. Commercial fisheries review. Fisheries; Fish trade. as Cape Hatteras, North Carolina, to as far south as the coast of the Guianas in South America. But it is abundant in only a few areas. Little is known of its biology, partic- ularly its reproduction and early life history, 3 Potential Commercial Areas Royal-red shrimp concentrations in the Gulf of Mexico were discovered in 1950. Since then, BCF's Exploratory Fishing and Gear Research Base, Pascagoula, Miss., has made periodic trawling surveys along the Continen- tal Slope from North Carolina to Brazil to evaluate the commercial potential.
. Commercial fisheries review. Fisheries; Fish trade. as Cape Hatteras, North Carolina, to as far south as the coast of the Guianas in South America. But it is abundant in only a few areas. Little is known of its biology, partic- ularly its reproduction and early life history, 3 Potential Commercial Areas Royal-red shrimp concentrations in the Gulf of Mexico were discovered in 1950. Since then, BCF's Exploratory Fishing and Gear Research Base, Pascagoula, Miss., has made periodic trawling surveys along the Continen- tal Slope from North Carolina to Brazil to evaluate the commercial potential. The re- sults indicate that three grounds off the coast support commercial quantities of royal- red shrimp: east of St. Augustine, Florida, in the western Atlantic; south-southwest of the Dry Tortugas in the Florida Straits; and southeast of the Mississippi River Delta in the Gulf of Mexico. How Catch Divided Preliminary records indicate the 1968 commercial catch of royal-red shrimp was less than 120,000 pounds (heads-off). Of this total, 53% came from the Mississippi River Delta area, 39% from off St. Augustine, and 8% from Dry Tortugas area. Soft Bottom, 8°-120 C. The distribution of royal-red shrimp is restricted to soft-bottom types and to water temperatures of 8° to 12° C. The highest shrimp concentration is in 9° to 10° C. water. Shrimp densities vary seasonally on all three grounds. Late summer and fall are periods of high density on the St. Augustine and Mississippi Delta grounds; late spring and summer for the Dry Tortugas grounds. Depth Distribution Varies Seasonally The depth distribution of shrimp also varies seasonally: the shrimp move offshore in summer and inshore in winter. Shrimp occur at 255 to 550 meters on St. Augustine grounds; 275 to over 550 meters on Dry Tor- tugas; and at 275 to over 550 meters on Mis- sissippiDelta area. Within each range, sea- sonal variation in concentration is consider- Please note that these images are extract
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