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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
 274   275   276   277   278 
THE EFFECT OF EXTRACTION TIME ON THE YIELD OF FISH OIL KEMBUNG (Rastreligersp) EXTRACTED BYWET RENDERING METHOD Br. Sianturi1, Frisdauli junitaMargaret; Ilza, Mirna; Diharmi, Andarini
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 8, No 1 (2021): Edisi 1 Januari s/d Juni 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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ABSTRACT            Fish oil is produced by extraction. The extraction methods used to obtain fish oil consist of dry and wet rendering. The success of extraction is influenced by the extraction time which affects the yield. This study aims to determine the right time with the extraction method using wet rendering of the resulting yield. The research method is an experiment using a non-factorial completely randomized design. The treatment used was the extraction time consisting of W1 (20 minutes), W2 (30 minutes), and W3 (40 minutes) at a temperature of 70oC. The analysis parameter was yield. The results showed that the yield of mackerel oil yield at 20, 30, and 40 minutes was 0.68%, 0.75%, 0.81%. The highest yield of mackerel oil was produced at a temperature of 40 minutes at 0.81%. The treatment of the length of time for mackerel oil extraction has an effect on the yield of the oil produced. Keywords:extraction, time,wet rendering, yield
Pb and Cr content in water, sediment and blood clams (Anadara granosa) from the Panipahan Waters, Pasir Limau KapasSubdistrict, Rokan Hilir Regency, Riau Province Syahrul Anwar; Sampe Harahap; Budijono Budijono
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 2 (2020): 2 Juli - Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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ABSTRACTHeavy metals in the water might be accumulated in the sediments as well in the benthic organisms such as clam. To understand the Pb and Crcontent, a research has been conducted on May 2019.The water, sediment and clam sampleswere taken from 3 sampling sites, in the area close to mangrove (S1), around the shipyard   and settlement area (S2) and around the port and settlement area (S3). Samplings were conducted 3 times, once / 2 days.Results shown that Pb and Cr content in water  was 0.029 mg/L and 0.007 mg/L, in the sediment was 0.535 mg/kg and 0.204 mg/kg and clam was 0.114 mg/kg and 0.020 mg/kg respectively. The water in all sampling sites can be categorized as polluted, but the heavy metal concentration in the clam obtained from the sampling areas were lower than the safety standard issued by the Indonesian Government, and it might be consumed safely. Keywords:benthic organisms, sediment, bivalve, heavy metal 
COMPOSITION OF RESULTS OF HILL AND MORNING GARDEN NETWORK CAPACITY IN ALAI SUB-DISTRICT, WEST TEBING SUB-DISTRICT, REGENCY OF MERANTI RIAU PROVINCE Alhamidi Alhamidi; Arthur Brown; Isnaniah Isnaniah
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 1 (2020): Edisi 1 Januari - Juni 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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AbstractFisheries is one of the activities directly related to the management and utilization of biological resources from shipping. This research was conducted for 6 days in Alai Village, Tebing Tinggi Barat Barat District, Meranti Islands Regency, Riau Province. This study aims to determine the composition of the results of research involving morning and evening drift gills. The composition of the catch of the drift gill fishing gear operated in the Malacca Strait by the fishermen of Alai Village provided 4 types of fish taken. Among them are the Lomek fish (Horpoden neherus), the prickly fish (Ilisha elongata), the happy fish (Eleutheronema tetradactylum) and the stingray (Batoidea). Individual catches in one experiment are a maximum of 578 tails and a minimum number of catches in a selection of 5 tails. When viewed from the fish weight data, fish that have a maximum weight in one fold 0.25 kg and a minimum of 0.07 kg. The total catch during the 12 shifts was 468 kg of Lomek fish, 235 kg of prickly fish, 2.1 kg of fermented fish and 10 kg of stingrays. Keywords: Fisheries, Composition, Morning and Evening, Alai Village, and Catches
THE EFFECT OF SUBSTITUTION AND COMBINATIONOF FEED ON THE GROWTH AND SURVIVAL RATEOF SHEAT FISHLARVAE (Ompokrhadinurus Ng.) Mona Yuristi; Netti Aryani; Nuraini Nuraini
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 2 (2020): 2 Juli - Desember 2020
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ABSTRACTThe research was conducted on 24 November 2019-2 January 2020at Fish Breeding and Breeding Laboratory, Faculty of Fisheries and Marine, University of Riau. Aims to determine the effect of the best type of feed (Tubifexsp., Water Fleas or Artificial Feed) best to replace initial feed (Artemiasp.) and best combination of feed on growth and survival rate of Sheat fish larvae. The researchusingCompletely Randomized Design (CRD). The treatment used P1= Artemia sp. (age 7-17 days) + Tubifex sp. (age 17-27 days)+Artificial Feed (age 27-37 days)+Water fleas (age 37-47 days), P2= Artemia sp. (age 7-17 days)+Artificial Feed (age 17-27 days)+Water fleas (age 27-37 days)+Tubifexsp.(age 37-47 days), P3= Artemia sp. (age 7-17 days)+Artificial Feed (age 17-27 days)+Tubifex sp. (age 27-37 days)+Water fleas (age 37-47 days), P4= Artemia sp. (age 7-17 days)+Tubifex sp. (age 17-27 days)+Water fleas (age 27-37 days)+Artificial feed (age 37-47 days), P5 = Artemia sp. (age 7-17 days)+Water fleas (age 17-27 days)+Tubifex sp. (age 27-37 days)+Artificial Feed (age 37-47 days), P6= Artemiasp. (age 7-17 days)+Water fleas (age 17-27 days)+Artificial Feed (age 27-37 days)+Tubifexsp. (age 37-47 days). From the results of research the best feed to substitusionArtemia sp. is Tubifexsp. produce weight growth 0.6340 g,length growth 4.1 cm,daily weight growth39,37%/day and survival rate 96,79%. In the combination treatment of feed did not have a real effect on absolute weight growth, daily weight growth and survival rate but has a real effect onabsolute length growth of8,1 cm on treatment P4 (Artemiasp.+Tubifexsp.+Water Fleas+Artificial Feed).Water quality during the research temperatures 26-270C, pH 5,2-6,5 and DO 3,6-4,67 ppm.Keywords: Artemiasp., Tubifexsp., Ompok rhadinurus Ng.
THE CHEMICAL COMPOSITION OF FRESH GREEN SEAWEED (Caulerpa lentillifera ) Santika, Jesi; Sukmiwati, Mery; Diharmi, Andarini
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 8, No 2 (2021): Edisi 2 Juli s/d Desember 2021
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ABSTRACT             Seaweed is a food raw material for aquatic products with high nutritional content. One species of green seaweed is Caulerpa lentillifera. The advantages of the chemical composition of C. lentillifera are high carbohydrate content, but low fat content and can be developed as a functional food. This study aimed to determine the chemical composition of fresh green seaweed (C. lentillifera). The research method of seaweed preparation by cleaning from all impurities produced sea grapes that were free from all impurities. Sea grapes are reduced in size to analyze their chemical composition. The analysis parameters consisted of moisture, ash, protein, fat, and carbohydrate (by different) content. The results showed that the chemical composition of fresh green seaweed (C. lentillifera) consisted of moisture 92.02% (ww), ash 44.75% fat 7.08%, protein 13.64%, and carbohydrates 16.40% (dw). The chemical composition of sea grapes is mostly ash content (minerals) and carbohydrates.Keywords: chemical composition, ash, carbohydrate 
Carrying capacity of Pangean Reservoir, Pasar Baru Village, Pangean Subdistrict, Kuantan Singingi Regency, Riau Province based on dissolved oxygen Br Sitorus, Chrisna Heni Nozelina; Dahril, Tengku; Simarmata, Asmika Harnalin
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 2 (2020): 2 Juli - Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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AbstractCarrying capacity is an ability of the aquatic environment to support the life of cultivated organisms. This study aims to determine the carrying capacity for aquaculture based on dissolved oxygen concentration. This research was conducted in July-August 2019 at Pangean Reservoir. Water samples were taken at four stations, namely Station 1 (riverin zone), Station 2 and Station 3 (transition zone) and Station 4 (lacustrine zone). In each station has 2 sampling points, namely surface, 2 Secchi depth which is done once a week. Water quality parameters measured are dissolved oxygen, temperature, pH, brightness, depth, phosphate. The results showed that dissolved oxygen (DO) concentrations ranged from 4.2 to 6.2 mg / L on the surface, at a depth of 2 Secchi ranging from 3.07 to 5.67 mg / L. Water quality parameters support depth ranges from 248-388 cm, brightness ranges from 93-102 cm, temperatures range from 29-31oC, pH 5, Total-P 0,043-0,153 mg/L.. The carrying capacity of Pangean Reservoir based on dissolved oxygen is 3,418 kg / year and the number of floating net cages that can operate is 13 units with a size (4 x 6 x 2) m3. The number of marine cage currently available is 100 units. Based on this research, the number of KJA plot units in Pauh Pangean Reservoir has exceeded its carrying capacity.Keyword:Carrying capacity, dissolved oxygen, floating cage, Pangean Reservoir and  Water Quality
SOCIAL CAPITAL OF FRESH FISH TRADERS IN THE MARKET OF PERAWANG, TUALANG SUB- DISTRICT, SIAK REGENCY Tindaon, Rohmana Santi; Zulkarnain, Zulkarnain; Nugroho, Firman
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 2 (2020): 2 Juli - Desember 2020
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ABSTRACTThis research was conducted in February 2020 at Perawang Market, Tualang Sub-District, Siak Regency.The purpose of this study is to determine the social forms that exist between fresh fish traders, suppliers and buyers in the Perawang Market and to find out how social capital continues to occur among fresh fish traders in the Perawang Market. The method used in this study is the census method with a qualitative descriptive approach. The population in this study was 16 informants.From the results of the study, obtained a form of social networking formed between fish traders who work together and help each other by giving each other information about fish. Norms in buying and determining prices are formed personally. Trust given by traders to buyers because of the closeness, honesty and getting to know each other between traders and buyers. To maintain the social capital of fresh fish traders, fresh fish traders continue to maintain a sense of unity and kinship between fellow traders, buyers, and suppliers / agents of fish.Keywords: Social capital, Traders, Markets, Networks, Norms, Trust
Quality Characteristic of Arsik and Boiled Carp (Cyprinus carp) Tamba, Putri Geovany; Syahrul, Syahrul; Sari, N. Ira
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 8, No 2 (2021): Edisi 2 Juli s/d Desember 2021
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                                               ABSTRACKThe aims ofthis study to understand the characteristic qualityof fish wwere cooked with Arsik and boiled Cyprinus carpio. Parameter measured were organoleptic test which keeped in two days. With a good characteristics quality as good as at the first day. At the first day, the aroma good and fresh, the fish in a good condition, the color is yellow and there were not mucus at the fish body. But, the boiled carpcan only stand for one days with good charakteristic quality, aroma good and fresh, the fish in a good condition, and the color is pale yellow. Keywords : carper fish, arsik, organoleptic
THE CHEMICAL COMPOSITION OF DRIED BROWN SEAWEED (Sargassum plagyophyllum) Putri, Fatma Eka; Diharmi, Andarini; Karnila, Rahman
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 2 (2020): 2 Juli - Desember 2020
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ABSTRACT            Seaweed is a plant-like macroalgae whose habitat is attached to rocks in the coastal areas of Indonesia. Seaweed has the potential as a food ingredient that is rich in nutritional value. Seaweed consists of several classes, namely red seaweed (Rhodophyceae), green (Chlorophyceae) and brown (Phaeophyceae). S. plagiophyllum is a species of brown seaweed with high nutritional value. This study aimed to determine the chemical composition of brown seaweed S. plagyophyllum. The research method used is experimental by conducting a series of experiments. The treatment used was to make S. plagiophyllum seaweed flour before being analyzed. This study consisted of two stages, namely: 1) Sample preparation, 2) Analysis of the chemical composition of S. plagyophyllum flour consisting of moisture, ash, protein, fat and carbohydrate content (by different). The results showed that dried S. plagiophyllum showed that the moisture content, ash, protein, fat, and carbohydrates were 14.50% (ww), 14.70% (dw), protein 9.17% (dw), 2.79% fat (dw), and 58.84% carbohydrates (dw). The highest chemical composition is carbohydrates (58.84% bk) and the lowest is fat (2.79% (wk). Keywords: carbohydrate, chemical composition, seaweed
QUALITY OF SMOKE-FLAVORED CATFISH (Pangasius hypophthalmus) FILLET PREPARED FROM DIFFERENT SIZES OF FISH Malau, Chandra Yustitia; Hasan, Bustari; Leksono, Tjipto
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 8, No 2 (2021): Edisi 2 Juli s/d Desember 2021
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ABSTRACt                The aim of this study was to evaluate the effect of different whole fish sizes on quality of smoke-flavored fish.  Three groups of whole fish, 500, 750 and 1000 gram in size were flavored in 6% liquid smoke for 1 hours, and dried in oven at 60oC for 4-5 hours.  Smoke-flavored fillets were analyzed for product yield, proximate and amino acid composition, phenol, acidity and sensory quality. The results showed that the smoke-flavored fillets prepared from whole fish of 500 gram in weight were the best in quality, which characterized by product yield 33,16%, moisture 10.53%, ash 5.28%, protein 56.61%, fat 5.28%, total acidity 2.24%, phenols 64.5%, and complete amino acid profile. The smoke-flavored fillets have characteristics as very neat, less greasy, less moist, less brownish yellow in colour, suffescient smoke odor, no additional disturbing taste, solid, compact and dry. Therefore, whole fish having 500 gram in size (190 gram fresh fillet) was recommended for smoke-flavored fillet.   Keywords: smoke-flavored fillets, whole fish size, proximate,phenol, sensori quality

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