During the second day of ISGAXII the environmental applications which can derive from the use of genetic tools in aquaculture was the main issue for the first session of the day. Presentations focused on aspects such as how to keep an adequate genomic diversity in cultured species, how economic and environmental criteria can be compatibly addressed and which traits are more relevant for selection strategies which seek to encompass economic profitability and environmental sustainability and, as well, on how restocking strategies can benefit from aquaculture genetics. Following sessions during the day provided new insights into breeding programmes, tools and strategies. Introductory reviews on historical context and perspectives for aquaculture breeding in fish aquaculture by. Prof. Roberto Neira and about selective breeding in Nile Tilapia, by Dr. Hans Komen, paved the way for further presentations in these sessions for other species such as glthead sea bream, guppy, various species of salmon, sea bass, abalones, clams and pearl oysters.

This second day came to its end with a field trip to Ría of Arousa, where ISGA attendants had the chance to see on-site how mussels, oysters and scallops are grown in rafts in that area and to learn about the social and economic relevance of these activities to Galicia, particularly to the large number of small locations and communities in its coasts.