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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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Sebaran Nitrat, Fosfat dan Kelimpahan Fitoplankton di Muara Sungai Kampar Kabupaten Pelalawan Arbianti, Purnama; Nurrachmi, Irvina; Efriyeldi, Efriyeldi
Jurnal Perikanan dan Kelautan Vol 22, No 2 (2017)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.22.2.1-9

Abstract

Masuknya massa air pasang dalam jumlah yang besar di muara Sungai Kampar disebutmasyarakat setempat sebagai bono. Bono merupakan fenomena alam yang disebabkanoleh gelombang pasang yang bertemu dengan arus Sungai Kampar. Arus pasang surutdi muara Sungai Kampar dapat mempengaruhi penyebaran nitrat, fosfat dan kelimpahanfitoplankton. Fitoplankton adalah tumbuhan renik yang hidup melayang di perairandan pergerakannya sangat tergantung pada arus. Penelitian ini dilaksanakan pada bulanJanuari 2017 di muara Sungai Kampar, Pelalawan yang bertujuan untuk mengetahuisebaran nitrat, fosfat serta hubungannya dengan kelimpahan fitoplankton denganmenggunakan metode survey. Metode pemilihan lokasi dengan purposive samplingyang dilakukan di tiga stasiun saat pasang menuju surut dan surut menuju pasang denganpertimbangan telah mewakili wilayah muara Sungai Kampar. Hasil penelitianmenunjukkan bahwa sebaran nitrat, fosfat dan kelimpahan fitoplankton akan semakinkecil menuju ke arah laut dan yang terjadi saat pasang menuju surut lebih tinggi dibandingsaat surut menuju pasang. Sebaran kelimpahan fitoplankton lebih dipengaruhinitrat dibandingkan fosfat. Berdasarkan data tersebut dapat diketahui bahwa nitrat danfosfat bersumber dari sungai.
Tingkat Kesuburan Perairan Berdasarkan Kelimpahan Fitoplankton dan Nitrat-Fosfat Terhadap Tingkat Kekeruhan Muara Sungai Rokan Kabupaten Rokan Hilir Ridhawani, Fiki; Ghalib, Musrifin; Nurrachmi, Irvina
Jurnal Perikanan dan Kelautan Vol 22, No 2 (2017)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.22.2.10-17

Abstract

Penelitian ini dilaksanakan pada bulan Februari 2017 bertempat di Muara Sungai Rokan,Kabupaten Rokan Hilir. Penelitian bertujuan untuk mengetahui tingkat kesuburanperairan dan tingkat kekeruhan muara Sungai Rokan serta mengetahui hubungannya.Metode yang digunakan selama penelitian adalah metode survei dan penentuan titikstasiun dengan cara purposive sampling. Pengambilan sampel parameter Fisika danKimia secara in situ seperti kekeruhan, kedalaman, kecerahan, kecepatan arus, suhu,salinitas, oksigen terlarut (DO), derajat keasaman (pH). Hasil analisis kekeruhan berkisarantara 173–749 NTU, kelimpahan fitoplankton rata-rata yaitu <302 ind/l dan spesiesfitoplankton yang ditemukan paling banyak dari kelas Bacillariophyceae yaitu 16spesies. Konsentrasi nitrat berkisar 0,0625 – 0,9431 mg/l, sementara konsetrasi fosfatberkisar dari 0,2131 – 0,3466 mg/l. Pengukuran kualitas perairan seperti kecepatanarus 0,85 m/dtk, kecerahan 16,6 cm, kedalaman 3,77 m, suhu 29,7 ºC, pH dengan 7-8,DO 5,4 mg/l dan salinitas 20 ppt. Berdasarkan hasil penelitian, tingkat kekeruhan sudahmelebihi baku mutu lingkungan air laut, sedangkan tingkat kesuburan perairantergolong rendah. Nilai produktivitas primer kotor menunjukkan bahwa lokasi penelitianini, fotosintesis masih dapat berlangsung dengna baik, namun respirasi yang dibutuhkanlebih besar daripada proses fotosintesis.
STUDI KANDUNGAN MINYAK DAN STRUKTUR KOMUNITAS MAKROZOOBENTHOS DI PERAIRAN SEKITAR BUANGAN LIMBAH CAIR KILANG MINYAK PERTAMINA UP II DUMAI Nurrachmi, Irvina; Amin, Bintal
Jurnal Perikanan dan Kelautan Vol 12, No 01 (2007)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.12.01.64-70

Abstract

Study on the effects of oil content on the macrozoobenthic community in thecoastal waters receiving oil refinery effluents has been conducted. Samples ofwater and sediment were collected in August 2006 from three stations in oilrefinery and one control station in far distance from the oil refinery area. Waterquality parameters measured in the present study were still in the tolerable levelfor the aquatic biota. Oil content in the stations close to the oil refinery (10.17 -12.17 ppm and 11.17 - 15.42 ppm) was higher than the control station (6.92 and6.17 ppm) at high and low tide respectively. The abundance of macrozoobenthicat the control station (333.23 id/m2) was higher that the oil refinery (151.50 -281.25 ind/m2). Simple linear regression showed that macrozoobenthic abundancewas negatively correlated with oil content in the water column (Y = 431.92 -17.81 X; r = 0.64) and it was positively correlated with total organic matter in thesediment (V = -174.55 + 27.23X: r = 0.69). This study showed that the oil refineryand its related activities have significant contribution to the elevated oil contentand the decreasing water quality which finally affect the macrozoobenthiccommunity structure in the surrounding aquatic environments.
TOXICITY TO Artemia salina AND PHYTOCHEMICAL COMPONENTS OF Thalassia Hemprichii SEAGRASS ON NIRWANA BEACH PADANG CITY WEST SUMATERA PROVINCE Arifin, Adani Fatahilal; Nurrachmi, Irvina; Efriyeldi, Efriyeldi
Jurnal Perikanan dan Kelautan Vol 25, No 3 (2020)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.25.3.163-171

Abstract

Many of marine ecotourism activities on Nirwana Beach has had a negative impact to the development of seagrass ecosystems. Pressure that occurs on the coastal ecosystem becomes a trigger factor seagrasses to adapt with produce certain compounds for maintain immunity, the name is bioactive compounds. This research was aimed to know toxicity to Artemia salina and phytochemical component of Thalassia hemprichii seagrass from Nirwana Beach by using experimental method. Two seagrass extracts with different solvents have been made in the Marine Chemistry Laboratories for use in toxicity and phytochemical tests. The results of the test are displayed in tabular or graphical form and analyzed descriptively. The results of toxicity testing showed that seagrass had a toxicity level of 446.872 ppm (n-hexane solvent) and 218.183 ppm (methanol solvents), both of extract are toxic to the Artemia salina. Phytochemical testing shows tannin compounds founded in extracts with n-hexane and methanol solvent, alkaloids and triterpenoids compound contained in extracts with methanol solvent.
Effect of Urea with Various Doses on Skeletonema costatum Cell Growth Rosa, Mila; Siregar, Sofyan Husein; Nurrachmi, Irvina
Jurnal Perikanan dan Kelautan Vol 26, No 3 (2021)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.26.3.192-198

Abstract

This research was conducted in March 2020 at BPBALP Teluk Buo, West Sumatera. This research aimed to determine the best dose for urea usage on S. costatum cell growth. The method used in this research was an experimental method using Completely Randomized Design (CRD) with one factor, which was the various doses of urea fertilizer consisting of five treatments with three replications. Urea various doses used were 0 ppm (control treatment), 40 ppm (treatment A), 60 ppm (treatment B), 80 ppm (treatment C), and 100 ppm (treatment D) totaling 15 treatment units. The tested organism in this research was S. costatum. The container used was a plastic jar with 2 liters capacity. The parameters tested in this research were the maximum cell population density achieved by seven days of maintenance, absolute growth rate, relative growth rate, and specific growth rate. The results showed that the best cell density was found at the treatment D (100 ppm), which was 1,228 x 104 cells / mL and the lowest cell density was in the control treatment (without urea) which was 533 x 104 cells / ml. The results of water quality measurements during the study were still in an adequate range and met the maintenance requirements of S. costatum. The range of water quality parameters were salinity 26-28 ppt,  temperature of 25-27oC, and pH of 8.
Bioakumulasi Logam Cd, Cu, Pb dan Zn Pada Beberapa Bagian Tubuh Ikan Gulama (Sciaena ruselli) dari Perairan Dumai, Riau Irvina Nurrachmi; Bintal Amin; Muhammad Nudi Habibi
Maspari Journal : Marine Science Research Vol 2, No 1 (2011): Edisi Januari
Publisher : UNIVERSITAS SRIWIJAYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (300.911 KB) | DOI: 10.36706/maspari.v2i1.1117

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.
DISTRIBUSI MAKROZOOBENTHOS DI PERAIRAN AEK MANIS KABUPATEN SIBOLGA SUMATERA UTARA Irvina Nurrachmi; Zulkifli &#039;; Esra Waty
Berkala Perikanan Terubuk Vol 38, No 1 (2010): Februari 2010
Publisher : Fakultas Perikanan dan Kelautan, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (699.146 KB) | DOI: 10.31258/terubuk.38.1.%p

Abstract

This research was conducted in May 2009 in between District AekManis waters Sibolga North Sumatera in order to determine the correlationsediment organic material content and makrozoobenthos abundance.Determinantion of the research station was randomly composed of 4 station and 5sampling point where each point sampling distance of 200 meters wich werebased on the initial sampling paoint. Makrozoobenthos encountered and thestudy area there 26 genera of 3 classses, namely class gastropoda, bivalve.Polychaeta. Individuals from the class of individuals who gastropoda us mostoften found. On the whole it can be seen that the relation between sediment organicmaterial content and makrozoobenthos abudance show a positive correlation, thehighercontent of organic material wiil lead to the higher of the makrozoobenthosabundance.
Saline effect of different heavy metal accumulation of pb and Zn in shells of blood (anadara granosa) Dharma Eka Putra; Yusni Ikhwan Siregar; Irvina Nurrachmi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 1, No 2 (2014): Wisuda Oktober Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

Accumulation of Pb and Zn in Blood Shells can be seen that the Shellfish not respond toheavy metal that accumulates in the body at different salinity. Evaluation of the abilityaccumulation Shellfish Blood (Anadara granosa) against Pb fluctuated. While metals Zn showeda fairly high response in the process of accumulation of heavy metals in blood Shells.The concentration of Pb at 20 ppm salinity treatments were the highest found in bothreplicates with a concentration of 0.05 ppm which is equal to 0036 mg / g. While the data waslowest for the first repeat also with a concentration of 0.05 ppm was 0.0027 mg / g. While theconcentration of Zn in the treatment of 20 ppm the highest salinity found in both replicates witha concentration of 2 ppm which is equal to 0.86 mg / g. While the Zn concentration was lowestfor the second replay with 1.5 ppm concentration of 0.38 mg / g.Water quality at each research station there was no difference so far. However, waterquality in the study site contained a water quality to support shellfish life blood. Initialtemperature in this study is the final temperature is 290C and 280C.Keywords: Heavy Metal, Anadara granosa, Salinity
The Relations Between the Concentration of Nitrate and Phosphate to Abundance of Dinoflagellates in Enhalus acoroides Beds in Sungai Enam Coastal Waters of Bintan Regency of Riau Islands Province Dwi Putri Pratiwi; Irvina Nurrachmi; Thamrin &#039;
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

The research was conducted in June 2015 in Sungai Enam coast of Bintan Island, with the aims to know the difference abundance of dinoflagellates in every station and to knows the relations between nitrate concentration and phosphate concentration to the abundance of dinoflagellates in seagrass beds. The samples were taken from 3 stations with 3 sampling points. The result showed that the average of nitrate concentration was 0.0029 mg/l and the average of phosphate concentration was 0.1219 mg/l. This research identified 10 species of dinoflagellates, with the highest abundance was found in station 1 (0.13 cells/cm2) and the lowest was found in station 2 (0.10 cells/cm2). The results of the simple linear regression of nitrate and phosphate concentration showed a positive relation with dinoflagellates abundance, that means if the concentration of nitrate and phosphate raising the dinoflagellates abundance was also increasing.Key words: nitrate, phosphate, Dinoflagellates, Sungai Enam Waters, Bintan
Isolation And Sensitivity Test of Heterotrophic Bacteria From Marine and Estuary Waters of Low Salinity In Siak against Pathogenic Bacteria Rizki Hamdani; Feliatra Feliatra; 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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Abstract

ABSTRACT             Heterotrophic bacteria are a bacteria that use organic matter as a source of nutrients. It also has potential as antibacterial to pathogenic bacteria. The research was conducted from June to September 2017. The aim of this research was to determine the ability of bacterial isolates to inhibit the growth of pathogenic bacteria (Vibrio alginolyticus, Aeromonas hydrophila and Pseudomonas sp.) and determine the species of haterotrophic bacteria in the research area based on PCR method of 16S rRNA sequence. The results showed that twenty five pure bacteria isolates and only ten isolates could be sequenced. Bacterial isolates H2, H4, H8, H10, H12, H15, H16, H17 and H24 were able to inhibit the growth of pathogenic bacteria and were classified into three categories namely strong category (10-20 mm), medium category (5-10 mm) and weak category (≤ 5 mm). Based on the 16S rRNA analysis, it was found that ten identified isolates included Bacillus sp., Bacillus cereus, and Pseudomonas aeruginosa with a homology level of 81-99%. Based on the results of simple linear regression test showed the relationship between the number of heteretrophic bacteria with environmental parameters measured in the very weak category (r = 0,19). Keywords: heterotrophic bacteria, antibacterial, moleculer analysis, 16S rRNA 
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