ABSTRACT Peat swamp waters in Sontang Village have experienced land-use changes, due to logging and forest burning activities, will affect the type of Gastropods that live in the peat swamp habitat. This study aims to identify gastropods that live in peat swamp waters in Sontang Village. This research was conducted in April-May 2019, in the sampling areas 1, II and III. Sampling were c…
Abstract In the coastal water of Teluk Bakau village there is coral reef ecosystem that is inhabit by many coral fish species. Information on the types of coral fishes living in that area is limited. To understand the types of coral fishes in the coral reef ecosystem in that area, a study has been conducted in March-April 2019. Fish samplings were conducted once a weeks in 1 month. The…
Abstract Carrying capacity is defined as the ability of aquatic environment to support the life of organisms in that area. A study aimed to determine the aquatic carrying capacity for aquaculture fishing. The carrying capacity was determined based on dissolved oxygen concentration. The research was conducted during June to July 2019 in Tepian Batu Lake. Water samples were taken in three statio…
Abstract Madong Village is one of the coastal areas that is overgrown by vegetation in the form of seagrass which is a habitat for marine life, among other is gastropods. The presence of community activities around the seagrass ecosystem might affect the quality of waters and organisms associated with the ecosystem, especially gastropods. Information about the species of gastropods in the re…
ABSTRACT Thynnichthys thynnoides is commonly inhabit the Bunter Lake. A research aims to understand the standing stock of the fish in the Bunter Lake has been conducted in April-May 2019. The fish was sampled everyday for 24 days, using gillnets. The standing stock was analyzed using Leslie method. Results shown that the initial standing stock (No) of the fish was 227.521 kg, and the fina…
Abstract This research was conducted on July 2019 in the mangrove forest Rawa Mekar Jaya Village, Sungai Apit Sub-district, Siak Regency, Riau Province. This research aims to determine the type of mangrove, type of gastropod and determine the relationship of mangrove density with gastropod abundance in Rawa Mekar Jaya Village. The results of the research found 7 types of mangroves: Rhizopor…
Psammoperca waigiensis is found in the waters of Teluk Bakau and Dompak Lama. Both of these waters have different water characteristics and conditions. This study aims to determine the pattern of growth circles on the P. waigiensis otoliths from the two waters. This research was conducted in March-April 2019. Sampling was carried out once a week in 1 month. Otoliths were sharpened using Windart…
Phytoplankton will respond to the nutrient material that is input into the Koto Panjang Reservoir in Batu Bersurat. The dynamics of phytoplankton abundance will occur depending on nutrients and light intensity based on time and depth. This study aims to look at the dynamics of phytoplankton abundance based on time and depth. This research was conducted in June-July 2019. The sampling locations …