Temperature casts taken from narwhals in Melville Bay in September.

Temperature casts taken from narwhals in Melville Bay in September. When whales migrate to deeper water, these casts will go down to 1800 meters. Image courtesy of Kristin Laidre.

Related Links

Tracking Narwhals in Greenland: Leg 1 Mission Summary

Tracking Narwhals in Greenland

NOAA Ocean Explorer Gallery