DESCRIPTION: The longfin smelt is a medium-sized fish, usually growing to about 10 centimeters as an adult. It is translucent silver on the sides and olive to iridescent pink on the back. Its most ...

Delta smelt are tiny fish — most adults are less than 3 inches long — and nearly translucent, with a steely-blue sheen on their sides. As larvae, they start out eating microscopic food like ...