Top articles

Exploring the Greenlandic Deep Sea

Authors: Julius Nielsen and Martin Nielsen, June 2012amblyraja hyperborea

The deep sea begins 200 meters beneath the water surface. At this depth the amount of sunlight is limited and can be compared with the light on an evening sky, hence it is called the twilight zone. Below depths of around one kilometer there is no sunlight left, and in this world of darkness, food is scarce. Read More

Introduction to DESCNA and the Deep Sea

rossia palpebrosaAuthors: Julius Nielsen and Martin Nielsen, March 2012

DESCNA explores a mysterious world unknown to many – the world of the deep sea. Even though the deep sea provides the largest habitat on Earth, very little is known about the life and processes down there. Life in the deep sea has evolved under physical conditions very different from our own. Read more

Photo-ID catalogue: Killer whale (Orcinus orca)

orcinus orcaUpdated: August 2011

DESCNA can provide the first photo-ID catalogue of Killer whales in Greenland. The catalogue contains photos of 15 distinct individuals and is an essential first step to identify the distribution and migration of specific individuals and pods.

Download Photo-ID Catalogue (pdf 2.5 mb)

The Greenland Shark (Somniosus microcephalus)

somniosus microcephalusAuthors: Julius Nielsen and Martin Nielsen, March 2012

The Greenland shark (Somniosus microcephalus) grows up to 7 m in length and is thereby one of the largest fish in the world. In spite of the size of the shark and the large distributional range, knowledge of this fish is very sparse. Read more