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All Journal EduChemia: Jurnal Kimia dan Pendidikan Aceh Journal of Animal Science Jurnal Dimensi Jurnal Penelitian Sains Omni-Akuatika BIOEDUSCIENCE Dinamisia: Jurnal Pengabdian Kepada Masyarakat Dinamika Maritim Minda Baharu ECOTONE SIMBIOSA CANANG: Jurnal Pengabdian Masyarakat Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan
Ramses Ramses
Universitas Riau Kepulauan
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences Other

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Journal : ECOTONE

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Saprobic Index and Composition of Phytoplankton in the Sungai Jang, Tanjungpinang, Indonesia Tengku Said Razai; Thamrin Thamrin; Nofrizal Nofrizal; Viktor Amrivo; Ramses Ramses; Yusni Ikhwan Siregar; Imam Pangestiansyah Putra; Rika Kurniawan
ECOTONE Vol 1, No 2 (2020)
Publisher : Riau University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ecotone.1.2.p.47-56

Abstract

Environmental pollution that occurs in Tanjungpinang City, cannot be separated from the pollution of the aquatic ecosystem. Water pollution is caused by the presence of waste from residential activities, shops, industry, and other activities that produce waste. Likewise, what happens in the waters of the Sungai Jang, the activities of settlements, shops, industry can cause water pollution in this area, so a study is needed to see the extent of environmental pollution. The indicator used to determine the level of water pollution is by looking at the saprobity index through the phytoplankton community. This research was conducted by dividing the research stations based on differences in activity, namely; station 1 (settlements), station 2 (mangroves), station 3 (shops, industry), station 4 (reclamation). The results showed that the composition of the phytoplankton species found in the waters of the Sungai Jang, Tanjungpinang consisted of 17 species which were classified into 5 divisions. Diatomae types have the most number of species among other divisions, and the most dominating. The dominance of phytoplankton from the class Bacillariophyceae (Diatomae) cannot be separated from the role of nutrients in the water. The average saprobic index value of -0.39 is classified as Moderately Polluted (Meso Saprobik). Pollution that occurs is a result of organic waste from existing activities, causing an increase in nutrients. From the results of measurements in the field, the nutrient content (nitrate and phosphate) in the waters of the Sungai Jang had exceeded the quality standard.
Biodiversity of Bivalvia Tridacnidae in Marine Conservation Area : Lesson Learned from Abang Island, Kepulauan Riau Province-Indonesia Ramses Ramses; Fauziah Syamsi; Thamrin Thamrin; Nofrizal Nofrizal; Hamdayani Hamdayani; Tengku Said Razai; Rika Kurniawan
ECOTONE Vol 1, No 1 (2020)
Publisher : Riau University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ecotone.1.1.p.32-40

Abstract

Kima (local name) is known as a giant clam of a group of bivalve mollusca belonging to the Tridacnidae family that live in coral ecosystems zhich are considered as endangered species (CITES: Appendix II). This study aims to determine the biodiversity and ecological index of Tridacna in Abang Island waters, as well as determine the status of its presence in this area. A field survey was conducted on the type, number and distribution of tridacnae at each location by SCUBA equipment dive using the sweept area method on the transect lines. The transect wasplotted at 2-5 m in depth parallel to the shoreline at each observation station with covering observation area as far as 2.5 meters both on the left and 2 right side of the observers. The results showed 5 species of Kima with a total of 75 individuals, namely Tridacna maxima, T. Squamosa, T. crocea, T.derasa and H. hipppus. The densitywas maximal for T.maxima 0.014 individu/M2 folowing by T.squamosa (0.009/M2), T.crocea (0.006/M2), T.derasa (0.003/M2), H.hipppus (0.001/M2). While the relative density were T.maxima (44%), T.squamosa (26.7%), T.crocea (18.7%), T.derasa (8.0%), and H.hipppus (2.7%). The diversity index (H ') was 1.33 with representing a medium diversity category, dominance index (D) equal to 0.70 and Uniformity (E') equal to 0.82. T. maxima, T. squamosal, and T. crocea were found abundantly in the study area while T.derasa and H. hippopus were hard to find and T. gigaswasabsences presumably due to local extinction and functional extinction. Protectionof Tridacna in natural habitats is a must to maintain the ecological function and sustainability of Tridacn awith strict and controlled management.
Co-Authors Adil Waraney Alit Hindri Yani Amin Ramli Amrullah Rasal Ary Yancer Jimi Erika Budijono, Budijono Bustari Bustari Destaria Sudirman Nurhaty, Destaria Sudirman Devi Bella Pratiwi Dini Anggraini Endang Murniati Erwin Ashari, Erwin Fatmawati, Riska Fauziah Syamsi Fauziah Syamsi Fenny Agustina Fitrah Amelia Fitrah Amelia Fitrah Amelia Hamdayani Hamdayani Hamdayani Hamdayani Harni Lainy Br.Bakkara Hendrianto Hendrianto Imam Arifandy Imam Pangestiansyah Imam Pangestiansyah Putra Intan Sari Dewi Intan Sari Dewi, Intan Sari Ismarti Ismarti Ismarti Ismarti Ismarti S, Ismarti Ismarti, Ismarti Lani Puspita Lani Puspita Lisa Salminda Maryuna Tumanggor Masrudi Masrudi Mazni Mazni Miswadi Miswadi Mulhairi Mulhairi Nofrizal Nofrizal Nofrizal Nofrizal Nofrizal Nofrizal Noto Winarto, Noto Notowinarto Notowinarto Nurhaty Purnama Sari P.N Pramuanggit Pusvariauwaty Pusvariauwaty R. Pramuanggit Panggih Nugroho R. Pramuanggit Panggih Nugroho Rahmadi Rahmadi Rahmi Rahmi Rahmi Rahmi Rahmi Rahmi Ramdani Ramdani Razai, Tengku Said Revida Pinem Rika Kurniawan Rika Kurniawan Romie Jhonnerie Rommie Jhonnerie Rommie Jhonnerie Roza Efriningsih Rozirwan . Styvany Styvany Suheyanto Suheryanto Syamsir Hasibuan Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Viktor Amrivo Wan Irham Wening Kadarsih Yarsi Efendi Yusni Ikhwan Siregar Zulfan Sa’am