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ANALYSIS OF MANGROVE BIOMASS IN THE ECO – TOURISM AREA OF MANGROVE ECOSYSTEM IN SUNGAITOHOR VILLAGE OF RIAU PROVINCE Antonius '; Dessy Yoswaty; Aras Mulyadi
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 research was conducted in December 2016-January 2017 in the mangrove ecosystem of Sungaitohor Village, Riau Province. The objective of this research was to analyze the biomass potential of mangrove ecosystem, to know the difference betwen above ground biomass potential (Above Ground Biomass, AGB) and underground biomass (Below Ground Biomass, BGB). Of the ANOVA test results on the levene test count has a value of 5.822 with a probability value of 0.009 (<0.05) then the three variants of the population are identical so that the biomass content of Station 1. Station 2 and Station 3 is not significantly different, the results showed that in the t-independent test results showed no significant differences in the potential value of AGB and BGB. Based on the ANOVA test the finding shawed no significant difference to total biomass at each station in Sungaitohor Village, Meranti Islands District.Keyword : Mangrove, Biomass, Sungaitohor, Meranti
ABUDANCE AND DISTRIBUSION PATTERN OF GASTROPOD AT INTERTIDAL ZONE KALANGAN COAST TAPANULI TENGAH SUMATERA UTARA PROVINCE Judika Nursiani Sipahutar; Efriyeldi Efriyeldi; 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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ABSTRACTCoastal ecosystems are the confluence of land and sea that are still influenced by sea characteristics such as tides, sea breezes and salt intrusion and sedimentation processes.The intertidal zone is part of a coastal ecosystem in which many marine biota live such as the gastropods of the mollusk phylum. The purpose of this study was to determine the type and abundance as well as the distribution pattern of gastropods in the intertidal zone of Kalangan Beach in Central Tapanuli, North Sumatra. This research was conducted in April 2019. From the results of the study it was found that in the intertidal zone of the Kalangan Beach 10 gastropods were found, namely Clypeomorus sp, Littorina sp, Polinices, Clypeomorus bifascita, Nassa francolinus, Morula granulata, Phasianella solida, Clypeomorus batillariaeformis, Cerithiium sp,and Faunus ater. At station I with an abundance of 5 ind / m2 which is relatively low. At station II with an abundance value of 2 ind / m2 classified as very low, and at station III with an abundance value of 43 ind / m2 classified as abundant. The distribution pattern of gastropods in the intertidal zone of Kalangan Beach at each station is clustered. Keywords:gastropods, abundance, distribution pattern 
ANALYSIS OF BIOMASS AND CARBON STOCK ON MANGROVE FOREST ECOSYTEM IN NORTH COASTAL AREA OF RUPAT ISLAND RIAU PROVINCE Muhammad Sofyan; Aras Mulyadi; Elizal &#039;
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

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Analysis of biomass and carbon stock on mangrove forest ecosytem in coastal area of North Rupat Riau Province has been conducted in January 2016. The method used in this study is a survey method with purposive sampling technique. The study showed that the potential mangrove biomass was directly proportional to mangrove carbon stocks. The average yield of biomass, carbon stocks of soil organic carbon and CO2 sequestration on mangrove forest was reserves amounted to 68,64 tons/ha , 904,75 tons/ha and 251,39 tons/ha, while the average yield of total carbon stocks was 973,31 tons/ha.Keyword: Rupat, Mangrove, Biomass, Carbon,
The Growth Rate of Propagul Rhizophora mucronata On the Intensity of tubes Various Shade In the Concong village In Indragiri Hilir Regency Riau Province Hoki kurniawan; Aras Mulyadi; Thamrin &#039;
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 June-July 2013 in the village of Concong In Indragiri Hilir Riau Province. The method used in this research was a randomized block design (RAK) consisting of 5 treatments and 10 replications thus obtained 50 experimental units. This study aimed to determine the rate of growth of propagules R. mucronata good at various intensities shade. The results showed growth of propagules R. mucronata significant effect on height growth, diameter, survival percentage, number of leaves and total biomass. High growth in most large propagules present in 25% shade intensity is 0,23 cm. Greatest diameter growth found in 25% and 75% shade intensity is 0,006 cm. Highest percentage of life, of all the intensity of shade. Leaf shade intensity is highest at 100% ie 1.3. Propagules greatest total biomass present in 50% shade intensity is 1.3 grams.Keywords: Riau, R. mucronata, Growth, Shade intensity
Struktur Komunitas Makrozoobentos di Daerah Padang Lamun Muara Sungai Riau Kota Tanjungpinang Provinsi Kepulauan Riau Ilham Ilahi; Aras Mulyadi; Elizal &#039;
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 June 2013 at Riau River Estuary inTanjungpinang City Riau Islands Province. This research aimed to find out themacrozoobenthos community structure and its relationship to seagrass vegetation.The method on the research was survey method. The existence of macrozoobenthosin this area showed the dynamic symbiosis among seagrass and marine organisms.The results also showed seagrass ecosystem had the high potential to be managed andused by communities and also increasing the fisheries productivity on coastal area.Species composition of macrozoobenthos in the area consisted of 8 species, i.e.Strombus sp, Cerithidea quadrata, Pina bicolor, Anadara sp, Anadara inflata,Atactodea striata, Asteroidea sp and Diadema sitosum. Two species of seagrassvegetation were found in this area, those were Enhalus acoroides, and Halophilaovalis. T-test analysis showed that the average of macrozoobenthos abundance oneach station differed unsignificantly (p>0,05). The regression analysis showed thatrelationship among seagrass vegetation diversity and macrozoobenthos abundancewas at r=0,35.Keywords: Riau River, Macrozoobenthos, Seagrass, Symbiont
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
THE STRUCTURE COMMUNITY OF PLANKTONIC DIATOM WITH NITRATE AND PHOSPHATE CONCENTRATIONS IN SEI UNDAN ESTUARINE SUB DISTRICT OF RETEH DISTRICT OF INDRAGIRI HILIR Lydia S Marpaung; Sofyan Husein Siregar; Aras Mulyadi
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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Research on the structure community of planktonic diatom with nitrate andphosphate concentrations in sei undan estuarine sub district of Reteh district ofIndragiri Hilir was conducted on May 2013. The aims of this study was todetermine the community structure of planktonic diatom which includes index ofdiversity, index of dominan and index of uniformity and was to determine therelationship between the nitrate and phosphate consentration with the abundanceof diatom. Sample were taken at 4 station each station was divided into 3sampling points. The identification result of sampel obtained 7 species of centricdiatoms anda 1 species of pennate diatom. The highest abundance of diatom wasfound in station 2 (7.846,95 ind/L) and the lowest was found in station 4 (2.615,65ind/L). The highest individual abundance was shown by Nitzschia pungens andLeptocylindrus minimus. It was indicated that dominan species in the waters.Based on index of diversity, index of dominan and index of unifornity the areawas categorized as mesotrofic area.Keyword: Sei Undan Estuarine, Diatom, Structure Community, Nitrate & Phosphate
Comparative Morphometric Rhizophora Apiculata Leaf And Fruit In Two Areas With Anthropogenic Activities Different In Pesisir Dumai Barat Kota Dumai ProvinsiRiau David Raymond Sianturi; Efriyeldi Efriyeldi; 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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ABSTRACTMorphometrics is a field that deals with variations and changes in the form (size and shape) of an organism or object. Anthropogenic is a human activity not only limited to the use or utilization of coastal resources, but also can be restorative and protective, thus causing complex disruption. The purpose of this study was to determine the morphometric differences of the leaves and fruits of R. apiculata mangroves in two regions with different anthropogenic activities in the mangrove ecosystem of Dumai City. This research was carried out in May 2019. From the results of the study it was found that in areas polluted by anthropogenic activity the average morphometrics of fruit (length and width) and leaves (length, width and length of the stems) Rhizophora apiculata were lower than those in the area not polluted by anthropogenic activity. At station I the oil content ranged from 1162.11 to 1934.2 ppm classified as polluted and at station II ranged from 672.81 – 1082.30 ppm classified as not polluted. The content of organic matter at station I ranged from 11.03 to 13.73%, which was classified as low, while at station II it ranged from 19.95 to 23.77% which was classified as moderate. Keywords:Dumai, Anthropogenic, Mangrove, Morphometric
ANALYSIS OF LEAD, COPPER AND ZINC CONCENTRATIONS IN FLESH AND SHELL OF SNAIL Litoraria melanostoma IN THE WEST COAST OF KARIMUN BESAR ISLAND OF RIAU ISLANDS Pesta Martua Sirait; Bintal Amin; Aras Mulyadi
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

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The research was conducted in February 2015 to determine the concentration of heavy metals (Pb, Cu and Zn) in the flesh and shell of snail L. melanostoma collected from the west coast of Karimun Besar Island of Riau Islands Province. The differences in metal concentrations between shell and flesh as well as between stations were discussed. Higher concentrations of Pb and Cu were found in the flesh, whilst zinc concentration was found to be higher in the shell of the snail. The highest Pb concentration was found in Station I (8.105 μg/g) and the lowest was in Station III (6.476 μg/g). The highest Cu concentration was found in Station II (5.193 μg/g) and the lowest was in Station III (4.333 μg/g). Meanwhile the highest Zn concentration was found in Station III (7.675 μg/g) and the lowest was in Station II (7.408 μg/g). The MPI value of the metals in the west coast of Karimun Besar Island still quite low when compared with other reported regional studies. Keywords: Lead, Copper, Zinc, snail, shell, flesh, Karimun
DISTRIBUTION OF MACROZOOBENTHOS IN THE MANGROVE FOREST OF MARINE PROTECTED AREAS (MPA) PARIAMAN OF WEST SUMATRA. Victor Simanungkalit; Afrizal Tanjung; Aras Mulyadi
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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The research was conducted on June 2013 in mangrove forest of Marine Protected Areas (MPA), Pariaman city West Sumatra Province. The method of this research was survey method, which primary data were gotten on research area. This study aimed to find out of macrozoobenthos distribution in mangrove forest of Marine Protected Areas (MPA) Pariaman of West Sumatra. Macrozoobenthos sampling was carried out on sub-plot measuring 1m x 1m, which plot measuring 5m x 5m, as many as 5 plot where as sediment samples were taken at each station.Macrozoobenthos species were found in this area, those are Cerithidea anticipata, Neritodryas dubia, Neptunea decemcostata, Ellobium aurisjudae, Littoraria sp, Pitar manillae, Tapes literata, Geloina coaxans and Uca coarctata. Morisita distribution index of macrozoobenthos on three stations around 1.0469 to 1.0252. Morisita distribution index on every station are more than 1 (> 1), it means that distribution characteristic from into groups.Keywords: Pariaman, Macrozoobenthos, Distributi
Co-Authors ', Agusriadi ', Arfitrah ', Zulkifli AA Sudharmawan, AA Adelina Adelina Adhistie Indah Sari Adiwirman Adiwirman Adiwirman Adiwirman, Adiwirman Adni, Nailul Afrizal Tanjung Agnesia, Yohana Agung Dhamar Syakti Agus Mandar, Agus Agusti, Dinda Roanna Albahri Albahri Alfajri Alfajri Alfajri, Alfajri Alfian Alfian Alfian Alfian Alka, M Abdi Almasdi Syahza Amanda, Yossie Aminuyati Anak Agung Istri Sri Wiadnyani Andewi Rokhmawati Andi Darlianto Andi Yusapri Andreas Situmorang Annisa Al-Qhoshashi Antoni Antoni Antonius &#039; Anwar, Sagita Apriyani Apriyani Arief Rachman. B Audilla Pardova Autika, Yotta Ayu Ade Fatma Dewi Sirait Ayu Septiani Ayu Septiani Azmiada, Zela Azriyenni Azhari Zakri Bahruddin Bayu Putra U Irawan Bintal Amin Bintang Rapshodio Tane Budijono, Budijono Burhan Marbun Chitra Hermawan Chitra Hermawan Dandi Arianto Pelly Danil Rama Putra Darmawati Darmawati Daryono Daryono David M Haryanto David M Haryanto David Raymond Sianturi Deden Sutrisco Nopria Dedi Afandi Denny Mulianto Desi Purnamasari Taher Desmarina, Y. Despela, Despela Dessy Yoswaty Dessy Yoswaty Dessy Yoswaty Djaimi Bakce Djaimi Bakce Doni Apdillah Dyah Endah Astuti Nasution Edi Susilo Eff, Irwan Effendi Sianipar Efriyeldi, Efriyeldi Ela Fitriana Elda Nazriati Elfis Suanto Elizal, Elizal Emirhadi Suganda Endro Siswanto Endro Siswoko Eyka Syahputra Fadhil, Mohd. Isfan Fajriani Ananda Fakhri Fakhri Fauzi, Manyuk Fenti Rozanda Feri Handoyo Pardede Feri Handoyo Pardede Fernando, Muhammad Zebi Ferry Fatnanta Fia Novianty Fiki Harjuni Filio Hara, Filio Firzal, Yohannes Fitriani, Nely Fuadi, Indra Ginting, T.B. Gusfi, Melly Hadinoto Hadinoto Harahap, Anugerah Ramadhan Harahap, Anugrah Ramadhan Hardianto Andita Hardiko, Syefri Haryanto, David M Hasan, Masyhuda Hasbi Tawa Hasyim, Ardhan Fadhlani Hendra Taufik Hendro Ekwarso Heriansyah Pasaribu Hoki kurniawan Hutomo, Ragil Tribhakti Iesje Lukistyowati Ikhma Zurani Ikma Zurani Ilham Ilahi Imam Deisy Mustiono Imam Suprayogi Imran , Imran Imran Imran Inka Wahyuni Irvina Nurachmi Irwan Effendi Ismandianto Jadi Prasmadi Jailani Jailani Januardi, Deki Joko Samiaji Joleha, Joleha Judika Nursiani Sipahutar Jumahat Siregar, Jumahat Karnila, Rahman Karnila Khairul Mukmin Lubis Khairul Mukmin Lubis Khairul Rizal Lee, Seung Hun Lubis, Abdillah Lydia S Marpaung M Fadhilah Zaim Umam Manda Putra, Ridwan Matgus Riadi Mikael H Dolok Saribu Miswadi Miswadi Mubarak &#039; Mubarak Mubarak Mubarak Mubarak Muhammad Abdul Hafiz Muhammad Isnan Alindra Muhammad Rafsan Zain Muhammad Sofyan Muhammad Yevizal Muhammad Zebi Fernando Muhammad Zebi Fernando Muhammad, Andi Syahroni Musrifin Galib Musrifin Ghalib Musrifin Musrifin Nawari Nawari Nawari, Nawari Nenny Indrawaty Nico Rahmadany Niken Ayu Pamukas Ningrum, Indah Puspita Nita Cahyaning Nofrizal Nofrizal Nofrizal Nofrizal Nopriadi Nopriadi Nur Atikah Nurafni, Melia Nurdin Nurdin Nursyirwani, Nursyirwani Octaviaty, Windy Oktarina, Ayu Oliver J Hasibuan Pardede, Feri Pesta Martua Sirait Putra, Danil Putra, Danil Rama Rahmat Karnila Rahmita, R. Ramadhan, A.R Ramadhan, A.R. Ramadhan, Alif Ridho Rasoel Hamidy Reni Suryanita Revi Lasmita Rico Panjaitan Ridwan Manda Putra Rifaldi Rifaldi, Rifaldi Rifardi Rika Kurniawan Rinno Ferryno Risma Tambunan Rizal, Khairul Rizka Aprisanti Rizka Aprisanti Rizki, A. Rohul Mazidah Romie Jhonnerie Rony Setyawan Rossi, Evy Rozanda, Fenti Safitri, Nely Safridatul Audah Salmiah Safitri Sari, D.J. Setyo S. Moersidik Sinaga, Andri Decshana Siregar, Rifa Ghina Aulia Siringoringo, Frido S. Siti Fatonah Sitorus, Kornelius K Sofyan H Siregar Sofyan H Siregar Sofyan H. Siregar Sofyan Husein Siregar Sri Djuniati Sri Rezeki Suandy, Indra Suardi Tarumun Sukendi Sukendi Suryani Suryani Susilawati &#039; Susilo, Hendri Sutrisna Sutrisna Suwondo Suwondo Syafri Boy Syafri Harto Syafruddin Nasution Syahrial Syahrial Syahril Nedi Syofian Hadi T. Ersti Yulika Sari Tane, Bintang Rapshodio Tanty Juliawati Tawa, Hasbi Tengku Nurhidayah Thamrin &#039; Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Trinop Sagiarti TRINOP SAGIARTI, TRINOP Utami, Astri Hijri Verid Aria Susammesin Victor Simanungkalit Viktor Amrifo Vivi Oktaviani Vivi Oktaviani Wahyu Novra Wanda Wahyu Purwanto Wahyudi Wahyudi Wawan Widia Astin Windarti Windarti Wiwi Hardayati Yanti, D.H. Yelmida Azis Yeni Kusumawaty Yeni Sustriani Yetti Elfina Yossie Amanda Yossie Amanda Yoswaty, Des Yulina Sari Yulis Hamidy Yusni Ikhwan Siregar Yusni Ikhwan Siregar Zahrotul Aini Zahrotul Aini, Zahrotul Zahtamal Zahtamal Zientika, Zientika Zulfan Saam Zulfan Saam Zulhendri Zulhendri Zulkarnaini Zulkarnaini Zulkifli Zulkifli Zulkifli Zulkifli