No abstract

Bacterial communities of blood cockles (Anadara granosa) collected from wet market across Penang, Malaysia, were examined using a cultivation method. This study aimed to describe the major abundance of blood cockle bacteria and its relationship with different sampling locations. 16S rRNA gene analysis and culturable bacterial numbers were found to be slightly different between samples in two different locations potentially due to management, handling, transport and storage practices by the farmers, distributors and retailers. Results from this study indicated that most of bacteria found were typically present in blood cockles. The results revealed that there were slight similarities between sampling times; and slight differences on bacterial numbers between two different sampling locations. Based on the results, the blood cockle microbial communities comprised of members of the genera Klebsiella and Bacillus, which are greatly predominant, with highly dynamic of bacterial communities. Other bacterial genera found were E.coli, Vibrio, Pseudomonas, Staphylococcus and Micrococcus. The overall data demonstrated dynamic bacterial communities in blood cockles (Anadara granosa) and its diversity.

This article contains data on the bacterial communities and its diversity associated with Anadara granosa. The A. granosa samples were obtained from two major estuaries in Penang, Malaysia using a culture dependent and 16S rRNA Illumina sequencing approaches. A. granosa, a commercial blood cockles and popular seafoods, is fragile to the surrounding environments. Thus, our research focused to better understand the bacterial communities and it diversity in the A. granosa, as well as on the generation of a metagenomic library from A. granosa to further understanding on it diversity. The bacteria Vibrionaceae (34.1%) was predominant in the A. granosa from both environments followed by Enterobacteriaceae (33.3%) and Bacillaceae (16.75%). Vibrio sp., Klebsiella sp., and Bacillus subtilis were the most abundant species present. The data generated in this research is the first metagenomic examination of A. granosa and will provide as a baseline to understand the bacterial communities associated with A. granosa and its surrounding natural environments.

The diversity of microbial communities associated with oysters within a commercial mariculture system was examined using molecular analysis of 16S rRNA Illumina sequencing. The aim of the study is to identify microbial diversity using molecular-based techniques, and compare the results obtained using three sampling points. Results showed, the microbial diversity associated with farmed oysters was dominated by Vibrio spp., Photobacterium spp., and Pseudoalteromons spp., while Psychrilyobacter spp., Prolixibacter spp., Cytophaga spp., Planococcus spp., and Exiguobacterium spp. were minor in abundance. These findings provide valuable information on the microbial community, demonstrating the microbial diversity in oysters and its major abundant species.

The potential use of prodigiosin as a shrimp feed additive and its dynamic influence on the shrimp gut microbial communityan in vitro gut model