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Ecosystem conditions appear to be the main factor in stalled growth of northern cod, says a Department of Fisheries and Oceans research scientist. (Hans-Petter Fjeld)

Canada - With natural prey like capelin and shrimp in decline, cod are eating their young: DFO

FFAW disagrees with assessment, says there has been 'incredible growth' in biomass

Stalled.

That's how research scientist Karen Dwyer of the Department of Fisheries and Oceans describes the northern cod stock following this year's assessment.

Ecosystem conditions appear to be the main factor, said Dwyer — especially low stocks of capelin and shrimp.

"Both of those prey are very important in driving the population dynamics for cod," she said.

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