Hungry fish

While I’m sure you’ve all seen the spectacular beaching behaviour of predatory killer whales, Orcinus, and dolphins, Tursiops, here’s a report of similar behaviour from a fish a little closer to home. It seems that catfish, Siluris glanis, have recently learnt to snatch and eat pigeons from the riverbank.

The proof of the matter is shown in this picture:

journal.pone.0050840.g001

You can see unsuspecting pigeons resting on the riverbank and predatory catfish lurking nearby. Looking closely at the smaller images reveals a successful bird catch.

Interestingly catfish do not display this behaviour in their natural range and so it may represent a fascinating adaptation to the new environment. Perhaps there are not enough fish to eat in these rivers or maybe catfish have simply developed a taste for pigeon? Either way, behavioural adaptation in this species may have implications for the ecological functioning of this riparian environment.

The paper is available in PLoS ONE:

http://www.plosone.org/article/info:doi/10.1371/journal.pone.0050840?imageURI=info:doi/10.1371/journal.pone.0050840.g001

 

Leave a comment

Filed under Uncategorized

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s