Salmon cannons

[Fish Camp]

they made a trap so the salmon just swim into the tube and launched out the top.[video]https://www.google.ca/url?sa=t&rct=j&q=&esrc=s&source=video&cd=7&ved=0CDEQtwIwBg&url=http%3A%2F%2Fwww.cbsnews.com%2Fnews%2Fsalmon-cannon-system-helps-transport-fish-upstream%2F&ei=QBS3VPLHFYyfyATJ6IBI&usg=AFQjCNH6Wy6USXecupqxGKOgrqb8iVE_FQ&sig2=Em8cBSQf4HSYqofPqHmdqw

 

[Fish Camp]

[video]https://www.google.ca/url?sa=t&rct=j&q=&esrc=s&source=video&cd=3&ved=0CCUQtwIwAg&url=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DkIC S32kady4&ei=Dhi3VN3BFcSxyAS-_oCoBA&usg=AFQjCNHZMJI61uqM6abH6iHzvsfzF4374A&sig2=if-6VA6YCaZseLi_NNzFiQcool stuff[video]http://www.nrcresearchpress.com/doi/abs/10.1139/f92-129#.VLctFSvF_GY we shouldn't bring the fish out of the water unless to keep it.