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All Journal Jurnal Ilmu dan Teknologi Kelautan Tropis Jurnal Natur Indonesia Jurnal Perikanan dan Kelautan Berkala Perikanan Terubuk Jurnal Ilmu Perairan (Aquatic Science) Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan ECSOFiM (Economic and Social of Fisheries and Marine Journal) Jurnal Ilmiah Pertanian Jurnal Perikanan Universitas Gadjah Mada Aquacultura Indonesiana Asian Journal of Aquatic Sciences Unri Conference Series: Community Engagement Jurnal Zona Journal of Coastal and Ocean Sciences Journal of Rural and Urban Community Empowerment Dinamika Lingkungan Indonesia South East Asian Marine Sciences Journal Jurnal Perikanan dan Kelautan Jurnal Natur Indonesia
Dessy Yoswaty
Universitas Riau
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Immunology & microbiology Library & Information Science Materials Science & Nanotechnology Physics Social Sciences

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Growth Of Heterotrophic Bacteria At Sea Water Polluted By ‘Surf’ Detergent Ardiah, Siti; Yoswaty, Dessy; Effendi, Irwan
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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ABSTRACT                Heterotrophic bacteria are decomposing bacteria that have an important role in maintaining the continuity of the life cycle of biota in the sea and as a standard of fertility in the waters. Heterotrophic bacteria obtain sources of food, oxygen and energy derived from the results of the decomposition process of the rest of other organisms, waste, or substances contained in the bodies of other organisms. This study aims to determine the effect of adding different concentration and duration of surf detergent to the growth of heterotrophic bacteria in sea water. This research was conducted from April to May 2018 using the experimental method. The results showed that the bacterial population in each treatment decreased with increasing concentration of detergent. The results showed that the highest number of heterotrophic bacteria was found at a concentration of 0.60% at station 1 exposure on the 10th day at 6.60 x 107 (CFU / ml) and 0.90% at the station on the 10th day of the day exposure the 10th was 6.72 x 107 (CFU / ml) and the lowest was found at a concentration of 0.90% on day 5 exposure at station 1 at 3.83 x 107 (CFU / ml). The value of the correlation coefficient (r) obtained is 0.177. Significant treatment of detergent concentration is different, which is equal to 0.00 <(0.550) and duration of exposure which is equal to 0.00 <α (0.45). Based on the results of this study, there is a negative effect of the addition of surf detergent with different concentration and duration of exposure to the growth of heterotrophic bacteria in seawater. Keywords: heterotrophic bacteria, Surf detergent. 
THE POTENTIAL OF THE ISOLATED PROBIOTICS BACTERIAL FROM GIANT PRAWNS’ DIGESTIVE TRACT (Macrobrachium Rosenbergii, De Man) WITH 16S DNA SEQUENCES TECHNIQUE Feliatra, Feliatra; Yoswaty, Dessy; Lukystyowati, Isye; Hasyimi, Wahid
Aquacultura Indonesiana Vol 15, No 2 (2014): Volume 15 Issue 2 Year 2014
Publisher : Indonesian Aquaculture Society (MAI)

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Abstract

Probiotics is a bacterial product that has beneficial for fish; both for growth and body's defenses from bacteria desease. The aim of the study is to determine the types of candidate of probiotic bacteria from the digestive tract of giant prawns that is found in Teratak Buluh Pekanbaru, Riau. This research was conducted at the Laboratory of Microbiology and Biotechnology of Fishery Faculty of Fisheries and Marine Sciences University of Riau, Pekanbaru to get a candidate of Probiotic Bacteria and do molecular examination that consists of purification of electrophoresis gel and DNA sequencing at the Institute for Biotechnology Serpong, Tangerang Banten. The method of this study is a survey method that used physical and biochemical test and molecular identification . The results showed that eleven isolates of bacterial are the species Bacillus BDU4 strain from A Bacteria isolates with 99 %  homology and 10 isolates of  bacterial are bacillus genus because the degree of homology below 97% and they are considered as the original indonesia’s new species probiotic bacteria.
ANTIBAKTERIAL ANALYSIS OF STARFISH Culcita novaeguineae EXTRACT IN THE WATER OF WEST BANYAK ISLAND ON BAKTERIA PATOGENIC Vibrio harveyiidanAeromonas hydrophila Dewi, Shinta Rafida; Yoswaty, Dessy; F. Feliatra, F. Feliatra
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        Antibacterials are needed to treat diseases caused by pathogenic bacteria. One of the waters that can be used as a natural antibacterial compound is starfish. The aim of the study was to determine the antibacterial activity produced by starfish extract C. novaeguineae whether or not the effect of different concentrations of starfish extract on the inhibitory pathogenic bacteria V. harveyii and A. hydrophila. Synthesis of starfish extract was carried out with a concentration of 12.5%, 25 %, 50% and 100% In this study four repetitions were conducted on two test bacteria, positive control (Amoxicillin) and negative control (96% ethanol). The results showed that the antimicrobial content of C. novaeguineae extract could inhibit the growth of pathogenic bacteria with strong ability, the average value of the inhibition zone between 12.1 - 18.23 mm. After the One Way ANOVA test the hypothesis (H1) from this study was received, meaning that there were significant differences or there was an effect of the treatment of starfish extract concentration. Keyword:Extract C. novaeguineae, Zone Inhibit, Pathogenic Bacteria 
ANTIBACTERIAL ACTIVITIES OF SOFT CORAL EXTRACTS Sinularia sp. ON PATHOGENIC BACTERIA (Escherichia coli, Staphylococcus aureus, AND Pseudomonas aeruginosa) Sinuraya, Tri Setia Darma; Yoswaty, Dessy; Nursyirwani, Nursyirwani
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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ABSTRACTSoft coral extract of Sinularia sp. can inhibit pathogenic bacteria Escherichia coli, Staphylococcus aureus, and Pseduomonas aeruginosa with strong inhibitory power up to very strong inhibitory power. The purpose of this study was to determine the inhibition of Sinularia sp. extract against E. coli, S. aureus, and P. aeruginosa bacteria. This research was conducted in March - April 2019. Sampling was carried out in the waters of Tamiang Island, West Pasaman Regency, West Sumatra. The method of this research is the experimental method and the method used to test antibacterial activity is the agar diffusion method.Soft coral extract of Sinularia sp. very potential to inhibit pathogenic bacteria. The highest clear zone in E. coli bacteria with a concentration of 100% is 25.67 mm, the highest yield of S. aureus bacteria at a concentration of 100% with a yield of 22,05 mm,and the highest yield of P. aeruginosa bacteria at a concentration of 25% with a result of 24.62 mm. Clear zone increases in proportion to the increase in concentration, but in P. aeruginosa bacteria is inversely proportional, because the highest yield is obtained at a concentration of 25%. Keywords:Antibacterial Activity, Pathogenic Bacteria, Sinularia sp. Extract
DENSITY OF Clostridium perfringens BACTERIA AND HETEROTROFIC BACTERIA IN RIAU DUMAI SEA WATER AND RESISTENCE TEST ON ITS ANTIBIOTICS Situmorang, Adrian; F. Feliatra, F. Feliatra; Yoswaty, Dessy
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  research was conducted in April to June 2018 in the Dumai Sea Waters of Dumai City, Riau , Privince. The purpose of this study was to determine the level density of C. perfringens and heterotrophic bacteria, analyze the level of resistance of C. perfringens and heterotrophic bacteria to antibiotics. The method used in research is an experimental method. Biochemical and resistance test analyzes were performed at the marine Microbiology Laboratory of the Faculty of study, the calculation of the number of C. perfringens and heterotrophic bacteria from the five stations obtained from the waters shows that the number C. perfringens bacteria is lower if compared with the number of heterotrophic bacteria that are in the five stations. The highest density of C. perfringens bacteria at station 3 with  a value of 1,5 x 106 and the lowest station 4 with a value 2,1 x 105. The average results of testing of te antibiotic Chloramphenicol found that all bacterial isolates were sensitive, and in isoniazid antibiotic testing it was found that all bacterial isolates were resistant. Keywords : Density, Resistance test and C. perfringens and heterotrophic bacteria
MARINE ECOTOURISM POTENTIAL OF BATUKALANG BEACH PESISIR SELATAN DISTRICT WEST SUMATERA PROVINCE Mhd. Fadhillah, Mhd. Fadhillah; Yoswaty, Dessy; Tanjung, Afrizal
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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 ABSTRACTThe aim of the study was to discover the potential level of Batukalang Beach 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 people, stakeholder and local goverment. The result showed that Batukalang Beach has a big potential in marine tourism and possess 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 WTA and WTP, scores of economic potential, and SWOT analysis.                                                                 Key Words: Batukalang, potential and marine ecotourism
ANALYSIS OF BEACH POTENTIAL FOR DEVELOPMENT ECOTOURISM OF BAHARI ISLANDS OF HEBREWS SERDANG BEDAGAI PROVINCE OF NORTH SUMATERA Siringo-ringo, Irpan suriadi; Yoswaty, Dessy; Thamrin, Thamrin
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 The study was conducted in June 2019 on Berhala Island, Serdang Bedagai Regency, North Sumatra Province. The research aims to determine the potential of ecotourism in Berhala Island and to analyze the suitability of ecology to be developed as an ecotourism location. The method used is a survey method and the determination of station points by purposive sampling. The results showed that the main marine ecotourism objects of Berhala Island are the beauty of the island, the view of the beach with clear waters, white sand and clean, underwater beauty, and protected animals such as turtles and dolphins and the phenomenon of the sun rising from above the lighthouse. The value of the Tourism Suitability Index ranges from 85.26 to 94.23%.Strategy (WO) Increasing the promotion of tourism on a national and international scale, construction of tourist support facilities, improving the quality of human resources through education and training. Strategy (SO) Development of marine tourism with the concept of ecotourism, creating jobs and preserving nature and maintaining the sovereignty of the State. Strategy (ST) Preparation of detailed zoning and regulations for the development of marine ecotourism potential, environmental utilization does not exceed the carrying capacity of the region, forming a special team for supervision of marine ecotourism potential development activities. Strategy (WT) Counseling about the importance of environmental conservation, pollution hazards, and natural disaster management, developing accessibility to the island.                                                           Keywords:Potential, Marine Ecotourism, SWOT Analysis, Berhala Island
Power Inhibition of ExtractsAzolla microphyllaagainst the Growth of Pathogenic Bacteria (Vibrio alginolyticus, Escherichia coli and Aeromonas hidrophylla Aznardi, Shodikin; Yoswaty, Dessy; Efendi, Irwan
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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ABSTRACT The research was conducted in February - April 2017 at the Laboratory of Marine Chemistry and Marine Microbiology Laboratory, Riau University and Integrated Chemical Laboratory, Muhammadiyah University of Riau. The purpose of this study was to determine the inhibitory power of Azolla microphylla extracts cultured in 5ppt saline water to the growth of pathogenic bacteria (V. alginolyticus, E. coli and A. hidrophylla). Inhibitory test using 4 concentrations used are 100%, 50%, 25% and 12.5%. The results showed that the antimicrobial content of A. microphylla extract could inhibit the growth of pathogenic bacteria (V. alginolyticus, E. coli and A. hydrophylla) with weak ability with inhibitory zone diameter between 0.15 - 2.15 mm. Keyword: ExtractA. microphylla, Power Inhibition, Pathogenic Bacteria 
POTENTIAL AND DEVELOPEMENT STRATEGY OF MANGROVE ECOTOURISM IN SUNGAI RAWA VILLAGE SIAK REGENCY RIAU PROVINCE Oktarina, Ayu; Mulyadi, Aras; Yoswaty, Dessy
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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ABSTRACT Mangrove ecotourism is an effort to maintain and utilize mangroves. This research was conducted in Sungai Rawa Village, Siak Regency, Riau Province, in September 2019. The objectives of this study were to: 1). Knowing the potential of mangrove ecosystems in Sungai Rawa Village to be developed into a mangrove ecotourism destination, 2). Develop strategies for developing mangrove ecotourism in Sungai Rawa Village. The method used in this study is a survey method. The sampling points and the respondents were determined by the purposive sampling method. The mangrove forest of Sungai Rawa Village has the potential to be developed as a mangrove ecotourism area with good ecological conditions of the mangrove forest, has a high diversity of biota, research and conservation potential as well as a high level of security and hospitality for the community. Community participation in the development of ecotourism in Sungai Rawa Village is classified as low with an IPR value of -0.03 and Mean calculated value of 1.99 while community perceptions about ecotourism development in swamp river villages are high with an IPR value of 2.77 and an average value at 26.65. Based on stakeholder perceptions of the development of Sungai Rawa Village ecotourism is appropriate or feasible to be developed as an ecotourism area. Strategy in developing mangrove ecotourism in Sungai Rawa Village is to implement an aggressive strategy (Growth Oriented Strategy) by prioritizing SO strategies, namely: 1) Establishing mangrove forest areas in Sungai Rawa Village as a conservation area, 2) Increasing access to a wider market, 3) Building collaboration with related agencies and institutions. Keyword: Siak, Ecotourism, Mangrove
PREVALENCE AND INTENSITY OF ECTOPARASITES ATTACK IN CRAB (Scylla serrata) IN SUNGAI GUNTUNG INDRAGIRI HILIR REGENCY Saharudin, Saharudin; Yoswaty, Dessy; Nursyirwani, Nursyirwani
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 Sungai Guntung has a potential for crabs because it still has fairly good mangrove forests in several areas. One of the problems found in the crab catchwas high mortality rate caused by disease and ectoparasites. This research aimed to determine the types of parasites that attack crabs and to determine the prevalence and intensity of ectoparasite attacks on crabs precisely and systematically. The field survey was conducted from April-May 2019 in Sungai Guntung waters, Kateman District, Indragiri Hilir Regency with sampling techniques from several fishermen to inventory ectoparasites on crabs.The observations found that ectoparasites include phylum protozoa namely Zoothamnium sp, and from arthropod phylum is Octolasmis sp.The prevalence value of ectoparasites infested Scylla serratawas Zoothamnium sp. 2.27%, Octolasmis sp. 80%, a mixture of Zoothamnium sp and Octolasmis sp. 6.67%. The intensity value of ectoparasites infested Scylla serrata was Zoothamnium sp. 9.5 ind/crab and Octolasmis sp. 149.23 ind/crab.Kata kunci :Ectoparasites, Crab, Protozoa, Prevalence, Intensity
Co-Authors ', Afrimansyah ', Frisilia ', Maryanto ', Mubarak ', Thamrin Abdurrahman, M. Adelina Adelina Afrimansyah &#039; Afrizal Tanjung Akbar, Aidil Rahmad Akhmad Ferdinan Hairo Alfiati Silfi Algino Panuntun Akbar Alit Hindri Yani Anak Agung Gede Sugianthara Andika Sitohang Angelia E Bernike Zebua Anggit Wondy Satrio Antonius &#039; Aras Mulyadi Arbaeyah &#039; Ardiah, Siti Arief Rachman. B Aris, Pajri Attur Mudzy Domo Azizul Fauzan Aznardi, Shodikin Batubara, Ummi Mardiah Bintal Amin Darina Darina Darma Bagus Saputra Darmawan, Ernanda P. Deni Efizon Devano, Rigo Devi Ambarwaty Oktavia Deviasari Deviasari Dewi, Shinta Rafida Dewita Dewita Domo, Attur Mudzy Efriyeldi, Efriyeldi Eka Saputra Elizal, Elizal Elkana Gabariel Eriani, Eti Eza Buana Fatwa Fahriansyah Fahriansyah Fatwa, Esa Buana Fatwa, Eza Buana Fauzan, Azizul Febby aprilliza Febri Naldi Feffiana M Amin Feliatra Feliatra, Feli Feri Handoyo Pardede Feronika Mendrofa Fitri, Sabrina Nur Gatot Yulianto Gustasya, Yosy Hade Mulyadi Hade Mulyadi Hanifa, Zurya Hapzi Ali Hari Winanda Hasyimi, Wahid Haura, Sari R. Al Hendra Kharisma Heni Pujiastuti HERI SYAHFITRI Herimufty Herimufty Hisbullah, Ali Akbar Hotdholy destrinanda Ida Rahayu Simanjuntak, Ida Rahayu Iesje Lukistyowati Ilbi Candra Yani Ilcia Teshi Diafana Ilham Ilahi Ilham Ilahi Ilman, Muhammad Khairi Indra Bayu Pratama Inka Wahyuni Irvina Nurachmi Irwan Efendi Irwan Efendi, Irwan Irwan Effendi Irwan Irwan Ismail Abdurrahman Siregar Januardi, Deki Joko Samiaji Jonny Zain Jung jung Maranata Juni Artha Hasibuan Kaprisal, Kaprisal Kelly Fuadi, Kelly Khairul Mukmin Lubis Kurnia, Fadly Agra Kurniawan, Mohd Rizky Kusdiatmoko, Aprizal Laksono Trisnantoro Livi, Aldisa Sipti Lucky Rahman Lukystyowati, Isye Mahdiyah, Evfi Mahmudah, Dewi A. Mardalisa, Mardalisa Matgus Riadi Mhd. Fadhillah, Mhd. Fadhillah Mirad, Awis Monika, Siska Mubarak Mubarak Mubarak Mubarak Muhammad Agus Muljanto Muhammad Alam Mulia Hasibuan Muhammad Hafizh Muhammad Razali MUHAMMAD RIZAL Musrifin Galib Musrifin Ghalib Naldi, Febri Niken Ayu Pamukas Nofri Andri Yulan Nursyirwani, Nursyirwani Oktarina, Ayu Oktavia, Dewi Asmiati Pajri Aris Pakpahan, Deni Panjaitan, Grace P Pardede, Feri Perie Anugraha Wiguna Prakasa Mustanto Prasetya, Dandy Purba, Paedo Yayaki Putra, Rajiv R. Ramadhan, Ragiel Ranap Junani Sari Rendy Lani Dinata Rifaldi Rifaldi, Rifaldi Rifardi Risma Tambunan Rival Junaidi Rizki, Fariza Rohadatul Aisy Romeo &#039; Romida, Zuwita Ronal Kurniawan Saharudin Saharudin Said Muhammad Qadry Saputri, Apriliana Saputri, Apriliana Eka Sari, Desy Mutia Sari, Nian Setiawan, Ilham Shodikin Aznardi Sibarani, Michael Parluhutan Jupiter Sihotang, Usia Xoros Sinuraya, Tri Setia Darma Siregar, Meiyanto Siringo-ringo, Irpan suriadi Siti Ardiah Siti Nursubadriah Situmorang, Adrian Sofyan Husein Siregar Sri Melinda Citra Syafruddin Nasution Syahada, Melania Syahril Nedi Syaifuddin Nasution T. Ersti Yulika Sari Tanjung, May Juna Tanjung, May Juna putri Thamrin &#039; Thamrin Thamrin Trisla Warningsih Ummi Mardiah Batubara Utami, Rahma I. Wahyuni, Inka Winanda, Hari Windarti Windarti Yanti, Della Hijri Yesi Yohana Esteria Yulinda, Emelda Yurestira, Ilham Yusni Ikhwan Siregar Zainuri -, Zainuri Zientika, Zientika Zulfan Saam Zulkarnaini Zulkarnaini Zulkifli &#039; Zulpikar &#039;