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Gastric Contents Analysis of Gulamah Fish (Johnius belangerii) Obtained In West Dumai Subdistrict and East Dumai Subdistrict

Autor: D Yoswaty, E Efriyeldi, U M Batubara, W Windarti, T M Ghazali, E Saputra, R S Jaya

Publikováno v: IOP Conference Series: Earth and Environmental Science. 1118:012023

Gulamah fish (Johnius belangerii) is one type of marine fish found in Dumai waters. The study aimed to analyze the composition of natural feed on the stomach contents of gulamah fish obtained in Dumai. Research methods are survey methods, sampling is

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::54ceea853900f5f8c25471c58195e988
https://doi.org/10.1088/1755-1315/1118/1/012023

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Understanding the Mechanism of Currents through the Malacca Strait Study Case 2020 – 2022 : Mean state, Seasonal and Monthly Variation

Autor: M A Wibowo, A Tanjung, null Rifardi, null Elizal, null Mubarak, D Yoswaty, R Susanti, A S Muttaqin, F R Fajary, Y M Anwika

Publikováno v: IOP Conference Series: Earth and Environmental Science. 1118:012069

The Malacca Strait is the importance waters for international shipping routes and more 200 cases of ship collisions in the period 1970-2015 in this strait. That is related to some a shallow depth waters with many small islands and strong current whic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::02fd5baf7b4699000b4c9c697872b8b1
https://doi.org/10.1088/1755-1315/1118/1/012069

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Growth of Bacillus toyonensis in Tofu Wastewater

Autor: N Nursyirwani, D Yoswaty, D A Oktavia

Publikováno v: IOP Conference Series: Earth and Environmental Science. 934:012021

Bacillus toyonensis has been isolated in Dumai mangrove ecosystem of Riau Province. One of factors affecting the growth of the bacteria is growth substrate. Tofu wastewater is rich in nutrition which can be used as substrate for bacterial growth. Thi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cf2daa51ebcc9c638a79cb62edf39e08
https://doi.org/10.1088/1755-1315/934/1/012021

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Analysis of Organic Matter Content in Water and Sediment in The Coastal Waters of Bengkalis Island, Riau Province

Autor: D Yoswaty, B Amin, null Nursyirwani, H Winanda, D D Sianturi, A Lestari

Publikováno v: IOP Conference Series: Earth and Environmental Science. 934:012055

Anthropogenic activities in the coastal waters of Bengkalis Island, Riau Province are thought to have increased due to human activities (settlements, ports, agriculture, households and industry). This caused an increase in organic matter in water and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7bd5a20645a803c18a58c0373aed6960
https://doi.org/10.1088/1755-1315/934/1/012055

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Analysis of marine debris and mangrove forest density in Purnama village, Dumai city, Riau province

Autor: A Hendrizal, D. Yoswaty, B. Amin, M A Wibowo, Nursyirwani, A Diharmi

Publikováno v: IOP Conference Series: Earth and Environmental Science. 919:012017

Mangrove ecosystems naturally function as trap of waste produced from anthropogenic activities including marine debris. This study aims to analyze marine debris and density of mangrove forests in the Purnama Village. The survey research method was ca

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c6c812f2ff59beb2ce1fbb18c6b78cba
https://doi.org/10.1088/1755-1315/919/1/012017

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Identification of microplastic waste in sea water, sediment in the sea waters of Dumai City, Riau Province

Autor: Feliatra, D. Yoswaty, Mardalisa, E. B. Fatwa, Nursyirwani, Zientika, D. Pakpahan, B. Amin

Publikováno v: IOP Conference Series: Earth and Environmental Science. 674:012113

This study aims to determine the types of microplastics in the waters of Dumai City. The method used in this research is a survey method, namely by direct observation in the field and data analysis in the laboratory. Based on research from seawater a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2d6e2c91a29296f198edd8a266d920b2
https://doi.org/10.1088/1755-1315/674/1/012113

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