White sturgeon sutured in San Joaquin River

A man sews a suture on the underside of a fish being held in a river.

White sturgeon sutured in San Joaquin River

Supervisory Fish Biologist Austin Demarest of the Lodi Fish and Wildlife Office sutures a white sturgeon after implanting a small tracking tag in its abdomen. Sturgeon enter a state of paralysis known as tonic immobility when turned on their backs.
Image
Photo By/Credit
Brandon Honig/USFWS
Ecosystem
River/stream
Species
Media Usage Rights/License
Public Domain
Subject tags
Anadromous fish
Fish passage
Fishes
Rivers and streams
Tracks and tracking