by Seth Johnson-Marshall | Jul 11, 2025 | Publications, Publications
Usk Salmon Catch & Stock Status, 2023 FollowFollow 14th November, 2023 Dr Guy Mawle’s report on the rod catch and stock assessment of Atlantic salmon of the river Usk in 2023. Click Here To View...
by Seth Johnson-Marshall | Jun 16, 2025 | Datganiadau Sefyllfa
Ymgymeriadau Gorfodi a Setliadau Rheoleiddio FollowFollow Safbwynt Afonydd Cymru Ymgymeriadau GorfodiMae Ymgymeriadau Gorfodi (EUs) yn ddewis amgen i erlyn ac wedi’u cynllunio fel bod llygrydd yn talu am adfer difrod amgylcheddol y maent wedi’i achosi. Yng...
by Seth Johnson-Marshall | May 8, 2025 | Projects, Uncategorized @cy
Healthy Soils For Healthy Rivers The health of a river is largely dependent on the health of the soils in its catchment.Yet with so much focus on the water industry and sewer overflows this relationship is often overlooked.“Healthy” soils are high in organic matter...
by Seth Johnson-Marshall | May 7, 2025 | Soil problems
Toxic chemicals FollowFollow Powerful insecticides such as diazinon (used in sheep dipping) and cypermethrin which is used in some forestry operations have been entering rivers. Even in very small doses, these chemicals can do significant damage to aquatic insects and...
by Seth Johnson-Marshall | May 7, 2025 | Soil problems
Nutrients FollowFollow Attached to soil particles often comes nutrients such as Phosphates, Nitrogen and Ammonia, which have been spread on nearby fields as fertiliser or as waste disposal. Excessive nutrients change the ecology of rivers making them eutrophic...
