Document Type : Research Paper
Department of Marine Biology, Faculty of Marine Science, University of Hormozgan, Bandar Abbas, Iran
Department of Biology, Faculty of Science, Shahid Bahonar University of Kerman, Kerman, Iran
The environment microbial flora plays important role in the formation of the fish microbial flora. The purpose of this study is study the variation in the quantity of crude oil degradation and heterotroph digestive microflora in four species of Gobiiformes in the Persian Gulf in the warm and cold seasons. The sampling of the Gobiidae was performed in five regions of the Persian Gulf. The density of bacteria was performed using the colony forming unit and most probable number methods. The results showed that the highest value of heterotroph bacteria in the warm season is related to Periophthalmus waltoni with the value of 6×108. The amount of cultivable crude oil degradation and heterotroph bacteria available in the warm season was more than in the cold season in all investigated area is. intestine microflora of the Scartelaos tenuis accumulated from the Hasineh region has the highest value. Therefore, it can be concluded that the uncultivable bacteria in the S. tenuis is higher than P. waltoni. The results of this study confirm that an appropriate understanding of the variation in the population of the Gobiidae microflora is important in performing ecological researches on these valuable aquatic creatures in the ecosystem.