Species habitat occupation, observed during the first quarter IBTS from 1980 to 2010, has been expressed as rare, occasional, frequent, recurrent depending on density levels and...
PLEASE NOTE: This dataset has been superseded by the 'Freshwater fish surveys (NFPD)' dataset and is now Retired. As of March 2020 All data formerly available in 'Freshwater Fish Counts for all...
This survey was undertaken by Cefas as part of the CEFAS Historic surveys; Station and biological data collected during research surveys carried out by Cefas (formerly Directorate of Fisheries)...