A study led by Qiujie “Angie” Zheng from the University of Maine found that consumers are willing to pay an average of $3.42 more for a lobster roll made with lobster harvested using ropeless fishing technology designed to reduce whale entanglement risks when presented with information on animal welfare. Researchers tested how information about whale conservation, animal welfare and Maine’s lobster industry shaped consumer willingness to pay more for lobster harvested using ropeless technology. Messaging focused on whale welfare and entanglement impacts proved most effective at increasing support for ropeless technology, with consumers willing to pay more.

A new study by University of Victoria and Pacific Salmon Foundation scientists has uncovered what adult Chinook salmon in the Salish Sea are eating—and revealed diet can differ according to region. 

When the Atlantic herring colonised the Baltic Sea thousands of years ago, it needed to adapt to the low salinity. Genes with a vital role in the functioning of sperm, eggs and embryos were crucial to this adaptation. In this new study, the researchers sequenced the whole genome of a large number of herring, Atlantic as well as Baltic, and show that genetic changes in genes expressed in sperm, eggs and early embryos were crucial for adaptation to the Baltic Sea. The results make perfect sense given that in species with external fertilisation, sperm, eggs and embryos are directly exposed to the environment and must therefore adapt to the local conditions. Four specific genes were highlighted as particularly important (listed below)

Harbour porpoises were once found across a much wider area of the Baltic Sea than they are today, including regions where they are now rare or absent. This is shown in a new study that uses centuries-old Swedish newspapers to reconstruct past distribution patterns.

Scientists from the Max Planck Institute for Marine Microbiology discover that a group of beneficial gut bacteria and their marine relatives use the same feeding strategies. This sheds new light on the potential of these bacteria for gut health research, as well as their role in marine carbon cycling.

Dr Ainara Ballesteros is a Juan de la Cierva postdoctoral researcher at the Institute of Environment and Marine Science Research at the Catholic University of Valencia, where she leads a research group focused on jellyfish biology, aquaculture, and the sustainable use of marine resources. Her work is centered on developing innovative solutions based on marine science, particularly through the study of underused organisms as sources of high-value compounds within circular bioeconomy and zero-waste strategies.

She is joined in this work by Raquel Torres, a PhD student at the same institute, who is carrying out her doctoral thesis within this line of research, focused on jellyfish valorization, collaboration with the fishing sector, and the sustainable management of marine resources.

They are co-authors on a new Frontiers in Marine Science article which investigated whether jellyfish accidentally caught by small-scale fishers in Spain could be transformed into a valuable resource instead of being treated as waste. The team worked side by side with fishers to better understand their perceptions of jellyfish bycatch, identify which species are most frequently caught, and evaluate whether one of them, Rhizostoma pulmo, could serve as a sustainable source of high-quality collagen.