A note on a spawner--recruit relationship for a heavily exploited bivalve: the case of northern quahogs (hard clams), Mercenaria mercenaria in great south bay New York.

From: Journal of Shellfish Research | Date: December 1, 2005| Author: Buckner, Stuart; Kraeuter, John N.; Powell, Eric N. | Copyright information

ABSTRACT The Town of Islip, NY has collected a long-term data set (1977-2004) on northern quahog (hard clam), Mercenaria mercenaria, abundance. The data comprise approximately 350 duplicate 1 [m.sup.2] samples each year taken with a clam shell bucket. All samples were sieved through a 6.4 mm sieve and the hard clams enumerated by size. In addition, clam landings data for the town waters are available for the same time period. Clam populations have declined from their peaks in the 1...

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