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All Journal Maspari Journal Jurnal Perikanan dan Kelautan Berkala Perikanan Terubuk Jurnal Ilmu Lingkungan Jurnal Ilmu Perairan (Aquatic Science) 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 Jurnal Perikanan dan Kelautan Tropical Marine Environmental Sciences Jurnal Natur Indonesia
Irvina Nurachmi
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Earth & Planetary Sciences Education Energy Environmental Science Immunology & microbiology Materials Science & Nanotechnology Physics Social Sciences

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ANALYSIS OF METAL CONTENT OF Pb, Cu AND Zn IN WATER AND SEDIMEN FROM COASTAL KUNDUR ISLAND KARIMUN REGENCY OF ,RIAU ARCHIPELAGO PROVINCE Nababan, Sumiati Friesledi; Nurrachmi, Irvina; Nedi, Syahril
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                The reseach was conducted on water and sediment in Kundur Island water to find out metal of Pb,Cu and Zn. The research used purposive method with determination of research areas. The sample was taken on March 2018 and analysis on April 2018 inMarine Chemical Laboratory, Faculty of Fisheries and Marine, University of Riau. The results showed that the metal of Pb in water ranged from 0,2996 – 0,4685 mg/l. The content of Cu 0,2997 – 0,8424 mg/l and Zn 0,5428 – 0,9355 mg/l. The metal of Pb in the sediment ranged from 15.5383 - 22.8933 μg/g. Cu 3,5117 - 7,4750 μg/g and Zn 47,4067 – 77,0167 μg/g. Keywords: Metal content of Pb, Cu, and Zn, Water and Sediment, Kundur Island
Concentration, distribution, and correlation of heavy metals in seawater, sediment,and Cerithidea obtusa from coastal waters of Singkep Island, Riau Archipelago Province Amin, Biotal; Nurrachmi, Irvina; ', Jamalus
Indonesian Journal of Environmental Science and Technology Vol 1, No 1 (2014)
Publisher : Universitas Riau

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Concentration,  distribution  and  correlation  of  seven  heavy  metals  in  seawater,  sediment  and gastropod Cerithidea  obtusa from coastal waters in the proximity of abandoned tin mining in Singkep Island has been evaluated. Samples were taken from five stations and heavy metal analysis was carried out by using AAS Perkin Elmer 3110 in Marine Chemistry Laboratory Faculty of Fisheries and Marine Science University ofRiau. The mean concentrations  ofCd, Cu, Pb, Zn, Ni, Mn and Cr were 0.0373,  0.0776,  0.1340,  0.1692,01789,  0,1205  and  0.3232  mg/1 in  seawater;  2.0445,   11.5359,  24.6859,  23.7992,  13.2925,  13.1097  and79.0821  f.lg/g in sediment and 3.03, 69.71, 14.30, 120.73,  11.62, 56.29 and 18.75  J..lg/g in C. obtusa, respec­ tively. In general, the concentrations of metals in coastal water receiving effluents from abandoned tin mining activities in Singkep Island were higher than in coastal waters with less mining activities. Concentrations  of all those metals in seawater were positively correlated with sediment and  gastropod and its concentrations   in sediment  were  also  positively  correlated  with  those  in  gastropod.  Mean  concentration   of  all  metals  in sediment were still below the ERM values, except for Cd which was exceeded the ERL but  they were all still below the ERM  values.  Continuous  environment  monitoring  programs  should  be implemented  in Singkep Island coastal waters to evaluate possible increase of heavy metal threat as some new sand and bauxit mining activities are taking place.Key words: heavy metal, seawater, sediment, Cerithidea obtusa, mining
Toxicity of Cadmium (Cd) and Copper (Cu) on Growth of Microalgae Isochrysis galbana and chlorophyll- a Content Sembiring, Herbin; Nurrachmi, Irvina; Hindarti, Dwi
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 research was conducted from Mei until June 2019 at the Laboratory of Marine Chemistry and Ecotoxicology, Research Center of Oceanography, Indonesian Institute of Sciences, Jakarta. The purpose of this research was to determine the 96-h IC50, LOEC, NOEC and the chlorophyll-a content after the exposure of cadmium and copper  to microalgae I. galbana. The result showed that  the response due to the treatmeant given is not from the influence of water quality parameters, the 96-h IC50 value of cadmium and copper for growth of I. galbana was  1.3706mg/l and 0.0117 mg/l,  respectively the LOEC cadmium and copper was 0.32 mg/l and 0.0056 mg/l, the NOEC cadmium and copper was <0.32 mg/l and<0.0056 mg/l. Based on data IC50, cooper was more toxic than cadmium to the microalgae I. galbana. The chlorophyill-a content correlates with the percent decrease in microalgae cell density. Keyword :IC50, LOEC, NOEC, I. galbana, Toxicyty
Toxicity of Eucheuma cottonii seaweed extract with Methanol and N-Hexane solvents for Artemia salina larvae Kaharudin, Zakaria; Nurrachmi, Irvina; Efriyeldi, Efriyeldi
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 Seaweeds are very popular in the world of commerce, in science known as algae. Algae consists of four classes: Rhodophyceae (Red Algae), Phaeophyceae (Brown Algae), Chlorophyceae (Green Algae), and Cyanophyceae (Green-blue algae). Seaweed contains secondary metabolite compounds in the form of alkaloids or flavonoids that are useful as medicines and other purposes such as cosmetics and other industries. Seaweed is known to be rich in essential nutrients, such as enzymes, nucleic acids, amino acids, minerals, trace elements and vitamins A, B, C, D, E and K so it is also known as traditional medicine for cough, asthma, bronchitis, tuberculosis, abdominal pain, fever and rheumatism. This research was conducted in February - March 2018 in Sugie Village, Karimun Regency, Riau Islands Province, which aims to produce seaweed extract E. cottonii using Methanol and N-Hexane solvent and knowing LC50 value of Seaweed extract E. cottonii. Data were obtained by using BSLT (Brine Shrimp Lethality Test) method. The results of the study showed that the extract obtained from 5 kg of seaweed (wet weight) as much as 513 mL of concentrated extract. Seaweed extract with type E. cottonii was toxic to test animal A. salina. The LC50 value of E. cottonii extract dissolved in methanol was 40.2438 ppm.Keywords: toxicity, Extract of Seaweed, Desa Sugi 
RELATIONSHIP CONCENTRATION NITRATE, PHOSPHATE AND SILICATE WITH ABUNDANCE OF PLANKTONIC DIATOM IN THE WATERS OF PANGKALAN SESAI VILLAGE,DUMAI ,RIAU PROVINCE Putri, Zulherija; Nurrachmi, Irvina; Elizal, Elizal
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 Diatom is the most primary producer in marine waters and is abundant in surface areas that have sufficient light intensity and are rich in nutrients. This research was held on 12-24 May 2018 in the waters of Pangkalan Sesai village, Riau province. The study aims to analyze the concentration of nitrates, phosphate, silicate and analyze the abundance of planktonic diatoms as well as see the relationship of nitrate, phosphate and silicate against diatomic abundance of planktonic. The method used in this research is a survey method that is to perform observations and sampling directly, then proceed with the identification of planktonic diatoms samples in the laboratory. Water quality measurements are done in situ and ex situ consisting of parameters, physical biology, and chemistry. The concentration of nitrate ranged from 0.0367 – 0.0506 mg/l, phosphate concentrations ranged from 0.0840 – 0.1397 mg/l and silicate concentration of 0.0502 – 0.0692 mg/L. Diatom planktonic was found in the waters of Pangkalan Sesai village as many as 9 (nine) genera. Based on the results of multiple linear regression analyses obtained the value of the physical correlation (R) with the value 0.667 indicates that the relationship between nitric concentration, phosphate and silicate in diatoms is moderate. Then the value of R Square (R2) is worth 0.444 meaning the percentage of donations from the variable nitrate, phosphate and silicate against diatoms is 44.4% and the remaining 55.6% is influenced by other factors.Keyword: The abundance, nitrate, phosphate and silicate, Diatom, Pangkalan Sesai
TOKSISITY EXSTRACT SEAWEEDS E. cottoniiwith N-HEKSANA SOLVENT AND ETIL ASETAT TO BRINE SHRIMP Artemia salina Hardiko, Syefri; Nurrachmi, Irvina; Mulyadi, Aras
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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ABSTRACTSeaweeds have cultivation potential which is one of the most main export product Indonesian country. Several research about species Eucheuma cottonii previously found some new advantages the one is natural antiseptic. This research was conducted in March to April 2018 at Laboratory of Natural and Mineral Materials Department of Chemical Engineering, Faculty of Engineering, University of Riau and Laboratory of Marine Chemistry. The purpose of this research is to obtain seaweed extract E. cottoni with n-heksana and etil asetat solvent and to know toxicity value seaweed extract. The method used to analyze this research is experiment. This research used rancangan acak lengkap (RAL). The handling was conducted with giving different concentration handling from Artemia salina (10, 100, 1000 ppm) by three repetitions. The results showed that extract levels which is obtained using etil asetat solvent is 350 mL, while n-heksana extract is obtained inadequate to tested. Extract value LC50etil asetat E. cottoni 22,1870 ppm. Keyword : Toksisitas, Eucheuma cottonii, N-heksana, Etil Asetat
Bioakumulasi Logam Cd, Cu, Pb dan Zn Pada Beberapa Bagian Tubuh Ikan Gulama (Sciaena ruselli) dari Perairan Dumai, Riau Nurrachmi, Irvina; Amin, Bintal; Habibi, Muhammad Nudi
Maspari Journal : Marine Science Research Vol 2, No 1 (2011): Edisi Januari
Publisher : UNIVERSITAS SRIWIJAYA

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Abstract

Determination of heavy metal concentrations (Cd, Cu, Pb and Zn) in  different parts (muscle, bone, scale, intestine, gills and fin) of a croacker fish (S. russelli) collected from Dumai coastal waters were carried out during May to July 2009. The concentration of each metal was determined by AtomicAbsorption Spectrophotometer Perkin Elmer 3110 in the Marine Chemistry Laboratory, Marine Science Department University of Riau Pekanbaru. The results showed that Zn was found to be the highest concentrations in most of the fish body parts analyzed followed by Pb, Cu and Cd in both samples from the western and eastern regions of Dumai coastal waters. In general, the concentrations of all metals analyzed in the present study were higher in fish collected from the eastern region of Dumai coastal waters where more anthropogenic activities such as industries and human habitations along the coastal area were found. The concentration of heavy metals observed were Cd:  0.098 – 0.103, 0.189 – 0.283, 0.099 – 0.289, 0.107 – 0.302, 0.182 – 0.377 and 0.118 – 0.397; Cu: 0.130 – 0.198, 0.189 – 0.341, 0.082 – 0.073, 0.132 – 0.285, 0.520 – 0.746 and 0.175 – 0.337; Pb:  3.979 – 4.109, 4.144 – 4.601, 0.970 – 2.527, 2.853 – 4.367, 5.053 – 7.074 and 4.637 – 6.262 and Zn:  5.713 – 5.755, 7.956 – 8.558, 4.649 – 6.232, 5.730 – 7.745, 8.988 – 11.115 and 8.777 – 10.686 µg/g for muscle, bone, scale, intestine, gills and fins respectively. Concentrations of heavy metals in each body part of the fish were as follow: fin > gills > intestine > scale > bone > muscle for Cd; gills >  bone > fin > intestine > muscle > scale for Cu; gills > Fin > bone > intestine > muscle > scale for Pb and gills > fin > bone > intestine > scale > muscle for Zn. The concentrations of heavy metals in muscle were lower than other analyszed organs in the present study and this was considered to be an advantageous from the human health points of view as because muscle constitute the greatest mass of the fish that is consumed.
IDENTIFICATION OF MACROFAUNAATTACHED ASSOCIATED WITH MANGROVE IN SUNGAITOHOR VILLAGE MERANTI DISTRICT RIAU Fitriansah, Heru; Samiaji, Joko; Nurrachmi, Irvina
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 Literatures on macrofauna organisms attached to mangrove islimited. The purpose of this research is to obtain the informationon macrofauna organism within the mangrove ecosystem. The research was conducted in December 2017. method used was direct purposive sampling. Macrofauna organisms attached and mangrove type were identified using identification books. The results obtained indicate that the most dominant organisms belonged to molluscs and crustaceans. Seven gastropod species and two crustaeans were(Cerithideacingulata, Cerithideaquadrata, Neritalineate, Chicoreuscapucinus, Cassidulaaurisfelis, Achatinellamustelina, Echinolittorinavidua, BalanusspandLlyoplaxsp). The type of mangrove vegetations were consistedof found, (Avicennia alba, Rhizopora apiculata,). Keywords:macrofauna, mangrove ecosystem, sungaitohor
Struktur Komunitas Diatom Epifit pada Pelepah Nypa Fruticans di Sekitar Pulau Cawan Kabupaten Indragiri Hilir Provinsi Riau Arifin, Nur; Siregar, Sofyan Husein; Nurrachmi, Irvina
Jurnal Perikanan dan Kelautan Vol 23, No 1 (2018)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.23.1.1-7

Abstract

Diatoms are the largest phytoplankton group and as the primary producer in marine waters. This research was conducted in September 2016 around Cawan Island of In-dragiri Hilir Regency of Riau Province. The aim of this research was to determine the structure of epiphytic diatom community on the midrib of Nypa fruticans and to deter-mine water quality as well as to see the relationship of epiphytic diatoms abundance with water quality. The survey method was applied in this research and sampling loca-tion determined by purposive sampling. Measurement of water quality was done by in situ and ex situ which consist of biology, physics and chemical parameters. Nitrate concentrations in waters ranged from 0,0139 to 0,0639 mg/l and phosphate concentra-tions ranged from 0,1342 to 0,2345 mg/l. The epiphytic diatoms on the midrib of Nypa fruticans in Cawan Island consist of 18 genera of diatoms, the average value of abun-dance ranged from 7.385 to 23.042 individual/cm2, the mean value of diversity index ranged from 1,41 to 2,05.The dominance index value ranged from 0,27 to 0,52 and the uniformity index value ranged from 0,58 to 0,91. Meanwhile, the correlation of diatom abundance with concentration of nitrate was 0,21 (weak relationship) and correlation of diatomic abundance with phosphate concentration was 0,11 (very weak relation-ship). Based on the result of epiphytic diatom calculation on the midrib of Nypa fruti-cans can be concluded that the waters in Cawan Island was in medium contaminated condition.
STUDI PADATAN TERSUSPENSI DI PERAIRAN PULAU TOPANG KABUPATEN KEPULAUAN MERANTI PROVINSI RIAU Jewlaika, Lady; Mubarak, Mubarak; Nurrachmi, Irvina
Jurnal Perikanan dan Kelautan Vol 19, No 1 (2014)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.19.1.53-66

Abstract

This research was conducted in December 2013 located in the Topang Island Waters. Samples were analyzed in the Sea Chemical Laboratory of Marine Science Department of Fisheries and Marine Science Faculty of Riau University. The purpose of this study is to deter-mine the distribution patterns of suspended solids at the low tide to the high tide and the high tide to the low tide in the Topang Island Waters. This study used a survey method which con-sists of 22 stations, one station with 2 sampling was at low tide to the high tide and high tide to the low tide. The pattern of distribution of suspended solids in the Topang Island Waters is uneven, when low tide to the high tide the highest TSS content is in the southeast, south, southwest and northeast of Topang Island Waters and when the high tide to the low tide, the highest TSS content is in the southeast, south and northeast of Topang Island Waters. The highest content of TSS is 70-100 mg/l which is quite high and less precise as source of fishing activities, then the lowest TSS content is 30-60 mg/l were classified as normal and decent enough for fishing activities. 
Co-Authors ', Intan ', Jamalus AA Sudharmawan, AA Abdullah &#039; Adam Dionfriski Adani Fatahilal Arifin Ade Mulyana Aden, Aden Adi Maulana Adrizal, Taufik Afriansyah, M. Afrizal Tanjung Afrizam &#039; Afrizani, Syafrinaldi Agustinus Robert Uria Albukhori, Mustaqim Alfeus Jhonson Armada H Alghani, Muhammad Roif Alqoriffah Hasanah Anadri, Rifqi Rafif Andini, Dilla Andre Thessalonians Marpaung ani ani Aras Mulyadi Arbianti, Purnama Areza Maulana Arifin, Adani Fatahilal Aritonang, Simon Hasintongan Aryanti, Nisa Aslam, Atthoriq Habib Harry Bestari, Bismi Yanda Putri Bintal Amin Bintang Rapshodio Tane Biotal Amin, Biotal Dameria, Gabriella Darmawan, Ernanda P. Dellarosa, Wiranda Dessy Yoswaty Dewi Seswita Zilda Dewita Dewita Dewita Dewita Dharma Eka Putra Dilla Andini Dionfriski, Adam Dodik Febriyantoro, Dodik Dwi Hindarti, Dwi Dwi Putri Pratiwi Dyonisius Hutauruk Efriyeldi, Efriyeldi Eka Puspa Sari Elizal, Elizal Esra Waty Fadel Fadel Fadillah, Yuda Fathurrahman, Febri Fatma, Nisa Tria Fatmanita Fatmanita Fatmanita, Fatmanita Febbyolla, Selfi Anidal Febeyessy Aritonang Febri Naldi Feffiana M Amin Feliatra Feliatra, Feli Ferdi, Aidil Fitriani, Ersa Fitriansah, Heru Ghifari, Muhammad Fadil Gregorius Agung Gustini Sri Ulina Hanifa, Zurya Hardiko, Syefri Haura, Sari R. Al Hazmi, Arief Ilham Ilahi Indri Wahyuni Irwan Effendi Irwan Irwan Islamiati, Bening Izzati, Salsabila Jefri Affandi Jewlaika, Lady Joenathan Sarumpaet Joko Samiaji Jonter Sitepu Kaharudin, Zakaria Khaironisa, Riska Khairunnisa Khairunnisa Khasena, Aisyah Kusnadi, Yudi M, Ridwan Rafsyanjani. Maharani, Tasya Putri Mahmudah, Dewi A. Manik, Mei Suyanti Masjudi, Heri Merry Sintya Dewi Michael Prawira, Michael Mikael H Dolok Saribu Mila Rosa Mubarak &#039; Mubarak Mubarak Mudinillah, Adam Muhammad Aliv Kusuma Putra Muhammad Amien Muhammad Hafizh Muhammad Irfan Muhammad Nudi Habibi Muhammad Nudi Habibi Muhammad Syarif Musrifin Galib Musrifin Ghalib Nababan, Sumiati Friesledi Naldi, Febri Nickson Panjaitan Nila Sari Lubis Nugraha, Rafiq Nugraha, Rafiq Prima Nur Arifin, Nur Nurfalah, Risna Nursyirwani, Nursyirwani Nurul Abdiah Nasution Nurvana, Resti Panggabean, Salmi Engriani Permatasari, Mutiara Indah Pratama, Farrel Prayitno, Betari Erlinda Priyono, Franciscus Edi Putra &#039; Putra, Rajiv R. Putri Andini, Putri Putri Maharani Putri, Dinda Maharani Putri, Nadila Putri, Rukiana Audi Putri, Zulherija Rafsyanjani M, Ridwan Rahman, Nanda Rahmat Hidayat Ramadhan, Ragiel Ramadhoni, Aulia Zahro Rambe, Sakinah Rachmadani Ridhawani, Fiki Rifardi Riska Khaironisa Rizki Hamdani Rizki, Sofia Wanda Rosa, Mila Rozali &#039; Rozalina, Rozalina Rozalina S.Pd. M Kes I Ketut Sudiana . Sari, Lita Sari, Natalia Widya Savita, Dinda Selfi Anidal Febbyolla Selvia, Seli Sembiring, Herbin Shandy, Jacinda Qoidatun Shelviyanti, Nabila Sianturi, Yuli Rona Tamaria Sihaloho, Elpon Sinaga, Cindy Novitasari Sinaga, Merisa Debora Sinaga, Rimansius Siregar, Meiyanto Siregar, Sofyan Siti Nursubadriah Sitindaon, Dionisius Rahmat Martin Sitindoan, Benni Mario K. Sitohang, Margaretha Sitohang, Margaretha Sri Ulina Sofyan H. Siregar Sofyan Husein Siregar Sri Dewi Lestari, Sri Dewi Sufaidah, Siti Nur Sumanti, Susi Sumiati Friesledi Nababan Susiyanti. N Suzila &#039; Syafrizal Syafrizal Syafruddin Nasution Syahada, Melania Syahputra, Vico Andrian Syahril Nedi Syahrul Syahrul Syawfy Luthfiandra Syukri Fajar Tampubolon, Theresia Tane, Bintang Rapshodio Tantri, Ristamulia Tengku Rahma Lopi Thamrin &#039; Thamrin Thamrin Thamrin Thamrin Tri A Hadi Utami, Rahma I. Verid Aria Susammesin, Verid Aria Waidia Dipeta Ym Windarti Nofriyan Nengsih Wiranda Dellarosa Yasir Muammar Lubis Yunus, Budi Andri Yurestira, Ilham Yusni Ikhwan Yusni Ikhwan Siregar Zakaria Kaharudin Zaki, Raihan Zulkifli &#039; Zulkifli Zulkifli