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|  » Stats |
Members: 50,170
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| | Welcome to our newest member, RMTREDSTON | |  | 
21-06-2010, 02:27 PM
|  | Active Member | | Join Date: Jan 2010 Location: London
Posts: 37
| | | Freshwater crab (from Greece)
More WAG than WAB, as this freshwater crab was found in Greece. Is it Potamon fluviatile?
Thanks in advance for any info.
Mark
PS Sorry about the camera shake.  |
23-06-2010, 04:10 PM
|  | Wild Member | | Join Date: Oct 2007 Location: Southwest of England
Posts: 167
| | | Re: Freshwater crab (from Greece)
Interesting, but not being familiar with Greek freshwater crabs. Now that would be interesting - the crab version of the bird spotting twitcher!
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I must go down to the sea again - for the tide, and the sea-gulls crying. |
23-06-2010, 04:27 PM
|  | Commander of the Wild Empire | | Join Date: Dec 2006 Location: On the southern boundary of the Lake District National Park.
Posts: 4,585
| | | Re: Freshwater crab (from Greece)
Never having seen it before and google imaged it - it looks like it.... http://www.cosmosmagazine.com/files/...70608_crab.jpg |
24-06-2010, 09:58 AM
| | Active Member | | Join Date: Jan 2010 Location: London
Posts: 37
| | | Re: Freshwater crab (from Greece)
Many thanks. The only f/water crab I had heard of was the Chinese mitten crab, so I was a bit puzzled by this one. I googled freshwater crabs and Potamon fluviatile looked the closest, except that a lot of pictures showed the crab looking ‘boxier’ than my leggy specimen and I wondered if was one of the other species.
Incidently, it was in a pool under one of the Greek Islands’ few waterfalls, at Lefkas. It was catching insects that fell on the water and devouring them with relish.
Best wishes
Mark |
24-06-2010, 10:03 AM
| | Active Member | | Join Date: Jan 2010 Location: London
Posts: 37
| | | Re: Freshwater crab (from Greece)
PS just found this, for those going to Greece for their hols: The occurrence of Potamon species (Decapoda, Brachyura) relative to lotic stream factors in Greece ( http://biologia.savba.sk/59_2_04/Maurakis_EG.pdf)
Mark |
24-06-2010, 12:22 PM
| | Commander of the Wild Empire | | Join Date: Dec 2006 Location: On the southern boundary of the Lake District National Park.
Posts: 4,585
| | | Re: Freshwater crab (from Greece)
Your link informs of four Potamon spp. The distribution map has them pretty well geographically seperated so you might get a clue from that.
P.fluviatile looks promising having just found where Lefkas is situated.  |
25-06-2010, 03:45 PM
| | Active Member | | Join Date: Jan 2010 Location: London
Posts: 37
| | | Re: Freshwater crab (from Greece)
Hi Woodman,
Yes, looks like it. This is the real buzz of natural history – you start with ‘what’s that?’ and before you know it, you’ve learnt that there are four species of freshwater crab in Greece and that one dominates the west.
Best wishes
Mark | | |
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