Edward G. McCoy

Brown shrimp (Penaeus aztecus) were marked with injections of biological stains and fluorescent pigments and released in the Swan Quarter Bay tributary of Pamlico Sound, North Carolina, to obtain population dynamics information including movement, migration, growth, and mortality. From July to September, 1967,6,163 shrimp were marked and released. Of these, 1,030 (16.7%) were returned. The average interval between release and recapture was 12 days, and the average distance traveled during this time was 3 miles. Only one shrimp was recaptured in the Atlantic Ocean. These data do not clearly...

Pink or spotted (Penaeus duorarum) , brown (P. aztecus) , and white (P. setiferus) shrimp, marked with biological stains and fluorescent pigments, were released in nursery areas tributary to the Core Sound and Lower Cape Fear River estuaries in Nor·th Carolina to obtain information concerning population dynamics including movement and migration patterns. A combined total of 26,989 pink, brown, and white shrimp was marked and released from April to October, 1966. Of these, 1,671 or 6.2% were returned. The combined average interval between release and recapture was 17.5 days, and the average...

Clay, loam, silt, and sand soil samples collected from dredging sites in Albemarle Sound were suspended in solutions of sea water varying from 0 to 25 per cent sea strength. Sedimentation rates were obtained by measuring the amount of light transmission through each solution as described by Coggin, 1960. Test suspensions were placed in a wind tunnel to determine the effect of wind action on sedimentation rates. Except for sand, no appreciable sedimentation of the suspended soils occurred in the zero concentrations of sea water during the entire test period. Rapid sedimentation of the...