Pacific Ocean ‘blob’ appears to take toll on Alaska cod

Gulf of Alaska cod populations appear to have nose-dived, a collapse fishery scientists believe is linked to warm water temperatures known as “the blob” that peaked in 2015. The decline is expected to substantially reduce the Gulf cod harvests that in recent years have been worth — before processing — more than $50 million to Northwest and Alaska fishermen who catch them with nets, pot traps and baited hooks set along the sea bottom.,,,  Scientists don’t ascribe the blob specifically to climate change. Gulf of Alaska temperatures — influenced by atmospheric conditions such as wind strengths — have always fluctuated over time. But researchers have never before tracked such an extreme heat wave that spread across such distances and penetrated to such depths. click here to read the story 11:52