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All Journal Jurnal Teknologi Perikanan dan Kelautan Marine Fisheries: Jurnal Teknologi dan Manajemen Perikanan Laut Jurnal Natur Indonesia Jurnal Perikanan dan Kelautan Berkala Perikanan Terubuk Jurnal Ilmu Lingkungan Jurnal Ilmu Perairan (Aquatic Science) Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Asian Journal of Aquatic Sciences Journal of Coastal and Ocean Sciences Journal of Rural and Urban Community Empowerment Dinamika Lingkungan Indonesia Jurnal Perikanan dan Kelautan Jurnal Perikanan Jurnal Perikanan Terapan Jurnal Natur Indonesia
Joko Samiaji
Universitas Riau
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Energy Environmental Science Immunology & microbiology Library & Information Science Materials Science & Nanotechnology Physics Social Sciences

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TYPE AND ABUNDANCE OF PLANKTONIC DIATOMS IN RANGSANG BARAT WATERSDISTRICT MERANTI ISLAND RIAU PROVINCE Mery Mery; Joko Samiaji; Sofyan Husein 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

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Abstract Planktonic diatoms are plant-based microorganisms that live floating in the  water column, relatively lacking in motion and their presence is influenced by water quality and able to photosynthesize. This research was carried out in May 2018 in the waters of Rangsang Barat Meranti Islands Regency, Riau Province. This study aims to find out the type and abundance of planktonic diatomsin the waters of Rangsang Barat.The method used in this study was the survey method. Planktonic diatom sampling was using plankton net No. 25. The results of this study showed that the type and abundance of planktonic diatoms in Rangsang Barat waters at each station was different. The type most often type found at each station was the species Coscinodiscus sp.and Thalassiosira sp.The most rarely found species wereThalassionema sp. and Synedra sp. The highest abundance of planktonic diatoms was found at station II, in which reaches at 261.57 ind / l while the lowest was at station III with the value 48.61 ind / l. Based on the results of thetest One-Way, the  Anovaabundance of planktonic diatoms showed a significance value of> 0.05 i. e. 0.016, indicating the abundance of planktonic diatoms was significantly different. Keywords: Diatoms, Type, Abundance, Rangsang Barat Waters
ANALYSIS OF MANGROVE HEALTH USINGHEMISPHERICAL PHOTOGRAPHY METHOD IN COASTAL CENTER TAPANULI REGENCY, NORTH SUMATERA PROVINCE Muhammad Isnan Alindra; Joko Samiaji; Aras Mulyadi
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             Hemispherical photography method is one of the new methods used and developed in Indonesia in determining mangrove status. The research was conducted in February-March 2019 in coastal Central Tapanuli Regency, North Sumatra  Province.The purpose of this research was to analyze the status of the health conditions of the mangrove community by knowing the value of density, percentage of cover and important value index based on the categories specified in the Decree of the Minister of Environment No. 201 of 2004 about Standard Criteria and Guidelines for Determining Mangrove Damage.The results of the research showed that environmental ecological conditions supported the existence of mangroves.Morphological identification was obtained as many as 8 species from 3 familiesof mangroves. Based on the standard criteria for mangrove damage (Decree of the Minister of Environment No. 201 of 2004), the percentage of mangrove cover was included in the criteria of being medium to heavy with a value 72,61%-75,64%. The density of mangroves is in the medium to dense category with a range between 1400-1511 trees / ha. The overall condition of the mangrove forest was considered as good and healthy. The analysis of Important Value Index (INP) of each type of mangrove was found in the range of values between 3,25%-100,77%, with the highest index of important species was found in Rhizophora apiculata with a value of 100.77% and the lowest was in Scyphiphora hydrophyllacea with a value of 3,25%. Keywords:Central Tapanuli Regency, Mangrove, hemispherical photography, Percentage cover,Density
STUDY OF MARINE ECOTOURISM POTENTIAL IN BERHALA ISLAND LINGGA REGENCY RIAU ARCHIPELAGO PROVINCE Rahmad Febriyandi; Joko Samiaji; Mubarak '
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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The study was conducted in May-June 2015 in Berhala Island and its surrounding waters. The aim of this study was to know the marine ecotourism potential in Berhala Island as marine ecotourism destination in the future. The method used in this study was a survey method. The data observed consist of exploration results and inventory attractions, respondents of tourist representation and in situ measurement of water quality parameters. Berhala Island had huge potential of marine ecotourism and has a tremendous opportunity to be developed as a marine ecotourism region. It was shown on the suitability of marine ecotourism development, both assessed based on the criteria of supporting tour, SWOT analysis, calculation the value of WTA and WTP to the calculation of potential economic value . The potential economic value of marine tourism in Berhala Island is Rp. 52,159,000 (in the agenda of the annual holiday). This value was sufficient with still lack of facilities in the Berhala Island and potentially will grow if there are a implementation of the construction and development in Berhala Island region in the future.Key Word: Potential, Marine Ecotourism, Berhala Island
COMMUNITY STRUCTURES OF EPIPELIC DIATOM AS A BIOINDICATOR IN CAWAN ISLAND OF INDRAGIRI RIVER’S ESTUARY OF INDRAGIRI HILIR REGENCY, RIAU PROVINCE Shofian Nanda Adiprayoga; Sofyan Husein Siregar; Joko Samiaji
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

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The study on diatom epipelic has been conducted in Cawan Island coastal waters of Indragiri River’s estuary, Riau Province. The main purpose of this research was to learn the community structures of epipelic diatom and water quality conditions. The method used were consisting of field survey and data gathering from related parties. The epipelic diatom samples were collected by using 5x5 cm2  plots. Diatom samples and water quality analysis were done in Marine Biology Laboratory of Faculty of Fishery and Marine Science. The results showed that community structures of epipelic diatom had intermediate level of contaminant. The 2 indexes, i.e.the diversity index (H’) and the eveness index (E’), were calculated at the values of  2.768 and  0.499, respectively. As for the dominant index (D) the value was at 0.176. Most of the parameters value of water quality (chemical and physics) were in the range of the aquatic organisms life. Statistical analysis showed the abundance of epipelic diatom between station were relatively similar. Keywords: Diatom Epipelic, Estuary, Coast, Cawan Island
Komposisi jenis dan kelimpahan fitoplankton perairan laut riau Dewi Ariana; Joko Samiaji; Syafruddin Nasution
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

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This research was conducted in April 2013 and was located at Riau marine waters. Samples were analyzed in the Biology Laboratory of Marine Science Department of Fisheries and Marine Science Faculty of Riau University. The aim of this study was to observe the phytoplankton communities. This research used survey method. The study found 31 species of phytoplankton, these were 19 species from Bacillariophyceae, 9 species from Dinophyceae, 2 species from Chlorophyceae and 1 species from Cyanophyceae. Phytoplankton was dominated by group of Bacillariophyceae (Diatoms) 61%. The other groups comprising of Dinophyceae 29%, Chlorophyceae (7%), and Cyanophyceae 3%. Phytoplankton abundance varied from 87-593 ind/L, the higest value in station 9 Zone III and the lowest value in station 11 zone III. Whereas the highest value of zone abundance was zone II 443 ind/L and the lowest was zone I 253 ind/L. Phytoplankton community was dominated by the group of diatoms, such as Nitzschia sigma, Thallasiothrix longissima, and Thallasiothrix delicatula.Keywords: Marine Phytoplankton, Bacillariophyceae, Marine of Riau
Study of the Potential of Marine Ecotourism on the Siantan Island of Anambas Regency of Riau Islands Province Hendra Kharisma; Joko Samiaji; Dessy Yoswaty
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
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ABSTRACT This research was conducted in July - August 2018 in the Siantan Island ofAnambas Islands Regency Riau Islands Province.Aim to (1) Know the potential of maritime ecotourism on the island of Siantan, Anambas Islands Regency (2) the strategy of developing maritime ecotourism in the Anambas Islands Regency. The method used in this research was survey method and purposive sampling.Data collected include the selection of respondents, identification of tourist activities and measurement of water quality.The analysis used in this study was an analysis of aspects of supporting marine tourism, tourism suitability analysis, analysis of the economic potential of marine ecotourism, and SWOT analysis.The results of this study indicated that Siantan Island has the potential to be developed as a marine ecotourism area, with the category S1 (Very Appropriate) with tourist suitability index value at station I (87.17%) and II (83.33%).These results indicate that Siantan Island has potential natural resources. The results of the SWOT analysis showed several alternative management strategies that appropriate for the development of marine ecotourism on Siantan Island. The results of the SWOT analysis show several alternative management strategies that  appropriate for the development of marine ecotourism on Siantan Island, the analysis consists of three priorities, namely: 1) Spatial and regional arrangement by establishing a zoning system for marine tourism activities, community activities and management of the coastal environment, 2) Improvement of transportation to tourist sites to make it easier for tourists to come to Siantan Island, 3) improvement of facilities and infrastructure for marine tourism activities.Keywords: Marine Ecotourism, RegionalPotentiaL, Siantan Island
BIOMASS AND DENSITY OF SEAGRASS Thalassia hemprichii FROM NIRWANA BEACH WEST SUMATRA Ayu Agustina; Zulkifli '; Joko Samiaji
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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Research has been conducted in the month of October-November 2015 at Nirwana Beach of West Sumatra. The aim of this study was to determine the density and biomass and habitat characteristics determine the effect of the density and biomass of seagrass Thalassia hemprichii in waters Nirwana Beach West Sumatra. Results showed the highest density of seagrass Thalassia hemprichii at Nirwana Beach West Sumatra was located on the second station in the amount of 193.98 stands/m2 and lowest density was found on the third station at 99.99 stands/m2 . Thalassia hemprichii biomass was highest at station II transect 1 with a dry weight of 13.452 g/m2 , the lowest of seagrass biomass was at transect III station 3 with a dry weight of 7.512 g/m2 .Keywords : Thalassia hemprichii , density and biomass, Nirwana Beach.
Jenis dan kelimpahan ikan tembakul di pantai dumai provinsi riau Reny Cristina Naibaho; Joko Samiaji; Efriyeldi '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
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The study to observe the species composition and abundance on mudskipper fish was conducted in July 2013 in Dumai coastal waters of Riau Province, Indonesia. They study was carried out in providing the lack information on the biological aspects of the mudskipper from Indonesian seas in general, and of the riau’s coasts in particular. They study used a survey method by selecting 3 different stations as the sampling sites. Fish sampels were collected during the low tide. The quadrant were used in the field in facilitating the survey in fish abudance, whilst the identification was commenced in the Laboratory of Marine Biology of University of Riau. The resuld showed that a number of three species of the mudskipper were sucessfully recorded, i.e. Periopthalmodon schlosseri, Periopthalmus variabilis (Eggert) and Baleopthalmus boddarti (Pall). In terms of abudance, the highest, 0,1733 individuals/m2 was recorded in station I and the lowest 0,0867 individuals/m2, was found in stations III. Based on the diversity index (H’), it was reported that the Dumai coast had moderate diversity of the mudskipper. None of the fish was dominating the population since the dominance index (C) was very close to null from each station. It can be concluded that the habitats of mudskipper in Dumai coasts were in the state of unstable due to its E value in which also close to one.   Keywords : Mudskipper, species composition, abudance, Riau
INTERCORELATION OF TURBIDTY WITH PRIMARY PRODUCTIVITY AND NUTRIENT IN THE WATER EAST SUNGAITOHOR OF SUB-DISTRICT OF EAST TEBINGTINGGI, DISTRICT OF KEPULAUAN MERANTI, PROVINCE OF RIAU Saul Heryanto H.N; Joko Samiaji; Musrifin Ghalib
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

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The objective of the research is to find out water quality condition in most coastal water in East Sungaitohor especially turbidity and its effect toward water primary productivity and its nutrient. This research has been conducted in Sungaitohor waters, district of Kepulauan Meranti. The methods used is purposive sampling. Sampling has been conducted on March 4th, 2017 and nitrate, phospate analysis and turbidity conducted in Marine Chemistry Laboratory and phytoplankton identification has been conducted in Marine Biology in March 10th, 2017. The result shows that the range of turbidity in the waters around 32,07-190 NTU, nitrate consentration is about 2,325-2,4291 mg/L and phospate consentration around -0,5 – 5 mgC/m2/day. Corelation between turbidity and primary productivity, phitoplankton, nitrate, and phospate respectively shows very weak, moderate, moderate, and weak.Keywords: Turbidity, Primary Productivity, Nutrient, Phytoplankton
MARINE ECOTOURISM DEVELOPMENT STUDIES SITIRIS-leak BEACH CENTRAL DISTRICT OF NORTH SUMATRA PROVINCE TAPANULI Algino Panuntun Akbar; Dessy Yoswaty; Joko Samiaji
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 1 (2020): Edisi 1 Januari - Juni 2020
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ABSTRACTThis research was conducted in November 2019 in Sitiris-tiris Coast of Central Tapanuli, North Sumatra. This study aims to determine the potential for marine ecotourism in Province and development strategy. The method used in this study was a survey method to collect qualitative and quantitative data such as interviews, questionnaires and measurement data at the study site. The research location has 3 stations, the first station was in place adjacent to Coral Island, station 2 was located close to tourist attractions and the station 3 located in coastal areas adjacent to the pier. The environmental parameters measured were temperature, brightness, salinity, pH and current velocity.Sitiris-tiris Coast had potential and a tremendous prospect to be developed as an area of marine ecotourism. The natural beauty of the pristine and natural beach make great chance to make Sitiris-tiris Coast as marine ecotourism region. Suitability index based travel, suitability value for tourism activities Sitiris-tiris Coast included in the category of very suitable (S1), with values ranging between 78.57-90.47% and the average value of 84.52%. The value was supporting to undertake the development of ecotourism in Sitiris-tiris Coast. Keywords: Sitiris-tiris Beach, Development, Marine Ecotourism 
Co-Authors ', Marini Abd. Rasyid Syamsuri Afrizal Tanjung Ahmad Saripuddin Akbar, Aidil Rahmad Algino Panuntun Akbar Andi Febrian, Andi Anggi Irfan Hasibuan Anne Rumondang Aras Mulyadi Ardi Gunawan Siregar Aslim Rasyad Asmika Harnalin Simarmata Ayu Agustina Banjarnahor, Novia Bethanya, Ela Nanda Bintal Amin Chaniago, Rizki Dalimunthe, Salmi Patima Desmarina, Y. Despela, Despela Dessy Yoswaty Dewi Ariana Dodi Tri Putra Sitompul Efriyeldi, Efriyeldi Elfis Suanto Elizal, Elizal Enjelina Maria Magdalena Manurung Enny Herawaty Simamora Erwan Efendi Fani Fadli Femi Riza Fitria Wahyuni Fitriansah, Heru Fuady, Muhammad Ikhram Fuady Ikhram Fuah, Ricky Winrison Ghina Salsabila Ginting, T.B. Hafli, R. Diddin Mifdhol Hari Mulyadi, Hari Hasibuan, Ari Permel Hendra Kharisma Huda, Mhd. Aidil Huda, Muhammad Aidil Hutabarat, Muharriswan Ikhsan, Miftahul Ilham Ilham Ilman, Muhammad Khairi Imron Imron Irvan Dwi Putra Irvina Nurachmi Irwan Effendi Kurnia, Fadly Agra Lase, Wanda Fernanda Maizaldi, Maizaldi Manalu, Lili Yanti Manurung, Enjelina Maria Magdalena Marpaung, Bertaulina Mei Fita Asri Untari Merry Sintya Dewi Mery Mery Mhd Aidil Huda Mifdhol Hafli, Raja Diddin Mubarak ' Muhammad Alam Mulia Hasibuan Muhammad Isnan Alindra Muhammad Razali Muhammad Sabirin Muhammad Wahyu Hasibuan Musrifin Galib Musrifin Ghalib Nababan, Bastian Vepry Odynata NANDA PRATAMA Nasution, Muhammad Rasid Nora Sartika Pohan Nur Azizah Nursamsi Nursamsi Nursyirwani, Nursyirwani Panggabean, Iis Panggabean, Iis Apriati Paniska, Almaarif Putra ' Putra, Jefri Eliyas R. Diddin Mifdhol Hafli Rahayu, Rosi Rahim, Mustafa Rahmad Febriyandi Rahmita, R. Raja Siagian Ramadhan, A.R Ramadhan, A.R. Reny Cristina Naibaho Rifardi Rizki, A. Rumondang, Anne Ruth Natalia. S Sabirin, Muhammad Said Nazman Arif Salsabila, Ghina Sari, D.J. Saul Heryanto H.N Shofian Nanda Adiprayoga Sihaloho, Indra Y P Simamora, Enny Herawati Sinaga, Merisa Debora Sinaga, Nella Asima Br. Sitompul, Dodi Tri Putra Sitompul, Krivide Sitorus, Kornelius K Sofyan H. Siregar Sofyan Husein Siregar Sri Ratna Hidayati Sunarti ' Syafruddin Nasution Tatanagara, Muhammad Ilham Thamrin Thamrin Thamrin Thamrin Wahid Wahid Wahyudi Wahyudi Windarti Windarti Windarti Windarti Yanasari, Nurry Yanti, D.H. Yuke Constina Zientika, Zientika Zulkifli ' Zulkifli Zulkifli Zulkifli Zulkifli