The word coquina is a geologic term of Spanish origin for a limestone composed chiefly of shells.
Giftigkeit: Vergiftungsgefahr unbekannt.
, This species lives from the intertidal zone of sandy beaches to a depth of 11 m.. The living animals can often be seen where the waves wash the sand around in the most shallow part of the littoral zone as the tidal level changes. Beach nourishment, a process in which sand from an outside source is used to replace eroded beach sand, is a method used to mitigate the effects of erosion. In the southeastern US they are known as "coquina", a word that is also used for the hard limestone concretions of their shells and those of other marine organisms. Corrections? Our editors will review what you’ve submitted and determine whether to revise the article. They migrate up and down the shore by floating with the waves and then rapidly burying themselves with their strong foot. This species occurs on the east coast of the United States, from Cape May, New Jersey to Florida including East Florida, West Florida and the Florida Keys. The coquina clam (Donax variabilis) is a common inhabitant of Florida's sandy beaches. Omissions? Haltung im Aquarium: Berichte über eine erfolgreiche und längerfristige Haltung fehlen bisher. Coquina clams are edible and are used in broths and chowder.  This Donax species, known for its periodic population explosions, was eaten by Native Americans in Southern California, particularly the Luiseno and Kumeyaay Indians of San Diego County. Its shell is wedge-shaped and varies widely in colour from white, yellow, and pink to blue and mauve.
 The exterior of the small shell of this species can have any one of a wide range of possible colors, from almost white, through yellow, pink, orange, red, purple, to brownish and blueish, with or without the presence of darker rays. Let us know if you have suggestions to improve this article (requires login). This species is found on the Pacific coast of North America. The coquina clam (Donax variabilis) is a common inhabitant of Florida's sandy beaches. It is native to the Mediterranean and Atlantic coasts of western Europe. Florida Youth Conservation Centers Network, Florida Department of Health seafood safety guidelines, Florida Department of Agriculture and Consumer Services website, See a full list of our Social Media accounts. Are you a supplier of Donax clams?  It is locally known as tellin, tellina, telline or "tenille" in France, tellina or arsella in Italy, tellina or coquina in Spain, conquilha or cadelinha in Portugal and Um El-Kholol in Egypt and is consumed as a food in these countries. Some species, such as Donax variabilis, migrate vertically and horizontally with changes in the tides. Copyright 1999 - 2020 State of Florida. https://www.britannica.com/animal/coquina-clam, Discoverlife - Donacidae (Donax, Coquina Clams). A very similar shellfish in Australia is locally known as "Pippies". Because of their sensitivity to environmental changes, indicator species can act as an early warning system for biologists.
The shells are relatively thick, and wedge-shaped, with a polished periostracum. It is a warm water species which occurs in shallow water on sandy beaches on the east coast of the United States. These algae filter-feeders are a critical food source for fish, crabs and shorebirds. Its shell is wedge-shaped and varies widely in colour from white, yellow, Species of Donax live, sometimes in high concentrations, vertically aligned in the sand on exposed beaches, on tropical and temperate coasts worldwide. Some people collect the colorful shells to use for crafts. Coastal erosion is a major issue along Florida’s coastline, especially in the wake of tropical storms and hurricanes. They conducted field sampling programs in Pinellas County on Florida’s west coast and Indian River County on the east coast to record patterns in the abundance of coquina clams and mole crabs in the swash zone and ghost crabs along the upper beach on nourished and un-nourished beaches.
They are called "Chip Chip" in Trinidad & Tobago and "Chipi Chipi" in Venezuela. The clam is a nimble surf-rider, with the capability of using its foot to leap out of the sand and ride an in-bound wave using its foot and extended syphons much like a "sail" (Marchant, 2000). Donax clams have a two-part shell. Donax m [von griech.
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