Oysters reproduce by releasing sperm and eggs into the water. Within six hours, fertilized eggs develop into larvae, which become fully shelled within 12 to 24 hours and are ready to attach themselves to a solid substrate within three weeks.Know More
Some species of oysters have separate sexes, but their reproductive organs contain both sperm and eggs. They are able to change sex from year to year. Some oysters are hermaphrodites and theoretically can fertilize their own eggs. When food is abundant, females are prevalent, but when food is scarce, there are more males. Spawning is temperature-dependent, and occurs at 68 degrees Fahrenheit. Females release millions of eggs at a time.
When an oyster larva is ready to settle, it grows a foot and finds a place to establish itself. Usually this is an adult oyster shell that is part of an oyster bed, but it might also be broken oyster or clam shells. The young oyster, known as a spat, cements itself to the new surface and slowly metamorphoses into an adult oyster. Oyster beds sometimes form reefs that create complex ecologies, stabilizing bottom sediment, creating breakwaters for shorelines, filtering and cleaning water and creating habitats for a great variety of marine wildlife, including barnacles, sea anemones, worms, crabs and an abundance of fish.Learn more about Marine Life
Live oysters should be consumed within a day or two of being purchased, but definitely before they die and spoil, while shucked oysters can generally be kept for about 4 to 7 days, as long as they are stored at temperatures below 35 degrees Fahrenheit to prevent bacteria growth. Do not consume live shellfish that have already died because dead shellfish can harbor a high concentration of bacteria that can cause disease.Full Answer >
Oysters often get moved around because of waves and other sea creatures. Oysters are unable to move on their own.Full Answer >
Oysters are most often found along the Atlantic Coasts and the Gulf of Mexico in North America. They live in estuaries, bays, tidal creeks and even in sounds. Oysters can survive in brackish- to full-strength seawater.Full Answer >
Oysters eat plankton, algae and small food particles that wash over their gills. Both oysters and clams use the same type of siphoning and straining system to remove food from the water around them.Full Answer >