Recent situation remains.  Reasonable clarity on up and midle river beat, poor on lower sections.

Recent juvenile survey have been published by NRW   They do not make pretty reading
  See a section below.

Interestingly it shows that the Monnow, Lugg and to some extent the Arrow arevirtually juvenile deserts.. So much for the much lauded Monnow project.  Biggest white elephant of the past 20 years.

Catchment Population Trends
The graphs below show a simple comparison of average salmon and trout densities across the Wye catchment since surveying began in 1985. NB - data shown here are only from fully quantitative surveys of sites in the current Welsh monitoring programme; this traditionally focussed on good salmon spawning habitat and the Lugg, Arrow and Monnow were only included from 1987. Not every site in the programme was done every year; no surveys were done in 1995, 1996 or 2001, and only the Irfon catchment was surveyed in 2011.
Salmon fry and parr densities have shown a statistically significant decline over this time. Analysis of the data from 2003 onwards, showed an increasing trend until the inclusion of 2016 survey data. Although the fry populations have recovered somewhat in 2017, 2018 showed the second lowest numbers since 2007. The poor parr results continue to be seen and even though 2018 saw parr numbers doubling from 2017, numbers are still very low.

See full report;

https://www.wyesalmon.com/wp-content...mmary-2018.pdf