This data set comprises of biological data collected from commercial fish landed from Irish vessels. The data is collected under the Data Collection Framework (REGULATION (EU) 2017/1004 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 17 May 2017 and COMMISSION DELEGATED DECISION (EU) 2021/1167 of 16 July 2021 ) under the guidance of ICES WGCATCH (statistically sound sampling). Data is collected all year round based on target number of visits to ports which are proportional to the landings into that port for Demersal and on a seasonal basis for Pelagics proportional to the fisheries. Fisheries occur in the North East Atlantic ICES Sub areas 2,4,6-8. Data is Quality Controlled for all parameters, length, weight, sea and maturity before being uploaded to the Regional Data Base. A key objective of fisheries research is to provide good information on the state of fish stocks. This information is collected through various sampling programmes and the data are used to provide advice on the sustainable management of fish stocks, upon which the industry depends.