Overwinter mortality and spring growth in selected and non-selected juvenile Mercenaria mercenaria
نویسندگان
چکیده
منابع مشابه
Geographic origin and culture method influence the overwinter mortality of juvenile hard clams, Mercenaria mercenaria (L.)
a Baruch College and Graduate Center, City University of New York, 17 Lexington Avenue, Box A0506, New York, NY 10010, USA b Department of Marine and Coastal Sciences and Haskin Shellfish Research Laboratory, Rutgers University, 6959 Miller Avenue, Port Norris, NJ 08349, USA c University of Maine at Machias and Downeast Institute, 116 O'Brien Avenue, Machias, ME 04654, USA d Rutgers Cooperative...
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Hobbyist and researchers often use commercially available phytoplankton concentrates to maintain filter feeding organisms held in their ornamental or experimental tanks. This study investigated the nutritional value of 10 products available commercially for juvenile hard clams, Mercenaria mercenaria. Growth and mortality rates in clams fed these products were compared with those found in clams ...
متن کاملComparative in situ and laboratory sediment bioassays with juvenile Mercenaria mercenaria.
Sediment toxicity assays were conducted with juvenile Mercenaria mercenaria to compare the results of laboratory assays and in situ deployments. Juvenile clams were deployed for one week at a variety of degraded and undegraded sites in Charleston Harbor, South Carolina. USA, during the summers of 1998, 1999, and 2000. Parallel laboratory assays were conducted with sediments collected from the d...
متن کاملEnvironmental salinity modulates the effects of elevated CO2 levels on juvenile hard-shell clams, Mercenaria mercenaria.
Ocean acidification due to increasing atmospheric CO2 concentrations results in a decrease in seawater pH and shifts in the carbonate chemistry that can negatively affect marine organisms. Marine bivalves such as the hard-shell clam, Mercenaria mercenaria, serve as ecosystem engineers in estuaries and coastal zones of the western Atlantic and, as for many marine calcifiers, are sensitive to the...
متن کاملPhotoreceptor Spike Responses in the Hardshell Clam, Mercenaria mercenaria
Spikes were recorded from single axons in the siphonal nerve of the hardshell clam Mercenaria mercenaria which respond to dimming of light. No axons were found to respond to the onset, or increase, of illumination. In a dark-adapted state there is little or no ongoing spike activity. The responsive area of a single axon is a circle of approximately 85 microm diameter on the inner siphon wall. T...
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ژورنال
عنوان ژورنال: Aquatic Biology
سال: 2010
ISSN: 1864-7782,1864-7790
DOI: 10.3354/ab00293