Once a common sight in Britain's rivers, the European eel is now on the critically endangered list - the population has plummeted by 90% in the past 30 years. One of the reasons for their decline are man made obstructions in rivers, like weirs, which prevents young eels migrating upstream. via Pocket http://www.bbc.co.uk/news/science-environment-23636074#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa
No comments:
Post a Comment