Open Access. Powered by Scholars. Published by Universities.®
- Institution
- Keyword
- Publication
Articles 1 - 6 of 6
Full-Text Articles in Life Sciences
Hard Clam Mercenaria Mercenaria, G. Curtis Roegner, Roger L. Mann
Hard Clam Mercenaria Mercenaria, G. Curtis Roegner, Roger L. Mann
VIMS Books and Book Chapters
The hard clam is found along the eastern coast of North America from the Gulf of St. Lawrence to Texas. In Chesapeake Bay, the hard clam is restricted to salinities above approximately 12 ppt. An extensive survey of hard clam resources is overdue.
Statements concerning long term trends in populations are not feasible. Hard clams ·grow to a maximum shell length of about 120 mm. There are few documented cases of diseases in wild hard clam populations. Parasitic infestations are also slight. The life cycle of the hard clam includes a pelagic larval phase and a relatively sedentary benthic juvenile …
Spring 1991, Nsu Oceanographic Center
Fall 1991, Nsu Oceanographic Center
Summer 1991, Nsu Oceanographic Center
Winter 1991, Nsu Oceanographic Center
Hypothetical Northern Spawning Limit And Larval Transport Of Spot, Brenda L. Norcross, Deborah A. Bodolus
Hypothetical Northern Spawning Limit And Larval Transport Of Spot, Brenda L. Norcross, Deborah A. Bodolus
VIMS Books and Book Chapters
The exact northern limit of the spawning grounds of spot (Leiostomus xanthurus) has not been determined. Previous reports of spot spawning during the winter/spring in the Middle Atlantic Bight (MAB) are refuted based on the presence of low bottom-water temperatures at that time. Analyses of historic bottom isotherms in the MAB during winter/spring show that the most northerly occurrence of required 17° C bottom temperatures from December to May is on the outer continental shelf off North Carolina near the Gulf Stream. It is therefore suggested that spot recruiting to Chesapeake Bay are spawned near Cape Hatteras at the shelf …