The NOAAS Chapman (R 446) was an American fisheries research vessel constructed by Bender Shipbuilding and Repair Company in Mobile, Alabama. Launched in December 1979 and delivered to NOAA in May 1980, she was commissioned into NOAA's fleet on July 11, 1980, at the Pacific Marine Center in Seattle. Chapman was designed for versatile marine research, featuring a 4-foot fixed-length boom capable of lifting 7,500 pounds, an A-frame with a 1,000-pound safe working load, and hydraulic winches with substantial line capacities for trawling and oceanographic sampling. She also carried a 16-foot fiberglass Boston Whaler boat powered by a gasoline motor. With a crew of 11 and capacity for six scientists, Chapman was operated by NOAA's Office of Marine and Aviation Operations. Her primary mission was fisheries and marine resource research, supporting NOAA's National Marine Fisheries Service (NMFS). She conducted extensive sampling of fish, crustaceans, larvae, eggs, and plankton across various regions, initially operating in the North Pacific Ocean and Bering Sea, where she notably surveyed king crab populations to aid fishery quota setting. In 1984, she transitioned to her new home port at Pascagoula, Mississippi, and for the remainder of her NOAA service, she focused on the Gulf of Mexico, Caribbean Sea, and western Atlantic. Her work included exploring the potential of underutilized stocks such as Gulf butterfish, squid, and herring, often utilizing satellite imagery data. Chapman contributed to innovative non-destructive reef fish surveys using fixed video cameras and fishery acoustic systems to locate spawning aggregations and characterize habitats, notably supporting the establishment of the Oculina Research Reserve. Throughout her service, she also dredged for scallops, trawled for cod, tagged striped bass, and collected oceanographic data from the Gulf Stream and Loop Current. She tested new fishing gear and sensors, and pioneered methods like remote-operated submersibles for gear observation. After nearly 18 years, she was decommissioned in 1998, replaced by NOAAS Gordon Gunter. Later, she served as a research vessel for the University of Puerto Rico before being acquired by Substation Curaçao in 2008. Refurbished as the mothership for the deep-diving submarine Curasub, she now supports scientific and tourist expeditions from Curaçao, featuring modifications like a 110-ton crane, a floating dock, and modular laboratories, supporting projects such as the Smithsonian's Deep Reef Observation Project.

This description has been generated using GPT-4.1-NANO based on the Vessel's wikidata information and then modified by ShipIndex.org staff.