The existence of population structure of Atlantic herring in the Celtic Sea and South of Ireland is still not clear. According with research available about the genetic structure of herring populations in this area, there is some genetic differentiation, but is not certain yet that can be used to define proper management units. Nevertheless, Celtic Sea and South of Ireland shows evidence of a differentiated population (ICES 2014).

This fishery was certified by the Marine Stewardship Council system in March 2012. Click here to link to the MSC fishery page and to learn more about the MSC fishery certification unit.