New insight for officials setting ecosystem goals, rebuilding fishery remnant
Once a dominant species, the volume of cod on the Scotian Shelf has plunged 96% since the 1850s, according to landmark research published today. In fact, just 16 small schooners of the pre-Civil War era could hold all adult cod currently estimated in the once-rich Scotian Shelf.
Writing in today’s edition of Frontier’s in Ecology (www.frontiersinecology.org), Census of Marine Life researchers announced the first-ever estimate of cod levels in the 1850s, created using old schooner catch records and observations, coupled with modern modeling tools. And they say their findings have profound implications for contemporary policy makers trying to rebuild fishery "remnants" and restore the marine ecosystem. "Managing the remnants of the ocean’s resources is a critical issue worldwide, but evidence for what constitutes a healthy fish population remains controversial. As we attempt to rebuild these fisheries, our decisions should reflect real and realistic goals for management, not just recently observed catch levels."
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