Trout & Salmon (UK) - - News Reel -

Dr Ron­ald Campbell of The Tweed Foun­da­tion has in­tro­duced sci­en­tific clar­ity and his­toric ev­i­dence to the hotly de­bated topic of chang­ing salmon runs. In a pre­sen­ta­tion about how the Tweed’s runs have changed over cen­turies, Dr Campbell ex­plains that the shifts from au­tumn to spring runs and from multi-sea-win­ter fish to grilse pre­dom­i­nance, and vice versa, have hap­pened many times be­fore and may be cycli­cal. Dr Campbell's 20-minute talk can be viewed at the Tweed Foun­da­tion’s chan­nel on Youtube.

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