|Spotted dolphins |
(Photo: M. Kaplan; NMFS permit #15530 to CRC)
Yesterday's low sightings numbers were more than made up for by this morning. Not 15 minutes after leaving the harbour did we catch a group of pilot whales, followed shortly by a few bottlenose dolphins (Tursiops truncatus). An hour later we came upon rough-toothed dolphins (Steno bredanensis), and then, a large group of spotted dolphins (Stenella attenuata). In total, we had 9 sightings today of these four species while travelling 126 km.
|Spotted dolphin with a "cookiecutter" wound from a cookiecutter |
shark bite (Photo: M. Kaplan, NMFS permit # 15530 to CRC)
While we didn't find the species we are looking for, this cetacean abundance let us try out the towfish for real. It was deployed 3 times for a total of 45 minutes of recording, split among rough-toothed dolphins and pilot whales. Once back on land, we had a look at the recordings and found lots of clicks and some whistles. So the towfish is looking good. Now to fix the drifter buoy once and for all...
|Spotted dolphin (Photo: M. Kaplan, NMFS permit # 15530 to CRC)|
|Spectrogram of two pilot whale whistles picked up by the DMON while in the towfish|