Threespine Stickleback in Alaska

For more information look at pages 196 and 197 in the Nature of Southeast Alaska You can also read /sites/default/files/Threespine%20sticklebacks.pdf For some good information on Threespine Stickleback in Alaska look at Stickleback–Juvenile Sockeye Salmon...

Male Stickleback Protects the Nest

This video was taken in a small stream near Mendenhall Glacier in Juneau, Alaska. A male threespine stickleback builds a nest by sucking up sand or mud and depositing it away from from the construction site. In the resulting depression he glues together pieces of...

Threespine Stickleback

The threespine stickleback gets its name from the three spines located just in front of its dorsal fin. Two forms of threespine stickleback occur in Alaska–marine and freshwater. The marine form lives in the sea for most of its life, migrating into fresh water...