Diseases
"Dermo" (Perkinsus marinus) is a marine disease of oysters, caused by a protozoan parasite. It is a prevalent pathogen of oysters, causing massive mortality in oyster populations, and poses a significant economic threat to the oyster industry.
"MSX" (Haplosporidium nelsoni), another protozoan, was first described along the mid-Atlantic coast in 1957. Mortalities can reach 90% to 95% of the oyster population within 2 to 3 years of being seeded. MSX slows the feeding rates of infected oysters, leading to a reduction in the amount of stored carbohydrates, which in turn inhibits normal gametogenesis during spawning, resulting in reduced fecundity.
Read more about this topic: Eastern Oyster
Famous quotes containing the word diseases:
“A fiction about soft or easy deaths ... is part of the mythology of most diseases that are not considered shameful or demeaning.”
—Susan Sontag (b. 1933)
“Even diseases have lost their prestige, there aren’t so many of them left.... Think it over ... no more syphilis, no more clap, no more typhoid ... antibiotics have taken half the tragedy out of medicine.”
—Louis-Ferdinand Céline (1894–1961)
“But what is quackery? It is commonly an attempt to cure the diseases of a man by addressing his body alone. There is need of a physician who shall minister to both soul and body at once, that is, to man. Now he falls between two stools.”
—Henry David Thoreau (1817–1862)