It was the first time they’d been seen in the river for many, many decades,’ he recalls.

Ward had his eye on a fish pass at Colwick back in the 1970s, when he first became aware of salmon returning to the Trent. The CFP has been a long time in the making. If there’s more energy when they reach the spawning grounds, they can produce more eggs and the spawning will be more efficient, more productive.’ ‘The improvements to the spawning in the Derwent and the Dove and all those tributaries will increase manyfold because we can get fish past Nottingham very quickly. The new pass at Holme Sluices in Colwick will make a big difference, says Ward. All migratory fish are getting to that point and getting stuck.’ The Dove and the Derwent are stunning rivers and they should be really good salmon rivers – the gravel’s there and the habitat’s there. The weirs on the lower Trent, including Holme Sluices, are only passable by migratory fish in very specific flow conditions and this ‘knackers the rest of the Trent.

However, man-made barriers remain problematic, explains Scott McKenzie, senior catchment manager at the Trent Rivers Trust. The construction of England’s biggest fish pass at Holme Sluices. The salmon population there is now regarded as self-sustaining, says Jacklin. Small numbers were recorded in the lower Trent in the 1970s, ’80s and ’90s, and the population was bolstered by reintroductions between 19. Water quality improved during the second half of the 20th century, enough that salmon started to bounce back. Historical data on migratory fish are patchy, but net catch records for the Trent are illustrative of the decline: from around 3,000 salmon a year in the 1880s to just six in 1960. ‘Salmon were made extinct by pollution, but they were already on the decline because of the lack of access to their spawning areas from all the barriers,’ Jacklin continues. Pollution from the industrial centres of Stoke-on-Trent and Birmingham poured downriver until it reached the 80-kilometre tideway, where it was washed to and fro, with disastrous effects. ‘I know we’ve got a pollution scandal going on at the moment, but on the Trent, when you look back into history, today is nothing,’ says Tim Jacklin, a Wild Trout Trust conservation officer with decades of experience in the Trent catchment. The weirs on the lower Trent are only passable by migratory fish in very limited flow conditions. Some fish were able to overcome these barriers – whether by leaping over or wriggling through what were often imperfect constructions of stone or wood – but these tenacious individuals were then beset by a further challenge: appallingly high levels of water pollution, both chemical and thermal. Holme Sluices was built in the 1950s, but the decline of migratory fish in the Trent catchment dates back to the Industrial Revolution, when large weirs were first built to open up the river for trade. We track a lot of different crossword puzzle providers to see where clues like ' What the little Dutch boy stuck his finger in, in a kid's story' have been used in the past.‘There are all sorts of issues with salmon – exploitation at sea, predation, disease – but we’re fixing one here on the Trent,’ says Simon Ward, a fisheries technical specialist with the EA. Recent Usage of What the little Dutch boy stuck his finger in, in a kid's story in Crossword Puzzles What the little Dutch boy stuck his finger in, in a kid's story.What stacked-up sandbags might function as.What Brinker's boy plugged with a finger.Possibly related crossword clues for ' What the little Dutch boy stuck his finger in, in a kid's story'īased on the answers listed above, we also found some clues that are possibly similar or related to What the little Dutch boy stuck his finger in, in a kid's story: Matching Crossword Puzzle Answers for 'What the little Dutch boy stuck his finger in, in a kid's story'īelow is the complete list of answers we found in our database for What the little Dutch boy stuck his finger in, in a kid's story: If you are stuck trying to answer the crossword clue ' What the little Dutch boy stuck his finger in, in a kid's story', and really can't figure it out, then take a look at the answers below to see if they fit the puzzle you're working on. We found 1 answers for this crossword clue. If you're looking for all of the crossword answers for the clue ' What the little Dutch boy stuck his finger in, in a kid's story' then you're in the right place.

Flood barrier crossword