Abstract
Collisions between vessels and large cetaceans are not only a significant threat to several whale populations, but also to the security of the vessels involved. The scientific community and shipping companies are seriously concerned about these accidents in different regions in the world (in particular in the Mediterranean, North Atlantic, Canary Islands and Japan).
In response to this problem, researchers, engineers and representatives of maritime transport companies have joined forces to develop an innovative system. REPCET is a collaborative computer system based on the density of the navigation network. Through use of a computer network, REPCET allows commercial vessels real-time access to the positions of whales seen recently on their navigation routes in order to reduce the risks of collision.