SHELLFISH is a culinary and fisheries term for exoskeleton -bearing
aquatic invertebrates used as food , including various species of
molluscs , crustaceans , and echinoderms . Although most kinds of
shellfish are harvested from saltwater environments, some kinds are
found in freshwater . In addition, a few species of land crabs are
eaten, for example
Despite the name, shellfish are not a kind of fish , but are simply
water-dwelling animals. Many varieties of shellfish (crustaceans in
particular) are actually closely related to insects and arachnids,
making up one of the main classes of the phylum
Familiar marine molluscs used as a food source by humans include many species of clams , mussels , oysters , winkles , and scallops . Some crustaceans commonly eaten are shrimp , lobsters , crayfish , and crabs . Echinoderms are not as frequently harvested for food as molluscs and crustaceans; however, sea urchin roe is quite popular in many parts of the world.
Most shellfish eat a diet composed primarily of phytoplankton and zooplankton .
* 1 Terminology
* 2.1 In Japan
* 2.2 In the
* 3 Around the world
* 4 Religious dietary restrictions
The term shellfish is used both broadly and specifically. In common parlance, as in having "shellfish" for dinner, it can refer to anything from clams and oysters to lobster and shrimp. For regulatory purposes it is often narrowly defined as filter-feeding molluscs such as clams, mussels, and oyster to the exclusion of crustaceans and all else.
Although the term is primarily applied to marine species, edible freshwater invertebrates such as crayfish and river mussels are also sometimes grouped under the umbrella term "shellfish".
Although their shells may differ, all shellfish are invertebrates. As non-mammalian animals that spend their entire lives in water they are "fish" in an informal sense; however the term finfish is sometimes used to distinguish fish as animals defined by having vertebrae from shellfish in modern terminology.
The word "shellfish" is both singular and plural; the rarely used "shellfishes" is sometimes employed to distinguish among various types of shellfish.
SHELLFISH IN VARIOUS CUISINES
Archaeological finds have shown that humans have been making use of shellfish as a food item for hundreds of thousands of years. In the present, shellfish dishes are a feature of almost all the cuisines of the world, providing an important source of protein in many cuisines around the world, especially in the countries with coastal areas. Sakura ebi
IN THE UNITED STATES
Lobster in particular is a great delicacy in the
Clamming is done both commercially and recreationally along the Northeast coastline of the US. Various type of clams are incorporated into the cuisine of New England . The soft-shelled clam is eaten either fried or steamed (and then called "steamers "). Many types of clams can be used for clam chowder , but the quahog , a hard shelled clam also known as a chowder clam, is often used because the long cooking time softens its tougher meat.
Chesapeake Bay and
In the Southeast , and particularly the gulf states, shrimping is an
important industry. Copious amounts of shrimp are harvested each year
Gulf of Mexico
In many major cities with active fishing ports, raw oyster bars are also a feature of shellfish consumption. When served freshly shucked (opened) and iced, one may find a liquid inside the shell, called the liquor. Some believe that oysters have the properties of an aphrodisiac .
Inter-tidal herbivorous shellfish such as mussels and clams can help people reach a healthy balance of omega-3 and omega-6 fats in their diets, instead of the current Western diets . For this reason, the eating of shellfish is often encouraged by dietitians. Shellfish, however, are a rich source of the amino acid taurine .
AROUND THE WORLD
Some popular dishes using shellfish:
RELIGIOUS DIETARY RESTRICTIONS
Main article: Jewish dietary laws
While estimates vary from shellfish, approximately 1% of the population is estimated to suffer from seafood allergy, which is more common in teenage and adult life than very early childhood. An estimated 20% will grow out of their allergy with time.
Some shellfish, such as whelk , contain arsenic . A sample of whelk was found to have a total content of arsenic at 15.42 mg/kg of which 1% is inorganic arsenic.
* ^ "
* Pawley, Andrew (2004) "Are crustaceans shellfish? A whiff of scandal in English lexicography" Australian Style, 12 (1):