Article Per Year (5 Year)
p-Index From 2021 - 2026
10.262
P-Index
This Author published in this journals
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
Unknown Affiliation
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

Published : 167 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 167 Documents
Search

 3   4   5   6   7 
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
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

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
ANALYSIS OF TOTAL OIL CONSENTRATION IN THE WATERS OF PELINTUNG INDUSTRIAL AREA Riska Khaironisa; Irvina Nurrachmi; Syahril Nedi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 8, No 1 (2021): Edisi 1 Januari s/d Juni 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

AbstractThis research was conducted in July 2020 in Pelintung Dumai Waters. The purpose of this study was to determine the total oil concentration in the waters of the Pelintung Industrial Area. The method used is a survey method which is conducted at 4 stations. Total oil concentration samples were analyzed by gravimetric method. Based on the results of the study, the highest oil concentration was in the Pelintung Industrial Area waters (station III), namely 0.3245 ppm and the lowest concentration was in the mangrove forest area (station IV), namely 0.0738 ppm. The results of the Anova test carried out on the total oil concentration value between research stations obtained p value (0.019) <0.05. This shows that the total oil concentration between research stations is different.Keywords: Pelintung Village, Oil
DISTRIBUSI DIATOM EPIFITIK SECARA VERTIKAL PADA BATANG Avicennia sp DI KAWASAN MUARA SEI UNDAN KABUPATEN INDRAGIRI HILIR Susiyanti. N; Sofyan Husein Siregar; Irvina Nurrachmi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This research was conducted from April-Mei 2013 in the Waters around the Estuary Sei Undan, Kabupaten Indragiri Hilir, Riau Province. The aim of this research is to understand the distribution and abundance of epiphytic diatom presenting on the trunk of the Avicennia sp which is related to water quality factor. Survey method was applied on this research where data were obtained by direct observation in the field. The samples of epiphytic diatom were analyzed in the Laboratory of Marine Biology. Water quality parameters were measured in situ.Six species of epiphytic diatom were found on the trunk. The abundance of epiphytic diatom on the trunk ranged from 0 to 9.59 ind/cm2. Beside that, water quality parameters were in the sufficient range for marine epiphytic diatom.Keywords: epiphytic, diatom, avicennia sp, Sei Undan
NITRAT CONTENT, PHOSPHATE, SILICATE AND ABUNDANCE OF PLANKTONIK DIATOM IN THE RUPAT OF BENGKALIS REGENCY OF RIAU PROVINCE Areza Maulana; Irvina Nurrachmi; Sofyan H. Siregar
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

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Abstract This research was conducted in January 2018 in Rupat Water of Bengkalis Regency of Riau Province.The purpose of this research is to know the relationship between nitrate, phosphate and silicates with abundance of diatom in Rupat waters of North and South in Rupat waters. The research method is purposive sampling method with 2 area and divided into 8 point station.The results showed that the concentration of Nitrate, Phosphate and Silicate that is; 0,154 mg/L ; 2,342 mg/L; 0,023 mg/L. Diatom species were found 15 species that is; Asterionella sp, Bacillaria sp, Biddulphia sp, Cerataulina sp, Chaetoceros sp, Ditylum sp, Eucampia sp, Fragilariopsis sp, Guinardia sp, Microspora sp, Minidiscus chilensis, Navicula sp, Rhabdonema sp, Thalassionema sp, Thalassiosira sp. Abundance of diatoms in region 1 and region 2 of 452,159 Ind/L; 503.181 Ind/L.The result of regression test showed that the relationship of nitrate concentration with diatom abundance has a moderate correlation, so that in Rupat waters, the concentration of nitrate, phosphate and silicate belong to oligotrophic waters (less fertile).  Key Words : Nitrate, Phospate, Silicate, Abundance Diatoms
ABUNDANCE OF POISONOUS BENTHIC DINOFLAGELLATE IN SEAWEED (Sargassum Sp) IN THE COASTAL WATERS OF NIRWANA WEST SUMATRA PROVINCE Nickson Panjaitan; 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

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

ABSTRACTThe study was held  in  January to February 2019. The purpose of this study was to determine the abundance of toxic benthic dinoflagellates on seaweed Sargassum sp. each station and to see the relationship of abundance of toxic benthic dinoflagellates with the quality of the waters in the seaweed ecosystem of Sargassum sp. in the waters of Nirwana Beach, West Sumatra Province. The method used in this study is a survey method. The results showed the highest genus abundance at the three research stations was the genus Prorocentrum with an average abundance value of 216.05 cells / g and the lowest genus abundance at the three research stations was the Gambierdiscus genus with an average abundance of 78.80 cells / g. Obtained simple linear regression test results show the concentration of nitrate and phosphate concentration is directly proportional to the abundance of dinoflagellates. The relationship between abundance of benthic dinoflagellate abundance with moderate relationship nitrate concentration and the relationship between abundance of benthic dinoflagellate abundance with strong relationship phosphate concentration.Keywords: Dinoflagellata, Benthic, Poisonous, Sargassum sp.
Community Structure of Bivalves in Seagrass Bed Ecosystem of Penyengat Island, Tanjungpinang City Riau Islands Province Yasir Muammar Lubis; Syafruddin Nasution; Irvina Nurrachmi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

ABSTRACTThe study was conducted in Penyengat Island in June 2014, Tanjungpinang City, Riau Islands Province. The Penyengat Island coastal is known as fishing area and as cruise line and this island has seagrasses ecosystem. The research aim was to determine the structure of bivalves and its relationship with seagrass density by using the survey method. There were 3 station choser each station were 3 placed line transects, and each transects have 3 plot with the area of 1 x 1 m². The resulsts of the study showed there were 8 species of bivalves from 5 famalies and 6 genus. The species were concisting of Meritrix meritrix, Mercenaria mercenaria, Pina bicolor, A granosa, A inflate, Barbatia bistrigata, Crassostrea gasar and Placuna placenta. There were two species of seagrasses identified, i. e. Enhalus acoroides, and Halophila ovalis. Based on simple regression analysis it was concluded that the relationship between the density of seagrass density and bivalves population had a very weak correlation (r = 0,06).Keywords: Penyengat Island, Bivalves, Seagrass, Community structure
PATTERNS OF DISTRIBUTION TOTAL SUSPENDED SOLID (TSS) IN RIVER ESTUARY KAMPAR PELALAWAN Rozali &#039;; Mubarak &#039;; 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

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study was conducted in April 2016 in Kuala Kampar estuary watersPelalawan. The purpose of this study to determine the level of the distributionpattern of suspended solids in the Kampar River Estuary at high tide to the ebband flow toward the post method used in this research is survey method, namelythe study sample was obtained in the field are considered to represent the Islandwaters Mendol, then the samples were analyzed in laboratories to test TSS (TotalSuspended Solid) distribution pattern of total suspended solids in waters KamparRiver Estuary seen that the accumulation of suspended particles at low tide andthe tide heading toward downs, TSS distribution pattern is at the highest value atthe time of ebb tide toward which the values obtained range from 500-1500 mg / l,This indicates that the incoming flow pattern during ebb tide towards very high tothe north. While the TSS distribution pattern that went into the water at low tide tothe obtained value of 700-1100 mg / l where the distribution pattern heading southlocation research.Keywords: Kampar River estuary, distribution patterns TSS (Total SuspendedSolid) Tidal.
DAYA ANTIBAKTERI EKSTRAK TERIPANG PASIR (Holothuria scabra) TERHADAP PERTUMBUHAN BAKTERI (Salmonella typhi) SECARA IN VITRO Feffiana M Amin; Dessy Yoswaty; Irvina Nurrachmi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Sea cucumbers are ones among the marine resources in Indonesian, among its group was sandfish (Holothuria scabra). Sandfish has potential as a new biopharmaceutical material due to very rich in secondary metabolites and also has a potential as an antibacterial. Salmonella typhi is pathogenic bacteria that can cause disease in humans. The purpose of the research was to determine on how much the ability of antibacterial inhibiton which have sandfish for S. typhi bacteria and then for knowing the bioactive compounds. The result showed that the sandfish extract has the ability to inhibit the growth of S. typhi bacteria. The ability of sandfish extract inhibitory is classified as a moderate range, i.e. 5 – 10 mm. Furthermore based on the result of phytochemical screening test, the compound has capable of inhibiting the growth of S. typhi bacteria were include alkaloids, saponins, steroids, and triterpenoids.Keywords : H. scabra, antibacterial, Salmonella typhi, bioactive.
AN ANALYSE CORRELATION OF CONCENTRATION NITRATE, PHOSPHATE AND SILICATE WITH THE ABUNDANCE OF DIATOMS ON NORTH COAST BENGKALIS ISLAND, BANTAN DISTRICT Gregorius Agung; Irvina Nurrachmi; Yusni Ikhwan
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

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The research was conducted in February 2015 in the North Coast Bengkalis Island, Bantan District. The purpose of this study was to analyze the correlations between the concentration of nitrate, phosphate and silicate as well as an abundance of diatoms, to provide information about fertility waters seen from the content of nitrate, phosphate and silicate as well as an abundance of diatoms in the water, so it can be used as a reference for the development of fisheries and the preservation of ecosystems in a sustainable manner, The research was used purposive sampling method with 3 stations and each station there are four sampling points. The results showed that the concentration of Nitrate, Phosphate and Silicate i.e 0.0747 mg/L; 0.0586 mg/L; 0.0542 mg/L . Diatom species were found 11 species i.e: Rhizosoleniaalata, Rhizosoleniadelicatula, Skeletonemacostatum, Lauderia borealis, NitzschiaSeriata, Isthmia SP, Biddulphiapulchella, Rhizosoleniaindica, Aulacoseria granulate, Lepctocylindrusanmeus and Ceralaulinadentata. An abundance of diatoms at Station 1 , Station 2 and Station 3 as much as 1916.67 Ind/L ; 1316.67 Ind/L ; 3241.67 Ind/L. The results of Regression test showed that nitrate concentrations correlations with diatom abundance of very strong correlation with the value of r (correlation coefficient) = 0.946. Relations with the abundance of diatoms phosphate concentrations are very strong correlations with the value of r (correlation coefficient) = 0.988. Relations with the silicate concentration of diatom abundance of strong correlationss with the value of r (correlation coefficient) = 0,550.Keywords: Nitrate, Phospate, Silicate, Abundance Diatoms,
ANALISIS TINGKAT KESUBURAN PERAIRAN MUARA SUNGAI MESJID KOTA DUMAI DITINJAU DARI NITRAT, POSFAT DAN KELIMPAHAN DIATOM Muhammad Amien; Syahril Nedi; 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

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Penelitian ini dilaksanakan pada bulan Agustus 2016 di muara Sungai Mesjid Kota Dumai dengan tujuan untuk mengetahui tingkat kesuburan perairan muara Sungai Mesjid ditinjau dari nitrat dan posfat serta hubungannya dengan kelimpahan Diatom.Metode yang digunakan adalah metode survei yang dilakukan pada 4 stasiun, masing-masing stasiun terdiri dari tiga titik sampling. Hasil penelitian menunjukkan bahwa konsentrasi nitrat pada stasiun penelitian berkisar  0,112 - 0,416 mg/L. Sedangkan konsentrasi posfat pada stasiun penelitian berkisar 0,021-1,021 mg/L. Pada setiap stasiun penelitian ditemukan 9 spesies diatom, kelimpahan diatom tertinggi terdapat pada stasiun 3 (4932,71 ind/L) dan kelimpahan terendah pada stasiun 4 (1501,25 ind/L).Hubungan kandungan nitrat dengan kelimpahan diatom diperoleh persamaan Y= 11033-1609x dengan nilai R2 = 0,205 dan r = 0,45. Dilihat dari nilai (r) hubungannya sedang artinyameningkatnya hubungan kandungan nitrat maka kelimpahan diatom juga akan meningkat. Sedangkan Hubungan kandungan posfat dengan kelimpahan diatom memiliki persamaan Y= 428,4+ 3232x dengan nilai R2 = 0,002 dan r = 0,04. Dilihat dari nilai (r) hubungannya sangat lemah. Ditinjau dari konsentrasi nitrat perairan muara Sungai Mesjid dapat di kategorikankurang subur (oligotropik).Sedangkan ditinjau dari posfat dapat dikategorikan mesotropik (kesuburan sedang).  Kata Kunci: Nitrat,Fosfat  Kelimpahan Diatom, muara Sungai Mesjid
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