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All Journal Jurnal Perikanan dan Kelautan Berkala Perikanan Terubuk Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Asian Journal of Aquatic Sciences Dinamika Lingkungan Indonesia
Joko Samiaji
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Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Environmental Science Immunology & microbiology Social Sciences

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PROFIL PARAMETER KIMIA OSEANOGRAFI PANTAI TIMUR SUMATERA Fadli, Fani; Samiaji, Joko; Amin, Bintal
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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Abstract

This study was conducted in April-May 2013 in the inner marine waters of the eastern coast of Sumatra and the samples were analyzed in the Chemistry Laboratory of Marine Science Department of Fisheries and Marine Science Faculty of Riau University. This study was aimed to determine the chemical profile of oceanographic parameters in the coastal waters of the east coast of the Sumatra region into two parts, namely the southern and northern parts. Based on the analysis conducted on the chemical oceanographic parameters such as nitrate, nitrite, phosphate, ammonia, dissolved oxygen, and the degree of acidity. Concentration nitrate, nitrite, phosphate, and ammonia has a high concentration values with the approach of sampling stations towards the coast. While the dissolved oxygen and the degree of acidity of the sea towards the higher concentration value. The overall values of water quality parameters were as follow a). In the south section: nitrate 0.0102-0.0890 mg/l, nitrite 0.0675-0.4388 mg/l, phosphate 0.0022-0.0310 mg/l, ammonia 0.0403-0.6602 mg/l, DO 4-7 mg/l, pH 7.48-8.16. b). In the north section: nitrate 0.0025-0.0331 mg/l, nitrite 0.0738-0.1097 mg/l, phosphate 0.0044-0.0177 mg/l, ammonia 0.0333-0.9229 mg/l, DO 5-8 mg/l, pH 7.53-8.15. The physical parameters of the water was a factor in supporting this research.Keywords: East coast of Sumatra, chemical, oceanography
JENIS DAN KELIMPAHAN IKAN TEMBAKUL DI PANTAI DUMAI PROVINSI RIAU Naibaho, Reny Cristina; Samiaji, Joko; ', Efriyeldi
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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Abstract

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.
THE CONTENT ANALYSIS OF HEAVY METALS OF Pb, Cu, Zn, Ni AND ORGANIC MATTER IN THE SEDIMENT OF EAST COAST OF SUMATERA Fitria, Wahyuni; Amin, Bintal; Samiaji, Joko
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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The research was conducted in August – November 2013. The purpose of this study was to determine the content of heavy metals of Pb, Cu, Zn and Ni in the sediment and its organic matter content in the east coast of Sumatera. The method used was survey method in wich the East coast of Sumatera coastal waters was used as the location of sampling.The results showed that different sediment fraction had different concentration of heavy metals. The sediment fraction of >250 μm had higher concentration than the fraction <63 μm and 63 μm – 250 μm. The concentration of Pb, Cu, Zn and Ni in the sediment were 7.29, 12.91, 8.69 and 14.57 μg/g respectively. Simple linier regression analysis showed of negative corelations for Pb, Cu, and Zn. and positive corelations for Ni with the content of organic matter in the sediment. The Pb, Cu, Zn and Ni concentrations were still below the value of ERL and ERM.Keywords : heavy metals, sediment, organic matter, east coast of Sumatera
Distribusi Diatom Epilitik (Bacillariophyceae) Berdasarkan Jenis Substrat Pada Zona Intertidal Kawasan Pelabuhan Palimbungan Ketek Batahan Kabupaten Mandailing Natal Provinsi Sumatera Utara Rahim, Mustafa; Samiaji, Joko; Mubarak, Mubarak
Jurnal Perikanan dan Kelautan Vol 22, No 1 (2017)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.22.1.9-17

Abstract

Penelitian ini dilaksanakan pada bulan Desember 2016 sampai Januari 2017 dikawasan Pelabuhan Palimbungan Ketek Batahan Kabupaten Mandailig Natal SumateraUtara dengan tujuan untuk mengetahui jenis dan distribusi diatom epilitik berdasarkanjenis substrat (kayu, semen, dan batuan alam). Metode yang digunakan adalah metodesurvey dan analisis dilakukan di Laboratorium Biologi Laut Fakultas Perikanan danKelautan. Hasil penelitian menunjukkan bahwa diatom yang ditemukan sebanyak 10spesies. Diatom epilitik dengan kelimpahan tertinggi yaitu spesies Isthmia sp. Rata-ratakelimpahan diatom epilitik tertinggi antar substrat terdapat pada substrat kayu sebesar7.686,46 ind/cm2. Kemudian rata rata kelimpahan tertinggi antar plot bagian terdapatpada substrat batuan alam plot I, II, dan III bagian bawah dengan rata-rata nilai kelimpahanyaitu 2.951,05 ind/cm2. Nilai rata-rata indeks keanekaragaman jenis (H’) berkisardari 0,963 - 1,672. keseragaman jenis (E) berkisar antara 0,230 – 0,611. indeksdominansi diatom (D) berkisar dari 0,367 – 0,592.
Strategi Konservasi Ekosistem Mangrove di Desa Sungaitohor Kecamatan Tebingtinggi Timur Kabupaten Kepulauan Meranti Hasibuan, Ari Permel; Samiaji, Joko; Nasution, Syafruddin
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.22.2.49-56

Abstract

Penelitian ini bertujuan untuk mengkaji kondisi ekosistem hutan mangrove berdasarkanKriteria Baku Kerusakan Mangrove dan menyusun strategi pengelolaan ekosistemmangrove di Sungaitohor. Penelitian dilaksanakan pada bulan Februari sampai denganMei 2017 di Desa Sungaitohor. Metode yang dipakai dalam penelitian ini adalah metodesurvey, dimana setiap transek dibentang tali dari laut ke darat. Pada setiap zonasimangrove yang berada di sepanjang garis transek, diletakkan plot pohon berbentukbujur sangkar dengan ukuran 10 × 10 m2 dimana didalamnya terdapat petakan 5×5 m2untuk anakan dan 2×2 m2 untuk semai. Hasil penelitian ditemukan 11 jenis mangrove.Jenis mangrove yang dominan di lokasi penelitian adalah jenis Avicennia alba. Berdasarkankriteria baku kerusakan mangrove, kondisi mangrove dalam kondisi baikdimana kisaran kerapatan pohon adalah 666,67 - 2333,33 pohon/ha, substrat padadaerah hutan mangrove adalah lumpur berpasir. Rata-rata indeks keanekaragaman pohonrendah (H’= 0,74), diakibatkan tingkat abrasi pantai tinggi dan tumbuhan mangroveyang berasosiasi. Strategi konservasi dijelaskan bahwa hutan mangrove di DesaSungaitohor dalam kawasan yang dilarang dalam kepemilikan perseorangan, kawasanmangrove ini tidak diperbolehkan untuk membuka lahan, pemukiman, tambak ikan danpenebangan kayu mangrove secara bebas.
Sebaran Klorofil-a Menggunakan Citra Satelit Landasat 8 di Kawasan Perairan Sungaitohor Kabupaten Kepulauan Meranti Mifdhol Hafli, Raja Diddin; Samiaji, Joko; Elizal, Elizal
Jurnal Perikanan dan Kelautan Vol 22, No 1 (2017)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.22.1.44-50

Abstract

Klorofil-a merupakan salah satu parameter oseanografi penting yang menentukan kelimpahandan sebaran populasi ikan. Penelititian ini bertujuan untuk mengetahuidaerah penangkapan ikan dan kesesuaiannya dengan sebaran klorofil-a di perairan.Penelitian telah dilaksanakan di perairan Sungaitohor, Kabupaten Kepulauan Meranti.Metode yang digunakan adalah survey. Penentuan titik sampling menggunakan metodepurposive sampling. Pengambilan sampel di lapangan telah dilaksanakan pada bulanFebruari 2017 dan analisis klorofil-a di laboratorium pada bulan Maret 2017. Hasilpenelitian menunjukkan terdapat 4 titik daerah penangkapan ikan (DPI) di perairanSungaitohor. Konsentrasi klorofil-a di perairan berdasarkan analisis laboratorium berkisar0,878 - 7,356 μg/l dan berdasarkan analisis citra satelit Landsat 8 berkisar 0,806 –9,541 μg/l. Validasi terhadap kedua data menunjukkan hubungan yang sangat kuatdengan koefisien korelasi (r) = 0,8634 dan tidak berbeda secara siginifikan. Hasilpenelitian menunjukkan tingkat kesesuaian DPI terhadap sebaran klorofil-a adalahsebesar 75 %.
The Abundance and Distribution Patterns of Mussel Shell (Meretrix meretrix) in Coastal Water of Tanjung Balai Asahan North Sumatra Province Nasution, Syafruddin; Samiaji, Joko; ', Marini
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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This research was conducted from September – Oktober 2014 in coastalwater of Tanjung Balai Asahan north Sumatra. In general the shell was a group ofinvertebrate animal (invertebrates) with its shape easy to be recognized. Mostshell were characterized by the presence of a shell that protected the body andonly a small part type was not shelled. The mussel shell M. meretrix was animportat fishery commodities as food from the sea and popular to Tanjung Balaicommunity. Tanjung Balai Asahan coastal was one of the mussel shell M.meretrix potential in north Sumatra. This research was aims to determine theabundance and distribution patterns of mussel shell M. meretrix in the intertidalzone Tanjung Balai Asahan. The method applied on this research was surveymethod. Location ofthe study were divided into 2; station 1 was away from thesettlements; while station 2 was near residential area. To get a description of theabundance distribution of mussel shell M. meretrix in the intertidal zone of thecoastal Tanjung Balai Asahan, the tidal area was divided into 4 zones by dividingthe tidal zone vertically, range from high tide to low tide.In each zone a sample taken 5 plot with plot size 1x1m2. Sediment samplewere taken by 3 points in each zone, and rolled into one, so that amount ofsediment sample by 4 sample at each station. Sample taken shell, sediment,measurement quality of the measured temperature, salinity, pH, brightness. Theresult showed that the average abundance ranged from 1.6 ind/m2to 7 ind/m2. Thepattern of distribution in the study area tend to cluster. Based on the calculation ofthe t test at each station and each zone F test on the abundance of mussel shell M.meretrix showed equally not significantly different.Keywords: Mussel shell, abundance, sediment, pattern distribution, TanjungBalai Asahan.
MANGROVE LITTER DECOMPOSITION SPEED IN MARINE STATION DUMAI Azizah, Nur; Samiaji, Joko; ', Nursyirwani
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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This study of was conducted in December 2014 - March 2015 in the area of mangrove forests Marine Station Dumai. The purpose of this study was to determine the speed of litter decomposition of mangrove and the diversity of fungi in litter of mangrove. The method used was survey method. The sampling and measurement for water quality included salinity, temperature and pH that were done directly in the field. Weighing litter carried out at the Laboratory of Marine Chemistry whereas litter decomposition data analysis and identification of fungi diversity was carried out in the Laboratory of Marine Microbiology Faculty of Fisheries and Marine Sciences University of Riau. Mangrove leaf litter decomposition was in the highest at station III with a percentage value of litter decomposition rate of 1.31% per day. The identification results in leaf litter on the mangrove areas showed that there were eight types of fungi that included two of the species Aspergillus sp., Chaetomium sp., Candida sp., Gliocladium sp., Culvularia sp., Bipolaris sp. and Exophiala sp. The most often fungi found in each observation was Gliocladium sp. The highest fungi species diversity index was at score of 2.08 on a mangrove leaf litter that was found on observation IV.Key words : mangrove , litter , decomposition rate , fungi , Dumai Marine Station
STUDY OF MARINE ECOTOURISM POTENTIAL IN BERHALA ISLAND LINGGA REGENCY RIAU ARCHIPELAGO PROVINCE Rahmad Febriyandi; Joko Samiaji; Mubarak &#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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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
DIVERSITY OF CRAB IN Mangrove Forest Ecosystems OF SELAT BARU BENGKALIS Ahmad Saripuddin; Joko Samiaji; Syafruddin Nasution
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
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This research was conducted in May-June 2015 in the mangrove forest ofSelat Baru ofBengkalis.The method used in this study was a survey method.Sampling was performed at the time of low tide. The location of sampling stations are divided into three observation stations. Station 1, located on mangrove areas adjacent to the shelter fish caught by fishermen, Station 2,was located in the mouth of theLiong rifer, station 3,was at the was mangrove forest area that was relatively still in good condition mangrove ecotourism area. Analysis of samples carried out in the Laboratory of Marine Biology, University of Riau.The study found 15 species of crab derived from 2 clases and 15 families.The results showed that the average density of crabs found in the station's highest density and lowest at station III II. Statistical analysis (ANOVA) note that abundance was not significantly different between stations on the level of confidence (F. 0.05).   Keywords: crab, Abundance, Organic Sediment, Selat Baru
Co-Authors ', Efriyeldi ', Marini ', Nursyirwani A.A. Ketut Agung Cahyawan W Afrizal Tanjung Ahmad Saripuddin Algino Panuntun Akbar Andi Febrian, Andi Anggi Irfan Hasibuan Aras Mulyadi Aras Mulyadi Ardi Gunawan Siregar Ayu Agustina Bintal Amin Bintal Amin Dessy Yoswaty Dewi Ariana Efriyeldi &#039; Efriyeldi, Efriyeldi Elizal, Elizal Elizal, Elizal Fani Fadli Fitriansah, Heru Fuady, Muhammad Ikhram Fuady Ikhram Hari Mulyadi, Hari Hasibuan, Ari Permel Hendra Kharisma Ilham Ilham Imron Imron Irvan Dwi Putra Irvina Nurrachmi Irvina Nurrachmi Irwan Effendi Maizaldi, Maizaldi Manalu, Lili Yanti Marpaung, Bertaulina Merry Sintya Dewi Mery Mery Mifdhol Hafli, Raja Diddin Mubarak &#039; Muhammad Alam Mulia Hasibuan Muhammad Isnan Alindra Muhammad Razali Muhammad Wahyu Hasibuan MUHAMMAD YUSUF Musrifin Galib Musrifin Ghalib Nasution, Muhammad Rasid Nursyirwani Nursyirwani Panggabean, Iis Apriati Paniska, Almaarif Putra &#039; Putra, Jefri Eliyas Rahim, Mustafa Rahmad Febriyandi Raja Siagian Reny Cristina Naibaho Rifardi Rifardi Ruth Natalia. S Said Nazman Arif Saul Heryanto H.N Shofian Nanda Adiprayoga Sihaloho, Indra Y P Sitompul, Krivide Sitorus, Kornelius K Sofyan H. Siregar Sofyan Husein Siregar Sri Ratna Hidayati Sunarti &#039; Syafruddin Nasution Thamrin Thamrin Thamrin Thamrin Wahid Wahid Wahyuni Fitria Yanasari, Nurry Yuke Constina Zulkifli &#039;