Petersburg Pilot -

Sherry Tamone, a professor of biology at University of Alaska Southeast, held a virtual lecture this month as part of the Petersburg Science Series on her research in crab species in Southeast and the effect that warming sea temperatures has on their molt timing.

Crustaceans grow in size through a process called molting, said Tamone. Molting is when a crustacean sheds its exoskeleton and builds a newer, bigger one. The process begins when they're newborn larva and lasts through adulthood.

When it comes time for the Dungeness crab to molt, a crack will appear on its shell, allowing sea water to...