A movie of common dolphins swimming in an area where the depth decreases from 1000m to, 600m. Recorded the 27th of March 1993 by M. J. Addink; 39°.49'N 9°.43'W.
A movie of common dolphins swimming in an area where the depth increases from 38-64m, to 500m. Recorded the 10th of March 1993 by M. J. Addink; 15°.37'N 41°.29'W.