Atlantic Cod, photo NOAA.

Atlantic Cod, photo NOAA.

Cape Cod Online: Scientists believe they have evidence global warming may hold a clue in the mystery of why, despite 20 years of increasingly harsh fishery regulations, cod hasn’t rebounded.

Eight boxes represent index areas for long-term sea surface temperature (SST) trends for the Northeast Shelf ecosystem; annual mean, minimum, and maximum SST for the period 1854-2011 was calculated for the index area. The grey shaded area of the Northeast Shelf was used in the calculation of thermal habitat distribution for the ecosystem. Credit: Kevin Friedland, NEFSC/NOAA

Eight boxes represent index areas for long-term sea surface temperature (SST) trends for the Northeast Shelf ecosystem; annual mean, minimum, and maximum SST for the period 1854-2011 was calculated for the index area. The grey shaded area of the Northeast Shelf was used in the calculation of thermal habitat distribution for the ecosystem. Credit: Kevin Friedland, NEFSC/NOAA

The species of zooplankton that is one of the preferred foods of larval cod simply can’t take the heat, according to a recent report by National Marine Fisheries Service scientists at Narragansett Laboratory in Rhode Island and the Northeast Fisheries Science Center in Woods Hole and published last week in the journal Progress in Oceanography.

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