ABSTRACT The Mentawai Islands, which are directly adjacent to the Indian Ocean and located in the equator, make the Mentawai Islands area influenced by the characteristics of the sea surface temperature of the Indian Ocean. The location causes the area to have a climate with hot and humid air and high rainfall. This study aims to determine the distribution of sea surface temperature, avera…
ABSTRACT This research was carried out from March 2021 to April 2021 in the coastal area of Kuala Jambi District, Tanjung Jabung Timur Regency, Jambi Province. The samples were processed at the Marine Biology and Marine Chemistry Laboratory, Faculty of Fisheries and Marine Affairs, Riau University, which aims to examine the density of mangroves, analyzing the sedimentation rate and knowing…
ABSTRACT This research aims to determine the description of the presence of macrozoobenthos which is thought to have been affected by coastal stockpiling which has recently been carried out around the Mandeh Tourism Area. This research was conducted in January – March 2022, the method used in this research is purposive sampling with sampling using the transect method. The results of thi…
ABSTRACT Macrozoobenthos are aquatic organisms that live on the bottom of the water. Macrozoobenthos can be tolerant or sensitive to environmental changes. Organisms whose lives are relatively sedentary and have varying adaptability to environmental conditions. However, there is no information about macrozoobenthos on Devil's Island in the Mandeh Tourism Area. To find out/understand inform…
ABSTRACT Plastic material is a type of compound that is difficult to degrade in waters and takes a long time to decompose. In the long term, plastic materials will be degraded in marine waters into small particles called microplastics. Microplastics can accumulate in seawater, sediments and aquatic biota. This research was conducted in September 2021 in the Carocok Beach Tourism Area, Pesisir…
ABSTRACT Echinoderms are thorn-skinned invertebrates such as sea stars, snake stars, sea urchins, sea cucumbers and sea lilies. Echinoderms are marine animals that act as cleaners for the marine environment, especially the coastal environment. This research was conducted in September 2021 in the coastal waters of Sungai Nipah, Pesisir Selatan Regency, West Sumatra Province. The purpose of thi…
ABSTRACT This research was conducted from October 2021 to January 2022, in the Natural Feed Laboratory of the Brackish Water Cultivation Fisheries Center (BPBAP) Ujung Batee, Aceh. The purpose of this study was to determine whether urea has an effect and to determine the best urea concentration on the growth of Nannochloropsis sp. This study used an experimental method with one factor RAL (Co…
ABSTRACT Spirulina platensis is a microalgae that has high economic value. The growth of S. platensis is influenced by environmental conditions and nutrients. The objectives of this study to determine the best concentration of coconut water for media of S. platensis growth. The study was conducted at the Natural Feed Laboratory of the Brackish Water Aquaculture Center (BPBAP) Ujung Batee A…
ABSTRACT This study aims to look at fluctuations in sea surface temperature and also the relationship between sea surface temperature and yellowfin tuna catches in West Waters, West Sumatra Province. The research method used is a survey method, namely collecting field data by conducting direct observations, as well as interviews with local fishermen and spatial analysis methods are used to…
ABSTRACT Coastline changes can occur due to natural factors and land use. In the coastal area of Meranti Islands Regency, Riau Province, land use factors are more dominant in influencing shoreline changes. The study method used is a quantitative method with a multi-temporal approach to satellite imagery using Digital Shoreline Analysis System (DSAS) and End Point Rate (EPR) software to cal…
ABSTRACT The west coast of Sumatra has a very high frequency of earthquakes because it is located at the confluence of the Indo-Australian Plate and Eurasian Plate. Earthquakes that occur on the seabed will increase the vulnerability of tsunamis. One of the districts in West Sumatra Province that is highly vulnerable to tsunami is the Mentawai Islands Regency. Risk assessment is very depen…
ABSTRACK Pasumpahan Island is an area that is affected by currents, waves, and sedimentation processes. Pasumpahan Island is close to the Indian Ocean and the mouth of the Pisang River. This causes shoreline changes, such as abrasion and accretion. This study aims to determine the effect of currents, waves, and sedimentation processes on the rate of shoreline change for 30 years (1991-2021…
The study was conducted from November to December 2021 at the Fisheries Products Chemistry Laboratory, Faculty of Fisheries and Marine Affairs, Riau University and Laboraturium of the Faculty of Medicine of Syarif Hidayatullah State Islamic University. The purpose of the study was to analyze hydrolysate astaxanthin as an inhibitor of the enzyme alf glucosidase. The method used is an experi…
ABSTRACT Bivalvia is a class of the Mollusca phylum. Bivalvia is also known as Pelecypoda and Lamellibrankhiata. Bivalvia occupies an area of the intertidal zone, one of which is in the intertidal zone of Pasumpahan Island. But information about bivalves in the area does not exist. To know/understand the information about the density and distribution pattern of bivalves on Pasumpahan Islan…
ABSTRACT Mangroves are plants that have an important role in providing very complex and potential food components for the life of various thing at there and terrestrial biota. Mangrove's high productivity is obtained from litter. Mangroves have dregs that has a very important function for the mangrove ecosystem, including maintaining the fertility of forest soil. Soil and plant fertility d…
ABSTRACT Mangrove is a type of vegetation that grows on muddy soil in tidal areas, around the river estuary and in tropical coastal areas. To support the success of mangrove forest management, it is important to pay attention by the factors that affect the growth of mangroves. This research was conducted in October – December 2021. The purpose of the study was to determine the type, densi…
ABSTRACT Coastal and marine areas have the potential for anthropogenic pollution. Solid waste, especially plastic, is a pollutant that contributes greatly to polluting coastal areas. Plastic will degrade into small sizes known as microplastics. This research was conducted in January 2022 in the sea waters of Padang Tourism Beach (Air Manis Beach and Muaro Lasak Beach) and Pariaman Tourism …
Abstract Organic matter has an important role in marine ecology and it can be used as an indicator of water fertility. The content of organic matter in the waters in a certain amount can be useful for aquatic biota, but if it exceeds the acceptable threshold for the environment and organisms, it can cause disturbances. The content of organic matter in the waters will increase due to waste …
ABSTRACT This research was carried out in December 2021. Sampling and measurement of water quality were carried out in the Estuary of the Bukit Batu River, Bengkalis Regency, Riau Province. Sample analysis was continued at the Marine Chemistry Laboratory, Department of Marine Science, Faculty of Fisheries and Marine Affairs, Riau University. The purpose of this study was to determine the e…
ABSTRACT The purpose of this study is to determine the rate of shoreline change and the level of abrasion in Bukit Batu Sub-District, Bengkalis Regency, Riau Province based on several physical variables in the coastal area. End Point Rate (EPR) is a method that can be used to calculate the rate of shoreline change by displaying transects according to their category (high abrasion, medium a…