I think in a way the two main weirs on the blackwater are still used for industry_ie industrial use as a way of generating money_ 1. Without fermoy weir, the rowing club, that attracts a lot of tourists, wouldn't survive, as the water would be too low for rowing.2 The 2 weirs keep the majority of fish downriver until the really constant high water comes around September _most of the world famous beats are downriver. It is a bit of a grey area, as a lot of income for the area is generated and the fish do get to the beds eventually. Weirs are obstacles to fish at the end of the day.Just my own thoughts and l'm open to correction
Thanks for the reply's Marcus and Jack. Makes you wonder as the weir has been there since day dot by the sound of it.
Just reading seeking's reply, the argument stating it is all at sea is just as valid as saying its all inland? It is easy to see changes and impacts in our landscape which are as plane as the nose on your face. Here's a thought, there are rivers in Ireland in rural areas with very minimal if any changes to its course and again minimal if any agricultural impact (one has its headwaters in a national park), but these rivers are also declining in returning numbers of salmonids. Why is that? Inland issues need to be addressed but it is now proven (scientifically, where is a graph when I need one) that smolt mortality at sea is increasing and todays salmon do not feed as efficiently as its predecessors have done (comparing scale samples show this).
We have a river in our area which is being used in a sea trout tagging scheme called COMPASS. The ratio of salmon and sea trout smolts in the river is nearly 50/50 approx, but the returning fish are no where near this ratio. This river is rated as a good if not prime sea trout fishery but again, salmon numbers are poor and only going one way.
When you own a fishery and a large number of your regular customers reside in the house of Lords_let's just say local government bodies may feel a bit "shy" about "asking" for their weir to be removed