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All Journal Jurnal Akuakultur Indonesia Jurnal Akuakultur Rawa Indonesia Jurnal Natur Indonesia Berkala Perikanan Terubuk Jurnal Ilmu Perairan (Aquatic Science) Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Jurnal Perikanan dan Kelautan Jurnal Ilmiah Pertanian JURNAL MANAJEMEN INDUSTRI DAN LOGISTIK Dinamisia: Jurnal Pengabdian Kepada Masyarakat Jurnal Ilmu Ilmu Agribisnis: Journal of Agribusiness Science Sociological Jurisprudence Journal Jurnal Iktiologi Indonesia (Indonesian Journal of Ichthyology) Jurnal Ruaya : Jurnal Penelitian dan Kajian Ilmu Perikanan dan Kelautan Al-Insyirah Midwifery : Jurnal Ilmu Kebidanan (Journal of Midwifery Sciences) Asian Journal of Aquatic Sciences Unri Conference Series: Community Engagement Journal of Coastal and Ocean Sciences Jurnal Hukum Saraswati Journal of Rural and Urban Community Empowerment Seandanan: Jurnal Pengabdian pada Masyarakat Journal of Law and Nation Inkubis: Jurnal Ekonomi dan Bisnis Jurnal Ruaya : Jurnal Penelitian dan Kajian Ilmu Perikanan dan Kelautan Jurnal Ilmiah Cano Ekonomos South East Asian Marine Sciences Journal Hukum Inovatif : Jurnal Ilmu Hukum Sosial dan Humaniora IPTEKIN : Jurnal Kebijakan Pembangunan dan Inovasi Jurnal Perikanan dan Kelautan Tropical Marine Environmental Sciences Jurnal Natur Indonesia
Irwan Effendi
Universitas Riau
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Effect of Different Salinity on the Growth of Chlorella sp in Laboratory Scale Culture Irwan Effendi; Mega Novia Putri; Ulfi Laili Astika; Ronal Kurniawan
Jurnal Natur Indonesia Vol. 22 No. 1 (2024): April
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM) Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jnat.22.1.21-27

Abstract

This study aimed to determine the optimal salinity in increasing the growth rate of Chlorella sp in laboratory scale culture. This research was conducted in July 2023 at the Marine Biotechnology Laboratory, Faculty of Fisheries and Marine Sciences, Universitas Riau. The experimental method was applied using a complete randomized design (CRD) with four treatments and three replicates. The treatments were as follows: T0 (control), T1 (25 ppt salinity), T2 (30 ppt salinity), and T3 (35 ppt salinity). The initial density of Chlorella sp was 250x103 cells/mL, and cell abundance observations were carried out for 14 days. The parameters observed were cell abundance, specific growth rate, and water quality (temperature and pH). The results showed that different salinity influenced the growth of Chlorella sp. 35 ppt salinity gave the best results on cell abundance of 266.66x104 cells/mL, with peak population occurring on day 10. Water quality during the study was still in the normal range and can be tolerated for the growth of Chlorella sp, and the temperature ranged from 25-31oC and pH 6.4-8.0
Reduction of Dispersant Pollutant (Linear Alkylbenzene Sulfonate) by Mangrove Plant (Rhizophora mucronata) Syahril Nedi; Irwan Effendi; Afrizal Tanjung; Elizal Elizal
Jurnal Natur Indonesia Vol. 21 No. 2 (2023): October
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM) Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

Linear alkylbenzene sulfonate (LAS) is the main component of dispersants that function as cleaners of various materials. The increasing use of LAS causes this compound to dominantly pollute coastal waters. Phytoremediation is the most environmentally safe alternative to physical and chemical methods. One of the potential plants as a phytoremediator is Rhizophora mucronata. This research is an experiment as an application of LAS pollutant control by R.mucronata plants in waters. After acclimatization and preliminary tests, the implementation of LAS phytoremediation tests by R. mucronata plants in seawater media was carried out at concentrations of A1: 25 mg/L, A2: 100 mg/L, A3: 175 mg/L, A4: 250 mg/L, and A5: 325 mg/L and control (Control without plants) as a simulation of the presence of pollutants in coastal waters. The method used was a completely randomized design (CRD) with one treatment and 3 replications. The reduction of LAS concentration in the test media and its effect on R.mucronata leaf chlorophyll and dissolved oxygen were analyzed at week 2 to week 4. The analysis results showed that LAS compounds could be reduced to 91.48% at week 2 and 97.40% at week 4. Plant Water quality parameters (dissolved oxygen, temperature and pH) were measured daily. Based on the study results, LAS can be reduced by R.mucronata plants 87-90.4% in week 2 and 95.1-97.4% in week 4. LAS exclusion by plants had a significant impact on the reduction of leaf chlorophyll content until week 4. LAS reduction by R.mucronata in the media can increase dissolved oxygen content as an indication of improved water quality. R.mucronata plants can be used as an alternative to control LAS pollution in waters
Utilization of Sago Liquid Waste Organic Fertilizer as a Culture Medium for Chlorella sp. Irwan Effendi; Mega Novia Putri; Ulfi Laili Astika; Ronal Kurniawan
Jurnal Natur Indonesia Vol. 21 No. 1 (2023): April
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM) Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

Chlorella sp. is a microalga that can grow and develop in wastewater media, including sago liquid waste that is not utilized and becomes a pollution material. This study aims to determine the utilization of sago liquid waste organic fertilizer on the growth of Chlorella sp. This research was conducted in February 2023 at the Marine Biotechnology Laboratory, Faculty of Fisheries and Marine Sciences, Riau University. The method used was the experimental method, by applying a complete randomized design (CRD) with four treatments and three replicates. The treatments were as follows: T0 (control), T1 (150 ml sago liquid waste), T2 (200 ml), and T3 (250 ml). The initial density of Chlorella sp. was 250 x103 cells/ml, and cell abundance observations were made for 14 days. The parameters observed were cell abundance, specific growth rate, and water quality (temperature and pH). The results showed that the utilization of sago liquid waste affected the abundance of Chlorella sp. 150 ml concentration and gave the best results on cell abundance of 233.33 x103 cells/ml with the peak population occurring on day 9. Water quality during the study was still in the normal range and can be tolerated for the growth of Chlorella sp, namely temperature ranging from 26-31o C and pH 6.2-8.0
Supplementation of Fermented Moringa Leaves in Feed on Blood Glucose of Striped Catfish (Pangasianodon hypophthalmus) Infected with Aeromonas hydrophila Windarti Windarti; Irwan Effendi; Ronal Kurniawan; Mega Novia Putri; Dimas Gusriansyah; Okta Rizal Karsih
Jurnal Natur Indonesia Vol. 22 No. 2 (2024): October
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM) Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jnat.22.2.92-99

Abstract

Moringa leaves can be used as an herbal plant in fish growth to prevent and treat bacterial infections. This study aims to determine the effect of fermented moringa leaves through feed on blood glucose in striped catfish (Pangasianodon hypophthalmus). This research was conducted from September to November 2023 at the Marine Biotechnology Laboratory, Faculty of Fisheries and Marine Sciences, Riau University. The method used is an experimental method using a completely randomized design with 4 (four) treatments and 3 (three) replicates; the treatment dose of fermented moringa leaves is T0 (control), T1 (10 g/kg feed), T2 (15 g/kg feed), and P3 (20 g/kg feed). The catfish measured 5.00 ± 1.00 cm and weighed 4.00 ± 0.50 g, reared in an 80 L tank at a stocking density of 1 fish / 4 L water. The maintenance was carried out for 60 days, and blood glucose observations were made at the beginning (H-1), day 30 (H-30), day 60 (H-60), and post-challenge test (H-75). The results showed that adding fermented moringa leaves to the diet did not affect the blood glucose of the catfish (p>0.05). This indicates that moringa leaves can keep the fish in normal condition after being challenged with Aeromonas hydrophila bacteria
Isolasi dan Identifikasi Bakteri Indigenous Pendegradasi Plastik dari Perairan Laut Dumai Provinsi Riau Mardalisa Mardalisa; Eza Buana Fatwa; Dessy Yoswaty; Feliatra Feliatra; Irwan Effendi; Bintal Amin
Jurnal Ilmu Perairan (Aquatic Science) Vol. 9 No. 1 (2021): Maret
Publisher : LPPM Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

Salah satu strategi dan pendekatan untuk mengendalikan dampak mikroplastik adalah denganteknologi bioremediasi yang memanfaatkan potensi mikroba atau bakteri indigenous. Perairan lautDumai saat ini menunjukkan kondisi pencemaran mikroplastik yang cukup tinggi, kondisi inimemungkinkan terdapatnya potensi bakteri indigenous yang adaptif terhadap lingkungan plastik.Penelitian ini bertujuan untuk mengisolasi dan mengidentifikasi potensi bakteri indegenous untukmendegradasi plastik dari perairan laut Dumai serta mengetahui perbedaan jumlah bakteri yangterdapat diantara stasiun penelitian. Penelitian ini dilaksanakan pada bulan Oktober-Desember 2020dengan metode eksperimen di Laboratorium Mikrobiologi Laut Fakultas Perikanan dan KelautanUniversitas Riau. Uji degradasi plastik menggunakan PET berukuran 1 x 1 cm yang dimasukkan kedalam media TSB kontrol dan media TSB yang terdapat isolat bakteri. Berdasarkan hasil penelitiandidapatkan 12 isolat bakteri yang berhasil diisolasi dari stasiun penelitian. Isolat bakteri tersebutmemiliki diamater yang berkisar antara 0,2-1,1 cm. Hasil uji degradasi plastik oleh bakteri didapatibahwa bahwa ISL 10 merupakan isolat yang menunjukkan aktivitas degradasi PET tertinggi, yaitusebesar 17,27% dengan diameter pembentukan biofilm sebesar 0,8 cm. Berdasarkan uji biokimiadan morfologi mikroba diketahui bahwa bakteri ISL 10 merupakan bakteri dari genus Bacillus.Koloni bakteri terbanyak terdapat pada statiun IV (TPI) dengan jumlah rata-rata bakteri 214,9 x 104CFU/ml.
Application of phytoimmunostimulant food to the hematology of common carp (Cyprinus carpio) preserved in brackish water Nasution, Nisfi Maulidia; Effendi, Irwan; Batubara, Ummi Mardhiah
South East Asian Marine Sciences Journal Vol. 2 No. 2 (2025): March
Publisher : Science, Technology, and Education Care

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61761/seamas.2.2.60-63

Abstract

This research was conducted from October to December 2023 at the Marine Microbiology Laboratory, Faculty of Fisheries and Marine Sciences, University of Riau. This study aimed to analyze the effect of adding guava leaves (Psidium guajava) on the hematology of common carp (Cyprinus carpio) reared in brackish water infected with Aeromonas hydrophila. The method used was an experiment with a Completely Randomized Design (CRD) of one level, the concentration of phytoimmunostimulant administration with five treatment levels and three replications, namely, P0 (commercial pellets), the addition of guava leaf flour dose P1 (1.0 g / 100 g feed), P2 (1.5 g / 100 g feed), P3 (2.0 g / 100 g feed), P4 (2.5 g / 100 g feed). Based on the study's results, it is known that adding guava leaf flour to common carp feed reared in brackish water media and challenged with A. hydrophila bacteria shows a significant effect (P < 0.05). The best dose was obtained in P2 (1.5 g/100 g feed) with the number of erythrocytes 1.54-1.63x106 cells/mm3, hemoglobin 5.93-7.80 g/dL, and hematocrit 30.33-37.67
Population Growth and Chlorophyll Content of Spirulina platensis Fertilized with Azolla microphylla Muhammad Aliv Kusuma Putra; Irvina Nurrachmi; Irwan Effendi
Tropical Marine Enviromental Sciences Vol. 1 No. 1 (2022)
Publisher : Department of Marine Science, Faculty of Fisheries and Marine Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/tromes.1.1.1-7

Abstract

Spirulina platensis is a marine microalga that has potential as a natural fish feed and is considered an absolute food supplement to combat malnutrition in some countries. Azolla microphylla is a water fern that has been cultivated, contains high protein, grows quickly and is widely found in tropical waters. This study analyzed the effect of liquid fertilizer of A.microphylla on population growth and chlorophyll content of S. platensis. A completely randomized design (CRD) was used and the treatments were A (3 mL/L), B (5 mL/L) and C (7 mL/L), D (negative control without liquid fertilizer) and E (positive control, addition of 1 ml/L Walne fertilizer). The measurement results showed that the water quality during the study was in good condition, the water temperature ranged from 28-29 C, pH (7-8) and salinity (25 - 26 ppt). The highest population density level of S. platensis (321,500 cells/mL) was recorded in treatment B. Then followed by treatment D (270,600 cells/mL), treatment C (260,000 cells/mL), treatment A (220,000 cells/mL) and treatment E (150,000 cells/mL). The highest chlorophyll content was found in treatment C of 0.362 g/L, treatment D (0.302 g/L), treatment A (0.182 g/L), treatment B (0.250 g/L), and treatment E (0.072 g/L).
Endangered Shark Species Identified in Bintan Island Waters, Riau Island Province, Indonesia Mutia Dhiya Amani; Rika Permata Sari; Irwan Effendi
Tropical Marine Enviromental Sciences Vol. 1 No. 1 (2022)
Publisher : Department of Marine Science, Faculty of Fisheries and Marine Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/tromes.1.1.8-17

Abstract

Shark is one of the fish caught and traded around Bintan Island, Indonesia. There are at least 13 species of shark and of which there are 3 species that are already in endangered status. This research was conducted from January 2 to June 30 at the Padang Coastal Marine Resources Management Center (PCMRMC), Tanjung Pinang Work Unit. The purpose of this study was to identify the species of deep shark whose population is critically endangered and endangered in the waters around Bintan Island, Riau Island Province, Indonesia. Shark identification is done by observing the shark's physical body in whole or in part. Includes color, fin shape, tooth shape, motif. A number of 3 critically endangered and endangered shark species were identified from Bintan Island waters, namely the scalloped hammerhead (Sphyrna lewini Griffith & Smith, 1834), zebra shark (Stegostoma tigrinum), and sandbar shark (Carcharhinus plumbeus). All of these sharks are still caught, consumed and traded in this area. According to the IUCN, the current population conservation status of them is critically endangered (scalloped hammerhead), and endangered (zebra shark and sandbar shark).
Survival Rate Lemon Fish (Rachycentron canadum) Larvae in Lampung Marine Aquaculture Center Tengku Rany Oktaviany; Suryadi Saputra; Irwan Effendi; Ummi Mardhiah Batubara
Tropical Marine Enviromental Sciences Vol. 1 No. 1 (2022)
Publisher : Department of Marine Science, Faculty of Fisheries and Marine Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/tromes.1.1.18-24

Abstract

Cobia fish (Rachycentron canadum) is one of the marine carnivorous fish that is relatively new and has the potential to be cultuvited. This study aims to determine the effectiveness of larval rearing and nursery cobia fish found in the Center for Marine Aquaculture (BBPBL) Lampung. Held 20 January to 19 February 2021. The mature fish were mated in a 2x2x1 m concrete tank filled with 4,000 L of water. The eggs produced were harvested using an egg collector, counted and hatched in a 0.8x0.6x0.5 m aquarium. After hatching, the larvae were moved into nursery tanks with a density of 5-7 fish/L. Larvae were reared until they were 25 days old and fed naturally with Branchionus sp, Nannochloropsis sp, and artemia. The larvae were then counted, weighed, measured, graded and their growth analyzed. The results of this study showed that not all of these cobia eggs were fertilized by male cobia sperm at the time of spawning. Spawning was carried out on January 16, 2022. Total eggs was 648,000, total fertilized eggs was 480,000 and fertilization rate was 74.04 %. The results of the initial larval count were 75,000, 17,040 were harvested with a survival rate of 22.72%. Water quality (pH, DO, temperature, salinity, nitrite and ammonia) during the research was still normal.
Using Rhizhopora apiculata Extract for Mosquito Larvae Control Soni Sanjaya; Irwan Effendi; Nursyirwani Nursyirwani
Tropical Marine Enviromental Sciences Vol. 1 No. 1 (2022)
Publisher : Department of Marine Science, Faculty of Fisheries and Marine Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/tromes.1.1.25-31

Abstract

Temephos is the most commonly used synthetic larvicide to control vectors of several diseases. Currently in some areas there has been resistance of larvae to temephos, so natural larvicides are needed as an alternative. Rhizophora apiculata contains flavonoid compounds that are respiratory toxins to some larvae. This research was conducted in March - Juny 2022, to determine the inhibitory of mangrove extract against mosquito larvae in brackish water. Samples were collected from the Bakar Bakau Dumai, Riau Indonesia. The experiment was setted in a single factor experimental design. Mangrove leaves are finely ground and kneaded while mixed with water and deposited for 6 minutes and filtered. This extract solution was mixed with brackish water to obtain a test medium of 500 l with a concentration of 6 (a1), 9 (a2) and 12% (a3), positive control or 1 g of abate powder (a4) and negative control or brackish water (a0). A total of 20 mosquito larvae were put into the media and their mortality was observed at 0, 15, 30, 45 and 60 minutes after introduction. The mortality of larvae were then analyzed using probit analysis to obtain LC50 (Lethal Concentration 50) and LT50 (Lethal Time 50) values. R. apiculata extract is toxic to mosquito larvae, where larval death has been seen since 15 minutes and continues until 60 minutes after introduction. At the 60th minute the mortality rate is as follows; a1 (60 %), a2 (80 %), a3 (100 %), a4 (100 %), and a0 a1 ( %). Based on the results of the above probit values ​​in the LC50 and LT50 tests on R. apiculata leaves, the LC50 value is 9,732 while the LT50 value is estimated at 21,217
Co-Authors abmi, cyndy Afrizal Tanjung Afrizani, Syafrinaldi Ahmed Al-Harbi Akbar, Sidiq Malik Andesca, Yofi Devara Andika Rismayanti Hadi ANDIKA SAPUTRA Anwar, Sagita Aqil Fikar Rivai Aras Mulyadi Arrafiqur Rahman Batubara, Ummi Mardhiah Bintal Amin Cahyani Fitrah Tanjung Christine M Situmeang Claudia, Kristiwany Mayneke Daulay, Anita Diah Permata Sari Dessy Yoswaty Dessy Yoswaty Dessy Yoswaty Desy Mutia Sari Dewan Pratama Novian Dimas Gusriansyah Dimas Gusriansyah Eddiwan Kamaruddin Efriyeldi, Efriyeldi Elizal Elizal Elizal, Elizal Emilda Firdaus Eriani, Eti Evi Deliana HZ Eza Buana Fatwa Eza Buana Fatwa Fahmi, Adzra Ariesta Farma, Elmi Aulia Fathoni, Ahmad Yusron Feliatra Feliatra, Feli Fiki Harjuni firda laily mufid Ghifari, Muhammad Fadil Gusriansyah, Dimas Halima, Asyatul Hanafi Hussin Hanies Ambarsari Hanryani, Putri Henni Syawal Henny Syawal Henny Syawal HERI SYAHFITRI Ida Ayu Eka Putri Yuliandari Ilham Ilahi Indra Lesmana Indra Suharman Irvina Nurachmi Irvina Nurrachmi Ita Widowati Joko Samiaji Judita Grace Merry Nainggolan Jusup Suprijanto Lubis, Nur Aisyah Lufita Nur Alfiah M. Yusuf Mardalisa, Mardalisa MARTONO MARTONO Masdini, Alvira Masjudi, Heri May Juna Tanjung Mega Novia Putri Mega Novia Putri Mega Novia Putri Mochammad Sukedi Moritania, Rizky Muhammad Aliv Kusuma Putra Muhammad Aliv Kusuma Putra Muhammad Arief Wibowo Muhammad Hafizh Muhammad Razali Muhammad Rizal Razman Muhson, Nanang Mukti, Pranata Rangga Mutia Dhiya Amani Mutia Dhiya Amani Mutiara Naimi Nasution Nasution, Nisfi Maulidia Nicholas Renaldo Ningsih, Irma Ardila Nisfi Maulidia Nasution Nuraini Nuraini Nursyafni Nanggola Nursyirwani Nursyirwani Nursyirwani Nursyirwani Nursyirwani, Nursyirwani Nyoto Okta Rizal Karsih Okta Rizal Karsih Parbo, Annisa Presti Povy Hutabarat Pulungan, Amar Doli Purba, Thadeus Mariode Triputra Purwantoro - Putra, Muhammad Hendra Putri, Mega Novia Rady, Rady Rika Permata Sari Rika Permata Sari Riswan, M Rita Wijaya Rita Wiyati Riza, Subkhan Roiman Pakpahan Ronal Kurniawan Ronal Kurniawan Ruthmawati, Abigael Serly Silviyanti Sibarani, Michael Parluhutan Jupiter Silitonga, Lamtiur Rotua Siti Ardiah Soni Sanjaya Soni Sanjaya Sony Sanjaya Sri Wahyuni Sri Wahyuni Suryadi Saputra Suryadi Saputra Syafruddin Nasution Syahputra, Tomi Syahril Nedi Syaputry Lita Yanti T. Budiardi Tampubolon, Kristanti Tanjung, Cahyani Fitrah Tengku Rany Oktaviany Tengku Rany Oktaviany Thamrin Thamrin Tomi Syahputra Tri Vani Bernadetha Ginting Tubagus Hasanuddin Ulfi Laili Astika Ulfi Laili Astika Usman Muhammad Tang Valentina Dian W. Cahyaningrum Windarti Windarti Windarti Windarti Windarti Windarti Yetti Elfina Yudia Anggun Kirana ZULKIFLI ZULKIFLI Zulkifli Zulkifli