Henky Irawan

RESEARCH, TEACHING, or OTHER INTERESTS

Agricultural and Biological Sciences, Aquatic Science, Biotechnology

Scopus Publications

• Integrating Knowledge Management and Green HRD: A Framework for Fostering Green Behavior among Gen Z in Coastal Conservation
  Mirza Ayunda Pratiwi, Henky Irawan, Nola Ritha, Dony Apdillah, Myrna Sofia
  Iop Conference Series Earth and Environmental Science, 2025
  This study explores the role of Knowledge Management (KM) in supporting coastal conservation through local youth empowerment in the Riau Islands, Indonesia, where 98% of the territory consists of marine areas. While coastal conservation has traditionally focused on ecological and biological aspects, this research emphasizes its human dimension by framing conservation as both an ecological practice and an informal learning process. The main objective of this study is to document and analyze the process and flow of Knowledge Management applied in coastal conservation activities, particularly those involving Generation Z (GenZ) who are engaged in conservation efforts. Using an exploratory qualitative approach, data were collected through focus group discussions with experts and GenZ participants involved in conservation programs, semi-structured interviews with conservation academics, NGOs, and practitioners, field observations, and document analysis. The data were thematically analyzed using NVivo software. The findings reveal that the KM process operates through five interrelated stages: capture (digital documentation of field experiences), sharing (exchange of insights through workshops and social media), application (implementation of eco innovation practices), retention (archiving of knowledge and mentoring of new volunteers), and evaluation (assessment of ecological and learning outcomes). Through KM, conservation activities extend beyond planting and monitoring to systematically transforming tacit knowledge into explicit, shareable forms, thereby increasing their long-term impact on environmental sustainability. Moreover, active youth participants serve as change agents who inspire wider community awareness and foster pro-environmental behavior. The adoption KM processes in their conservation programs, they can achieve greater effectiveness, continuity, and overall success in sustaining coastal ecosystems.
• Deep Object Detection Approaches for Identification of Seagrass Species Using Faster R-CNN and Single Shot MultiBox Detector (SSD)
  Nola Ritha, Nurul Hayaty, Dony Apdillah, Henky Irawan, Sahra Fatimah Yasir, et al.
  Iop Conference Series Earth and Environmental Science, 2025
  Seagrass meadows play vital ecological roles by supporting biodiversity, stabilizing sediments, and maintaining coastal productivity. However, species-level monitoring in tropical waters remains difficult due to high turbidity, uneven illumination, and overlapping morphology that hinder visual identification. Traditional field surveys are time-consuming and inconsistent, underscoring the need for automated and scalable approaches. Deep learning–based object detection offers promising solutions but remains underexplored in tropical seagrass ecosystems. This study employs Faster R-CNN and Single Shot MultiBox Detector (SSD) on a unique in-situ underwater dataset from the Riau Islands, Indonesia, to establish baseline detection performance under real environmental conditions. A total of 1,480 images were enhanced using CLAHE, LAB color correction, and sharpening, then divided into training and validation sets. Model performance was assessed using mAP at IoU thresholds 0.50 and 0.75, precision, recall, and inference time. Faster R-CNN achieved higher mAP (38.69%) than SSD (31.35%) but required longer processing. These findings highlight trade-offs between accuracy and speed and form the first baseline for automated seagrass detection in Indonesia.
• Fission technique on sea cucumbers (Holothuroidea): An alternative method for seed production
  Muzahar Muzahar, Rika Wulandari, Dwi Septiani Putri, Tri Yulianto, Henky Irawan, et al.
  Bio Web of Conferences, 2024
  This study aimed to determine the successive level of fission technique on several sea cucumbers (Holothuroidea) in littoral zone of Madong Bay, Tanjungpinang. The fission technique was performed by tying the middle part of the sea cucumber’s body using a rubber band. Parameters observed were composed of: (a) the occurrence of autotomy on pre- and post-treatment period, (b) successive rate of fission technique (%), (c) fission duration, (d) survival rate on post-treatment period. All data were analyzed descriptively. The results showed that: (1) Only gold sea cucumber Stichopus chloronotus that could perform autotomy on post- treatment period, (2) The successive rate of fission technique on Stichopus chloronotus and Holothuria atra was 83.33% and 33.33%, respectively, while fission was absent on Holothuria scabra and Holothuria sp. (0%), (3) The fastest fission process was found on Stichopus chloronotus at 1.2 hours, after applying the fission technique at 24±2 hours and Holothuria atra was at 24-48 hours, (4) The survival rate on post-treatment period was 66.67% in Stichopus chloronotus and 41.67% in Holothuria atra, while Holothuria scabra was 66.67% and Holothuria sp. was 11.11%. Fission technique is more suitable for Stichopus chloronotus as an alternative method for seed supply in grow-out culture activities.
• Evaluation of Nutritional Content of Fermented Fish Visceral Silage using Sorbic Acid and Effective Microorganism (EM4)
  Dwi Septiani Putri, Shavika Miranti, Rika Wulandari, Muzahar Muzahar, Tri Yulianto, et al.
  Bio Web of Conferences, 2024
  Fish silage is a liquid product produced from whole or part of a fish processed by fermentation utilizing the activity of enzymes produced by microba. The fermentation process can be carried out chemically or biological. The purpose of this research is to determine the nutritional content of fish silage fermented using Sorbic Acid and EM4. This research uses an experimental method by mixing cleaned fish with 3% Sorbic Acid and 20% EM4. The highest protein content is found in fish silage fermented with Sorbic Acid, that is 55.05% followed by fat and carbohydrate content of 22.01% and 19.61%. Meanwhile the protein content of fish silage fermented with EM4 is 26.55%. Research results show that fish silage fermented with Sorbic Acid has the best performance by increasing the protein content of the silage.
• Utilization of Moringa Leaf Extract (Moringa Oleifera) against the Ectoparasite Zeylanicobdella sp. on Grouper Fish In In-Vitro
  Raihan Syahrul Maurid, Rika Wulandari, Shavika Miranti, Dwi Septiani Putri, Muzahar Muzahar, et al.
  Bio Web of Conferences, 2024
  Grouper is a mainstay commodity for mariculture in Indonesia. One of the obstacles in cultivating grouper fish in floating net cages is the infection of the hirudinea sea leech Zeylanicobdella sp. Leech infection causes fish growth to be stunted and they may not even be sold. The aim of this research is to determine the effect of adding moringa leaf extract (Moringa oleifera) and its effective dose which can kill sea leeches. This research was carried out in November – December 2023 for 30 days located at the Pengujan Fish Seed Center (BBI), Bintan Regency, Riau Islands Province. This research includes making extracts using 96% ethanol solvent, qualitatively testing the active content of simplicia, probit analysis of extracts on Artemia salina test animals and testing extracts on the leech Zeylanicobdella sp. The graded extract doses used for the LC-50 test on Artemia salina are 20 ppm, 40 ppm and 60 ppm. Meanwhile, the dose for testing on the leech Zeylanicobdella sp. namely 10 ppm, 20 ppm and 30 ppm. Determination of dosage for leeches is based on the LC50-24 value. The research results showed that the percentage of water content was 81,73% and the total yield was 9.25%. The results of the phytochemical test showed that 96% ethanol was successful in attracting bioactive compounds such as alkaloids, flavonoids, saponins and tannins. The LC50-24 hour value shows that the dose of Moringa leaf extract that can cause 50% death of test animals is 30,549 ppm and the best dose that can kill Zeylanicobdella sp. leeches namely a concentration of 30,549 ppm.
• Encapsulation of Ethanol Extract Perepat Leaves (Sonneratia alba) Leaves with Maltodextrin Coating as an Antioxidant Functional Food Candidate
  Heriyanti Heriyanti, Yunika Eka Putri, Hengky Irawan, Tengku Said Raza'i, Indra Lasmana Tarigan, et al.
  Indonesian Food Science and Technology Journal, 2024
  — Perepat (Sonneratia alba) is a plant widely reported to have potential as a natural medicine. Encapsulation technology was developed to prevent damage to bioactive compounds in medicinal plant extracts. This study aimed to analyze the physical and chemical properties of ethanol extract of ( S. alba ) leaves and encapsulants of ethanol extract of perepat leaves with maltodextrin coating material as an antioxidant supplement and analyze the encapsule bioavailability. Characterization was carried out using the Fourier Transform Infrared Spectroscopy (FT-IR) method and UV-Vis Spectrophotometer. The results showed that the highest percentage of extract and encapsulation yield was PKL 39.812% and 59.54% respectively. The highest total phenol and flavonoid content of S. alba leaf ethanol extract was PKL at 171.88 mgGAE/g and 25.473 mgQE/g, respectively, with the highest antioxidant activity of ethanol extract PKL IC 50 3.544 μg/mL. In addition, the solubility level of encapsulated S. alba leaf ethanol extract in water was the highest PKL at 97.950%. The highest total phenol and flavonoid encapsulation was PKL 44.63 (mgGAE/g) and 6.357 (mgQE/g) respectively, with an antioxidant value of IC 50 54.608 μg/mL. Furthermore, the IR spectrum also shows the presence of typical functional groups such as C-H Alkane, C-H Alkene functional group, C-H aromatic ring functional group, O-H functional group, hydrogen bond alcohol/phenol, C=C alkene C=O Carbonyl, single C-OH/C-OR and others confirm the formation of cross-linking in the encapsulation process. This research has shown that the encapsulation of ethanol extract alba leaves had good potential for a functional food candidate.
• Application of Rosmery (Rosmarinus officinalis) Solution to Reduce Marine Leeches in "Cantang" Hybrid Grouper (Epinephelus fuscoguttatus x Epinephelus lanceolatus)
  Aminatul Zahra, Okto Rimandi Bakkara, Shavika Miranti, Henky Irawan, Rika Wulandari, et al.
  Bio Web of Conferences, 2023
  One common disease that attacks hybrid grouper is marine leech (Zeylanicobdella sp.). Therefore, it is necessary to take safe and environmentally friendly treatment steps, namely bathing fish infected with marine leeches with rosemary solution. This research examined the application of rosemary solution with different concentrations and bathing times to decrease the intensity of marine leech infections in “cantang” hybrid grouper (Epinephelus fuscoguttatus x Epinephelus lanceolatus). The experimental design of this research was a randomized factorial design (rosemary solution concentration factor and bathing time factor) with three replications. This experimental’s treatments were a combination of rosemary solution concentrations (0, 7.5, and 15 mL/L) and bathing times (20, 40, and 60 minutes). The experiment showed that the interaction of concentration and bathing time of rosemary significantly eliminate the number of leeches in “cantang” hybrid grouper. The rosemary solution at concentrations of 15 mL/L and 7.5 mL/L significantly differed from the control; 15 mL/L was the best concentration for reducing leeches intensity, with an average intensity reduction of 29.91%. The best duration of bathing rosemary to decrease the intensity of leeches in “cantang” hybrid grouper is 60 minutes, with an average reduction in intensity of 19.21%. However, the concentration and duration of bathing in rosemary solution could not decrease the prevalence of leeches in “cantang” hybrid grouper. Bathing grouper fish in rosemary solution at a dose of 15 mL/L for 60 minutes is the best treatment to decrease the intensity of leech attacks on grouper fish by 44.85%. Bathing hybrid grouper with rosemary solution is one solution to decrease the intensity of marine leech attacks on fish farming.
• Hydroponic Rhizophora sp Saplings Significantly Improve Effectiveness and Efficiency of Mangrove Planting
  Henky Irawan, Ery Subhiyanti, Daffa Alfathin Erkyawan
  Bio Web of Conferences, 2023
  This research aims to evaluate the effectiveness and efficiency of planting mangroves Rhizophora sp using hydroponic saplings compared to conventional polybag saplings. The hydroponic method was tested to increase the efficiency of mangrove planting through effective effectiveness that is lighter and easier to carry in large quantities. This research involves planting mangrove seedlings on a field scale using both methods. The results showed that hydroponic saplings had better effectiveness and efficiency performance than polybag saplings. The advantages of hydroponic saplings in terms of portability and the ability to plant in large quantities can be an attractive alternative in conservation and rehabilitation efforts for mangrove ecosystems. The results of this research indicate that the use of hydroponic saplings in planting can increase effectiveness by 4,512-5,869%, where 1 person can carry 294-385 saplings compared to saplings in small size polybags where 1 person can only carry 7 saplings and can achieve efficiency by 2 %, where 1 Ha only requires 7-9 people compared to saplings in large polybags where 382-384 people have to carry them people, which means it can reduce the number of people 98 % that perform significantly improve from polybag saplings.
• Evaluation of Different Culture Methods on The Growth Performance of Seaweed (Kappaphycus striatum) in Pelakak Village Waters Lingga District
  Muzahar Muzahar, Rika Wulandari, Dwi Septiani Putri, Tri Yulianto, Henky Irawan
  Bio Web of Conferences, 2023
  The seaweed culture activities are relatively new and only few people perform them in Lingga District. Specifically, Kappaphycus striatum has recently been cultured for the last three culture periods. This condition causes the seaweed culturists have no appropriate data associated with a proper culture method, following the water characteristics around the culture area. A study regarding the different culture methods on the growth performance of K. striatum in Pelakak Village waters, Lingga District, Riau Islands has never been reported. This study aimed to determine the effect of different culture methods on the growth performance of Kappaphycus striatum seaweed. This study used a completely randomized block design with three treatments and three replications, namely bottom method (P1), off-bottom (P2), and longline method (P3). There were 351 seaweed seeds with 100 g weight per each seed, that are placed in nine culture plots. The culture plot was constructed as a 4 m × 1.5 m square with wooden stakes at both ends and polyethylene ropes installed at a distance of 0.5 m. Each rope stretch was tied at 0.3 m distance for seed planting. Parameters observed in this study were absolute growth rate, specific growth rate, and production rate of the seaweed. The results showed that the absolute growth rate, specific growth rate, and production rate were affected by the culture method (p<0.05). The seaweed group reared in a longline method (P3) obtained the best results, compared to other methods, at 2.34% per day for specific growth rate and 245.7 g/m2 for production rate. Therefore, the longline method can be applied in the Pelakak Village waters, Lingga District.
• Carbon Stock in the Sediment of Mangrove Forest at the Coast of Dompak Island, Riau Islands
  Aurigha Haidar Brabo, Indri Addini, Henky Irawan
  Iop Conference Series Earth and Environmental Science, 2023
  The increase of the organic carbon in the environment that was not followed by carbon adsorbents will trigger climate change that contributes to global warming. The mangrove forest is the ecosystem that can absorb carbon emission from the environment and reserve it in its leaves, stems, and sediment. This research aimed to show the information related to the estimated organic carbon value stored in the mangrove forest’s sediments on Dompak Island. This research was conducted in December 2020 at Dompak Island, Riau Islands. Carbon stock data was evaluated using the LOI (Loss On Ignition) method. The sediment specimens were collected from 5 stations. The result showed that the north station has the highest carbon content, 443.1 tons C/ha, and the south station has the lowest carbon content, 223.65 tons C/ha. The result from the statistic analysis using a one-way ANOVA test between the locations showed that the organic value carbon content in Dompak Island with the significance value of 0.05 stated that there is no real difference.
• Analysis of marine garbage catches in mangrove roots of rhizophora sp in senggarang besar, tanjungpinang, Indonesia
  Sintana Tri Yuniar, Anasha Nugrahaini Virizki, Dilla Sahilla, Jumari, Muhammad Fajri, et al.
  Iop Conference Series Earth and Environmental Science, 2023
• Analysis of marine garbage catches in mangrove roots of rhizopora sp in senggarang besar, tanjungpinang
  Sintana Tri Yuniar, Anasha Nugrahaini Virizki, Dilla Sahilla, Jumari, Muhammad Fajri, et al.
  Iop Conference Series Earth and Environmental Science, 2023
• Floating Cage Stability With Vacuum Balance Unit
  Henky Irawan
  E3s Web of Conferences, 2021
• The effectiveness of the electricity and LPG for the sustainability of Sandfishes Holothuria scabra drying process on small islands
  R Pramana, Akhirman, H Irawan
  Iop Conference Series Earth and Environmental Science, 2021
• Assembled concrete reefs as a stand for coral transplantation on the seabed
  H Irawan, R Yude, M P Suhana, A Suryanti, D Kurniawan, et al.
  Iop Conference Series Earth and Environmental Science, 2019
• Detection of reef scale thermal stress with Aqua and Terra MODIS satellite for coral bleaching phenomena
  R. D. Putra, M. P. Suhana, D. Kurniawn, M. Abrar, R. M. Siringoringo, et al.
  Aip Conference Proceedings, 2019
• Preliminary study of heavy metal (Zn, Pb, Cr, As, Cu, Cd) contaminations on different soil level from post-mining bauxite production for aquaculture
  Risandi Dwirama Putra, Tri Apriadi, Ani Suryanti, Henky Irawan, Tengku Said Raja'I, et al.
  E3s Web of Conferences, 2018
• Responses of herbivorous fishes on coral reef cover in outer island Indonesia (Study Case: Natuna Island)
  Risandi Dwirama Putra, Ani Suryanti, Dedi Kurniawan, Arif Pratomo, Henky Irawan, et al.
  E3s Web of Conferences, 2018
• The effect of extenders, cryoprotectants and cryopreservation methods on common carp (Cyprinus carpio) sperm
  Henky Irawan, Verapong Vuthiphandchai, Subuntith Nimrat
  Animal Reproduction Science, 2010

RECENT SCHOLAR PUBLICATIONS

• Optimasi Tingkat Kelangsungan Hidup Ikan Ikan Kerapu Cantang Epinephelus fuscoguttatus>< Epinephelus lanceolatus Dengan Penambahan Ekstrak Daun Jambu Biji Merah Psidium guajava …
  IP Maidah, H Irawan, OR Bakkara
  Jurnal Intek Akuakultur 8 (1), 31-45 , 2026
  2026
• Efektivitas Sumber Nitrogen pada Pupuk Organik yang Berbeda sebagai Substitusi Urea pada Nutrien Kultur Nannochloropsis Sp.
  PB SINURAT, H Irawan, DS Putri
  Jurnal Intek Akuakultur 8 (1), 22-30 , 2026
  2026
• EKOLOGI PESISIR DAN PULAU-PULAU KECIL DINAMIKA, DEGRADASI, DAN RESTORASI
  IA Yusanti, F Marasabessy, I Prihatiningsih, A Rahmadhani, H Irawan, ...
  LSO Creative , 2026
  2026
• Efektivitas Pupuk Anorganik Yang Berbeda Untuk Substtusi Urea Sebagai Sumber Nitrogen Pada Nutrien Kultur Nannochloropsis sp.
  M Ilyasya, H Irawan, D Sinaga
  Jurnal Intek Akuakultur 8 (1), 15-21 , 2026
  2026
• SISTEM KLASIFIKASI SIPUT GONGGONG BERBASIS CONVOLUTIONAL NEURAL NETWORK (CNN) VGG16 STUDI KASUS SENGGARANG
  S MUHAMAD, N Nurfalinda, I Henky
  Universitas Maritim Raja Ali Haji , 2026
  2026
• PENGEMBANGAN PROTOTIPE SISTEM INTEGRASI BIOFLOK-HIDROPONIK DALAM PRODUKSI IKAN LELE Clarias sp. DAN CAISIM Barassica chinensis var. Parachunensis YANG BERKELANJUTAN
  EY AMBARITA, H Irawan, AD Syakti
  Universitas Maritim Raja Ali Haji , 2026
  2026
• Budidaya Biota Laut Ekonomis Penting: Dinamika Budidaya dan Potensi Bioaktif
  R Wulandari, OR Bakkara, S Miranti, DS Putri, H Irawan, T Yulianto
  Deepublish , 2026
  2026
• Integrating Knowledge Management and Green HRD: A Framework for Fostering Green Behavior among Gen Z in Coastal Conservation
  MA Pratiwi, H Irawan, N Ritha, D Apdillah, M Sofia
  IOP Conference Series: Earth and Environmental Science 1559 (1), 012051 , 2025
  2025
• Deep Object Detection Approaches for Identification of Seagrass Species Using Faster R-CNN and Single Shot MultiBox Detector (SSD)
  N Ritha, N Hayaty, D Apdillah, H Irawan, SF Yasir, SI Maharani
  IOP Conference Series: Earth and Environmental Science 1559 (1), 012012 , 2025
  2025
  Citations: 1
• Comparative growth performance of Kappaphycus striatus and the green variety of Kappaphycus alvarezii under longline cultivation
  M Muzahar, TS Raza, L Viruly, R Wulandari, S Miranti, DS Putri, ...
  Acta Aquatica: Aquatic Sciences Journal, 278-283 , 2025
  2025
• Implementation of IoT-based water quality monitoring instruments in cantang grouper cultivation ponds
  HA Kusuma, MH sidqi Alajuri, A Anggarudin, DED Setyono, H Irawan
  Computer Science and Information Technologies 6 (3), 235-244 , 2025
  2025
• EFEKTIVITAS PUPUK ORGANIK YANG BERBEDA UNTUK SUBSTITUSI UREA SEBAGAI SUMBER NITROGEN PADA NUTRIEN KULTUR Nannochloropsis sp.
  PB SINURAT, H Irawan, DS Putri
  Universitas Maritim Raja Ali Haji , 2025
  2025
• OPTIMASI TINGKAT KELANGSUNGAN HIDUP IKAN KERAPU CANTANG EPINEPHELUS FUSCOGUTTATUS>< EPINEPHELUS LANCEOLATUS DENGAN PENAMBAHAN EKSTRAK DAUN JAMBU BIJI MERAH PSIDIUM GUAJAVA LINN …
  I PARAH MAIDAH, H Irawan, O Rimandi Bakkara
  Universitas Maritim Raja Ali Haji , 2025
  2025
• INTRODUKSI PRODUKSI BENIH MELALUI TEKNIK FISI PADA KELOMPOK PEMBUDIDAYA TERIPANG (Stichopus sp.) DI KAMPUNG MADONG, KELURAHAN KAMPUNG BUGIS, KOTA TANJUNGPINANG
  M Muzahar, OR Bakkara, DS Putri, S Miranti, R Wulandari, T Yulianto, ...
  Jurnal Abdi Insani 12 (9), 4226-4239 , 2025
  2025
• Growth of Kappaphycus alvarezii seaweed in off-bottom technique with different number of cultivation facilities
  A Aripin, M Muzahar, H Irawan
  Acta Aquatica: Aquatic Sciences Journal, 197-201 , 2025
  2025
• Pemberdayaan Kelompok Pembudidaya Ikan Melalui Pelatihan Pembuatan Pakan Berbasis Bahan Baku Lokal
  DS Putri, S Miranti, R Wulandari, OR Bakkara, M Muzahar, T Yulianto, ...
  Jurnal Abmas Negeri (JAGRI) 5 (2), 461-468 , 2024
  2024
  Citations: 2
• PELATIHAN TEKNOLOGI PEMANTAUAN KUALITAS AIR PADA KOLAM PENDEDERAN IKAN CANTANG DI HATCHERY D-MARINE AQUACULTURE KOTA TANJUNGPINANG, KEPULAUAN RIAU
  HA Kusuma, A Reni, J Margaretha, A Anggarudin, H Irawan
  Jurnal Hilirisasi IPTEKS 7 (3), 335-346 , 2024
  2024
• PEMBESARAN TERIPANG PASIR (Holothuria scabra) PADA WADAH KONTAINER PLASTIK DENGAN PEMBERIAN PAKAN YANG BERBEDA
  MA RIANSYAH, DS Putri, H Irawan
  Universitas Maritim Raja Ali Haji , 2024
  2024
• Laju pertumbuhan calon bibit rumput laut Kappaphycus alvarezii dengan pemberian pupuk yang berbeda
  A Hutabarat, H Irawan, DS Putri
  Universitas Maritim Raja Ali Haji , 2024
  2024
  Citations: 2
• PENGARUH PEMBERIAN ECO-ENZYME TERHADAP KUALITAS AIR DAN KELANGSUNGAN HIDUP BENIH IKAN KERAPU CANTANG Epinephelus fuscoguttatus>< Epinephelus lanceolatus
  W WINDAH, H Irawan, D Septiani Putri
  Universitas Maritim Raja Ali Haji , 2024
  2024

MOST CITED SCHOLAR PUBLICATIONS

• The effect of extenders, cryoprotectants and cryopreservation methods on common carp (Cyprinus carpio) sperm
  H Irawan, V Vuthiphandchai, S Nimrat
  Animal Reproduction Science 122 (3-4), 236-243 , 2010
  2010
  Citations: 200
• Ekstraksi Senyawa Metabolit Sekunder Lamun Thalassodendron Ciliatum Pada Pelarut Berbeda
  A Fajarullah, H Irawan, A Pratomo
  Repository Umrah 1 (1), 1-15 , 2014
  2014
  Citations: 141
• Tingkat tutupan ekosistem terumbu karang di perairan Pulau Terkulai
  S Rizal, A Pratomo, H Irawan
  Repository Umrah , 2016
  2016
  Citations: 115
• Keanekaragaman Gastropoda pada Ekosistem Mangrove Pantai Masiran Kabupaten Bintan
  H Irawan
  Repository Umrah , 2016
  2016
  Citations: 111
• Ekstraksi senyawa metabolit sekunder yang terdapat pada daun mangrove Xylocarpus granatum dengan pelarut yang berbeda
  Y Prabowo, H Irawan, A Pratomo
  Repository UMRAH , 2014
  2014
  Citations: 106
• Studi Identifikasi Siput Gonggong di Zona Litoral Pesisir Timur Pulau Bintan
  H Irawan
  Dinamika Maritim 5 (1), 38-45 , 2015
  2015
  Citations: 104
• Hubungan Antara Bulu Babi, Makroalgae Dan Karang Di Perairan Daerah Pulau Pucung
  I Miala, A Pratomo, H Irawan
  Repository Umrah 5 , 2015
  2015
  Citations: 104
• Hubungan Jenis Substrat Dengan Kerapatan Vegetasi Rhizophora Sp. Di Hutan Mangrove Sungai Nyirih Kecamatan Tanjungpinang Kota Kota Tanjungpinang Dwi
  DN Amin, H Irawan, A Zulfikar
  Repository Umrah 1 (1), 1-15 , 2015
  2015
  Citations: 104
• Keanekaragaman Gastropoda di Perairan Litoral Pulau Pengujan Kabupaten Bintan
  DS Putra, H Irawan, A Zulfikar
  Repository Umrah , 2015
  2015
  Citations: 104
• Laju pertumbuhan jenis lamun Enhalus acoroides dengan teknik transplantasi polybag dan Sprig Anchor pada jumlah tunas yang berbeda dalam rimpang di perairan Bintan
  N Harnianti, I Karlina, H Irawan
  Jurnal Intek Akuakultur 1 (1), 15-26 , 2017
  2017
  Citations: 101
• Aplikasi SIG untuk pemetaan kesesuaian kawasan budididaya ikan kerapu menggunakan keramba di perairan laut Desa Genting Pulur Kabupaten Kepulauan Anambas
  Rofizar, YV Jaya, H Irawan
  Repository UMRAH , 2017
  2017
  Citations: 100
• Laju Pertumbuhan Jenis Lamun (Syringodium Isoetifolium) Dengan Teknik Transplantasi Polybag Dan Sprig Anchor Pada Jumlah Tegakan Yang Berbeda Dalam Rimpang Di Perairan Kampe …
  A Permatasari, I Karlina, H Irawan
  Jurnal Intek Akuakultur 1 (1), 1-14 , 2017
  2017
  Citations: 99
• Laju pertumbuhan jenis lamun Thalassia hemprichii dengan teknik transplantasi sprig anchor dan polybag pada jumlah tegakan yang berbeda dalam rimpang di Perairan Kabupaten Bintan
  R Seprianti, I Karlina, H Irawan
  Jurnal Intek Akuakultur 1 (1), 56-70 , 2017
  2017
  Citations: 97
• Keanekaragaman Gastropoda Di Padang Lamun Perairan Kelurahan Senggarang Kota Tanjungpinang Provinsi Kepulauan Riau
  M Nurjannah, H Irawan
  Repository UMRAH, 1-9 , 2013
  2013
  Citations: 97
• KEANEKARAGAMAN GASTROPODA PADA EKOSISTEM MANGROVE DAN LAMUN PULAU DOMPAK KOTA TANJUNGPINANG.” Repository UMRAH
  D Zulheri, H Irawan
  Repository UMRAH , 2014
  2014
  Citations: 96
• Aplikasi SIG Untuk Kesesuaian Kawasan Budidaya Teripang Holothuria Scabra Dengan Metode Penculture Di Pulau Mantang, Kecamatan Mantang, Kabupaten Bintan
  D Marizal, YV Jaya, H Irawan
  Repository UMRAH, 1-8 , 2012
  2012
  Citations: 96
• Aplikasi SIG Untuk Kesesuaian Kawasan Budidaya Rumput Laut Eucheuma Cottonii Dengan Metode Lepas Dasar Di Pulau Mantang, Kecamatan Mantang, Kabupaten Bintan
  M Hambali, YV Jaya, H Irawan
  Repository UMRAH , 2012
  2012
  Citations: 96
• STRUKTUR KOMUNITAS SIPUT LAUT GONGGONG DI PERAIRAN PULAU TERKULAI KELURAHAN SENGGARANG KECAMATAN TANJUNGPINANG KOTA, KOTA TANJUNGPINANG PROVINSI KEPULAUAN RIAU
  TD Kurniawan, F Lestari, H Irawan
  Repository UMRAH , 2016
  2016
  Citations: 94
• Studi Biologi dan Ekologi Hewan Filum Crustacea di Zona Litoral Pesisir Timur Pulau Bintan
  H Irawan
  Dinamika Maritim 5 (2), 37-48 , 2015
  2015
  Citations: 94
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