UXBRIDGE, Canada, May 26 (IPS) – Imagine large pods of mighty blue whales and orcas darkening the waters off Cornwall, England, while closer to shore blue sharks and thresher sharks chase herds of harbour porpoise and dolphins.
Pure fantasy? No, in fact that extraordinary abundance of marine life off the English coast was the norm for oceans around the world not so long ago, researchers have now documented.
And then humans began to mine the seas of anything worth eating.
“The impact of fishing over the centuries is far larger than anyone thought,” said Poul Holm, a professor at Trinity College in Dublin and global chair of the History of Marine Animals Population (HMAP) project which part of the 10-year Census of Marine Life.
While many valuable species have been fished out in recent years, that has been happening for hundreds of years around the world based on nine years of research by hundreds of experts.
“In looking back 500 to 2,000 years ago, you get a real sense of the impacts of fishing and the cascading effects on marine ecosystems, some of which may be beyond recovery,” Holm told IPS. Continue reading