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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
 78   79   80   81   82 
Types and abundance of periphyton in the glass substrate placed in the Salo River, Salo District, Kampar Regency Santo Rio Pakpahan; Madju Siagian; Asmika Harnalin Simarmata
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

Periphyton it is aquatic microorganisms that are attached in any submerged substrate. This research aims to understand the type and periphyton abundance on glass substrates that were immersed in the Salo River. The research was conducted in August – September 2015. There were 3 stations, namely. Station 1, Station 2 and Station 3. Water quality measured were transparency, temperatur, dissolved oxygen, current velocity, carbon dioxide and pH. Periphyton were then identified. Results shown that there were 33 species and they were included in 5 classes. Bacillariophyceae (22 species), Cyanophyceae (3 species), Chlorophyceae (4 species), Dynophyceae (1 species), and Xanthophyceae (3 species). The abundance of periphyton was 5,460 cell/cm2 – 61,941 cell/cm2. The highest abundance was found in the Station 3 (61,941 cell/cm2) and the lowest was found in the Station 1 (5,460 cell/cm2). Based on data obtained, it can be concluded that the water in the Salo River is categorized as oligotrophic to mesotrophic.Keywords: Salo River, Periphyton, Glass Substrate, Type and Abundance
Vertical profiles of phosphate in the lacustrine and transition zones in the Koto Panjang Reservoir, XIII Koto Kampar Districts, Kampar Regency, Riau Province. Sistim Wehalo; Asmika H. Simarmata; 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

Phosphate is a nutrient that plays as a limiting factor for aquatic organisms and it may affect the aquatic productivity. This research aims to understand the vertical profile of phosphate in the lacustrine and transition zones of the Koto Panjang Reservoir. This research was conducted in September-October 2015. A survey method was applied in this research. Water samplings were conducted 3 times, once/2 weeks. The sampling areas were in the lacustrine and transition zones, two stations in each zone (L1; L2; T1 and T2). Phosphate concentration was analysed based on APHA (2012). Data obtained were then analyzed using a two way ANOVA. Results shown that the surface phosphate concentration in the lacustrine zone was 0.13 mg/L, while that of the transition zone was 0.15 mg/L. Phosphate concentration in the bottom area was slightly higher, it was 0.18 mg/L in the lacustrine and 0.19 mg/L in the transition zone. Result of statistical analysis indicate that there was no difference in the surface’s and bottom’s phosphate concentration in both sampling areas. Based on data obtained, it can be concluded that the Koto Panjang reservoir can be categorized as mesotrophic.Keywords: Koto Panjang reservoir, phosphate, lacustrine and transition
The Effectiveness of Liquid Waste Originated From Biogas Processing in the Palm Oil Industry PTPN V Tandun for Chlorella sp. Biomass Production Yolanda, Yuni; ', Budijono; Dahril, T.
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

A study has been conducted in December 2015. Different amount of waste was mixed with aquadest, there were P0 (0% waste), P1 (15% waste), P2 (20% waste) and P3 (25% waste) and the waste was used as nutrient source for the microalgae. Samplings were conducted once/ 5 days during a 20 days period. Parameters measured were the biomass of Chlorella sp., Nitrate (NO3), phosphate (PO4), BOD, pH, temperature, and TDS. Results shown that by the end of the experiment, the highest Chlorella sp. biomass production was 5.89 mg/L (in the P3). During the research, the nutrient available in the media decreased, from 18.4 to 4.3 mg/L (Nitrate) and from 1.37 to 0.32 mg/L (Phosphate), indicating that the nutrient have been used for growing the microalgae. Based on data obtained, it can be concluded that the biogas processing waste from the Palm Oil Industry is effective nutrient source for Chlorella sp.Keyword: Liquid waste of biogas Palm Oil Industry, Mirkoalgae, Chlorella sp.
Re-inventarisation of fish in the Sail River, Pekanbaru Regency, Riau province Adilla Yusra Lubis; Efawani '; Windarti '
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

Sail River is one of the polluted rivers in Riau. A study on fish identification in that river has been conducted in 1981 (Hamidy and Alawi, 1991) and there were 54 species present. The environmental changing during these recent years, however, may affects the fish population in that river in general. To understand the fish type present in the Sail River nowadays, a study has been conducted in December 2014 - February 2015. The fish was sampled from 5 study sites, there were in the upstream of river, under the Imam Munandar bridge, under the Sail bridge, in the Lima Puluh District and in the river mouth of the river. The fish were caught using gill net, lure, and cash net. Fish species are identified based on Saanin (1986) and Kottelat et al. (1993). Results shown that the fish caught during the study were consisted of Cypriniformes (8 species), Osteoglosiformes (1 species), Siluiformes (2 species), Beloniformes (1 species), Cyprinodontiformes (1 species), and Perciformes (10 species). The most common genus was Cypriniformes and Perciformes, and they were captured mostly under the Imam Munandar bridge. Based on data obtained, it can be concluded that the fish species living in the Sail River has been significantly decreased during the last 25 years.Key word : Sail river, Pekanbaru, cypriniformes, perciformes, fish population decrement
COMMUNITY STRUCTURE MACROZOOBENTHOS IN TANJUNG BUTON WATER’S IN SIAK DISTRICT RIAU PROVINCE Yulina Sari; Aras Mulyadi; Syahril Nedi
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

This research was conducted in March 2015 in Tanjung Buton water’s. This research aims to determine the content of organic matter in the sediment, sediment fractions, sediment grain size, the type and abundance of macrozoobenthos and relationship between the content of organic matter in sediment, macrozoobenthos abundance and sediment grain size. The method used in this research was survey method. Sample of sediment were collected from 3 stations. Sampling of macrozoobenthos was carried by using 1m x 1m plot. The analysis, identification and quantification were carried out in Marine Chemistry Laboratory and Marine Biology Laboratory, Faculty of Fisheries and Marine Science, University of Riau in Pekanbaru. The result showed that sediment organic content in Station 1 was 6,91%, Station 2 was 6,24% and Station 3 was 6,23%. The macrozoobenthos abundance varied from 11-32, ind/m2. Makrozoobenthos that were found in Tanjung Buton water’s composing of 4 classes of: gastropoda, bivalvia, polychaeta, merostomata. Diversity index (H’) was 1,74-2,34, dominance index (C) was 0,23-0,34 and uniformity index (E) was 0,36-0,37. Relationship between organic content in sediment and macrozoobenthos abundance in Tanjung Buton water’s were y = 58,61-6,060x, R2 = 0,113, r = 0,34. While relationship between sediment grain size and organic content in sediment in Tanjung Buton Waters were y = 11,20-0,823x, R2 = 0,081, r = 0,24.Key Words: Tanjung Buton, macrozoobenthos, community structure, sediment
Habitat Characteristics Nesting Environment Of Hawksbill Turtle (Eretmochelys imbricata) in the East Yu Island Of Thousand Islands National Park ', Yulmeirina; ', Thamrin; Nasution, Syafruddin
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 February until March 2016 at East YuIsland, located in the Thousand Islands National Park. The purpose of this studywas to investigate the characteristics of nesting habitat of hawksbill turtle(Eretmochelys imbricata). The method used in this research is survey method,with measuring directly on the habitat of hawksbill turtle (Eretmochelysimbricata) covering the slope of the beach, texture of sediments, within the nest oftides, temperature of the nest, humidty of the nest, the depth of the nest, fecundity,and the type of vegetation and predators in the nesting habitat. The results showedthat the nesting habitat characteristics vary between nest with each other. Nestingbeach ramps ranged 2,75-4,60º with medium sand sediment texture to coarsesand. Hawksbill turtle lay it eggs to the distance between 5-12 meters of theaverage highest tide mark. Temperatures nest ranging between 27-31ºC with ahumidity between 15-30%. The dominant vegetation in the area is a nesting plantsbutun (Barringtonia asiatica) whereas the dominant predator was biawak(Varanus salvator).Keywords: Eretmochelys imbricata, Characteristic of nesting environment, EastYu Island, Thousand Islands
The Effect Of Different Kind of Packing Materials on The Carp (Leptobarbus hoevenii) Fish Atom Crackers Stored at Room Temperature for 30 Days Akmin Sulaiman Harahap; N. Ira Sari; Sumarto '
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

This research was aimed to study the effect of different kind of packing materials on the quality of carp atom crackers stored at room temperature. The treatments in this research were different kind of packing materials which were polyprophylene, low density polyethylene and combination packing materials (HDPE and aluminium foil) and stored for H0 (0 day), H10 (10 days), H20 ( 20 days), H30( 30 days). The parameters used to analyze the quality of the fish atom crackers were organoleptic evaluation and chemis composition. The result showed that the carp fish atom cracker packed with combination packing materials (HDPE and aluminum foil) stored at room temperature for 30 days was the best treatment. It was showed by the highest organoleptic value and characterized with delicious and tasty (7,9), bright appearance (7,9), crispy and solid texture (7,6), aroma just like fish atom cracker (7,6). The carp atom crackers contained 3.14% moisture, 14.98% fat, and 5,11 mEq peroxide value.Keywords: Atom crackers, carp, packing materials, storage time
STUDY ACCEPTANCE OF CONSUMER ON ATOM FORTIFIED CRACKERS FISH BONE MEAL OF MILKFISH (Chanos chanos) Helmi Rialdi; Dewita '; Suparmi '
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

This research was aimed to determine the effect atom fortified crackers fish bone meal of Milkfish (Chanos chanos) on consumer acceptance atom crackers and to determine the best amount fish bone meal on processing atom crackers of Milkfish. The method was used experiment with a Completely Randomized Design (CRD) non factorial. The parameters were observed organoleptic test, moisture content, ash, calcium and phosphor. The results is showed that based on parameters tested, so the best treatment on crackers atom is used formulation bone meal of Milk fish 50g with the caracteristic a golden yellow; typical aromatic atom crackers; typical atom crackers tasted: the texture are dry and crispy, with the chemical composition are 5.36% moisture content, 3.69% ash, calcium and phosphor are 5257.11 mgCa/100 gr, 1164.48 mgP/100 gr respectively.Key words : Milkfish, atom crackers, fish bone meal, consumer acceptance
EFFECT OF DIFFERENT COOKING METHODS ON THE CHARACTERISTICS OF CLIMBING PERCH (Anabas testudineus)MEAL Imam Gusdika Rahman; Mery Sukmiwati; Dahlia '
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 aimed to determine the chemical characteristics of climbing perch with different cooking methods in the making fish meal. The experiment was conducted in July and August 2015. This research used the experiment method. Cooking methods used in this research T0 (control), T1 (boiling) and T2 (steaming). Proximate analysis of three samples were tested by the soxhlet method and kjeldahl method. The average value proximate fish meal and cooking methods etching with T0, T1 and T2 are respectively the water content of 8.43%, 7.24% and 6.34%, ash content of 31.11%, 23.1% and 21 , 51%, protein content of 60.42%, 56.03% and 57.64%, fat 20.56%, 10.28% and 12.43% and crude fiber 3.5%, 2.4% and 2.1%. Keywords: fish meal, climbing perch, cooking methods,
CHEMICAL CHARACTERISTICS OF PYROLYSIS LIQUID SMOKE SOME TYPES OF WOODSMOKE Juwita S; Bustari Hassan; Tjipto Leksono
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

Liquid smoke can be used to preserve and add to the taste of food. The quality of liquid smoke is determined by the type of wood smoke used. This study aimed to evaluate the yield and chemical composition of the liquid smoke made from wood kandis, wood Laban, Ubar wood and coconut shell. The fourth type of timber is made of liquid smoke with condensation method using a pyrolysis. Parameters danalisis consists of the chemical composition of wood, the yield of liquid smoke, phenols, acids, pH, carbonyl and antioxidants. The results showed that wood Laban has a higher value on the total carbonyl is 15:43% and the value of the antioxidant is 84.26%.Keywords: Liquid Smoke, preserve, wood Laban, total carbonyls, antioxidants.

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