The sex of a blue crab is determined by the shape of the "apron". The male apron, shown here, is shaped like a rocket. Females have either a "V" shape (immature) or a very wide apron with a small tip (mature.)

Image ID: line0806, NOAA's America's Coastlines Collection
Location: Maryland, Chesapeake Bay
Photo Date: 1999 July 25
Photographer: Mary Hollinger, NODC biologist, NOAA


Category: Coastline/Chesapeake Bay Maryland/

• High Resolution Photo Available