This news item from CBC reports on the tragic death of five right whales all from the Gulf of St. Lawrence over the past few weeks. Canadian and US scientists are working in collaboration to document the event and determine the cause of death.
http://http://www.cbc.ca/news/canada/new-brunswick/six-dead-right-whales-1.4176832
Featured Bycatch Species

The main cause of the decline of loggerhead turtles, and the current primary threat to global populations is bycatch in longlines, gillnets, trawls, traps and pots, and dredges.