Samenvatting

To protect the otter population in the Netherlands, it is important to understand the otter's ecology. Otters have a very high metabolic rate, and they need to eat often. Here for we need to know of what species their diet consists, as this might influence their behaviour and distribution. When we know of what prey species the otters diet exists it would be easier to protect the otter and its environment. Main questions are: What is the diet of the Eurasian otter in the study areas? And how to produce a usable reference manual?