Oil degradation bacteria can be found in various habitats in the marine environment including in the waters around the harbor. This study aims to isolate the oil degrading bacteria from waters around the port of Bengkalis and test its ability to degrade crude oil. Isolation of the degrading bacteria has been done from February to April 2017 at the Marine Microbiology Laboratory, Department of Marine Science, Faculty of Fisheries and Marine University of Riau. The amount of oil degrading bacteria ranges from 0.2 x 105 to 8.9 x 105 CFU/ml. The isolation result was obtained by 10 isolates of oil degradation bacteria, ie BM1a, BM1b, BM1c, BM1d, BM7a, BM7b, BM7c, BM7d, BM14a and BM14b. Identification based on morphological, physiological and biochemical characteristics of each isolate, all isolates were round and elevated, six were white in color, three were yellow, one cream-colored isolate, eight isolates with slippery edges and two isolates with periphery waves, seven isolates were indol positive, two isolates produced H2S, four isolates were methyl red positive, all isolates were motile, capable of fermentation of glucose and sucrose in sugar test, able to ferment citrate, positive catalase and Gram negative bacteria. For degradation test only five bacterial isolates were selected of BM1a, BM1b, BM1c, BM7a and BM7d. The highest degradation at 1% concentration was indicated by isolate BM1a, the highest degradation at 2% and 3% concentrations was indicated by BM1c isolate. Therefor, bacteria isolate capable of degrading the highest crude oil was BM1c.

Diatoms are the largest phytoplankton group and as the primary producer in marine waters. This research was conducted in September 2016 around Cawan Island of Indragiri Hilir Regency of Riau Province. The aim of this research was to determine the structure of epiphytic diatom community on the midrib of Nypa fruticans and to determine water quality as well as to see the relationship of epiphytic diatoms abundance with water quality. The survey method was applied in this research and sampling location determined by purposive sampling. Measurement of water quality was done by in situ and ex situ which consist of biology, physics and chemical parameters. Nitrate concentrations in waters ranged from 0,0139 to 0,0639 mg/l and phosphate concentrations ranged from 0,1342 to 0,2345 mg/l. The epiphytic diatoms on the midrib of Nypa fruticans in Cawan Island consist of 18 genera of diatoms, the average value of abundance ranged from 7.385 to 23.042 individual/cm2 , the mean value of diversity index ranged from 1,41 to 2,05.The dominance index value ranged from 0,27 to 0,52 and the uniformity index value ranged from 0,58 to 0,91. Meanwhile, the correlation of diatom abundance with concentration of nitrate was 0,21 (weak relationship) and correlation of diatomic abundance with phosphate concentration was 0,11 (very weak relationship). Based on the result of epiphytic diatom calculation on the midrib of Nypa fruticans can be concluded that the waters in Cawan Island was in medium contaminated condition

The study was conducted from January to February 2017 in Kampar River Estuary Area of Pelalawan District of Riau Province. Water sample analysis was done at the Chemical Oceanography Laboratory of the Faculty of Fisheries and Marine. This study aims to determine the distribution of TSS (total suspended solid) at high tide and low tide. The method used is survey method and determination of station point using purposive sampling. The results showed that the total suspended solid (TSS) distribution during tidal to low tide with the average value of the lowest TSS content at station 2 was 91 mg/l and the highest was in station 7 of 670 mg/l. At low tide, the average value of the lowest TSS content at station 1 is 65 mg/l and the highest is at station 6 of 448 mg/l.

This research was conducted from January to February 2017 in East Coastal of Riau Province. The main purpose of this study is to determine the distribution of sea surface temperature and determine the Thermal Front area.This research used spatial analysis method with Aqua Modis level 1 satellite image data processing. The software used is Modis Reprojection Tool Swath 2.2 and ArcGis 9.3. The result of this research is to know the distribution of sea surface temperature in east coastal waters of Sumatera Riau Province each month is different. Every month begins to decline from October to December.In October the temperature range foor 25-320C, in November is 24-320C and in December temperature is 22-320C.Thermal Front area results that are Each month detected differently based on the vulnerable sea surface temperatures SIED method wiht on a monthly basis. In October there are the eastern coast of Dumai, Bengkalis Regency, Meranti Islands, Estuary of kampar river and Indragiri Hilir Regency. In November there are on the eastern coast of Dumai and Bengkalis Regency. In December there are on East Coast of Bengkalis Regency, Kampar River Estuary and Indragiri Hilir Regency.

The main facility is a facility at a fishing port used for tied and docked vessels for fishing vessels as well as minimizing natural disruption and shipping safety. This research was conducted in December 2016 in Pakningasal Village, Bukitbatu District, Bengkalis Regency. The purpose of this research is to determine the type and size of the main facility of dock and port pool. Research method used in this research is survey method by doing direct observation. Data collection is done by collecting information about the main activities and activities that exist in the Marketing Place Fish Village Pakningasal. From the results of research conducted then required size for unloading pier is 9.89 m and length for loading area is 42,075 m so that the total length of the dock required is 51,965 m. The types and types that are being constructed with construction. The vast harbor pool area is 1321,71 m2 and the required depth of the pond is 1.3 m and it is recommended to mount the pool tour in swimming pool.

Increasing human activity in various sectors will contribute a pressure on mangrove ecosystems and cause of decreasing to mangrove species and it’s area. The inventory study and patterns of natural regeneration of mangrove seedling especially true mangrove in Northern Indonesia had been conducted in September 2015. It aimed to record the biodiversity in Indonesia and to know the shape of its distribution pattern. Collecting data of mangrove vegetation condition was done by transect line and plot. The line transect was drawn from the reference point (the outer mangrove stand) with the direction perpendicular to the coastline to the mainland and made plots according to the category. The results showed that mangrove vegetation in northern Indonesia found 4 species of natural seedlings, Lumnitzera littorea, Bruguiera cylindrica, Rhizophora stylosa and Xylocarpus moluccensis, those belonging to 3 families (Combretaceae, Rhizophoraceae and Meliaceae), in Station 1 dominated by seedlings B. cylindrica (62 individuals) and Station 2 dominated by X. moluccensis seedlings (8 individuals). Then the result of Morisita Index calculation showed that the distribution pattern of L. littorea, B. cylindrica and R. stylosa seedlings is classified regularly, while the distribution pattern of X. moluccensis seedling is clumped

Osteochilus melanopleurus or kalabau fish is indigenous fish of the Kampar River, Riau. The information on morphological and meristical characteristics of this fish, however, is almost none. To understand the morphological and meristical characteristics of the fish, a study has been conducted from April to September 2017. The fish was sampled using fish trap and nets (1.15 cm and 5 cm mesh size). Twenty one characteristics were measured using a Vernier calliper and then each character was compared to Standard Length (SL). There were 96 fishes captured, consist of 59 males (160-355 mm SL, 100-1800 g BW), 22 females (310-515 mm SL, 850-4000 g BW) and 15 juveniles (80 -180 mm SL, 11.50- 194 g BW). In general, there was no difference characteristics in male and female fish. The distance between mouth lip to pectoral fin was around 51% of SL; dorsal fin to pelvic fin was around 39% of SL; dorsal back to caudal bottom was around 28 % of SL and anal fin back was around 21 % of SL and TL was around 130% of SL. Meristical characteristics of fish are as follows: D. II. 151/2-191/2 ; P. I. 14-17; V. I.8; A.II.61/2; C.VI.6.II. The sex of juveniles, however, could not be identified as gonad in this young fish was not developed yet. Based on data obtained, it can be concluded that the relative growth of all characteristics measured were almost isometric to SL.

This study was conducted in 26 January to 26 February 2015, took place in the waters of Labuhanbatu District. This study aimed to determine the development of responsible fisheries in the waters of Labuhanbatu and can provide advice to the government on the policy of responsible/sustainable fisheries development in the conservation and sustainability of fishery resources. The results showed that in the waters of Labuhanbatu District are identified seven fishing gear : anchovies trawl (pekboat), tangkul (pengerih), longline bumper, Senangin gill nets, half gill nets, Toli shad gill nets and Heko shrimp nets. Irresponsible (unsustainable) fishing gear based on the FAO Code of Conduct is anchovy trawl (pekboat) which has a value of 1.77. While responsible (environmentally friendly) heko shrimp gill net (3.88), half gill nets (3.55), fishing gear are longline bumper has a value of 3.55, and Senangin gill nets (3.66 ). In Toli shad gill nets have a value of 3.44 which is environmental friendly but fish caught is protected species, and tangkul has a value of 2.66 also environmental friendly but the fishing line must be set as it’s not endanger the fishermen

Research on analysis resources bioeconomy anchovies rice has been implemented in August 2017 in waters Labuhanbatu North Sumatera. The purpose of this research to estimate Maximum Sustainable Yield (MSY) and Maximum Economic Yield (MEY), Effort Maximum Sustainable Yield (EMSY), effort Maximum Economic Yield (EMEY) and Effort Open Acces (EOA) resources anchovies rice in waters Labuhanbatu District. This research in a survey by analysis of data used the bioeconomy Gordon-Schaefer model. The result showed that the catch maximum sustainable (MSY) anchovies rice in waters Labuhanbatu District of 8,934.71 tons/years and Effort Maximum Sustainable Yield (EMSY) namely 47,379 trip/years, Maximum Economic Yield (MEY) anchovies rice namely 8,828.51 tons/years and Effort Maximum Economic Yield (EMEY) namely 42,213 trip/years and Effort Open Acces 84,427 trip/years. Profit level acquired while MSY Rp. 2,299,906.65 per years and MEY Rp. 2,334,868.58 per years. Based on analysis Gordon-Schaefer obtained model that production of actual anchovies rice in waters Labuhanbatu North Sumatera are still under the potential sustainable.