The world’s 15 biggest seafood companies need to do more to stop their lost fishing nets killing millions of fish every year, according to a new report by World Animal Protection.

According to the green group, an estimated 5 to 30 percent of the decline in some fish stocks can be attributed to abandoned, lost or discarded fishing nets and line, known as ghost gear, which every year entangles more than 100,000 whales, dolphins, seals and turtles.

In addition, an estimated 70 percent of macroplastics by weight are fishing related and 71 percent of wildlife entanglements involve plastic ghost gear, said the report.