If hard clam
hatchery seed were used as broodstock each generation, and each hatchery represented a closed population, we would expect a greater extent of differentiation between hatchery and wild stocks than observed here (e.
Knobbed and channeled whelks responded to extracts prepared from horseshoe crab eggs, and the former responded to horseshoe crab hemolymph diluted up to 133 times, as well as to extracts prepared from hard clam
Defenses of the hard clam
Mercenaria mercenaria against predation by the sea star Asterias forbesi.
Small hard clam
seed reared in a hatchery were spread over a shallow bottom which was covered with aggregate and protected by screens; the beds were less than an acre in size.
These results demonstrate for the first time the existence of geospatially distinct elemental compositions within distinct populations of hard clam
larval shell (Fig.
Developments in Aquaculture and Fisheries Science: Biology of the hard clam
The hard clam
Mercenaria mercenaria is relatively unique among cultured bivalves in that all aquacultured seed are hatchery produced, because wild seed are not sufficiently abundant to satisfy aquacultural demand.
Of the 9 species of batoids that inhabit the Chesapeake Bay during summer months, only 2 species--the cownose ray and the bullnose ray (Myliobatis freminvillii Leseur, 1824)--have grinding plates and jaw musculature potentially capable of manipulating and crushing oysters and hard clams
(Mercenaria mercenaria (Linnaeus, 1758)).
A mariculture demonstration project for an alternative hard clam
fishery in South Carolina: preliminary results.
Can hard clam
larval survival explain recruitment failure in Great South Bay: a modeling study?
ABSTRACT The northern quahog Mercenaria mercenaria, also known as the hard clam
, is an important aquaculture species in the United States.
ABSTRACT ACT A field experiment was conducted to compare the performance of different hard clam
(Mercenaria mereenaria) strains in local clamming waters of New York state.
farming in eastern Maine may help to diversify a wild shellfish industry that is currently in decline for most species except lobsters; however, additional efforts are needed to explore alternative grow-out sites and methods to enhance growth rates.
I conducted two experiments in Back Sound, NC, to examine the effects of water flow and juvenile density on hard clam
survivorship and growth.
KEY WORDS: northern quahog, Mercenaria mercenaria, hard clam
, legacy, latent effects, isochrysis, larval stock