All you ever wanted to know about cave trout!

https://entomologymanchester.wordpress.com/2015/09/01/an-unusual-dweller-of-british-caves-a-story-of-the-brown-trout/

Filmed for a Museum project.

Graham
 

ah147

New member
That's really good.

As a diver I often stare at these little fishies (as my many photos of them will attest) and wonder what the hell they've been through and what will happen to them and what they do.

If you have any more information on them I'd love to see it. Did you mention a book in the video?
 

Pegasus

Administrator
Staff member
Really enjoyed the film, thank you for posting, Graham.

PS - I still make chilli popcorn as you taught me many years ago  :)

All the best, Jane
 
Excellent stuff. Anyone seen any trout in Penyghent Pot recently? Last time I went (Easter 2010 on a 60th Anniversary trip) I didn't see any, but I've seen them in the Entrance Crawl and in the Lower Main Streamway above Niagara on earlier trips over the years.
 

adam

Member
Brilliant video! Last year I was amazed to see a trout parr in the tiny bit of stream above the last pitch of Diccan Pot. It must have had quite a fall to reach there, I hope it managed to find its way through to the Ribble. I find it fascinating that these upland streams above caves have trout populations in them - Whit-a-Green, Penyghent, Fell Beck - how and when did they get there? It would be interesting do see how genetically distinct they are from their nearest neighbours.
 

bograt

Active member
Great talk Graham, BUT, as is usual with all research of this nature;---

You have already shown that there is a sufficient supply of food, why could it not be possible for these fish to actually breed underground - do fish eggs need sunlight?

Sorry Graham, this conversation should have been held in a pub MANY years ago!--. :eek:



 

2xw

Active member
I think they need a gravel bed to spawn, and they'd want to be moving to a new location (the anadromous ones anyways)
 
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