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All Journal Jurnal Ilmu dan Teknologi Kelautan Tropis Jurnal Natur Indonesia Jurnal Perikanan dan Kelautan Berkala Perikanan Terubuk Jurnal Ilmu Perairan (Aquatic Science) Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan ECSOFiM (Economic and Social of Fisheries and Marine Journal) Jurnal Ilmiah Pertanian Jurnal Perikanan Universitas Gadjah Mada Aquacultura Indonesiana Asian Journal of Aquatic Sciences Unri Conference Series: Community Engagement Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Jurnal Zona Journal of Coastal and Ocean Sciences Journal of Rural and Urban Community Empowerment Dinamika Lingkungan Indonesia Jurnal Riset Kelautan Tropis (J-Tropimar) South East Asian Marine Sciences Journal Jurnal Perikanan dan Kelautan Jurnal Natur Indonesia
Dessy Yoswaty
Universitas Riau
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Immunology & microbiology Library & Information Science Materials Science & Nanotechnology Physics Social Sciences

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Relationship Between Microplastics Abundance and Sediment Organic Content in Dumai Coastal Waters Zientika, Zientika; Amin, Bintal; Yoswaty, Dessy
Journal of Coastal and Ocean Sciences Vol. 2 No. 3 (2021): September
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/

Abstract

Plastics in the environment would eventually be degraded into plastic granules which are called microplastics. In recent years, microplastics have been spread widely not only inland but also in aquatic habitats, where averagely 5% of the plastic produced each year will end up in marine waters. The purpose of this study which was conducted in October to November 2020 was to identify the type and abundance of microplastics in the sediment as well as its possible relationship with the sediment organic matter in Dumai waters. Sediment samples were taken from Dumai coastal waters by using purposive sampling method. Identification of the types and abundance of microplastics as well as the analysis of sediment organic content were carried out in the Laboratory of Chemical Oceanography, Department of Marine Sciences, Universitas Riau. Microplastic and sediment particles were separated using 150 ml saturated NaCl solution. The types of microplastics found are fiber, fragment and films, where fiber was found to be the most commonly found (36.43%), followed by fragments (31.97%) and films (31.60%), respectively. No significant correlation found between microplastic abundance and the sediment organic content in Dumai coastal waters.
Antibacterial Activity of Avicennia alba Leaves and Stem Extracts Against Pathogenic Bacteria (Pseudomonas aeruginosa, Aeromonas salmonicida, Staphylococcus aureus) Purba, Paedo Yayaki; Yoswaty, Dessy; Nursyirwani, Nursyirwani
Journal of Coastal and Ocean Sciences Vol. 3 No. 2 (2022): May
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/

Abstract

This research was conducted in November 2020-February 2021 at the Laboratory of Fish Quarantine and Quality Control (BKIPM) Pekanbaru, Riau. The aim of this research was to test the activity of A. alba mangrove leaf extracts and stems in inhibiting the growth of pathogenic bacteria P.aeruginosa, A.salmonicida, and S.aureus. The research method used in this study is the experimental method. The sampling was conducted at the location of Marine Station UNRI Purnama Dumai. The results showed that A. alba leaf extract has the highest inhibitory power at a concentration of 100% with an average of 4.37–5.13 mm. The highest inhibitory power was against S.aureus (5.13 mm) and the lowest inhibition power was found in A. salmonicida (4.37 mm). The lowest inhibition was found at a concentration of 12.5% with an average of 0.45–0.67 mm. The stem extract of A. alba had the highest inhibitory power at a concentration of 100% with an average of 6.17–7.47 mm. The highest inhibition power was against S. aureus 7.47 mm and the lowest inhibition power was found in A.salmonicida (6.17 mm). The lowest inhibitory was at a concentration of 12.5% with an average of 1.52–2.29 mm. Based on the criteria for the strength of antibacterial activity of stem extract A. alba was in the medium category and the leaf extract was in the weak category.
Identification of Indigenous Bacteria from Dumai Sea Waters Using 16S rRNA Method Fatwa, Esa Buana; Yoswaty, Dessy; Effendi, Irwan
Journal of Coastal and Ocean Sciences Vol. 2 No. 3 (2021): September
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/

Abstract

Indigenous bacteria are bacteria that naturally live freely in nature and have a variety of benefits for humans. These bacteria also have the potential to degrade pollution bacteria in the water. This research was conducted in November-December 2020. The purpose of this study was to and identify indigenous bacteria from dumai sea waters using the PCR method of 16S rRNA sequence technique. Based on the results of the study based on the analysis of 16S rRNA it is known that isolate 10 belongs to the bacterium genus Bacillus and has a homological rate of 93% with Bacillus paramycoides bacteria. Based on the phylogenic tree of isolate bacteria 10 does not have nodes associated with ten bacteria contained in NCBI. This suggests that phylogenically indigenous bacteria ISL 10 have no species similarity to the ten bacterial isolates in the phylogenetic tree, but have a similarity of base order of 93% to B. paramycoides.
Analysis of Indigenous Bacteria as Microplastic Degradation of Sediment in the Sea Waters of Dumai, Riau Province Pakpahan, Deni; Yoswaty, Dessy; Nursyirwani, Nursyirwani
Journal of Coastal and Ocean Sciences Vol. 2 No. 3 (2021): September
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/

Abstract

Nowdays Marine pollution resulted by microplastics is a global concern. Microplastic particles have the potential to cause damage to biota. One of solution to overcome the problem of marine pollution by microplastics by applying indigenous bacteria as microplastic degradation. This study was conducted to determine the type and ability of indigenous bacteria in sediments that are able to degrade microplastics. The research was conducted from October to December 2020. Sediment sampling was conducted in Dumai Sea Waters and sample analysis was conducted at the Marine Microbiology Laboratory, Faculty of Fisheries and Marine, Riau University. Indigenous bacteria from sediments were isolated in bacterial breeding media and then tested degradation capabilities on PET plastic samples. The result of the degradation test obtained ISL8 was able to degrade the mycoplastic with a percent degradation about 7%. Molecular test of ISL8 using PCR (Polymer chain reaction) 16S rRNA method and GenBank analysis is known that ISL8 is Bacillus sp.
Isolation and Identification of Bacteria from Dumai Marine Waters that Have Potencial as Lead Bioremediation Agents Yanti, Della Hijri; Nursyirwani, Nursyirwani; Yoswaty, Dessy
Journal of Coastal and Ocean Sciences Vol. 2 No. 3 (2021): September
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/

Abstract

One of the harmful pollutants to human health is the heavy metal Lead (Pb). A high concentration of lead that has can accumulate in the body of living things if in a long period of time. Lead concentrations that exceed the threshold in an environment can cause damage that affects aquatic biota and other living things. This research was carried out in February-April 2021. The purpose of this study was to isolate and identify bacteria that have the potential as lead bioremediation agents from Dumai marine waters. Isolation and identification of bacteria were carried out at the Laboratory of Marine Microbiology, Department of Marine Science, Faculty of Fisheries and Marine Sciences, and the lead concentration test at the Laboratory of Chemical Testing and Analysis, Department of Chemical Engineering, Faculty of Engineering. The results of the isolation on Marine Agar media which was added with Pb acetate (Pb(CH3COO2)) obtained three bacterial isolates from Dumai sea waters, namely D1, D2, and D3. The isolate that had the best growth was isolated D1. The isolate D1 was able to reduce the highest Pb concentration from 10 ppm by 80.53%, at a concentration of 20 ppm Pb, the isolate D1 was able to reduce Pb concentration by 78.8% and at a concentration of Pb 30 ppm, isolate D1 was able to reduce Pb concentration by 77.21%.
Kajian Potensi dan Strategi Pengembangan Ekowisata Bahari Pulau Pagang, Kecamatan Koto XI Tarusan, Kabupaten Pesisir Selatan, Sumatera Barat Pardede, Feri; Yoswaty, Dessy; Mulyadi, Aras
Ilmu Perairan (Aquatic Science) Vol. 10 No. 1 (2022): Maret
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Penelitian ini dilaksanakan Bulan Januari – Februari 2020 di Pulau Pagang, Kecamatan Koto Xi Tarusan, Kabupaten Pesisir Selatan, Sumatera Barat. Penelitian bertujuan untuk mengetahui potensi ekowisata bahari dan aspek yang menjadi kekuatan pada perairan Pulau Pagang untuk dikembangkan sebagai kawasan ekowisata bahari. Metode yang digunakan dalam penelitian ini adalah metode survei dan penentuan titik stasiun secara purposive sampling. Hasil perhitungan dari Nilai Indeks Kesesuaian Wisata yaitu 80,77% (Stasiun I), 80,77% (Stasiun II), 82,69% dan (Stasiun III). Penilaian mengenai kekuatan, kelemahan, peluang, dan ancaman, pengembangan potensi perairan Pulau Pagang dinilai dari hasil pengamatan di lokasi penelitian, wawancara dan kuesioner. Pulau Pagang memiliki potensi sebagai kawasan ekowisata bahari seperti keindahan alam yang alami, terumbu karang, dan memiliki biota laut yang khas. Pengembangan obyek wisata bahari di Pulau Pagang dapat dilakukan dengan 1) Penataan wilayah dengan membentuk sistem zonasi untuk kegiatan wisata bahari dan kegiatan yang dilakukan masyarakat terhadap aktivitas ekowisata pantai dan pengelolaan lingkungan pesisir, 2) meningkatkan promosi berskala nasional maupun internasional, 3) Penyusunan tata ruang atau zonasi wisata dengan berbagai lembaga terkait dan masyarakat lokal.
Identifikasi Makrofauna Penempel yang Berasosiasi dengan Mangrove di Kawasan Marine Station Purnama, Dumai Ilman, Muhammad Khairi; Samiaji, Joko; Yoswaty, Dessy
Ilmu Perairan (Aquatic Science) Vol. 13 No. 2 (2025): Juli
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jipas.13.2.190-198

Abstract

Makrofauna penempel yang hidup berasosiasi dengan mangrove  sebagian besar berasal dari golongan krustasea, bivalvia dan gastropoda. Penelitian ini dilakukan pada bulan April 2024 di kawasan mangrove Marine Station Universitas Riau, Kelurahan Purnama, Kota Dumai, Provinsi Riau. Tujuan penelitian adalah mengidentifikasi makrofauna penempel yang berasosiasi pada mangrove, mengetahui struktur komunitas makrofauna penempel yang berasosiasi dengan mangrove, dan mengetahui perbedaan kelimpahan makrofauna penempel yang berasosiasi dengan mangrove antar stasiun di kawasan penelitian. Metode yang digunakan adalah metode survey dengan penentuan lokasi penelitian menggunakan metode purposive sampling, sehingga ditentukan 3 stasiun yang masing-masing terdiri dari 3 plot. Makrofauna penempel yang berasosiasi dengan mangrove diperoleh dari kelas gastropoda dan krustacea. Gastropoda 11 spesies yaitu Cerithidea cingulata, Cerithidea obtusa, Nerita articulata, Neritina violacea, Ellobium aurisjudae, Cassidula aurisfelis, Chicoreus capucinus, Littoraria scabra, Assiminea brevicula, Pythia plicata, dan Platevindex coriaceus. kelas Krustacea hanya ditemukan 1 spesies yaitu Balanus amphitrite. Rata–rata nilai kelimpahan makrofauna penempel yang ditemukan pada stasiun 1 yaitu 8,67 ind/m2, stasiun 2 yaitu 7,33 ind/m2 dan stasiun 3 yaitu 3,67 ind/m2. Kelimpahan antar stasiun berbeda nyata (p< 0,05). Rata-rata nilai indeks keanekaragaman jenis yaitu 1,69 artinya keanekaragaman sedang. Berarti perairan tersebut tidak mengalami gangguan atau masih dalam keadaan baik. Rata- rata nilai indeks dominansi diperoleh 0,22 atau tidak ada jenis yang mendominasi. Rata-rata nilai indeks keseragaman diperoleh 0,88, artinya keseragaman organisme berada dalam keadaan seimbang, tidak terjadi persaingan terhadap tempat maupun makanan.
Sustainable Tourism Development in Sungai Apit District Riau Province: Mangrove Ecotourism Factors Yoswaty, Dessy
Jurnal Perikanan dan Kelautan Vol. 26 No. 3 (2021): October
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

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

Abstract

One of the efforts to overcome the problem of environmental damage in the mangrove forest ecosystem is the management of mangrove ecotourism. The concept of mangrove ecotourism is a responsible trip to mangrove forest areas for mangrove forest conservation efforts and improving community welfare. This study aims to examine sustainable tourism development in Sungai Apit District Riau Province: mangrove ecotourism factors. The method used in this research is a survey method, which was determined at 4 (four) research locations, namely Mengkapan Village (Station I), Sungai Kayu Ara Village (Station II), Kayu Ara Permai Village (Station III) and Tanjung Kuras Village (Station IV). Each research station consists of three sampling points for measuring the quality of coastal waters. It is obtained an overview of environmental factors that support the growth of mangrove forests. Research activities have been carried out in April-November 2020. The results showed that the mangrove forest ecosystem in the Sungai Apit District Suitable (S2) to be developed as a mangrove ecotourism area with an average IKW value of Station I was 75.39%; Station II of 76.71%; Station III is 78.82% and Station IV is 76.32%. The potential and attractiveness of mangrove ecotourism in Sungai Apit District has been developed by the Siak Regency government. The strategy for developing mangrove ecotourism in Sungai Apit District based on SWOT analysis and interviews is to prioritize the W-O strategy which consists of: 1) Increasing the participation of stakeholders in the management of mangrove ecotourism; 2). Promote effective ecotourism promotion, information and market activities; 3) Improve coordination between stakeholders properly and 4) Improve the quality of human resources through training and education activities.
Assessment of Marine Ecotourism Development Potential in Lapin Beach, North Rupat, Riau Province Akbar, Aidil Rahmad; Samiaji, Joko; Yoswaty, Dessy
Journal of Coastal and Ocean Sciences Vol. 6 No. 3 (2025): September
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/jocos.6.3.139-149

Abstract

Lapin Beach in North Rupat, Riau Province, has excellent potential to be developed as a marine ecotourism area due to its natural beauty and local cultural richness. However, no scientific research has explored this potential in depth. This study aims to analyze the potential and formulate strategies for the sustainable development of marine ecotourism in Lapin Beach to improve the welfare of local communities. The research was conducted from December 2024 to February 2025. Data were collected through observation, interviews, questionnaires, and water quality measurements. The analysis used is the coastal tourism suitability index and the SWOT approach. The results showed that Lapin Beach has strong potential for ecotourism, supported by easy access, natural panoramas, and community participation. The tourism suitability index ranged from 83.97 to 86.53%, indicating a high suitability (S1). Water quality and coastal topography support tourism activities. SWOT analysis suggested strategies including promotion, facility improvements, and community engagement in maintaining sustainability. Recommended development strategies include optimizing natural attractions, empowering local businesses, improving infrastructure, and enhancing monitoring efforts. Further studies should consist of aspects of biota, vegetation, and economic impact to support sustainable ecotourism management and enhance community well-being.
Analisis Spasio-Temporal Perubahan Garis Pantai di Wilayah Timur Kepulauan Bengkalis Tahun 2004-2024 Khaira, Annisa Ulfa; Rifardi; Dessy Yoswaty; Zulkifli; Ilham Ilahi
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 7 No 2 (2025): November
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v7i2.130

Abstract

Perubahan garis pantai merupakan fenomena dinamis yang didorong oleh interaksi proses alami dan antropogenik, termasuk transportasi sedimen, arus laut, aktivitas gelombang, dan intervensi manusia. Penelitian ini bertujuan untuk menganalisis perubahan garis pantai di Desa Pambang Pesisir, Kabupaten Bengkalis, selama periode 20 tahun (2004–2024) menggunakan citra satelit Landsat 8 OLI/TIRS C1 Level 2 tahun 2004, 2014, dan 2024. Metodologi yang digunakan meliputi analisis perubahan garis pantai melalui teknik penginderaan jauh dan pengukuran parameter fisika air laut seperti kecepatan arus dan tinggi gelombang. Hasil penelitian menunjukkan adanya tren penambahan garis pantai (akresi) di tiga stasiun pengamatan. Stasiun I, yang terletak di kawasan hutan mangrove, mengalami kemajuan garis pantai dengan laju 7,81 meter per tahun. Stasiun II, yang terletak di zona galangan kapal mengalami akresi sebesar 6,1 meter per tahun, sedangkan Stasiun III sebagai kawasan pariwisata, menunjukkan penambahan garis pantai sebesar 6,90 meter per tahun. Analisis pasang surut menunjukkan pola pasang surut campuran dengan dominasi semi-diurnal. Kecepatan arus bervariasi di berbagai stasiun, yaitu 0,29 m/s di Stasiun I, 0,33 m/s di Stasiun II, dan 0,36 m/s di Stasiun III, sedangkan tinggi gelombang masing-masing diukur sebesar 0,3 meter, 0,08 meter, dan 0,7 meter. Studi ini menyimpulkan bahwa perubahan garis pantai terutama dipengaruhi oleh kecepatan arus, energi gelombang, dan aktivitas antropogenik, terutama pembangunan struktur perlindungan pantai seperti tanggul. Temuan ini memberikan wawasan penting untuk pengelolaan dan perencanaan pembangunan pesisir yang berkelanjutan, dengan menekankan pentingnya mengintegrasikan dinamika alam dan dampak manusia ke dalam tata kelola wilayah pesisir.
Co-Authors ', Afrimansyah ', Frisilia ', Maryanto ', Mubarak ', Thamrin Abdurrahman, M. Adelina Adelina Afrimansyah &#039; Afrizal Tanjung Akbar, Aidil Rahmad Akhmad Ferdinan Hairo Alfiati Silfi Algino Panuntun Akbar Alit Hindri Yani Anak Agung Gede Sugianthara Andika Sitohang Angelia E Bernike Zebua Anggit Wondy Satrio Antonius &#039; Aras Mulyadi Arbaeyah &#039; Ardiah, Siti Arief Rachman. B Aris, Pajri Attur Mudzy Domo Azizul Fauzan Aznardi, Shodikin Batubara, Ummi Mardiah Bintal Amin Darina Darina Darma Bagus Saputra Darmawan, Ernanda P. Deni Efizon Devano, Rigo Devi Ambarwaty Oktavia Deviasari Deviasari Dewi, Shinta Rafida Dewita Dewita Domo, Attur Mudzy Efriyeldi, Efriyeldi Eka Saputra Elizal, Elizal Elkana Gabariel Eriani, Eti Eza Buana Fatwa Fahriansyah Fahriansyah Fatwa, Esa Buana Fatwa, Eza Buana Fauzan, Azizul Febby aprilliza Febri Naldi Feffiana M Amin Feliatra Feliatra, Feli Feri Handoyo Pardede Feronika Mendrofa Fitri, Sabrina Nur Gatot Yulianto Gustasya, Yosy Hade Mulyadi Hade Mulyadi Hanifa, Zurya Hapzi Ali Hari Winanda Hasyimi, Wahid Haura, Sari R. Al Hendra Kharisma Heni Pujiastuti HERI SYAHFITRI Herimufty Herimufty Hisbullah, Ali Akbar Hotdholy destrinanda Ida Rahayu Simanjuntak, Ida Rahayu Iesje Lukistyowati Ilbi Candra Yani Ilcia Teshi Diafana Ilham Ilahi Ilman, Muhammad Khairi Indra Bayu Pratama Inka Wahyuni Irvina Nurachmi Irwan Efendi Irwan Efendi, Irwan Irwan Effendi Irwan Irwan Ismail Abdurrahman Siregar Januardi, Deki Joko Samiaji Jonny Zain Jung jung Maranata Juni Artha Hasibuan Kaprisal, Kaprisal Kelly Fuadi, Kelly Khaira, Annisa Ulfa Khairul Mukmin Lubis Kurnia, Fadly Agra Kurniawan, Mohd Rizky Kusdiatmoko, Aprizal Laksono Trisnantoro Livi, Aldisa Sipti Lucky Rahman Lukystyowati, Isye Mahdiyah, Evfi Mahmudah, Dewi A. Mardalisa, Mardalisa Matgus Riadi Mhd. Fadhillah, Mhd. Fadhillah Mirad, Awis Monika, Siska Mubarak Mubarak Mubarak Mubarak Muhammad Agus Muljanto Muhammad Alam Mulia Hasibuan Muhammad Hafizh Muhammad Razali MUHAMMAD RIZAL Musrifin Galib Musrifin Ghalib Nabila Afifah Azuga Naldi, Febri Niken Ayu Pamukas Nofri Andri Yulan Nursyirwani, Nursyirwani Oktarina, Ayu Oktavia, Dewi Asmiati Pajri Aris Pakpahan, Deni Panjaitan, Grace P Pardede, Feri Perie Anugraha Wiguna Prakasa Mustanto Prasetya, Dandy Purba, Paedo Yayaki Putra, Rajiv R. Ramadhan, Ragiel Ranap Junani Sari Rendy Lani Dinata Rifaldi Rifaldi, Rifaldi Rifardi Risma Tambunan Rival Junaidi Rizki, Fariza Rohadatul Aisy Romeo &#039; Romida, Zuwita Ronal Kurniawan Saharudin Saharudin Said Muhammad Qadry Saputri, Apriliana Saputri, Apriliana Eka Sari, Desy Mutia Sari, Nian Setiawan, Ilham Shodikin Aznardi Sibarani, Michael Parluhutan Jupiter Sihotang, Usia Xoros Sinuraya, Tri Setia Darma Siregar, Meiyanto Siringo-ringo, Irpan suriadi Siti Ardiah Siti Nursubadriah Situmorang, Adrian Sofyan Husein Siregar Sri Endang Kornita Sri Melinda Citra Syafruddin Nasution Syahada, Melania Syahril Nedi Syaifuddin Nasution T. Ersti Yulika Sari Tanjung, May Juna Tanjung, May Juna putri Thamrin &#039; Thamrin Thamrin Trisla Warningsih Ummi Mardiah Batubara Utami, Rahma I. Wahyuni, Inka Winanda, Hari Windarti Windarti Yanti, Della Hijri Yesi Yohana Esteria Yulinda, Emelda Yurestira, Ilham Yusni Ikhwan Siregar Zainuri -, Zainuri Zientika, Zientika Zulfan Saam Zulkarnaini Zulkarnaini Zulkifli Zulkifli &#039; Zulpikar &#039;