Gourami (Osphronemus gouramy Lacapede, 1801) is one of the freshwater fish commodities with a high economic value. Presently, gourami cultivation in Indonesia appears to be promising, with a strong consumer demand. Apart from having dense meat and delectable flavour, gourami also has high nutritional value and contains more proteins compared to other freshwater fish. Overall, this study aims t…
This research was conducted in April 2023. The analysis took place at the Physical Oceanography Laboratory and the Marine Chemistry Laboratory, Department of Marine Science, Faculty of Fisheries and Marine Sciences, Riau University. The aim was to analyze sediment fraction texture, organic content, types, and density of mangroves, as well as the relationship between organic content and mangrove…
This research was conducted in July 2023. The method used in this research was a survey method and determining the sampling point was purposive sampling. The results of the research show that the amount of TSS concentration found in the waters of the Anai estuary is at high tide towards low tide with the highest average TSS content at sampling point 5, namely 136 mg/l and the lowest at sampling…
Identification of Vibrio sp. bacteria in the water of intensive and traditional ponds for vannamei shrimp in Teluk Pambang Village was conducted from March to June 2023. The objective of this research was to calculate the quantity of Vibrio sp. bacteria, identify observe the morphological characteristics, and identify the various types of Vibrio sp. bacteria in the water of intensive and tradit…
This research was conducted in August 2022 at Jati Beach, Mentawai Islands. The aim of this study is to examine the diversity of echinoderms and seagrasses and analyze the relationship between seagrass density and echinoderm abundance at Jati Beach. The method used is the survey method. The determination of sampling points is carried out using the purpose sampling method. Samples are taken dire…
Nannochloropsis oculata is a microalgae that is often used as natural food for fish larvae. In general, microalgae cultivation uses standardized Walne fertilizer. This dependence causes the need to develop alternative natural liquid fertilizers such as Azolla microphylla. This research uses an experimental method which aims to determine the effect of administering A. microphylla liquid fertiliz…
This study was conducted in June-July 2023 in intensive system ponds in Bengkalis Regency. The purpose of this study was to identify the types of ectoparasites and calculate the prevalence value found in Vaname Shrimp (L.vannamei) cultivated in intensive systems. The method used was survey method, sampling was done in 3 pond locations. The results showed that several types of ectoparasites were…
Poecilia reticulata are popular freshwater ornamental fish and are included in the 6 types of ornamental fish that are in great demand, has high commercial value in domestic and foreign markets. Domestically, the price of guppy fish reaches Rp. 15,000–35,000/head while for foreign countries the price of guppy fish starts from Rp. 275,000–780,000/head. The obstacle in cultivating guppies is …
This study was conducted to determine the characteristics of berunok sea cucumber hydrolysate (Paracaudina australis) and the type and level of total amino acids contained. This research was conducted using experimental methods, with a Non-Factor Complete Randomized Design consisting of 3 levels of enzyme concentration treatment (1%, 2% and 3%). In this study, the parameters tested were the pro…
The mullet (Mugil cephalus) is a marine fish of the tribe Mugilidae which body is elongated and slender. This fish is benthopelagic with omnivorous eating habits. The plastics often found among the food that mullet fish consumes. The study was carried out in the waters of Dumai in June 2023, with the aim of knowing the abundance and type of microplastics in the stomachs of mullet. The method us…
This research aims to determine Avicennia alba litter production, analyze the density level of A. alba mangroves, and analyze the relationship between A. alba mangrove density and A. alba litter production in rehabilitated mangrove forests in Kedabu Rapat Village, Kepulauan Meranti Regency, Riau Province. Determination of research stations used a purposive sampling method based on the mangrove …
The mangrove ecosystem is a distinctive ecosystem found along coastal areas and river estuaries, influenced by the ebb and flow of seawater. Only a few organisms can thrive in such environments, with one such group being mollusks. Two classes of the phylum Mollusca with the largest number of species are Gastropoda and Bivalvia. This research aims to identify, analyze the abundance, diversity, a…
Analysis of sedimentation rate on the coast of Selat Baru, Bengkalis Regency, Riau. This research was conducted in March 2023 at the Mouth of Jangkang River, Tourist Beach, and the Mouth of Liong River, Bengkalis Regency, Riau. The method used in this research is a survey method, involving observation and sample collection conducted at the research location. Based on the results of field sample…
This research was carried out in February-March 2023 at Samudra Bungus Port, West Sumatera. The aim is to determine the effect of rainfall and wind on fish catches for fishermen at Samudra Bungus Harbor, West Sumatera. Rainfall and wind data were obtained from BMKG Bayur Bayur, Padang, while fish catch data was obtained from PPS Bungus staff, West Sumatera. The methods used in this research act…
The species, abundance and fecundity of mudskipper in Kundur Island were conducted from April to October 2023. This study aims to determine the species, abundance and fecundity of mudskipper on Kundur Island. Sampling was conducted at three observation stations. Data were collected using 40 m transects at each station.. Each transect consists of 4 plots with an observation size of 10 x 10 m2 wh…
This study was to know the distribution pattern and changes of salinity, temperature in the estuary of Kuala Tungkal Pangabuan River Jambi province. This research was conducted in July 2022 in the waters of the Kuala Tungkal Pengabuan River, Jambi Province. The analysis was conducted at the Oceanographic Physics Laboratory of the Department of Marine Science, Faculty of Fisheries and Marine Sc…
This research was carried out in August to December 2022 in phase 1 research and March to July 2023 in phase 2 research and phase 3 research was carried out in October 2023 to January 2024 in the waters of Sei Barumun, Labuhanbatu Regency. This research aims to analyze the optimization of use of terubuk fish resources in Sei Barumun waters, analyze the sustainability status of management of ter…
Caru fish (M.cordyla) is a small pelagic fish that is classified as a carnivorous fish because the main food of this fish consists of animal origin. Fish stomach content is important data for directly studying the ecology of fish feeding, fundamental information that is important for understanding the functional role of fish communities in aquatic ecosystems and is useful for understanding inte…
This research has been carried out in July 2023 in Muara Sungai Dumai, Dumai City, Riau Province. This study aims to conduct depth mapping analysis using echosounder based on reference corrections to tides. Tidal analysis is performed to determine reference values such as MSL (Mean Sea level) and tidal characteristics. The methods used are survey methods and quantitative analysis. The results s…
Plastic waste in the sea can have a pollution impact, where light plastic can easily be carried by currents and waves in the water column and accumulate in sediment. Plastic waste takes a long time to decompose depending on its composition and environmental conditions. This research was carried out using a survey method at three different stations in the coastal waters of Padang City, West Sema…