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Kansan ottamia kuvia rakkaasta Longinojasta. Kaikki kuvat ovat löytyneet Instagramista hashtagilla #longinoja. Lisää omasikin tälle listalle kaikkien fiilisteltäviksi, hyödyntämällä samaista #risuaitaa eli #longinoja!

Hatchery grown stocked fish

Hatchery grown stocked fish usually seem to be a solution for a lot of problems but more often than not – they do more harm than solve any real issues. .
Stocking fish to a river for fishermen to catch for food is really nothing more than just a settlement for all the harm done and a way to suggest people that the fisheries are doing good. But the reality is that when these stockies breed with wild fish the genetic diversity of the wild ones weakens and eventually we end up slowly killing what’s left of the wild populations. .
There’s a place for hatcheries but supporting natural life cycle is the only way to actually get back our healthy migratory fish populations. It’s a rocky road but luckily we have a growing number of people working for this and actually showing numbers of successful restoring programs. .

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Kuvaaja: concretereasons

The dam

This river and it’s salmon are the reason why Finland’s capital Helsinki was built where it is today and these rapids even give a name to the biggest city of our country – Helsingfors.

Human activities had already started to slowly kill the very important salmon fishery in the 1700’s.

In the 1800’s these rapids were dammed without valid permissions blocking fish migration.
These days the smaller eastern branch is open for migration but the current is harsh and only let’s strong species like seatrout and salmon to get upstream to their spawning grounds.

Today the dam still holds a functional power plant that basically produces enough power to charge a few cell phones. The turbines however kill some of the juvenile fish migrating downstream causing indefensible devastation to these species on their way to the baltic sea.

Taking down the dam has even been discussed in the parliament but some of the deputies seem to be worried about taking down a historical but illegal brick wall and they’re even concerned about the environmental impacts..

The fish in this photo is a stocked salmon jumping against the dam because it hasn’t found it’s way to the eastern branch of river. This happens to many of the fish and some of them even end up dead because of the injuries they get from the wall and the rocks. .

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Kuvaaja: concretereasons