In an almost perfect illustration of Donham's Law, the New York Times reports this morning that New English fishermen are pooh-poohing calls from fisheries scientists for greater restrictions, or even an outright ban, on cod fishing in the gulf of Maine. The scientists point to new data showing cod stocks in much worse shape than previously thought; the fishermen say there's an abundance of fish. “Fishermen will almost always tell you that, and it’s not that they’re lying,” said Mark Kurlansky, whose 1997 book, “Cod: A Biography of the Fish That Changed the World,” documented how Canada’s once-abundant Atlantic cod were fished almost...

11 December, 2011

Scientists at UBC used ecosystem models, underwater terrain maps, fish catch records, and statistical analysis to estimate the biomass of Atlantic fish [large PDF] at various points the last century.  David McCandless of the UK Guardian's Data Blog turned the resulting maps into this animated GIF: McCandless writes: These early accounts and data on the past abundance of fish help reveal the magnitude of today's fish stock declines which are otherwise abstract or invisible. They also help counter the phenomenon of "shifting environment baselines". This is when each generation views the environment they remember from their youth as "natural" and normal. Today that...

06 June, 2011

Contrarian reader Denis Falvey writes: A decision that flies in the face of one fact of science does not necessarily constitute ignorance. A bounty may not eradicate coyotes, it may not even lower their numbers appreciably, but it will change their habits. Coyotes live in an ecological niche; like any other animal, they will multiply to fill that niche. I would prefer that the limits on their ecological niche not include my doorstep, and the only way to achieve that is for the animals to be wary of coming near my doorstep. That's not going to happen with my singing Kumbayah'....

25 April, 2010