Pariaman City is a tourist destination in West Sumatra which in turn may be vulnerable to plastic waste pollution. This study was conducted in February 2020 in the coastal area of Pariaman City with the aim to determine the type and abundance of microplastic and to determine if there is any differences in the number of microplastics between stations and between depths of the sediment. Surv…
The damage rate of mangrove forests in Indonesia is considered as the fastest and largest in the world. The reduced density of mangroves can be influenced by the water quality and the organic matter content around the mangrove ecosystem, causing changes in the mangrove leaves both in the shape of the length and width. This study was conducted in the mangrove ecosystem in the western part of…
Operating a gombang gear in the Bengkalis waters may negatively affects the sustainability of fish resources in the future as the catch was consist of the target and the non-target species (bycatch and discard). To find out a gombang sustainable fisheries management model based on bycatch and discard analysis, a study was conducted. Samplings were done monthly. The catch were identified an…
The skin of sea cucumber (Holothuria scabra), a wasted part, has a potential source of glucosamine for osteoarthritis repair. The purpose of the study was to determine the characteristics of sea cucumber, chitosan extraction and characterization, glucosamine hydrolysis, and its activity in the production of synovial fluid in experimental rats. Materials and Methods: Sea cucumbers, 525+83.6 g in…
This research was conducted in February 2020 at Benan Island, Katang Bidara Sub-District, Lingga Regency, Riau Islands Province. This research aimed to determine the value of density, biomass, and carbon stock in seagrass, E. acoroides. The method used in this study was a survey method, the location in which the data was being collected consider representing the waters of Benan Island. The…
The entry of nutrients (nitrate, phosphate and silicate) from land-based antrophogenic activities (industry, agriculture and household waste) through rivers can potentially cause changes in water quality and will affect fertility and aquatic organisms such as phytoplankton. These three nutrients play an important role in the living tissue cells of living organisms and in the photosynthesis …
Cerithidea cingulata and Littoraria scabra are type of snail that use mangrove ecosystems as one of their habitat. Dumai is one of the industrial cities in the province of Riau, where various kinds of human activities can disrupt the ecosystem of mangroves and its associated biota. This study was conducted in Agustus 2019 in the Mangrove Forest Area Pecinta Alam Bahari (PAB) of Pangkalan S…
The research was conducted in Pesisir Selatan Regency West Sumatra Province in October - November 2019. The aim of the study is to determine coastline changes and coastal vulnerability index. Primary data were obtained from field observations and secondary data from related sources. The results of this research showed the area was changed due to the occurance of accretion nearly (1 - > 2.1…
The Siak River is one of the biggest and the deepest in Riau Province wich flows through Siak Regency, Rokan Hulu Regency , Kampar Regency, Pekanbaru City. Siak Rivers is the deepest in Indonesia with a dept of about 18 meter and a length of 300 kilometers. Siak River is used by society for bathing, washing, dringking water sources, routes of transportation, place for living aquatic biota, and …
Organic matter is one indicator of environmental fertility either on land or at sea. Content of Organic matter in the water will experience an increasing caused by discharges from households, agriculture, industry and organic waste from land to coast. The objective of this research is to know the content of organic material in water and sediment in the waters of Halang Muka Island and the …
ABSTRACT This study was conducted in January – February 2020, which was located in Pangkalan Jambi Village, Bukit Batu District, Bengkalis Regency, Riau Province. The purpose of this study was to determine the potential amount of carbon stored in mangrove vegetation area of mangrove forests. The survey method was applied in this study and carbon stock analysis was carried out in the Mari…
ABSTRACT This research was conducted in October 2019 in the waters of Sirih Bay Padang, West Sumatra Province. The objective of this research aims was to determine the number of bacterial cells as indicator of water pollution (E. coli) in the waters of Sirih Bay, Padang. The method used in this study was a survey method. Polluted waters in Sirih Bay as sampling location was divided into 3 …
ABSTRACT The research was conducted in October 2019 in Tiram estuary mangrove, the District of Padang Pariaman West Sumatra. This study aims were to determine the characteristics of the habitat, abundance, size frequency distribution, and the distribution pattern of Polymesoda erosa in Tiram estuary mangrove. The method used in this study was a survey method. Mangrove area was divided into…
ABSTRACT This study was conducted from October-November 2019, located in Batang Masang River Estuary Village Tiku V Jorong Agam, West Sumatera. This study aims to understand community structure of epizoic diatoms in snail shells Cerithidea cingulata. The method used in this study was a survey method. Identification diatom was conducted at the Marine Biological Laboratory Marine Science Fa…
The Media is a material consisting of a mixture of nutrients used by microorganisms to grow and breed. Molasses and liquid waste know one of the alternative media which has the least inexpensive carbon source and is easily obtained from the waste food industry that is rich in nutrients and minerals, so it has the potential for bacterial growth of Bacillus cereus. The consetration of molass…
This research was conducted in July-August 2019 in the northern part of the Poncan Gadang Island Sibolga, North Sumatra Province. This study discusses the distribution and distribution patterns of mollusks (gastropods and bivalves) which contain species, density, and species discussed in the northern part of Poncan Gadang Island, North Sumatra Province. The method used is a survey method, w…
The aim of this research was to determine the optimal media composition and incubation time for the growth of Bacillus cereus and B. cereus isolate consortium with other strains isolate. Using an experimental method, which was testing 2 groups of bacterial isolates; B. cereus strain SN7 (isolate N) and bacterial consortium (combination of 5 isolates of B. cereus with different strains). Eac…
This research was conducted in November 2019 in Sitiris-tiris Coast of Central Tapanuli, North Sumatra. This study aims to determine the potential for marine ecotourism in Province and development strategy. The method used in this study was a survey method to collect qualitative and quantitative data such as interviews, questionnaires and measurement data at the study site. The research loc…
ABSTRACT This research was conducted in March 2019 in the waters of Bagan Tanjungbalai Village Asahan Regency North Sumatera Province. The purpose of the study were to analyze the community structure and distribution of benthic foraminifera. Determination of the research was purposive sampling of 4 station with 3 sampling points where the distance each sampling point was 50 meters wich we…
ABSTRACT This research was conducted in January 2019 in the mangrove area of Purnama Village, Dumai City, Riau Province. The purpose of this study was to determine the crab community structure which includes the type, abundance, crab distribution patterns, species diversity (H '), species uniformity (E), and species dominance (C) crabs. The method used in this study is a survey method. The…