Profile updated on 30 June 2017
SCIENTIFIC NAME(s)
Mercenaria mercenaria
SPECIES NAME(s)
Northern quahog, Hard clam
COMMON NAMES
Hard clam
Northern quahogs Mercenaria mercenaria are bivalve molluscs found in the intertidal to subtidal zones of shallow, protected coastal embayments from the southern Gulf of St. Lawrence to the Gulf of Mexico. The northern quahog is an important species for both the commercial and recreational fisheries as well as for aquaculture purposes in Prince Edward Island. The management strategy of the quahog resource is largely based on the minimum legal size of 50 mm (Landry et al. 1999). At the same time, there is a growing concern regarding the sustainability of the clam industry and hence, an evolving interest in stock enhancement. Effective brood-stock management, however, requires basic information about the animal's reproductive biology (DFO 1996).
Canadian populations of Mercenaria deserve recognition as stocks distinct from the larger population of the U.S. Atlantic coast. Although the hard clam occupies a virtually continuous range from Florida to Massachusetts, its distribution north of Cape Cod becomes disjunct.
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Management Quality:
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NOT YET SCORED