The ray that is pictured is a Paratrygon aiereba. The "apple" shaped disc is a characteristic of these rays. If you look closely, you can see the eyebrow-like markings which are also common among these rays.
It is unclear what rays are being caught in the video, but judging by the spikes at the base of one of the ray's tails, I would say that ray is also Paratrygon aiereba. That is assuming that the newly "described" rays do not develop the same spikes.
Here is an example of another Paratrygon aiereba's tail.
http://www.google.com/imgres?imgurl...1&ndsp=10&ved=1t:429,r:6,s:0&biw=1021&bih=405