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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
 204   205   206   207   208 
Reproductive Biology of Puntioplites bulu Blkr from the BatangMahat River, Kampar Regency, Riau Province Salmah Lismarinda Cibro; Windarti Windarti; Muhammad Fauzi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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AbstractPuntioplites bulu is  a type of freshwater fish that commonly inhabit the Batang Mahat River, Riau. A study aims to understand the reproductive biology of P. bulu has been conducted. The fish was sampled 6 times, second/month, from January to March 2019. Parameters measured were sex ratio, gonad maturity level, gonad somatic index (GSI), fecundity and egg diameter. Results shown that there were 31 males and 34 females (sex ratio 1:1). The male has  slimmer body and brighter color than those of the female. The gonadal matury levels in females was 3 in Batang Mahat River.  The average GSI of fish ranged from 0.26-3.78%. The average fecundity  of the  female   was 179.12-202.57. Egg diameter  ranged from 0.66-1.20 mm, where  the small egg (0.66-0.92 mm) was 83-84%, the medium egg (0.93-1.19) was 14-15% and the large egg >1,20 was 1.67%. Based on the size of egg diameter can be concluded this fish is total spawner.Keywords: Sex ratio, gonad matury level, gonad somatic index, fecundity                   Total spawner
COMPOSITION CATCHES OF TAMBAN NETS IN LANJUT VILLAGE SINGKEP PESISIR DISTRICT LINGGA REGENCY RIAU ISLAND PROVINCE Febry Astuti; Bustari Bustari; Jonny Zain
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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ABSTRACTThe research aim to know composition of tamban nets based on species, weight (kg), individual, and know how the fish caught on the fishing nets . The research method used is survey method by doing direct observation of the tamban nets catch result and then the catch is identified to fish species, individual number and fish weight. The results of the descriptive analysis show that the main catches are tamban (sardinella allbella) with a weight of 151,2 kg (98,25%). By-catch consists of 5 species jarbua terapon (terapon jarbua), yellowstripe scad (selaruides leptolepis), blue mackerel (scomber australasicus), cucut fish (charcharinus sp), and fish sprawl (carangoides malabaricus) with a total weight of 2.7 kg (1.75%).Kata Kunci : Tamban nets , composition, Sardinella albella
The Effect of Honey Suplementation to Physiological NaCl Solution on Sperm Quality of Catfish (Hemibarus nemurus) Semen During Storage Indri Tri Mayang Sari; Hamdan Alawi; Sukendi Sukendi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
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ABSTRACTThe aim of this study to evaluate the effect of honey supplementation in physiological NaCl on sperm motility, viability, fertility and hatching rate of riverine bagrid catfish (Hemibagrus nemurus) during short storage. This experiment used Completely Random Design (CRD) with 5 treatments and 3 replications, namely  P0 : 0% honey in 100%  physiological NaCl, P1 : 0,2% honey in 99,8% physiological NaCl, P2 : 0,4% honey in 99,6% physiological NaCl, P3 : 0,6% honey in 99,4% physiological NaCl, P0 : 0,8% honey in 99,2%  physiological NaCl. The result showed that the addition honey in physiological NaCl on sperm storage significantly affect sperm quality of catfish during 96 hours of storage. The result showed that the best quality sperm of catfish treated by P2 was higher (P<0,05) than other treatment. In addition, the optimal storage time was 36 hours which was very good motility and highest viability (67,5%). After 12 hours storage, fertilization rate 76,5% with hatching rate 78% but after 96 hours storage, fertility decrease until 19,39% with hatching rate 58,97%. Keywords : Hemibagrus nemurus, honey, spermatozoa
Isolation and Identification of Biosurfactant Producing Bacteria from Anaerobic Pond Mud WWTP Palm Oil Industry Lovi Yona; M. Hasbi M. Hasbi; Eko Purwanto
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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 Abstract This study aims to isolate and identify the types of biosurfactant producing bacteria in anaerobic ponds WWTP palm oil industry PT. Sawit Asahan Indah. This research was conducted from April to May 2019. Bacteria were isolated and identified biochemically and 16S R DNA method. The number of bacteria obtained is 8,3 x 106 CFU / ml. The results of the study identified three types of bacteria, namely Proteus vulgaris, Proteus mirabilis and Enterobacter aerogenes. The Proteus vulgaris emulsification index is 25%, the Proteus mirabilis emulsification index is 43.3% and the emulsification index Enterobacter aerogenes is 41.6%. This shows that all three bacteria have the potential to produce biosurfactants. Keywords : Biosurfactant, Proteus vulgaris, Proteus mirabilis, Enterobacter aerogenes, Emulsification Index
Effectof Different Feedsand Typesof Feed Thatare Goodor Population Growthand The Biomassof Silk Worms (Tubifexsp.) Anggraini, Betty; Nuraini, Nuraini; Sukendi, Sukendi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
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ABSTRACTThis research was conducted on August 8th - October 3rd 2018 at the Laboratory of Fish Hatchery and Breeding, Faculty of Fisheries and Marine Sciences, Riau University. The purpose of this study is to determine the effect of different feeds and types of feed that are good for population growth and the biomass of silk worms (Tubifex sp.). The method used was a completely randomized design (CRD) with 1 factor and 4 treatment levels where each treatment used 3 replications to obtain 12 experimental units. The treatment in this study was the provision of feed with 55g oftofu dregs, 55g of sago dregs, 55gchicken manure and 55g bran against silk worms (Tubifex sp.) The results showed that different feeding significantly (P <0.05) on population growth and silk worm biomass (Tubifex sp.). Giving tofu dregs is the best feed for population growth and silk worm biomass (Tubifex sp.). which resulted in a population growth of 107098 ind, the highest biomass growth was 165.15 g and an increase in length of 1.72 cm. Key Word: Tubifex sp., Different Feed, Population Growth, Biomass Growth
THE ANALYSIS OF PURSE SEINE FISHING GEAR AT THE BELAWAN OCEAN FISHERIES PORT, MEDAN, NORTH SUMATRA PROVINCE Ahmat Hamonangan Rambe; Hendrik Hendrik; Trisla Warningsih
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 research on the Purse Seine fishing gear business was conducted on May 25 to June 8, 2018 at Belawan Ocean Fisheries Port (PPS), Medan City, North Sumatra Province. The purpose of this study is to find out how much investment, business feasibility, and sensitivity analysis of the Purse Seine fishing gear business are mini-sized 30 GT, medium 50 GT and 88  large. The number of respondents taken as many as 15 people where each size of the boat was taken by five people, one owner, one captain and three crew members               Based on the results of the study, it was found that the total investment business of the Purse Seine fishing gear was 30 GT in the amount of IDR. 1,030,276,000 and the Purse seine was 50 GT in the amount of IDR. 1,382,105,000, while the Purse Purse in large was 88 GT in the amount of IDR. 1,888. 635,000. NPV value of ship 30 GT is IDR.1,187,774,957, BCR of 1.23 and IRR of 40.95% of NPV value of medium-sized vessel is 50 GT of IDR.1,821,572,870, BCR of 1.25 and IRR of 46.39% while the NPV value of a large ship is 88 GT at IDR.2,607,345,034, BCR of 1.31 and IRR of 48.09%. Thus the business is profitable and feasible to develop. From the results of the sensitivity analysis calculations carried out for 10 years of business in scenario 3, costs are increased by 10% and production is reduced by 10% BCR = 1 means that the 30 GT ships only break even, that is not for and no loss.   Keywords:Purse Seine 30 GT Purse Seine 50 GT, Purse Seine 88 GT, BusinessFeasibility.
GROWTH OF Chlamydomonas sp. AS A PRELIMINARY STEP ON THE METAL TOXICITY TESTING Yoshua Nobel Siahaan; Budijono Budijono; Dwi Hindarti
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
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ABSTRACT             This study is aimed to learn the capabilities of Chlamydomonas sp. as biota qualifies for metal toxicity test. This research is done for 17 days by seeing an entire living phase of Chlamydomonas sp. in the growth curve. A cell density analysis from Chlamydomonas sp. calculated using a microscope.This result indicate that there are 4 living phases of Chlamydomonas sp. it’s composed of phases lag, an exponential phase, stationary phases and phases leading to death. Chlamydomonas sp. qualified as a test biota for a heavy metal toxicity test using phytoplankton according to Asean-Canada Cooperative Programme on Marine Science Phase II. This is seen from the growth of cell density that exceeds the minimum limit on the 4th day of inoculation growth curve or at the beginning of an exponential phase with density of cell 3,68 x 104 cell.mL-1.Kata Kunci : Phytoplankton, Chlamydomonas sp., Toxicity test
RED BLOOD PROFILE OFPangasius hypophthalmusTHAT WERE FED WITH TURMERIC EXTRACT (Curcuma domestica V.) Dede Kurnia Islami; Morina Riauwaty; Iesje Lukistyowati
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
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ABSTRACTThe research was conducted in September until November2017 in Parasites and Fish Disease Laboratory and an Experiment of Marine and Fisheries Faculty of Riau Universit. The aim of this research was to know the red blood profile of Pangasius hypophthalmusthat were given turmeric extract (Curcuma domestica V.) and to find out the best dosage of turmeric extract (Curcuma domestica V.) to increase the survival rate ofPangasius hypophthalmus. The method used was an experimental method with a Completely Randomized Design (CRD), with one factor and four treatments.The treatments used as control (P0) (without turmeric extract)P1 (0,5 g/kg of feed were fed with turmeric extract), P2 (0,7 g/kg of feedwere fed with turmeric extract), and P3 (0,9 g/kg of feedwere fed with turmeric extract). The results shown that feeding containing turmeric extract (Curcuma domestica V.) during 60 days of raring daysmay effect to the blood picture of Pangasius hypophtalmus. The best treatments of this research was P2 with total of erythrocyte 1,57-1,76 x106cell/mm3, haemoglobin8,6-8,7 g/dL, hematocrit 24,66% and survival rate 92%.Keywords:          Curcuma domestica V, Pangasius hypophtalmus, Erythrocyte, Haemoglobin, Hematocrit
THE EFFECT OF PAPAIN ENZYMES ADDITION IN FEED ONGROWTH AND SURVIVAL RATE OF CACHAMA(Colossoma macropomum) IN THE RECIRCULATION SYSTEM Monika Sari Br Sembiring; Mulyadi Mulyadi; Iskandar Putra
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
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ABSTRACT                              This research was conducted on May 1 - June 10, 2019, at the Laboratory of Aquaculture Technology, Faculty of Fisheries and Marine, University of Riau. This study aims to determine the best dosage of Papain enzymes mixed in commercial feed to see the growth and survival of Cachama(Colossoma macropomum). The research container used was a 60x40x40 cm3 aquarium with 12 aquariums with a stocking density of 25 fish/aquarium. This study used a Completely Randomized Design with one factor of four levels of treatment and three replications. Each treatment was given the addition of papain enzymes as much as P0 (without the papain enzyme ), P1 (1,25% / kg), P2 (2,25%/ kg) and P3 (3,25%/ kg) of feed. The results showed that the best treatment found in P2 (2,25% / kg) of feed resulted in absolute weight growth of 11,95 g, growth of the absolute length of 4,96 cm, a specific growth rate of 6,86%, food convertion ratio of 0,93 and livelihood 100 %. Keywords: Papain Enzyme, Growth, Colossoma macropomum 
Reproductive Biology of Mystus nigriceps C.V, 1840 from the Tapung Kiri River, Pantai Cermin Village, Tapung District, Kampar Regency, Riau Province Wiwit Kartika Sari; Ridwan Manda Putra; 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 Mystus nigriceps is present in the Tapung Kiri River. A study aims to understand the reproductive biologi of M. nigriceps has been conducted from April to May 2018. Fish sampling were conducted once/ week. Parameters measured were sex ratio, gonad maturnity level, gonad somatic index (GSI), fecundity and egg diameter. Results shown that there were 37 males and 63 females (sex ratio 1:2). There were 2 differences between male and female fish. There was  a white spot in the male fish tail, and the shape of the male genital papilla is pointed, while that of the female is blunt. The size of females ranged from 86-157 mm (SL) and body weight was 7.28 to 93.23 g, while that of the  males was 86-154 mm (SL) and the body weight 31.59 to 29.90 g. The GSI of females ranged from 0.12 to 17.43%, while that of males was 0.09 to 2.91%. The fecundity was 9.907 to 18.948 egg/ fish and egg diameter was 0.54 to 0.58 mm.Keyword: Sex Ratio, Gonad Maturity Level, Gonad Somatic Index, Fecundity

Page 206 of 292 | Total Record : 2919

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