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Journal : ecotone

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.
Belida Fish Cultivation (Notopterus notopterus, Pallas 1769) as Swamp Fish which is Nursed with Different Stocking densities Sukendi Sukendi; Thamrin Thamrin; Ridwan Manda Putra; Ade Yulindra
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.1-10

Abstract

Belida fish (Notopterus notopterus, Pallas 1769) is one of Indonesia's endemic fish which is often found in swamp waters having high economic value. The population of belida fish until now has decreased due to the high fishing activities in nature. To maintain the population of belida fish in order to remain sustainable from nature  is by cultivation activities. One of  important aspect in belida fish culture is the determination of stocking density used. This study aims to determine the optimum stocking densities in the belida fish farming activities. This research was conducted from June to August 2019 in the fish pond of Sungai Paku Village, Kampar Kiri Subdistrict, Riau. The design used was a completely randomized design with 3 levels of treatment and 3 replications. The treatment used in this study was stocking density consisting of 5, 10 and 15 fish / m3. The results showed that the 5 fish / m3 stocking density treatment produced the optimum fish growth with absolute length growth value (11.48 cm), absolute weight growth (48.73 g), daily growth rate (2.83%), survival rate (86 , 7%), fat retention 1.27% and protein retention value 19.83%.
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.
Sustainable Management of Guruh Gemurai Waterfall Ecotourism in Kuantan Singingi Thamrin Thamrin; Ridwan Manda Putra; Nofrizal Nofrizal; Rahman Karnila
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.93-104

Abstract

Tourism Location of Guruh Gemurai Waterfall, Kuansing is one of the most beautiful tourist destinations to visit, which is located in Kuasing Regency, Riau. The study is conducted from September to October 2010. To see the sustainability of this tourist area, research was carried out to identify current environmental conditions. Factors for future development and assessing the ecotourism sustainability of Guruh Gemurai Waterfall using a survey. From the research results, it is found that many factors need to be improved by the management, especially those related to the safety of visitors, especially the stairs and handrails at level 4, the facilities besides being equipped with representative trash cans. It is recommended that the seven levels be managed, then all that is available must be developed again, both the damaged ones and the new ones, which must be remade so that it affects labor absorption. From the leveraging factors, there are six: covering the basic water substrate, water conditions, having protected species, local labor absorption, environmental knowledge, and growth in the number of traders. However, from these six leveraging factors, there are only three factors that can be improved, namely local labor absorption, environmental knowledge, and growth in the number of traders.
Preliminary Research on Longtail Shad Food in Bengkalis Riau Waters Thamrin Thamrin
ECOTONE Vol 2, No 2 (2021)
Publisher : Riau University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ecotone.2.2.p.65-71

Abstract

Longtail Shad are endemic in the waters of Riau and especially in the waters of Bengkalis Regency and have omnivore characteristics, namely eating plants and also from groups of animals. The purpose of this study is whether fish is the best in choosing food depending on the type of food or not. This study uses a survey method, which was conducted in Bengkalis waters from May to June 2019. In this study, it was shown that fish is the best in choosing food depending on the type of food available (selective), so that if the type of animal, in this case, is crustacean and crab. There are a lot of small crabs, then the worst fish eat the group of crustaceans and small crabs. However, if what is available is only from the algae group, the best fish will only eat from the algae group. So that in the stomach of the Longtail Shad are not found both types of food at once
The Revitalization of The Culture and The Traditional Building of Rumah Godang in Kenegerian Adat Sentajo Kuantan Singingi Zulfan Saam; Thamrin Thamrin; Nofrizal Nofrizal; Fachrurrozi Fachrurrozi
ECOTONE Vol 2, No 1 (2021)
Publisher : Riau University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ecotone.2.1.p.1-8

Abstract

Rumah Godang or traditional house in Kuantan Singingi is a cultural heritage building. The building is tens or even hundreds of years old, but the building is still preserved. The existence of Rumah Godang is related to socio-cultural activities and environmentally friendly traditional tambul. Recently, there has been a degradation of the function of Rumah Godang and its socio-cultural activities. Therefore, it is necessary to revitalize the socio-culture and building of Rumah Godang. The purpose of this study was to develop a cultural revitalization program and to compile a technical drawing of the Rumah Godang building. This type of research is qualitative research. The research location is the customary state of Sentajo, Kuantan Singingi Regency. The study population was the traditional houses and cultural activities in Kenegerian adat Sentajo. Data collection techniques are through observation and in-depth interviews with key informants, namely traditional leaders and formal leaders which are then analyzed qualitatively. The results of this study are (a) Revitalization of cultural aspects is the socialization delivered by ninik mamak in Rumah Godang or other traditional events, (b) The arrangement of technical drawings of Rumah Godang keeps Rumah Godang original, so that if it is renovated it must be guided by technical drawings.
Co-Authors A Mulyadi Abda Abda Abdul Kodir Jailani Abdul Patah Rasyidi Afrizal Tanjung Agung Dhamar Syakti Agus Mandar Aldila Hasanah Ambar Tri Ratna N Angga Paskibragustian Anita, Sofia Aras Mulyadi Ariza Julia Paulina Auda Murad Bahruddin Bahruddin Bambang Irawan Batubara, Ummi Mardhiah Belilasari Belilasari Bintal Amin Chitra Himawan Darwis Darwis Deden Sutrisco Nopria Dedi Afandi Desfi Yunarto Desfi Yunarto Desti Zarli Mandari Dewita Dewita Dhina Yuliana Dodi Irwan Siregar Doni Apdillah Dwi Arya Winata Eddiwan Eddiwan Eddiwan Kamaruddin Efriyeldi, Efriyeldi Eko Sutrisno Elfiandri Elfiandri Elnovrian Purnama Saghita Endro Siswoko Fachrurrozi Fachrurrozi Fauziah Syamsi Firdaus Firdaus Gusnan Suryadi Hamdayani Hamdayani Hari Haryanto Harlon Sofyan Hasbi Tawa Helda Helda Hersa Javayu Defitra Ilham Ilahi Imam Pangestiansyah Putra Indawati ' Indawati Jasmiyati Jasmiyati Jenny Lisiana Jonny Zain Karnila, Rahman Karnila Khairil Anwar Khairunnisa Gunawan M Hafiz M. Imran Sinaga Mayarni Mayarni Melia Nurafni Mubarak Mubarak Muchlis Muchlis Muhammad Edisar Mulyadi . Mulyadi Mulyadi Nofrizal Nofrizal Noviawati Riza Nuraini Nuraini Nurmayani Nurmayani Nuryasin Abdillah Patwa Hadiyatma Putri Wahyuni R. Sandra Agustin Rahmadi Rahmadi Raja Rahmita Ramses Ramses Rasoel Hamidy Razai, Tengku Said Reatra Ari Koswara Ricky Arief Budiman Ridwan Manda Putra Rifati Hanifa Rika Kurniawan Rika Kurniawan Rika Kurniawan Riza Fitriana Rizal Muhtady Rosmayani Rosmayani Rosmayani Rosmayani Rosyadi Rosyadi Rudi Formen Saghita, Elnovrian Purnama Setyo S. Moersidik Siska Sasri Yulia Sofyan H. Siregar Sofyan Husain Siregar Sofyan Husein Siregar Sofyan Husine Siregar Sopyan Hadi Sri Wulandari Sujianto Sukendi Sukendi Suyanto Suyanto Syafruddin Nasution syaifuddin syaifuddin Syaiful Bahry Syaiful R. Harahap Syifa Murtaja Tengku Mutia Smita Dwivayana Tengku Nurhidayah Vani Oktavia Siahaan Veraliza ' Veraliza Viktor Amrifo Viktor Amrifo Viktor Amrivo Vivin Seygita W.E Tinambunan Windarti Windarti Yanti Agustina Yudha Januarizki Setiawan Yulia Prasiska Yuliana . Yulindra, Ade Yusni Ikhwan Siregar Zainal Abidin Zarrin Mastur Zulfan Saam Zulfan Saam Zulfan Saam Zulfan Saam Zulfan Sa’am Zulkarnaini Zulkarnaini Zulkifli Zulkifli