5th 2008 the Monterey Bay aquarium
was forced to release the one Great
White shark it had
in the aquarium because it was, "getting too frisky" for the aquarium
to handle. Here
is a link to see a video of the shark on youtube. Apparently, The
Monterey aquarium is the only aquarium
in the US that has ever had a history of housing great white sharks due
to the temperamental nature of the animals eating habits, and their
size. Believe it or not, there are Great White sharks located in the SF
bay, specifically off the coast of the Frallon Islands. The Aquarium
has plans to capture another Great white temporarily and release it
into the SF bay sometime in 2008.
Marine Acoustics is propsed to show at that time. The sound installation located there is meant to spur on further conservation efforts for great white sharks and other marine life off the coast of San Francisco as well as work as an experimentation in sound.
Pop-up archival tags (PAT)
These larger tags are designed to release from an animal at a pre-set time – such as 30, 60, or 90 days after the tag’s attached – and float to the surface. A tag then sends samples of its data to the polar-orbiting Argos satellite for about two weeks, the life of its battery. After the battery dies, the data survives so that if the tag is found, researchers can download the entire data set.
This tag is useful for animals that don’t spend a lot of time at the surface, and aren’t caught often.
It collects information about pressure (for depth of dives), ambient light (to estimate location), internal and external body temperature.
We've tagged quite a few white sharks with this tag. White shark researcher Sal Jorgenson of TOPP holds a pop-up tag in the photo above. That tag was attached to this white shark. He attached the tag by inserting a small surgical titanium anchor into the shark. (Do sharks notice when they're being tagged? Some flinch. Others show no reaction, says Sal.) On elephant seals, the tag is glued to the fur. Connecting the tag to the anchor is a thin line that loops around a metal pin at the base of the tag. This metal pin is connected to a battery. A clock in the tag turns the battery on at a preprogrammed time. When the battery turns on, the attachment pin dissolves. The tag floats to the surface and starts transmitting data to one of the Argos satellites. (info found on TOPP website).