Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Ecologist Carrie Blakeslee conducting studies to determine the upper temperature tolerance of juvenile American shad. Shad are more active at night and sensitive to human handling so studies are conducted in the field after dark.
Public Domain.
