by Roger Roth, 1994
This was one of Roger's earlier films, and it has been trimmed from
the original 19 minutes down to 10 miutes for SEA-Inside: Pacific
the mention of phosphorescent particles on the sharks' snouts and
attributed to squid is at least partly erroneous. A marine
scientist from the Pacific Shark Research Center said that it was
likely to be bioluminescence, not phosphorescence. He also said
that while there are bioluminescent squid in the deeper waters off the
California coast, the blue sharks are unlikely to feed on them.
So what explains the glowing on the sharks' snouts?
QUESTION: Why is this film about diving off Santa Catalina
included in a show
about the Pacific Northwest? Good Question!!!!
The Pacific Northwest is the theme of this show. Another theme
of this show is to recognize that classifications are often inexact and
overlapping. While one could define the Pacific Northwest in a
number of ways, for the purposes of this show, we are interested in the
biota of the northern coasts of the Eastern Pacific. Currents
create a boundary of sorts at Pt. Conception, just north of Los
Angeles, and many of the same creatures are seen from Alaska to Pt.
Conception. However, that boundary is somewhat blurry as some of
the creatures we're used to seeing are found as far south as Baja
California or even South America.
But that's just rationalizing. In fact, it's instructive to
have a look at our neighbors, even if they do have different biota, or
are distant neighbors. In future episodes of SEA-Inside: Pacific
Northwest, we will occasionally visit some of our distant aquatic
neighbors in the mid-west and even in the Northwestern Atlantic Coast.
Roger Roth -
Underwater filmmaker, founder & director of the international,
non-profit Underwater Images
Roger Roth is a former science teacher and has been diving and filming underwater since 1988. He's earned nine international gold medals for underwater video production and has authored dozens of educational videos for schools and educational outreach programs around the world. A partial client list for Roger includes the Discovery Channel, the U.S. Navy, the Nature Conservancy, Save the Manatee Club, Aggressor Fleet, Ltd., MV FeBrina and Walindi Plantation in PNG, Loloata and Tufi Dive Resorts in PNG, Peter Hughes’ Star Dancer, Jean-Michel Cousteau and the Ocean Futures Foundation.
ROGER ROTH Underwater Video Productions
rroth2 at cinci.rr.com
10632 Cinderella Dr.
Cincinnati, Ohio 45242
If SEA-Inside: Pacific Northwest isn't scheduled to show on your local pubic access TV station, contact them to learn their submission requirements, then email to INFO at SEA-INSIDE.ORG