Sure - I appreciate that is a hard thing to be sure of.
What sort of mileage? It surprises me when fishing the south end of Loch Hope, we catch 12 oz finnock with sea lice on them - that's 11 Km from the sea in a day or so.
Aye, but that's the average. What's the smallest?
Fly life is generally poor, most likely from previously pollutions incidents and also agricultural affects, but then we have a run of larger than average sized sea trout than many other rivers.
It seems all the more odd then, that the trout parr don't smolt as soon as possible and head out to sea - before the pyramid of numbers game reduces their population to the point that it is not worth their while pursuing the strategy of waiting and waiting and waiting... until they are of a size that they would be as well to stay put in the river and just be brownies?
Have you had a fisheries' biologist comment on what is going on with that system?
You didn’t mention anything about samples on that thread.You didn’t even bother answering my query about it.
Maybe due to there being two threads on exactly the same thing.
All browns, nice fish too blue gill plate on the first one gives it away.
There are 2 threads that differ only in a capital letter and an extra question mark! It is really confusing, trying to reply to them!!!
It did appear that you were trying to say that the blue on the gill of a trout was a diagnostic of it being a brown trout...
Aye, but that is not the same as saying that blue on the gill is sure to make it a brown trout... "blue gill plate on the first one gives it away."
Ah smolt size...
Chalkstreams and other fertile lowland streams in the Westcountry do produce big smolts. Smolts of 10" are common and bigger are not unknown. I know some of the Welsh rivers produce big (10"+) sea trout smolts. I used to see occasional big smolts on Uist too in May/June.
It is also worth remembering that finnock don't overwinter in all rivers in the same way that they do in many east coast Scottish ones. Certainly in the Westcountry no finnock overwinter in the rivers at all. So in the spring all you see is smolts not finnock, the finnock don't appear until July. You start trout fishing on March 15th and all you get nothing but "brown trout", all the sea trout kelts are long gone out to sea. Then in April you suddenly start to see smolts (as they silver up) turning up all over the rivers. Obviously elsewhere it doesn't happen like this but in many places it does and big (10" - 12") smolts are not considered unusual.
What does any of that have to do with the statement:
"Mostly seatrout suggests poor feeding in the river. Why do you reckon the trout hang about until they get to 12 inches before smolting???"
(And I was bearing in mind the poster was in Middlesbrough)
The other point about this, which was inferred from my comments about fertile rivers, is that these trout aren't hanging about until they reach 12" before smolting.
Caught in a smolt trap & inserted with a pit tag. While doing so measurements & weights were carried out. Salmon smolts were on average 4-8” and sea trout smolts 6-12”. Then tracked on their journey downstream & out to sea.
Surely scale samples were taken at the same time?Caught in a smolt trap & inserted with a pit tag. While doing so measurements & weights were carried out. Salmon smolts were on average 4-8” and sea trout smolts 6-12”. Then tracked on their journey downstream & out to sea.
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