March - April 2018. There were four sampling stations, namely station 1 (in the inlet, from the Ambang River), station 2 (in the inlet from the Merbau River), station 3 (in the middle of the lake) and station 4 (in the dam). In each station there were three sampling points, in the surface, in the middle of water column, and in the base of the river. Sampling were conducted 3 times, once/week. Water quality parameter measured were chlorophyll-a, total phosphorus, transparency, temperature, pH, dissolved oxygen, and free carbondioxide. Trophic status was calculated based on Carlson’s Trophic State Index (TSI). The water quality parameter values were as follows: transparency 65.17-74.33 cm, total phosphorus 0.20-0.54 mg/L, chlorophyll-a 13.76-19.56 μg/L, depth 148.67-485 cm, temperature 27.33-29.33oC, pH 5, dissolved oxygen 4.10-7.69 mg/L, and free carbondioxide 3.32-7.32 mg/L. Trophic State Index value of the Bandar Kayangan Lembah Sari Reservoir was 68.17-72.25, and it indicates that the Bandar Kayangan water is inmedium to heavy eutrophic condition. Keywords:Ambang River, Merbau River, Carlson’sTrophic State Index, Water Quality
Morphometric, Meristic, and Growth Patterns of Hampala macrolepidota from the Kampar Kiri River, Mentulik Village, Kampar Regency, Riau Province Siregar, Fuja Arsita; Efizon, Deni; Efawani, Efawani
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
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 Abstract Hampala macrolepidotafishis a freshwater fish that inhabit the Kampar Kiri River.To understand themorphometrical, meristical characteristics and growth pattern of this fish, a research had been conducted from February-April 2018. There were 52 fishes (102-330 mm SL and 30.92-990 g BW) were captured from the river. There were 26 morphological characteristics measured and 11 meristical characteristics counted. Meristical characteristics of the fins were as follows: D. I, 11; P, 16; V, 9; A,7; C, 20, while the number of scale in the frontal area of the dorsal fin was 10-12, around the body was 22, around the base of the tail was 7-8 and in the lateral line was 27-28. There were 4 morphometrical characteristic differences between male and female, namely the distance between mouth and the base of pectoral fin, eye diameter, dorsal fin height and the base of caudal fin height. The length-weight relationship of the fish was allometric positive, 3.41 in female and 3.53 in male. Keywords:Freshwater fish, morphometrical characteristic, meristical characteristic, allometric positive
The Effect Of Ovaprim Injections Combination With Oxytocin On Ovulation Stimulation And The Quality Of Egg Hoven’s Carp (Leptobarbus Hoevenii Blkr) Michael Franciscus Nainggolan; Sukendi Sukendi; Netti Aryani
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
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AbstractResearch on the effect of ovaprim injections combination with oxytocin on ovulation stimulation and the quality of egg hoven’s carp(Leptobarbus Hoevenii Blkr.) was conducted on August - September 2018 at Domestic Harcery BPBAT  Gelam River Jambi, under Directorat General of Aquaculture Ministry of Marine Affairs and Fisheries. The purpose of this study was to determine the effect of combining different doses of ovaprim and oxytocin on the ovulation stimulation and the quality of egg hoven’s carp and to know the best combination of ovaprim dose and oxytocin for ovulation and quality of egg hoven’s carp. The Method used is an experimens method using a complete randomized design with four treatments and three repetitions. The treatments used was P0 (Ovaprim 7 ml/kg body weight), P1 (Ovaprim 0,525 ml/kg + Oxytocin 0,175 Iu/kg body weight), P2 (Ovaprim 0,35 ml/kg + Oxytocin 0,35 Iu/kg body weight), dan P3 (Ovaprim 0,175 ml/kg + Oxytocin 0,525 Iu/kg body weight). The results showed that giving ovaprim 0,35 ml/kg + oxytocin 0,35 Iu/kg body weight gave the best  result with the latent time obtained 12,88 hours,  number of eggs resulted stripping 35 (parent item/gram), value of ovisomaic index 8,4%, increase of egg maturity 9 %, value of fertilization 85,33%. value of hatching 74,91%, survival rate 75,55 % and injection costs of Rp. 12.105 for one spawning cycle.Keywords : Hoven’s Crap, Leptobarbus hoevenii Blkr, ovaprimdose,oxytocin dose,               ovulation and egg quality .
Gastropods Community Structure in The Mangrove Ecosystem of The Sungai Rawa Village, Sungai Apit Sub-District, Siak District, Riau Province Agustina, Endah; Adriman, Adriman; Fauzi, Muhammad
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
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ABSTRACTMangrove forests in the Sungai Rawa Village has been degraded due to anthropogenic activities. Decrement in mangrove ecosystem will negatively affects the aquatic organims in general, including the gastropods present in that area. To understand the community structure of gastropods in that mangrove ecosystem, a research was conducted on March 2018. There were 3 line transects and in each line there were 5 plots (1mx1m). The gastropods in the plots were collocted manually for 3 weeks. Result shown that there were 11 gastropods species present, they were Cassidula aurifelis, Cerithidea cingulata,      Cerithidea obtusa, Chicoreus capucinus, Ellobium aurisjudae,                        Ellobium aurismidae, Littoraria melanostoma, Littoraria scabra, Nerita balteata, Neritina carnucopia and Telescopium telescopium. The gastropods density was ranged from 9 - 15 organisms/m2. The value of species richness index (Da) was 4.16 - 4.21, the diversity index (H’) was 2.99 - 3.13, the dominance index (C) was 0.12 - 0.14 and the uniformity index (E) was 0.90 - 0.93. The water quality parameters were as follows: temperature was 27 - 29ºC; pH was 7.3 - 7.7 and salinity was 26 - 27.3º/oo. Gastropods community structure in the mangrove ecosystem of the Sungai Rawa Village was good and there was no dominant species.  Keywords: Diversity Index, Mollusca Community, Gastropods Population, Mangrove Forests
Cd and Feconcentrationin the liver, kidney and bone of Notopterusnotopterusfrom the downstream of the Sail River, Pekanbaru Annisa Rahmah; Budijono Budijono; Muhammad Hasbi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
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Abstract Sail River has been polluted by heavy metals and those may affects the organs of aquatic organisms, including Notopterus notopterus. To understand the Cd and Fe content in the livers, kidneys and bones of the fish, a study has been conducted on January to February 2018.Samplings were conducted two times, once/month, in the downstream of the river. The fish samples were obtained from fishermen. Heavy metals content were analyzed using AAS.Results shown that the concentration of Cd in liver, kidney and bone were  1.178;0,956 and0,698 mg/kg,whilethose of  the Fe were 1,131;1,177 and 0,948 mg/kg respectively. Data obtained indicate that the fish from the downstream of the Sail River were already contaminated with Cd and Fe. Keywords:cadmium, iron, aquatic organism, fish organ
Trophic State of The Pekak Lake, Buluh Nipis Village, Kampar District, Riau Province, Based on Nygaard Index. Gaol, Melinda Juliana Lumban; Siagian, Madju; Dahril, Tengku
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
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AbstractNygard Index can be used to determine the trophic state of waters. Calculation of this index is based on the number of phytoplankton species that are belonged to these following groups, namely Chlorococcales, Euglenophyceae, Centric diatom, Myxophyceae and Desmidiaceae. To understand the trophic state of the Pekak Lake, a research has been conducted in March-April 2018. There were 3 sampling stations, namely S1 (in the inlet, from the Kampar  River), S2 (in the middle of the lake) and S3 (in the end of the lake). In each station there were two sampling points, in the surface (0.2 m), and 1 Secchi depth (0.75 m). Samplings were conducted 3 times, once/week. Water quality parameters measured were phytoplankton, transparency, temperature, pH, nitrate, phosphate, dissolved oxygen and free carbon dioxide. Results shown that there are 63 species of phytoplankton present, namely Class Chlorophyceae (22 species), Class Zygnematophyceae (16 species), Bacillariophyceae (12 species), Class Euglenophyceae (4 species),  and Class Myxophyceae (3 species), and Class Cryptophyceae (1 species). The water quality parameters are as follows: transparency 68.5-76.8 cm, temperature 28-30 0C, pH 5, nitrate 0.05-0.14 mg/L, phosphate 0.06-0.11 mg/L, dissolved oxygen 5.13-6.40 mg/L, free carbon dioxide 8.23-15.48 mg/L. Nygaard Index value of the Pekak Lake was 1.8–2.37, and it can be categorized as mesotrophic to eutrophic.Keywords: Oxbow Lake, Phytoplankton, Mesotrophic, Water Quality.
Otolith Growth Ring Pattern of Hampala macrolepidota Kuhl and Van Hasselt, (1823) from the Kampar Kiri River, Mentulik Village , Kampar Kiri Hilir District, Riau Province Situmorang, Tety E; Efizon, Deni; Efawani, Efawani
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
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ABSTRAK Kampar Kiri River is one of the rivers that are polluted due to human activities along the river. Decrement of water quality may affect the growth of fish and it is reflected on the pattern of otolith growth rings. A research aims to understand the pattern of otolith growth rings in the  H. macrolepidota was conducted in January to March 2018. Sampling was done four times for two months. The fish was captured using a gill net. There were 52 fishes (10 females and 42 males) captured. The otolith (sagita) were removed and shaved. Results shown that the otolith length was 0.75 to 6 mm and their weight was 0.0008 to 0.02 g. There were dark and light rings in the otolith. Twenty six fishes had dark rings (1-3 rings/fish). Distance between the nucleus and the first dark ring was 0.02 to 0.5 mm. These data indicates that the formation of the dark ring may not be affected by periodical condition such as season or periodic physiological condition such as reproductive activities. The formation of dark ring in the otolith seem to be individual and not concurrent in fish population. Water quality in the sampling area was good (temperature 26 to 27⁰C; pH 5; DO 2.2 to 3.9 mg/L; and CO2 9.9 to 15.9 mg/L) and it may be sufficient to support the life of the fish. Keywords: Polluted water, dark ring, relative growth, sagita
THE EFFECT OF DIFFERENT SMOKING TEMPERATURE ON THE QUALITY OF SKIPJACK (Katsuwonuspelamis) KATSUOBUSHI Ramadhana, Febriano; Leksono, Tjipto; Mus, Sukirno
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 study aimed to observe the effect of different smoking temperature on the quality of skipjack (Katsuwonuspelamis) katsuobushi and to determine the best smoking temperature. The method used was an experimental and composed as non-factorial randomized complete design (RCD). The smoking temperature was differentiated into 3 levels of treatment, namely: of 40-50o C, 65-75o C and 90-100o C. The parameters used to assess the quality of katsuobushi produced were organoleptic test, water content, ash content, pH value, total plate count of microbia and fungal identification. The results showed that the best smoking temperature to produce the highest quality of skipjack katsuobushi was 90-100o C. It was shown by the highest value of appearance at 7.7 characterized by quite clean, slightly shiny without cracks, odor value at 7.8 characterized by specific wood fish odor reduced without additional odor, texture value at 7.4 characterized by hard and not easily broken, and taste value at 7.9 characterized by tasty and less tasty. The best katsuobushi contained of water 14.9%, ash 7.8%, pH value 5.4, phenol content 0.02 ppm, and TPC of bacteria 2.5 x 103 Cfu/g sample. The type of fungus grown on the skipjack tuna katsuobushi was Aspergillus sp.Keywords : katsuobushi, skipjack, smoking, temperature
Isolation And Identification Of Biosurfactant Producing Bacteria In Sediments From The Coastal Area Of Mengkapan Village, Sungai Apit Distict, Siak Regency, Province Of Riau Kristina M, Martha Novia; M. Hasbi, M. Hasbi; Purwanto, Eko
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
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ABSTRACTThe activities of petroleum drilling, ferry ports and leakages of underwater pipeline caused oil pollution in the coastal area of the Mengkapan Village.The oil pollutant will be carried by the waves  and settles to the sediment and it may causing  genetic changing in the microorganisms present in the sediment. The presence of oil pollution may trigger gene mutation in specific bacteria and it may be able to produce biosurfactants for degrading the oil. A study aims to investigate of biosurfactant producing bacteria in the sediment of the  coastal area of Mengkapan Village was conducted from March to May 2018. There were 2 stations, in the petroleum drilling area (St1) and in the Tanjung Buton port (St2). Morphological and biochemical characeristics shown that there were 3 bacteria species, namely Bacillus sp, Proteus sp and Pseudomonas sp present. Emulsification Index of the Bacillus sp was 42,85%, the Pseudomonas sp was  53%,and  Proteus sp was 25%, indicating that all bacteria obtained were potencial for producing biosurfactant. Keyword : Oil pollutant ,Pseudomonas sp , Emulsification Index, Biodegradation

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