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Clams Oysters and Scallops
Clams, oysters and scallops are bivalve mollusks native to both freshwater and saltwater habitats. Many are edible and some types of oysters produce the world’s freshwater and saltwater pearls. All questions about clams, oysters and scallops can be directed here.
1,488 Questions
What structure forms produces the shell of the clam?
According to my chemistry book (Chemistry: The Molecular Nature of Matter and Change by Silberberg) seashells including clam shells are primarily composed of Calcium Carbonate.
Are oysters high in cholesterol?
Previously oysters were thought to contain high amounts of cholesterol but now, since new methods of calculating cholesterol levels are more accurate, oysters have been removed from the restricted list. Oysters are naturally low in fat, sodium, and calories. They are also a very good source of high quality protein, polyunsaturated fatty acids, and iron. A three ounce cooked portion of oysters contains only 93 milligrams of cholesterol
Oysters are not only delicious, but they're also one of the most nutritionally well balanced of foods, containing protein, carbohydrates and lipids. The National Heart and Lung Institute suggest oysters as an ideal food for inclusion in low-cholesterol diets. Oysters are an excellent source of vitamins A, B1(thiamin), B2 (riboflavin), B3 (niacin), C (ascorbic acid) and D (calciferol). Four or five medium size oysters supply the recommended daily allowance of iron, copper, iodine, magnesium, calcium, zinc, manganese and phosphorus.
Animal Clam belong to which group?
Clams are part of the mollusk family.Clams are related to Oysters, squid and octopus.
The scallops swim by rapidly ejecting water from the mantle cavity by rapid clapping together (adduction) of the shell valves, which forces water out on either side of the hinge. Scallops usually swim in short bursts, but may cover several metres at a time.Scallops are one of only a few Molluscan groups that have the ability to swim actively, especially as a predator avoidance response. Argopecten gibbus, like most scallops, swims horizontally to the substratum by quickly adducting its valves to propel itself on jets of water. Examinations of shell morphometry in relation to swimming ability in scallops found that the relatively thinner shell and slight left convexity of the left (upper) valve generate more lift during swimming, and thus produce the long range swimming ability and speed of Argopecten gibbus, which may swim as much as 9 body lengths per second Small scallops tend to swim more actively than larger ones.
no gastropods are snails and slugs, oysters are bivalves as are scallops, muscles, and clams
Dark colored proteins breakdown causing the light red pigmentation of the shrimp (another protein) to show through.
What are some characteristics of the hard clams?
They are bi-valves (have two shells) Valves have three layers: a pearly, a prismatic, and a hard outer layer can form pearls, but they are irregular and worthless sorry, but that's all i know i'm not an expert
How many steamer clams in a pound?
a peck of clams could be considered anywheres between 15 to 18 pounds.
Whats the life cycle of a clam?
The egg and sperm is deposited into the water. The fertilized egg then becomes a free swimming larva, which then developes a shell in several months. It eats particles of the water and spits out sand that was also "eaten".
When oysters release larva, the larva travels with the water currents until they land on the bottom. Then they move by extending a muscle, like a foot, out of the front of their shell and drag themselves along the bottom until they find a resting spot. Once they find their resting spot they do not move again.
The weight of a bushel of clams will vary depending on the size of the clams, since the size affects how much they weigh and how many will fit into a bushel basket. The range for the weight of a bushel of clams is between 35 and 55 pounds.
It is commonly thought that clams have a muscular foot that they use to help them dig into the sand. The foot grasps deeper and deeper making its shell body move with it, and with this foot, they can almost completely bury themselves. However, this is not the case with all clams, especially since the foot, although muscular, does not have that much strength, judging by scientific measurements done on the strength of this muscle.
The razor clam, for example, actually creates quicksand around itself which helps it to burrow and sink down into the sand. It first creates an empty space in the sand below its foot, which it does by constricting valves within its shell. The water rushes into the empty space to fill it, making the sand softer. As the clam's muscular foot continues to churn the sand to dig down, it essentially creates a soft and slushy quicksand which is even easier for the clam to penetrate.
Are scallops from an oyster or clam?
Scallops come from sandy or muddy bottoms of most seas and oceans.
Do you have to boil sea shells in order to put into your fish tank?
It depends. If your fishtank is for salt water then no. But if it's for fresh water then yes
How do you keep a saltwater clam as a pet?
They usually eat whatever falls to the bottom, (I know I used to have 2 clams and an oyster in a tank with fish, an anemone and a starfish) they usually burry in the sand so make sure u have a lot of that avalible for them to burry in. They are usually salt-water (check with your supplier on this one)
Why are all pearls so exspensive?
There are several quality attributes that determine the value of a pearl. Pearl Type = South Sea cultured pearls are the most valuable, followed by Tahitian, akoya and freshwater. Pearl Luster = The quantity and quality of light reflected from the pearl. Surface/Nacre = The surface cleanliness and quality of the nacre. Shape = Round is the most valuable. Color = Color value depends on type of pearl. Size = The larger the pearl, if all other factors are equal, the more valuable it is.
How does vinegar affect a sea shell?
firstly they fizz. after 3 days a paste forms on top of the shell parts that are out of the vinegar, and around the liquid level of the bowl.
we removed the shells from the vinegar and compared them with untouched shells.
the vinegar shells were crumbly. we could break them with our hands, compared to the untouched shells which were still hard and shattered when dropped on the ground.
What is the function of umbo in clam?
The shell of a clam consists of two valves hinged together along the dorsal side (front). On the opposite end of where the clam opens is a swollen region (the umbo) where the shell of the clam starts to grow.
