Some 1,700 acres of English coast will be transformed from farmland to a saltwater marsh at a cost of £12 million (about $24.4 million) …

… researchers tagged and released bluefin tuna in the western Atlantic in an attempt to track the species’ perilous decline …

… a Silicon Valley company is developing a way to eliminate excess carbon dioxide from the atmosphere by consuming it during the production of cement, a process known as “carbon sequestering” …

… rescuers worked five hours to save a basking shark that had washed up on an east Scotland beach, but the shark eventually succumbed …

… rescuers succeeded in saving a southern right whale that had become tangled in fishing gear in Australia …

… the bodies of at least six Ganges River dolphins were found chopped into bits and buried near a train track in India …

… commercial fishermen were disappointed by this year’s coho salmon catch

… a 19-year study concluded that Humboldt squid were decimating hake populations in the Pacific. The squid were seen to profit from the lack of other predator fish, such as billfish and tuna …

… the Four Seasons Ocean Residences, a 719-foot cruise ship outfitted with 112 luxury apartments up to 8,000 square feet each, was set to make its debut in Dubai …

… 22 boats confiscated for illegally fishing in Malaysian waters will be sunk to create artificial reefs …

… a man in Washington state was ticketed for boating too close to killer whales …

hundreds of menhaden, fish that migrate from the Atlantic Ocean to North Carolina rivers to spawn, were found to be experiencing “a lesion event.” An environmental supervisor said, “The fish we could definitely classify as dead were dead because they were in birds’ mouths” …

researchers tagged chinook salmon before releasing them to travel from the Columbia River to the Pacific Ocean …

… and the world celebrated International Cephalopod Awareness Day.