00:00Great, so thanks for having us on board today, Cam. What are we doing today?
00:12Yeah, kia ora Tash, great to have you on board. So today we're going to do some
00:16monitoring of Tapawai Marine Reserve and we're going to do that using our BUV,
00:21so that's baited underwater video frame here. Oh fantastic, I can see we've got
00:26the camera up there, do you want to tell us a little bit about that? Yeah, so working our
00:29way through the frame, we've got this aluminium frame that holds everything
00:33together, keeps the GoPro camera positioned above the bait box and it
00:39keeps it looking down. Oh great, so is this for measuring? Yeah, so along the
00:45bottom is our scale bar, so those black and white stripes, once we've recorded the
00:49high-definition footage on the GoPro and we're looking at it afterwards, it lets
00:53us determine or help measure the size of the fish. Yep, so I can smell something
00:58really bad coming out of the bait box. Yep, that's right, so this orange box down
01:02here is the bait box, so we use pilchards and to keep our scientific method
01:08kind of standardised, we always use pilchards. We use 300 grams, that's like
01:13three to four fish that we cut up into little pieces and it goes in the bait box.
01:18I'm pleased you've done that job for me already. Yeah, yeah, so it does get a bit
01:22stinky and every camera drop, we use three more fish so that there's really good...
01:27So it's consistent? Consistent and there's a good smell underwater to attract those fish in.
01:33Great, so is it ready to go in? Can I help you do that? Pretty much, absolutely, we'll
01:37just go over some of the other bits. So yeah, we've got this float here, that's
01:41attached to the top of the frame and that keeps the frame sitting upright
01:45underwater, so it will sink all the way to the bottom, that'll keep it upright and
01:50then this line here with the big orange float comes all the way back to the
01:55surface and that lets us pick it up. Great, so do we only, do you only deploy the
01:59BUV within the marine reserve? So no, we also do sites outside the reserve, so they're
02:05like our control sites, so that way we can compare the fish size and abundance in
02:12the reserve versus outside the reserve. Yeah, so that's a really important part of
02:17the scientific method is to get that data from outside the reserve. So before we
02:21drop the camera over the side, we've got a data board that we fill in, gives us our
02:26date, what time it is, which site we're recording, that's probably the most
02:30important one so we know which bit of footage relates to which site afterwards.
02:35So it's pretty easy, we start the recording on the camera, hold the data board
02:40under, make sure it's recording and it can see the data board, and then we are good to deploy.
