Ví dụ về oyster

• More importantly, the strong host response produced by oysters against parasites seems to be the principal factor structuring metazoan parasite communities of oysters.

• The host response against parasites is suggested as the principal factor responsible for depauperate parasite communities of oysters.

• Each tray was split into two parts and contained 100 oysters from two different families.

• After inoculation, both challenged and control oysters were left overnight, out of seawater, to promote retention of the parasites, and then returned to seawater.

• Copepods were rinsed in filtered sea water and were directly added in tanks containing uninfected oysters.

• We therefore cannot assume that experimental conditions were optimal for transmission of the parasite from oysters to copepods.

• The dead oysters were found to have light to moderate infection.

• Four oysters out of 90 died among the challenged group but no mortality was observed among the control group.

• Comparable results were seen for individual oysters with medium supplemented at 0.03 mg/ml (data not shown).

• In fact, oysters and many other kinds of shellfish are said to be larger at the time when the moon is waxing.

• The metazoan parasite communities of all four oysters species were dominated by allogenic species.

• Many types of seafood, especially oysters, shrimp and the other crustaceans are often eaten raw or undercooked.

• Changes were corrected using associated determinations within control pots without oysters.

• In this study, the monitored oysters were too young to experience significant parasite pressure.

• Genetic di ersity of selected flat oysters following this bottleneck.