Siahaan, Deasy Melina2013-02-012013-02-012013-02-01sumarnihttp://repository.unri.ac.id:80/handle/123456789/1843Analysis of Clostridium perfringens in Selat Baru held in May 2012 and analyzes were conducted at the Marine Microbiology Laboratory of Marine Science, Faculty of Fisheries and Marine Science, Riau University. The results showed that the amount of bacteria ranged from 3,0 x 103 to 1,1 x 107 cfu/ml. Given that the trend of the number of bacterial colonies on the surface of the waters of the most abundant in station 3. Rod-shaped cells or chains and gram-positive bacteria with negative test motility, positive catalase, positive H2S test and positive methyl red test. While the results of water parameters were 31oC temperature, depth 2.7 m, pH 6, salinity 25.66 ‰, brightness of 69.33 cm and flow velocity 0.11 m/sec.otherClostridium perfringensSelat Baruindicator bacteriastudent Paper Post Degree