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All Journal Maspari Journal Jurnal Perikanan dan Kelautan Berkala Perikanan Terubuk Maspari Journal Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Indonesian Journal Of Environmental Science and Technology Squalen Bulletin of Marine and Fisheries Postharvest and Biotechnology 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 (JRUCE)
Irvina Nurrachmi
Universitas Riau
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Earth & Planetary Sciences Education Energy Environmental Science Immunology & microbiology Physics Social Sciences

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RELATIONS OF pH AND SEDIMENT ORGANIC MATTER CONTAINS TO MANGROVE VEGETATION REVENUE IN REGENCY OF NORTH RUPAT REGENCY OF BENGKALIS DISTRICT RIAU PROVINCE Putra '; Irvina Nurrachmi; Joko Samiaji
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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The research was conducted in January 2017 in the mangrove ecosystem of North Rupat Subdistrict, Bengkalis Regency, Riau Province. The purpose of this research was to observe the relationship between sediment pH and organic sediment content with the density of mangrove vegetation. The result of ANOVA test showed pH = 0, organic matter = 1.413 and mangrove density = 2.181 with probability value of 1, 0,314 and 0,194 (> 0,05) then the three variant of population of each variable are identical. Regression test showed the value of pH relationship of sediment and organic matter of sediment to mangrove density was at 0.67%. In the correlation test showed very weak / no significant influence of both parameters on mangrove density in North Rupat Sub-district, Bengkalis Regency, Riau Province.Keyword : pH, Organic Matter, Mangrove, North Rupat, Bengkalis
ANALYSIS OF METAL CONTENT OF Zn, Cr and Cu IN BROWN ALGAE (Sargassum sp.) IN THE WATERS OF BUNGUS, PADANG PROVINCE OF WEST SUMATERA Febeyessy Aritonang; Irvina Nurrachmi; Thamrin Thamrin
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
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ABSTRACT This research was conducted in July 2018 with the aim to determine the metal content of Zn, Cr and Cu in brown Algae (Sargassum sp.) From Bungus Waters of West Sumatra Province and to determine the value of Metal pollution index (MPI) in Bungus Waters of West Sumatra Province.Determination of sampling location using purposive sampling, namely by considering the state of the research area. Sampling was carried out in areas with relatively different anthropogenic activities and analysis of heavy metal content was carried out at the Marine Chemistry Laboratory, Faculty of Fisheries and Marine, University of Riau. The results showed that the Zn metal content in brown algae ranged from 55,033 - 70,250 µg / g, where the highest concentrations were at Station 3 and the lowest at Station 1. The concentration of Cr metal in brown algae ranged from 18,500 - 32,833 µg / g, where the highest concentration was found in Station 3 and the lowest at Station 1. The concentration of Cu in brown algae ranges from 2,833 - 7,500 µg / g, where the highest concentration is at Station 3 and the lowest at Station 1. The MPI value of Bungus Waters of West Sumatra Province is 19.44, the value is still normal when compared with research conducted in other regions using Algae samples.Keywords: Zn, Cr and Cu metals, Brown Algae (Sargassum sp.), Bungus waters
The Relationship Between the Oil Content with the Abundance of Diatoms in the Waters of Kuala Tanjung Batubara Districs North Sumatera. Jonter Sitepu; Yusni Ikhwan; Irvina Nurrachmi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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A study of the relationship between oil content and the abundance of diatoms was conducted in September 2016 in the waters of Kuala Tanjung Batubara District of North Sumatra Province. Seawater samples (for oil analysis and diatoms) were collected from 4 stations. Analysis of oil content and identification of diatom was done conducted in laboratory of Chemistry and Laboratory of Marine Biology, Faculty of Fisheries and Marine Science, University of Riau. The results show that all water quality parameters measured in this study are within the tolerance range for survival of marine organisms. The oil content ranges from 0.1560 to 0.2871 ppm and diatom abundance ranges from 55 to 134 ind / l with 10 species. Based on the results of simple linear regression test, the relationship between oil content with diatomic abundance has a very strong relationship with mathematical equations y = 236,3 - 647,8x with coefficient of determination (R2) = 0,762 and correlation coefficient r = 0,873. The value of r represents a strong relationship with a negative value meaning that with increasing oil content in the waters, the abundance of diatoms in the waters will decrease.Keywords: relationship, oil content, abundance, diatoms, Kuala Tanjung.
EFFECT OF SALINITY AND SIZE ON THE ABSORPTION (Uptake)CONTAMINANTS OF METAL Zn IN BLOOD COCKLE Fadel Fadel; Yusni Ikhwan Siregar; Irvina Nurrachmi
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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ABSTRACTBlood cockle interact with physical and chemical oceanography factors caused by the tide intensely, so it’s not posible to blood coockle to free from heavy metal pollution. As a organisms, blood cockle are relatively sedentary and filter feeder, so that the presence of pollutants in the marine waters will be absorbed by the biota. Research on the absorption of zinc (Zn) with different salinity level and shell size was conducted in December 2017, it aims to determine the ability of zinc (Zn) absorption in blood cockle based on salinity level and shell size differences. The method used is experimental method using Factorial Randomized Block Design which is designed from 2 factors namely salinity and shell size. The absorption of Zn by blood cockles were higher at 20‰ compared to 25‰ as well as the uptake by 3 cm shells length of the cockles were higher than that by the cockles with 4,5 cm length. Based on the results of this study it can be concluded that the absorption of Zn in blood cockles in influenced by the difference of salinity and shell sizes.Key Words: Blood cockles, Salinity, Size.
Hubungan Kandungan Minyak Dengan Kelimpahan Diatom Pada Strata Kedalaman Di Perairan Tanjung Buton Kabupaten Siak Nurul Abdiah Nasution; Yusni Ikhwan Siregar; Irvina Nurrachmi
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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A study on the oil content of sea water and diatom abundance wereconducted in March 2016 at Tanjung Buton consist of three sampling station wereestablished with three depth strate (upper, midlle and lower) on each station. Theidentification and quantification of oil content as well as diatom were carried outin Marine Chemistry Laboratory, Faculty of Fisheries and Marine Science,University of Riau in Pekanbaru. The result of the study showed that oilcontents range apparently the highest of oil content were found at station 1(0,1603 ppm) and the lowest was found at station 2 (0,0994 ppm). The highestdiatom abundance was found at stasion 3 (352 cells/L) and the lowest abundancewas found at station 1 (289 cell/l). 18 species of diatom were found in TanjungButon Water. Nitzchia sp was the species with the highest dominance. Oil contentwith diatom abundance showed a weak negative corelation Y= 266,2-3,915x; R² =0,118; r = 0,344. At the upper showed a very weak negative corelation Y = 318,7-0,070x; R² = 2 X 10-9 ; r = 0,00014, at the midlle showed a weak positivecorelation Y = 236,2+615,2x; R² = 0,141 ; r = 0,3755 while at lower showed avery weak negative corelation Y = 492-1477x ; R² = 0,149 ; r = 0,386 whichmean increasing oil content will cause a decrease the abundance of diatom inTanjung Buton water’s.Key word’s : Oil content, diatom, Tanjung Buton Water
Correlation Of Oil Content and Epiphytic Diatom Density in seagrasses Leaves Enhalus acoroides in Rupat Utara Waters Bengkalis Distric Riau Province Adi Maulana; Yusni Ikhwan; Irvina Nurrachmi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
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This study were conducted in survey method. Four stations were established with three replication of each sampling station. It revealed that oil content in water ranged from (0.4391 – 0.7973) ppm. The highest epiphytic diatom density on the seagrass leaves oppeared in station 4 which accounted 366 ind/cm2, while the lowest 132 ind/cm2 found in station 2. During the study, epiphytic diatom species most commonly found are Isthmia sp, Navicula sp, Skeletonema sp, Ulothrix sp, dan Synedra sp. Statistical analysis showed the oil content and epiphytic diatom density correlation were weak with coefficient of (0.05)Key words : Rupat Utara Water, Oil Content, Epiphytic Diatom
ANALYSIS OF ZOOXANTHELLA DENSITY ON CORAL Acropora sp IN SIRONJONG GADANG ISLAND PESISIR SELATAN DISTRICT WEST SUMATRA Jefri Affandi; Thamrin '; Irvina Nurrachmi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
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AbstractThis research was conducted in September 2014 in the island of Sironjong Gadang, Koto XI Tarusan, Pesisir Selatan Disctrict of West Sumatra Province. The purpose of this study is to know the effect of depth towards the density of zooxanthella on the type of coral Acropora sp in Seronjong Gadang Island. While the benefits of the research are expected to obtain data and information about the density of zooxanthella on Acropora sp at the different depths. The methodology used in this research was a survey method and for coral sampling used purposive sampling technique, where samples are taken around the Seronjong Gadang Island with 3 different depth according to distribution of Acropora sp Coral reef that surround these waters. Parameter measurements of waters performed at each station. Samples were taken in the field, then followed by analyzing samples in the Laboratory.Depth is one of factor that affect the amount of light intensity that enters into the waters. The light that comes into the waters was symbion zooxanthella needed to perform fotosentesis in his life as the main supplier for coral as host. The deeper the waters, the less light that come into the waters. According to the research, there is the difference between the depth of 1 m, 5 ms and 10ms. The average of Zooxanthella cell in the depth of 1 m are 5.150.125 cell/cm2, then in the depth of 5 m are 3.552.525 cell/cm2, and in the depth of 10 m the average of zooxanthella are 3.242.241 cell/cm2. It means that the amount of Zooxnthella on Acropora sp decreased over by the increase of the depth.Keywords: Coral, Acropora sp, zooxanthella, Sironjong Gadang.
CAPABILITY OF BACTERIAL METHANOL EXTRACT OF SEAWEED Eucheuma cottonii GROWN ON BACTERIA Escherichia coli FOR IN VITRO Siti Nursubadriah; Dessy Yoswaty; Irvina Nurrachmi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
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This research was held from 1 to 31 August 2015. The samples were collected from Pasir Panjang coast of Karimun Island of Riau Islans Province. The seaweed Eucheuma cottonii is one of the marine commodities that has high economic value and as a source of non-oil income. seaweed contained organic materials such as polysaccharides, hormones, vitamins, minerals and bioactive compounds. Escherichia coli can cause digestive tract disease such as cholera, typhoid, dysentery, diarrhea and worm diseases. The aim of this study was to analyze differences of antibacterial activity of E. cottonii seaweed extract on the growth of E. coli bacteria. Inhibitory ability seaweed extract that is classified by obtaining the average value in the range of 6-8 mm. Antibacterial activity of E. cottonii seaweed extract tends to be bacteriostatic with an average value of 7.08 diameter with the highest obstacle in the extract concentration of 100%. The results showed that the extract of seaweed E. cottonii has the ability to inhibit the activity of E. coli bacterial growth. Kata kunci: E. cottonii. antibacterial, E. coli, extract, Karimun Island.
RELATIONS WITH TOTAL CONTENT OF ORGANIC MATTER IN THE AREA MANGROVES ABUNDANCE OF PHYTOPLANKTON IN TANJUNG BALAI ASAHAN WATERS OF NORTH SUMATRA Joenathan Sarumpaet; Irvina Nurrachmi; Sofyan Husein Siregar
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 The purpose of this study to determine the content of organic matter, knowing the abundance of phytoplankton in the waters of Tanjung Balai Asahan, and determine the relationship between total organic matter content of the abundance of phytoplankton in the waters of Tanjung Balai Asahan. This study was conducted in July - August 2019, The method used in this study is a survey method. Observation station determined by purposive sampling. Results of water quality measurements showed that the temperature of between 29.5 to 33 ° C, pH 6-7, 23-25 ppt salinity, brightness ranged from 24.25 to 49.8 cm, the average flow velocity ranges from 0.15 to 0, 48 m / sec, and a depth ranging from 2.7 to 6 m. The survey results revealed thattotal organic matter content ranged20.44 to 27.14 mg / l, Phytoplankton are found there are 6 genus of phytoplankton that is, Isthmia sp, Navicula sp, sp Pleurosigma, Skeletonema sp, Coscinodiscus sp, sp Triceratium, Average - Average abundance of phytoplankton ranged1930.19 -3603.03 ind / l, Total organic matter content relationships with an abundance of phytoplankton have a strong relationship with the coefficient (r) = 0.80, where the increase in total organic matter content of the abundance of phytoplankton will increase. Keywords: Phytoplankton, Total Organic Ingredients, Water Tanjung Balai 
THE INFLUENCE OF THE SALINITY TOWARDS THE GROWTH OF SPIRULINA PLATENSIS CULTIVATION OF BIOMASSSA MIKROALGA ON THE SCALE SEMI OUTDOOR Merry Sintya Dewi; Joko Samiaji; Irvina Nurrachmi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
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ABSTRACT Mikroalga is a large group of aquatic organisms that is very diverse, does not have a complex cell structure, with a diameter between 1-50 µm and can be found in various environments such as freshwater, brackish and sea water or damp places other mikroalga which formed the basis of the food chain. This research was carried out from December-January 2018 in the laboratory of Marine Biotechnology and Marine Chemistry Laboratory, Faculty of Fisheries and Marine Science University of Riau. The aims is to find out the influence of biomass and growth rate differences salinity (ppt, 15 20 25 ppt, ppt and 30 ppt) against a platensis cultivation mikroalga s. on the scale of the spring pool. The method used is the method of experiment using Random Design. The results showed that the growth of biomass at all salinity treatments experienced the highest increase on day 10 observations. The number of maximum biomass growth was 0.078 g/L salinity treatment at 25 ppt, and growth the lowest biomass is 0.019 g/L on the treatment of 30 ppt. Statistical analysis (ANOVA) showed that the difference in salinity towards the growth of biomass mikroalga s. platensis gained real influence there, where values (P < 0.005). Linear regression analysis shows that the influence of salinity towards the growth of the biomass is weak, with the value of the coefficient of determination R2 = 0.012 and coefficient of correlation r = 0.109. Keywords: Mikroalga,Spirulinaplatensis, Biomassgrowth, Salinity
Co-Authors ', Intan ', Jamalus Abdullah &#039; Adam Dionfriski Ade Mulyana Adi Maulana Afrizal Tanjung Afrizal Tanjung Afrizam &#039; Agustinus Robert Uria Aisyah Khasena Alfeus Jhonson Armada H Andre Thessalonians Marpaung Ani Ani Aras Mulyadi Aras Mulyadi Arbianti, Purnama Areza Maulana Arifin, Adani Fatahilal Betari Erlinda Prayitno Bintal Amin Biotal Amin, Biotal Dessy Yoswaty Dewi A. Mahmudah Dewi Seswita Zilda Dewita Dewita Dewita Dewita Dharma Eka Putra Dilla Andini Dilla Andini Dinda Savita Dodik Febriyantoro, Dodik Dwi Hindarti, Dwi Dwi Putri Pratiwi Efriyeldi, Efriyeldi Elizal, Elizal Ernanda P. Darmawan Esra Waty F, Feliatra Fadel Fadel Febeyessy Aritonang Feffiana M Amin Fitriansah, Heru Gregorius Agung Gustini Sri Ulina Hardiko, Syefri Hazmi Arief I Ketut Sudiana Ilham Yurestira Islamiati, Bening Jefri Affandi Jewlaika, Lady Joenathan Sarumpaet Joko Samiaji Jonter Sitepu Kaharudin, Zakaria Khairunnisa Khairunnisa Kusnadi, Yudi Lita Sari M. Afriansyah Margaretha Sri Ulina Sitohang Masjudi, Heri Melania Syahada Merry Sintya Dewi Michael Prawira, Michael Mikael H Dolok Saribu Mubarak &#039; Mudinillah, Adam Muhammad Amien Muhammad Irfan Muhammad Nudi Habibi Muhammad Nudi Habibi Muhammad Roif Alghani Muhammad Syarif Musrifin Galib Musrifin Galib Musrifin Galib Musrifin Ghalib Musrifin Ghalib Nababan, Sumiati Friesledi Nickson Panjaitan Nila Sari Lubis Nisa Tria Fatma Nur Arifin, Nur Nursyirwani, Nursyirwani Nurul Abdiah Nasution Priyono, Franciscus Edi Putra &#039; Putri, Zulherija Rafiq Prima Nugraha Ragiel Ramadhan Rahma I. Utami Raihan Zaki Rajiv R. Putra Ridhawani, Fiki Ridwan Rafsyanjani Rifardi &#039; Rifqi Rafif Anadri Riska Khaironisa Riska Khaironisa Rizki Hamdani Rosa, Mila Rozali &#039; Sari R. Al Haura Seli Selvia Sembiring, Herbin Sihaloho, Elpon Simon Hasintongan Aritonang Siregar, Meiyanto Siti Nur Sufaidah Siti Nursubadriah Sofia Wanda Rizki Sofyan H. Siregar Sofyan Husein Siregar Sumiati Friesledi Nababan Susiyanti. N Suzila &#039; Syafrizal Syafruddin Nasution Syahril Nedi Syahrul Syahrul Syawfy Luthfiandra Syukri Fajar Taufik Adrizal Tengku Rahma Lopi Thamrin &#039; Thamrin Thamrin Thamrin Thamrin Theresia Tampubolon Tri A Hadi Verid Aria Susammesin, Verid Aria Waidia Dipeta Ym Windarti Nofriyan Nengsih Wiranda Dellarosa Yasir Muammar Lubis Yofita Sandra, S.Pd., M.Pd., Zico Farlin, Dr. Budiwirman, M.Pd., Yunus, Budi Andri Yusni Ikhwan Yusni Ikhwan Siregar Zakaria Kaharudin Zulkifli &#039; Zulkifli Zulkifli Zurya Hanifa