Almost 200 endangered southern right wales have been spotted off state’s coastline this year, amid concerns about impact of algal bloomSign up for climate and environment editor Adam Morton’s free Clear Air newsletter hereScientists say a bumper season for southern right whales in South Australia is a “sign of hope” for the state amid the ongoing effects of a devastating algal bloom.Flinders University marine biologist and chief scientist of the Australian right whale research program, Dr Claire Charlton, said research teams were pleased to record early sightings of almost 200 whales off the state’s coastline, after lower numbers in recent