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Full-Text Articles in Life Sciences
Nursery Exposure Of Oyster Spat To Different Predators Strengthens Oyster Shells, Melanie Ponce, Benjamin Belgrad, William Walton, Lee Smee
Nursery Exposure Of Oyster Spat To Different Predators Strengthens Oyster Shells, Melanie Ponce, Benjamin Belgrad, William Walton, Lee Smee
Gulf and Caribbean Research
No abstract provided.
Morphological Characteristics Of Early Life History Stages Of The Blue Crab, Callinectes Sapidus Rathbun, From The Northern Gulf Of Mexico With A Comparison Of Studies From The Atlantic Seaboard, Kenneth Stuck, Harriet Perry, Darcie Graham, Richard W. Heard
Morphological Characteristics Of Early Life History Stages Of The Blue Crab, Callinectes Sapidus Rathbun, From The Northern Gulf Of Mexico With A Comparison Of Studies From The Atlantic Seaboard, Kenneth Stuck, Harriet Perry, Darcie Graham, Richard W. Heard
Gulf and Caribbean Research
Zoeae, megalopae, and early crab stages of Callinectes sapidus Rathbun, 1896 were described from the northern Gulf of Mexico (nGOM). Observations during this study were based on larvae reared in the laboratory through the early crab stages and on megalopae and early crab stages collected in the wild. Gulf of Mexico data are compared with similar information for the southeast Atlantic coast of the United States. Size and setation of C. sapidus larvae reared from nGOM stocks were different than those in published descriptions of larvae reared from Atlantic populations. Seasonal differences in size were noted in both reared and …
Size-Specific Emergence Of The Marsh Snail, Littorina Irrorata: Effect Of Predation By Blue Crabs In A Virginia Salt Marsh, Hilary S. Stanhope, William C. Banta, Michael H. Temkin
Size-Specific Emergence Of The Marsh Snail, Littorina Irrorata: Effect Of Predation By Blue Crabs In A Virginia Salt Marsh, Hilary S. Stanhope, William C. Banta, Michael H. Temkin
Gulf and Caribbean Research
Marsh periwinkles of 5 to 7 mm in shell height were eaten regularly by blue crabs. Fractures marking unsuccessful crab attacks were present in about 25% of medium-sized (10-16 mm) snails and over 60% of larger snails (over 16 mm). Medium-sized snails, subject to predation, leave the water more frequently than larger snails, but only about a quarter of the snail population leaves the water during high tide. We found no evidence that the snails leave the water because they sense blue crabs in the water.
The Blue Crab Fishery In Mississippi, Harriet M. Perry
The Blue Crab Fishery In Mississippi, Harriet M. Perry
Gulf and Caribbean Research
Analysis of 670 trawl, seine and marsh net samples collected from July 1971 through June 1973 provided data on the distribution and abundance of blue crabs in Mississippi Sound. Highest average catches were associated with salinities between 5.0 and 15.0 ppt (parts per thousand) and temperatures between 20.0 and 25.0oC.
Young crabs congregated in dredged navigational channels and in the marshes that fringe the bays and coastline. Maximum numbers were captured over soft mud bottoms.
Peak numbers of zoeae occurred in the summer and fall. Megalopae were collected in all months. Early crab stages appeared throughout the year. …