The traps they are using south of the medicine line are not like that.
Somewhere I have the specs... Will see if I can hunt them down for you...
Cheers
Here is what I got, verbatim,
We don’t have a formal specifications documents since the traps have gone through a lot of iterative DIY
improvements over the years. Here are the basic measurements for the traps we use:
Trap Platform
189”X189”
--Single traps can list heavily when filled with animals, so we’ve bolted 3 traps together in a row
for increased stability and staff safety.
Platform deck 21” above water when empty
3 anchor lines secure traps in place
Chain link cage bolted onto trap platform:
84” tall walls
165” x 165” interior dimensions
12” wide walkway around exterior of each cage. Linked cages have a 24” wide corridor for access
between cages.
Trap Door
--Chain link panel that is secured open with an electromagnet. When a remote trigger is
pressed, current is cut to the magnet and panel drops via gravity, guided by a set of rails on
each side, trapping the animals inside the chain link cage.
84” tall
92” wide
43” tall opening for animal access when door is open and armed for trapping
Dog door. This is a smaller “back door” that is left closed while trying to trap animals, and is used to
transfer trapped animals to smaller cages for transport.
47” wide
47” tall
We’ve optimized a lot of other components over the years (see picture below). I’d be happy to answer
questions or dive more into the details of any specifics they’re interested in, so feel free to pass my
contact info along to your partners.
Our trap design works equally well for Stellers and Californias. Earlier in the program’s history when we
were only allowed to take Californias, various measures were tried (e.g. restricting the size of trap door
openings) to exclude Stellers, but they were pretty ineffective at targeting one species.