Original sentence: At 725,000 sq km (280,000 sq mi), the AIHCA is the largest marine protected area in the USA.In 2005, about 80,000 sq km (30,000 sq mi) of seafloor around the Aleutian Islands were permanently closed to destructive fishing gears.New management approaches, including placing fisheries observers on vessels to observe what is happening with with protected species such as albatross and leatherback, loggerhead and green sea turtles, is expected to reduce incidental catch
Edited sentence: At 725,000 km2 (280,000 sq mi), the AIHCA is the largest marine protected area in the USA.In 2005, about 80,000 km2 (30,000 sq mi) of seafloor around the Aleutian Islands were permanently closed to destructive fishing gears.New management approaches, including placing fisheries observers on vessels to observe what is happening with protected species such as albatross and leatherback, loggerhead and green sea turtles, is expected to reduce incidental catch