Periphyton is a sessile microscopic organism that attach on aquatic vegetation.A research aims to understand the community structure (types and abundance)of periphtyon in the mangrove ecosystem of the Sungai Rawa Village, has been conducted from June to July 2018.There were 3 sampling area, close to the settlement area, in the ecotourism area and in the natural area with no human inhabitant. Th…
study aims to understand the effectiveness ofEchinodorus palaefolius and Limnocharis flavain absorbing heavy metals from the surrounding water was conducted in March - April 2018. The plants are placed in floating tires.Pb and Cdwere analyzed from the root, stem and leaf of the plant.Samplings were conducted 3 times, once/month.Results shown that the average of Pb and Cd in the water was 0.6220…
Oil spill contaminated water present around the oil well drilling well. The presence of crude oil may trigger gene mutation in specific bacteria present in that area . The bacteria may produce biosurfactant for degrading the oil. A study aims to obtain biosurfactant producing bacteria from oil spill contaminated water around petroleum drilling wells in the PT. Bumi Siak Pusako – Pertamina Hul…
Tapung Kiri River is the upstream part from the Siak River. Tapung Kiri River is affected by the activities of a society that can degrade water quality. The decrease in water quality will negatively affect the health status of Mystus nigriceps. The health condition of fish can be seen from the histological structure of gills, so it needs to be done for the study of the structure of the gills of…
Rasbora cephalotaenia Bleeker is a spesies of freshwater fish that live in the Kandis River. Information on the feeding habit of the fish, however, is limited. This study aims to understand the stomach content of R. cephalotaenia from the Kandis River has been conducted from March to May 2018. The fish was sampled once every two weeks for two months. There were 128 fishes captured, however only…
Echinodorus palaefolius and Limnocharis flava are able to absorb heavy metals in the water and it can be used for phytoremediation process. A research aims to understand the Cu and Fe content in the water and the ability of the plants to accumulate at those heavy metals was conducted in March - April 2018. Samplings were conducted 3 times, once/month. Heavy metals analyzed from the root, strem …
Monopterus albus was found in the swamp area of the Sawah Village. To understand the type of reproductive biology of M. albus, a study has been done in March-May 2018. Parameters measured were sex ratio, gonad maturity level, gonad somatic index (GSI), fecundity and egg diameter. Fish sampling were conducted 10 times, once/ week. There were 71 females, 15 transitions and 10 males captured. Sex …
There are many types of crustasea and makrophyta in the swamp area in the Sawah Village, but there is no information on the association of those organisms. A research aims to understand the type of makrophyta, type of crustasea and association of crustasea and makrophyta, a research has been conducted in August–September 2018. Sampling were conducted once/week for a month period. Macrobrachiu…
EM4 fermented domestic sewage is rich in organic materials that can be used as nutrient source for growing Chlorella sp. A study to understand the best concentration of the waste has been conducted in July to August 2018. The waste was added to peat water and there were 6 treatments applied, P0 (0%), P1 (50%), P2 (55%), P3 (60%), P4 (65%) and P5 (70%). Then 100 ml of Chlorella c…
EM4 fermented tofu industry liquid waste is rich in orgaic materials and can be used as nutrient source for growing Chlorella sp. A study aims to understand the best concentration of the waste has been conducted in July to August 2018. The waste was added to peat water and there were 4 treatments applied, P0 (0%), P1 (20%), P2 (30%), and P3 (40%). Then 100 ml of Chlorella culture (12.023.000 ce…
Monopterus albus is one of freshwater fishes that inhabitthe swamp area of Sawah Village, Riau. A research aim to understand the information of stomach content and its relation to size, sex and environmental condition has been done in March to May 2018. The fish was captured using fishing rods. Sampling was conducted 9 times in two months. The analysis was conducted using a volumetric method. T…
Sail river has been polluted by heavy metals and those affects the organs of muscles and gonad of the fish, a study has been conducted on December 2017 to January 2018. Samplings were conducted two times, once/month, in the downstream of the river. Heavy metals content were analysed using AAS. Results shown that the average concentration of Fe in the gills, muscles and gonad were 2.123, 1.970 a…
Hampala macrolepidota commonly inhabit the Lubuk Siam Lake. A research aims to understand the standing stock, relative growth rate and recruitment pattern of H. macrolepidota in that lake was conducted in March 2018. Fish was sampled everyday for a week period, in 3 sampling points (in the inlet area, in the middle of the lake and at the end of the lake), using gill nets. The standing stock was…
Climbing perch (Anabas testudineus) is one of freshwater fish living in the swamp area in the Sawah Village. Information on the biological aspect of this fish, however, is limited. A study aims to understand the reproductive biological aspect of this fish has been conducted from March - April 2018. The fish was sampled once/week for a month period. They were 100 fishes, 36 males and 64 females.…
The existence of human activities around the Pekak Lake producing organic and anorganic materials that enter the water and affects the type and density of zooplankton in general. To understand the types and density of zooplankton in the Pekak Lake, a research has been carried out in March-April 2018. There were three sampling points, namely in the inlet, in the middle of the lake, and in the en…
There are many types of makrophyta and fish present in the swamp area in the Sawah Village, but there is no information on the association of fish and makrophyta in the swamp. To understand that association, a research has been conducted in August – September 2018. Sampling were conducted once /week for a month period. Puntius johorensis, Rasbora einthoveniiand Puntius lineatus were found aro…
Periphyton is one of microorganisms that serve as primary producer in the aquatic environment. Research aims to determine the chlorophyll-ɑ concentration of periphyton attached in plastic substrate has been carried out in April-May 2018 in the Sail River. There were three sampling stations, namely S1 (in the upstream), S2 (in the middle) and S3 (in the downstream). Samplings were conducted onc…
Macrobrachium mammilodactylus was a type of freshwater shrimp that inhabit swamp area around the Riau Main Stadium. The population of shrimp in the swamp was relatively high and it indicates that the reproduction of the shrimp was succeed. This research aims to understand the reproductive biological aspects of the shrimp and it was conducted in March-April 2018. Sampling were conducted 4 times,…
Lubuk Siam lake is an oxbow lake that has high fishery potential. The presence of the fish, however, is affected by seasons. The fish enter the lake during the wet season as the water from the Kampar River flow to the lake. This research aims to determine the structure of fish community in the lake during the dry season, March to April 2018. Fish sampling was carried out four times, once/week. …
Barbodes schawanefeldii was commonly inhabit the Indragiri River. A research aims to understand the population of B. schawanefeldii in that river was conducted in July 2018. Fish was sampled everyday for 10 days, using gill nets and cast net. The population estimation was analyzed using a Leslie Method. Results shown that the initial population (No) of the fish was 446 kg and the final populati…