Raw materials

The present book is devoted to dead wood, mainly in forests subjected to minimal management. Despite the focus of the book on sem-natural forests, dead wood is also necessary in managed forests and amounts generally found there ought to be increased. Dead wood and old, hollow trees are essential to a functioning forest ecosystem and necessary for the conservation of a myriad of species including some that are endangered.

Reducing the environmental footprint of aquaculture has become a high priority as part of the drive for greater sustainability in modern society. To date, a major concern has been the challenge of feeding farmed fish with products that are nutritious but, at the same time, economically and environmentally sustainable. This guide sheds sheds light on the different sources of feed ingredients provided to fish during their life cycle.