Abstract：
:Bacterial disease is a significant issue for larviculture of several species of shellfish, including oysters. One source of bacteria is the seawater used throughout the hatchery. In this study carried out at a commercial oyster hatchery in Tasmania, Australia, the diversity of the bacterial community and its relationship with larval production outcomes were studied over a 2-year period using terminal restriction fragment length polymorphism and tag-encoded pyrosequencing. The bacterial communities were very diverse, dominated by the Alphaproteobacteria, Gammaproteobacteria, Flavobacteria and Cyanobacteria. The communities were highly variable on scales of days, weeks and seasons. The difference between the intake seawater and treated clean seawater used in the hatchery was smaller than the observed temporal differences in the seawater throughout the year. No clear correlation was observed between production outcomes and the overall bacterial community structure. However, one group of Cyanobacterial sequences was more abundant when mass mortality events occurred than when healthy spat were produced although they were always present.
journal_name
Microb Ecoljournal_title
Microbial ecologyauthors
Powell SM,Chapman CC,Bermudes M,Tamplin MLdoi
10.1007/s00248-013-0183-6subject
Has Abstractpub_date
2013-08-01 00:00:00pages
245-56issue
2eissn
0095-3628issn
1432-184Xjournal_volume
66pub_type
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