species facing extinction: Scientists losing battle to manage stocks
HALIFAX - Fishing fleets in the North Atlantic must be seriously reduced if depleted fish stocks are ever to recover, a group of scientists is recommending.
A study released Saturday revealed that catches of preferred fish species such as cod, tuna, haddock, flounder and hake have declined over the last 50 years despite a growing effort to find them.
The study conducted by an international group of fisheries
scientists painted a grim picture of fish stocks in the North Atlantic.
"But you need fish to make fish, so we have produced a massive reduction in productivity."
While collapses of fisheries in New England and Newfoundland have appeared to be local in scale, the study said the collapse affects the entire North Atlantic.
TARGET STOCKS CHANGING
Serial depletion of large predatory fish at the top of the marine food chain means the major fisheries in the North Atlantic are now for invertebrates.
"We are fishing for bait and headed for jellyfish," said Pauly.
The study determined that catches have declined steadily over the last half-century despite a tripling in fishing effort.
Andy Rosenberg, a fisheries scientist at the University of New Hampshire, said the problem of declining stocks can't be fixed "one fishery at a time because the boats move around."