That news sorely disappointed oystermen and seafood packing companies that have pinned their hopes on the Asian oyster. Those efforts have shown mixed results over the last two decades. But, scientists said, part of the reason for their rapid growth was that sterile oysters put no energy into reproduction. Researchers in both states are raising sterile Asian oysters Crassostrea ariakensis and placing them in parts of the bay in highly controlled experiments, to find out how they grow, compete with native oysters, and whether they avoid disease and predation. However, disease kills farmed oysters as well as wild, and that is why there is strong interest in bringing in Asian oysters for aquaculture. The decision concludes a decade-long debate about whether an alternate species was needed for C.
Officials Rule Against Introducing Asian Oysters into Bay
Oysters do best where salinities range from 10 to 30 ppt; the range of 15 to 18 ppt is considered optimal. Native to the northeastern coast of North America, from the north shore of the Gulf of St. Best Malaysian Food Guide. Oysters are harvested by simply gathering them from their beds.
The resulting triploid oyster cannot propagate, which prevents introduced oysters from spreading into unwanted habitats. Eventually, rising demand exhausted many of the beds. Learn More in these related Britannica articles: In Virginia the opposing cultural forces were so strong that actual fission took place in with the admission to the Union of West Virginia along one of those rare interstate boundaries that approximate a genuine cultural divide.
We have to show success, and success will create more success and generate more funding. Because of disease, attempts to restore commercially viable populations of native oysters in the Chesapeake have been mostly unsuccessful. The bay's once thriving oyster population has been devastated over the past half century by overfishing, pollution and, most recently, parasites that have reduced annual harvests to 1 percent of historic highs. About Oceanus Magazine Letters to the Editor. Urged on by its seafood industry, Virginia has been growing sterilized batches of the Asian oyster in its portion of the bay for years to see how they fare. No further research with C. The decision was praised by environmental groups.