Subtidal hard clam, Mercenaria mercenaria (Linne) resources in coastal Georgia
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Subtidal hard clam, Mercenaria mercenaria (Linne) resources in coastal Georgia

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Published by University of Georgia, Marine Extension Service in Savannah, Georgia .
Written in English

Subjects:

  • Northern quahog -- Georgia -- Atlantic Coast.,
  • Clam fisheries -- Georgia -- Atlantic Coast.

Book details:

Edition Notes

StatementRandal L. Walker, Mac V. Rawson.
SeriesTechnical report -- no. 85-1., Technical report series (Georgia Marine Science Center) -- no. 85-1.
ContributionsRawson, Mac V., University of Georgia. Marine Science Center.
The Physical Object
Paginationiv, 164 p. :
Number of Pages164
ID Numbers
Open LibraryOL16108122M

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The hard clam, Mercenaria mercenaria, is an important commercial, recreational and ecological inhabitant of coastal bays along the east and gulf coasts of the United States. This title represents the first state of the art summary of existing knowledge of the hard clam . The hard clam, Mercenaria mercenaria, is an important commercial, recreational and ecological inhabitant of coastal bays along the east and gulf coasts of the United States. This title represents the first state of the art summary of existing knowledge of the hard clam by experts in various ning a compendium of literature on the hard clam, comprehensive chapters 5/5(1).   Infaunal hard clams (Mercenaria mercenaria) are cultured in the shallow subtidal regions of the estuary (∼ m to 1 m, below mean low water). Approximately million cultivated clams inhabit the private shellfish leases across the km 2 embayment at any given time. Juvenile clams (8–15 mm), reared in land‐based hatcheries and Cited by: The hard clam, Mercenaria mercenaria, shows a general response to environmental variation and molar ratio of free taurine to glycine in gill and mantle tissues climbs above 3, while α-amino acids and carbohydrates by:

Clams have slow growth rates and can live years on average, and up to 40 years. Adults are sessile – they stay in one place – and inhabit both intertidal and sub-tidal areas. Clams burrow into the sediment, leaving only their siphons expose to feed. Hard clams prefer saline water and cannot survive if the salt content is too low. Species Description. Hard clams (see also soft-shell clams) Ocean quahog or mahogany clam Arctica islandica Atlantic surf clam or hen clam Spisula solidissima Cherrystone, littleneck, or quahog Mercenaria mercenaria Razor clam Ensis directus. Wild. Aquaculture of hard clams in Maine is limited to two farms growing Mercenaria, and remains a focus of research on: Orono, , ME. Mercenaria mercenaria has a thick shell, roughly triangular in shape overall, light brown to grey in colour with a violet border and often with varying concentric bands on the shell. These concentric bands are conspicuous and are closely spaced around the margins but more widely spaced around the umbo. The inner shell surface is shiny with a purplish-blue tinge around the . Hard clam seed ( mm size) typically cost from USD /1 The supply can be variable and many growers buy from multiple sources to hedge delivery times and supplies. Others buy smaller seed and operate their own nursery systems to grow the seed to planting size.

The hard clam, Mercenaria mercenaria, is an important commercial, recreational and ecological inhabitant of coastal bays along the east and gulf coasts of the United States. This title represents the first state of the art summary of existing knowledge of the hard clam 5/5(1). Mercenaria mercenaria are referred by different names depending on their size. In the order of largest to smaller, these clams are called: Quahogs (Chowderhogs), Cherrystones, Topnecks, Littlenecks, and Countnecks. This species is found in the sand and mud habitats of the intertidal and sheltered subtidal hard mud and sand. resources, such as the hard clam Mercenaria mercenari a. Over shell middens have been documented on St. Catherines Island, and hard clam shells are usually. Mercenaria mercenaria, the hard clam or northern quahog, is a species of great ecological, economical, and cultural importance to many areas of the .