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South Tyne Trout, do they get bigger?

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Ahh, the sweet smell of promotion.


I'm actually the Grayling Society's Equipment Sales Officer (they don't trust me with the money) and Area Secretary for the North of England and Southern Scotland.


To try and get a scientific response I've tapped a message off to a fishy chap I know and I’m awaiting his reply.


Information I’ve looked at state that the fish are biologically the same but the Sea Trout has a smolt stage whereas the brown does not.


I will post it up when I recive his reply





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Evening All,

I've had a reply to my query and its posted below:


"Hi Duncan


Sea trout are the sea-running (anadromous) form of the brown trout (Salmo

trutta) and so are genetically the same species. Underlying the sea trout

habit may be a combination of circumstances, including limited local feeding

and growing opportunities in fresh water and good access to and from

saltwater. The tendency to migrate to the sea to feed is more common in

some populations than in others and is likely to be inherited to some

extent. However, even where sea trout are common, some of the juvenile

trout live their lives and mature in fresh water as brown trout. In these

mixed trout spawning populations, most of the brown trout (sometimes nearly

all of them) tend to be male fish. Conversely, females are more common than

males among sea trout. In experimental stocking experiments that I carried

out in the River Earn System, in Eastern Scotland, burn trout, river trout

and sea trout were produced from batches of eggs produced and fertilised by

sea trout.


I am not sure how much the relative proportions of sea trout and brown trout

produced within individual spawning populations vary between years under

normal circumstances. However, a radical environmental change, such as the

formation of a new barrier to migration, or the availability of a major new

source of food, such as that provided by fish farm cages, may curtail sea

trout. It is also believed that sea trout originating from donor brown

trout stocks soon colonised other rivers in the Falkland Islands and

elsewhere. Trout have the inherent flexibility to adapt quickly to such



I hope this is the kind of information that you wanted.


Best wishes




I hope this is sufficiently informative for everybody.




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Thanks for that Duncan...Pretty much as I had understood it to be. A fascinating phenomenon but, basically, that the two life styles are shared by the same fish.


I getting to quite fancy the idea of deliberately going after a Sea Trout. Trouble is I get myself in enough pickles with bankside vegetation in broad daylight without trying it at night. :D


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Thanks Duncan, cofirms what I understood the case to be and as Falkus put it, quote;- It must be remembered however, that physiologically the sea trout is an anadromous brown trout wearing its migratory coat. End of quote.

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Cheers Duncan, the assumption must be that the brownies are just proving elusive....good news then as it will be more fun trying to get one.


Tinca, when there's some fresh water coming into the river the sea trout up here are caught early morning and evening without the need for moonlight wanders........there is some free sea trout fishing on the river wear and the tyne which can be very productive, if your interested in details said me a PM



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Phil, you have mail.


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