For the story of how I capture video and some beautiful still images of this otter eating its fish, you can read and view pictures here.
North American River Otter eating sashimi
The experiment in kayak videography continues. The sound disappears part way through the movie, as one of my experiments turns out to be a big fail (best not to go into details, just know that lesson learned.)
Enjoy this video of the North American River Otter devouring a big fish on Tomales Bay.
Still figuring out the bet way to steady the camera for shooting. I am also combating the noise of the image stabilizer built into the lens. I thought I had a solution, but instead I lost the sound a few minutes into filming. Also, the image stabilizer can cause a strange jerkiness as it jumps from stabile position to stabile position. It might work better when it is in the mode for panning. That will be one of the next experiments.
To update on the species of fish. It is a Striped surfperch (Embiotoca lateralis)
Galen Leeds Photography 
I wouldn’t have thought that the otter would have eaten such a big meal! What kind of fish??? Great camera, fun to see this kind of action.
Thanks! I’ve emailed a few of my marine biologist contacts so that I positively know what type of fish, but I am assuming it is a type of perch. I was surprised myself by how much of it the otter was able to put away.
Wonderful close up. How far away were you?
I was generally between 4-10 meters from the otter, drifting in and out from the breeze and the water currents