Fig. 3


Download original image

Licenced signal crayfish introductions (white circles), unlicensed observations inside signal crayfish region (orange circles, and unlicensed observations outside signal crayfish region (red circles) in Finland. a) Before 1989, b) 1st crayfisheries strategy era (1989–2000), c) 2nd crayfisheries strategy era (2001–2013), d) After 3rd crayfisheries strategy 2014–2016). Marked areas represent regions designated for signal crayfish in national crayfisheries strategies.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.