Fish have the natural behaviour to move across various aquatic ecosystems and for some species this is of vital importance. Migration is often a seasonal phenomenon which occurs in order to move between habitats, such as winter refuges-, foraging- and spawning or nursery habitats, also escaping unfavourable …

The international Wadden Sea is an estuarine tidal area along the North Sea coasts of The Netherlands, Germany and Denmark. It is characteristic for regions with sandy coasts and a medium tidal range. Fifty barrier islands separate the Wadden Sea from the North Sea, and an offshore transition zone to …

In dit rapport wordt onderzocht wat de bijdrage van houtstructuren is voor ecologisch herstel van de visstand in de Overijsselse Vecht. Er zijn 2 soorten houtstructuren te onderscheiden: beddingstructuren en oeverstructuren. Beddingstructuren worden in de watergang aangelegd, terwijl oeverstructuren …

Nutrition is an important consideration in zoos, as it affects the physical and mental wellbeing of the animals. To satisfy all aspects of the nutritional needs of animals, diet protocols are carefully designed. Kodiak bears are one of the largest land predators in the world, with males weighing up to …