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Irwan Effendi
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INDONESIA
Jurnal Ilmu Perairan (Aquatic Science)
Published by Universitas Riau
ISSN : 16932862     EISSN : 27763080     DOI : https://doi.org/10.31258/jipas
Core Subject : Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Chemistry Environmental Science Immunology & microbiology
Jurnal Ilmu Perairan (Aquatic Science) memiliki ruang lingkup seperti bidang biologi, fisika dan kimia perairan, pemanfaatan hasil perairan, teknologi di bidang penggalian dan pemanfaatan potensi sumber daya kelautan, konservasi sumber daya kelautan, perencanaan pengembangan wilayah perairan dan pesisir, serta wilayah sosial-ekonomi dan budaya masyarakat pesisir. Jurnal ini diterbitkan sebagai sarana dan wadah para dosen, ilmuan, peneliti maupun pakar bidang perikanan mempublikasikan hasil-hasil penelitiannya untuk menunjang Tugas dan Program Tri Dharma Perguruan Tinggi secara Umum
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Perairan
Articles 10 Documents
 1 
Search results for , issue "Vol 9, No 1 (2021)" : 10 Documents clear
Isolation and Identification of Indigenous Plastic-Degrading Bacteria from Dumai’s Ocean Water of Riau Province Mardalisa Mardalisa; Eza Buana Fatwa; Dessy Yoswaty; Feliatra Feliatra; Irwan Effendi; Bintal Amin
Ilmu Perairan (Aquatic Science) Vol 9, No 1 (2021)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jipas.9.1.p.77-85

Abstract

One of the interesting and environmentally friendly microbiology strategies and approaches to control the impact of microplastics is to approach bioremediation technology by harnessing the potential of microbes or indigenous bacteria (local bacteria).  Dumai sea waters currently show a high enough of microplastic pollution which allows the potential of indigenous bacteria to adapt to a plastic environment. The purpose of this study is to isolate and identify indigenous bacteria to degrade plastics from the sea waters of Dumai and to know whether or not there is a difference in the number of bacteria found between stations in this study. This research was conducted in October-December 2020 with experimental methods at the Marine Microbiology Laboratory Faculty of Fisheries and Marine Science Universitas Riau. Based on the results of the study, 12 bacterial isolates were isolated from the research stations.  Isolates of these bacteria have diamaters ranging from 0.2-1.1 cm. Microplastic degradation test results by bacteria found that ISL 10 is an isolate that shows the highest PET degradation activity, which is 17.27% and the diameter of biofilm formation 0.8 cm. Based on biochemical and morphological tests, similar results were obtained that ISL 10 bacteria are a bacterium of the genus Bacillus. The most bacterial colonies were seen in statiun IV (TPI) with an average number of bacteria of 214.9 x 104 CFU/ml.
Mapping of Sea Surface Temperature Distribution, Sibolga City, North Sumatera Province using NOAA/AVHRR Satellite Ogesnain Sinaga; Mubarak Mubarak; Elizal Elizal
Ilmu Perairan (Aquatic Science) Vol 9, No 1 (2021)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jipas.9.1.p.1-5

Abstract

The research was aimed to map the sea surface temperature (SST) distribution in Sibolga waters that based on 20 years satellite image of NOAA/AVHRR. It used survey method for ground check in the field to collect in situ SST and other seawater parameters such as its visibillity, pH, and salinity. It found that the SST changes on each 5 year’s calculations with different pattern of distribution; the figures of SST ranged between 28.5-30  oC, 30.5-31  oC, 27-29  oC, and 27.5-28.5 oC. In addition, the pH of seawater ranged from 6-7 and 27-30 ppt in average. Different pattern of SST distribution might be related to global change on temperature and season over 20 years of study.
Estimation of Carbon Reserved in Mangrove Forest at the Estuary of the Batang Apar River, North Pariaman District, Pariaman City, West Sumatra Province Yossie Amanda; Aras Mulyadi; Yusni Ikhwan Siregar
Ilmu Perairan (Aquatic Science) Vol 9, No 1 (2021)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jipas.9.1.p.38-48

Abstract

This study was conducted in March 2020 located in Muara Sungai Batang Apar North Pariaman District Pariaman City of West Sumatra Province. The aimed of the study is to find out the amount of density, biomass, carbon stock and CO2 uptake, as well as to know the relationship of density with biomass, carbon stocks and CO2 uptake. The method used in this study is a method of surveying and analyzing samples conducted in the Marine Chemistry Laboratory of the Department of Marine Sciences Faculty of Fisheries and Marine, Riau University. The average number of mangrove upright densities in the study area at all three stations was 1.407,41 ind/ha, the average amount of mangrove biomass is 666,97 tons/ha, the average amount of mangrove carbon stock is 313,52 tons/ha, the average amount of soil carbon stock is 2.561,90 tons/ha and the average amount of CO2 uptake is 1.149,56 tons/ha.
Utilization of Azolla Flour (Azolla microphylla) Fermentation in Diet to Increase Growth of Red Tilapia (Oreochromis niloticus) Radiatul Husnaini; Indra Suharman; Adelina Adelina
Ilmu Perairan (Aquatic Science) Vol 9, No 1 (2021)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jipas.9.1.p.6-15

Abstract

This research was conducted from January - March 2020. The aimed of this research was to evaluate the effect of using fermented A. microphylla flour in the diet on feed digestibility, feed efficiency and growth of red tilapia, and the best percentage of A. microphylla flour fermentation in the diet to increase feed efficiency and growth of red tilapia. This study used a one-factor completely randomized design (CRD) with 5 treatments and 3 replications. The treatments in this study were P0 (0% FTA), P1 (25% FTA), P2 (50% FTA), P3 (75% FTA), P4 (100% FTA) in feed. Diet as much as 10% of the weight of the biomass is given three times a day, namely at 07.00, 12.00 and 17.00 WIB. The red tilapia used were 5.50 ± 0.71 cm in size with an average weight of 1.27 ± 0.08g and a stocking density of 25 fish /m3. The results showed that giving azola leaf flour fermented could increase the growth and survival of red tilapia. The use of 25% fermented A. microphylla leaf meal (P1) gave the best results for the feed digestibility value of 75.96%, 76.59% protein digestibility, 62.07% feed efficiency, 85.36% protein retention, specific growth rate 4, 31% and the cost of the test feed is Rp. 8,310.
Isolation and Identification of Biosurfactant Producing Bacteria from Slaughterhouse Wastewater Kristina Sinaga; M. Hasbi; Eko Purwanto
Ilmu Perairan (Aquatic Science) Vol 9, No 1 (2021)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jipas.9.1.p.49-55

Abstract

The slaughterhouse wastewater is rich of oil and fat and it may inhabit by biosurfactant producing bacteria. Isolation of the bacteria is needed in order to find out a biosurfactant producing bacteria that can be used to maintain the oil and fat polluted area through bioremediation process. To isolate and identify the biosurfactant-producing bacteria, a study has been conducted on July to September 2020. The samples were obtained from slaughterhouse wastewater at Cipta Karya street Pekanbaru, Riau Province and samplings were conducted three times. The isolation was conducted by TSB (Tryptic Soy Broth)  and incubated for 24 hours. Then the bacterial samples were planted by TSA (Tryptic Soy Agar)  and isolated for 24 hours. Then, it was identified using biochemical and morphological tests were carried out to find out the types of bacteria. The Emulsification Index was then calculated by using TSB (Tryptic Soy Broth) and kerosene. Results shown that the emulsification index were Flavobacterium 53%, Agrobacterium 53%, Serratia 60%, Salmonella 52. 5%, Salmonella 52.4%, Proteus 65.7%, Clostridium 62% and Aeromonas 59.5%. As Proteus is shown the highest Emulsification Index, it was check using a PCR (Polymerase Chain Reaction) and it is proved that the species is Proteus vulgaris
Isolation and Identification of Biosurfactant Producing Bacteria from Tofu Liquid Waste UD. Dika Putra, Riau Province Sonia Kamallia; M. Hasbi; Budijono Budijono
Ilmu Perairan (Aquatic Science) Vol 9, No 1 (2021)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jipas.9.1.p.16-22

Abstract

Tofu liquid waste contains high levels of organic matter, especially protein and amino acids. These organic compounds can be proteins, carbohydrates and fats. Most of the bacteria are able to use oil or fat as a source of carbon and energy, bacteria that have this ability are often known as lipolytic bacteria. This study aims to obtain biosurfactant producing bacteria from tofu wastewater. This research was conducted from July - September 2020. The method used in this research is survey method and emulsification method. The media used for bacterial isolation were Tryptic Soy Broth (TSB) and Tryptic Soy Agar (TSA). 6 of the isolates are able to produce biosurfactants. Morphological and biochemical characteristics indicate six bacterial genera, namely Genus Agrobacterium, Proteus, Proteus, Citrobacter, Enterobacter, and Serratia. The bacteria obtained are bacteria that have the potential to degrade oil in a polluted environment.
The Potential of Marine Ecotourism in Pasumpahan Island Sungai Pisang Regency West Sumatera Province Pajri Aris; Dessy Yoswaty; Mubarak Mubarak
Ilmu Perairan (Aquatic Science) Vol 9, No 1 (2021)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jipas.9.1.p.56-67

Abstract

The aim of the study was to discover the potential level of pasumpahan island as destination for marine ecotourism. The method used was survey methods, data was consisting of primary and secondary data. Interviewing sampling method was used purposively, particularly for tourist sample for local Beach has a big potential in marine tourism and prossess a big chance to develop in marine ecotourism sector. It was showed by the suitability value of marine ecotourism development. The value was resulted through tourism proponent criteria, total scores of  IKW and SWOT analysis
Utilization of Fermented Pistia stratiotes L. Flour in Diet for Growth Asian Redtail Catfish (Hemibagrus nemurus) Geri Gunawan; Adelina Adelina; Indra Suharman
Ilmu Perairan (Aquatic Science) Vol 9, No 1 (2021)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jipas.9.1.p.23-30

Abstract

Asian redtail catfish (Hemibagrus nemurus) are fish that have high economic value. The Aimed of this study was to know of the effect the use of fermented Pistia stratiotes flour and to know the percentage of best P. stratiotes flour fermentation on the growth of Asian redtail catfish fingerling. The method in this study is a completely randomized design (CRD) with five treatments and three replications, the treatments are P0 (100% soybean flour, 0% fermented P. stratiotes flour), P1 (TK 95%, TKAT 5%), P2 (P2 TK 90%, TKAT 10%), P3 (TK 85%, TKAT 15%), and P4 (TK 80%, TKAT 20%). The fish used were 5.00 ± 1.00 cm long and weighed 1.50 ± 0.50 g, with a stocking density of 20 fish/m3. Fish are kept for 56% with a frequency of feeding three times a day. The results showed that the substitution of fermented P. stratiotes flour was able to effect the growth of Asian redtail catfish. The dosage of fermented P. stratiotes flour as much as 15% gives the best results on the growth of Asian redtail catfish, namely the specific growth rate (SGR), feed efficiency, and survival rate of 3.93%, 46.47% and 96.7%.
Growth Patterns and Food Habits of Swamp Eel (Monopterus albus) from the Common Water of the Riau Main Stadium Radhiyah Radhiyah; Windarti Windarti; Ridwan Manda Putra
Ilmu Perairan (Aquatic Science) Vol 9, No 1 (2021)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jipas.9.1.p.68-76

Abstract

Swamp eel is one of the freshwater fish that live in the waters around the Riau Main Stadium. This research aims to understand the growth pattern, feeding habit and to determine the type of food present in the fish’s stomach. This research was carried out in September-October 2020. Sampling was conducted five times, once/week, using a fish rod and bamboo fish trap. There were 52 fishes captured (TL 291-613 mm and weight 30-132 gr). The stomach content was analyzed using a volumetric method and the Preponderance Index (PI) of each type of food was calculated. The length-weight relationship shown that the growth of female, intersex and male was negative allometric (b=2.40 in female, b=1,56 in intersex and b= 2,02 in male). Results showed that the food of M. albus in the waters around the Riau Main Stadium consists of insects (PI 49%), fish remains (PI 32%), mollusc (PI 9%), plants (PI 9%) and unidentified materials (1%). Based on data obtained, this fish categorized.
Isolation and Identification of Biosurfactant Producing Bacteria From Workshop Wastewater Asri Ainul; M. Hasbi; Eko Purwanto
Ilmu Perairan (Aquatic Science) Vol 9, No 1 (2021)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jipas.9.1.p.31-37

Abstract

Automotive workshop activities produce oil ills that may pollute waters around the workshop area. The oil-polluted water may inhabit biosurfactant producing bacteria that are able to degrade the oil. A study aimed to isolate and identify the bacteria has been conducted from July to September 2020. The bacteria samples were sampled from workshop wastewater at Kubang Raya street KM 2,5 Pekanbaru, Riau Province and sampling were conducted three times. The bacteria were isolated using TSB (Tryptone Soy Broth) and TSA (Tryptone Soy Agar) media and were identified by using biochemical methods. Results showed that there were seven types of bacteria, namely Providencia, Proteus, Acinetobacter, Bacillus, Aeromonas, Proteus and Serratia. The Emulsification index of  Providencia was 38.8%, Proteus 50%, Acinetobacter 48.8%, Bacillus 52,1%, Aeromonas 47,6%, Proteus 54,7% and Serratia 48,8%. Data obtained from this study showed that all of the identified bacteria are able to produce biosurfactants.

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