cod
edyong | March 11, 2008
Some of us have enough trouble finding the food we want among the ordered aisles of a supermarket. Now imagine that the supermarket itself is in the middle of a vast, featureless wasteland and is constantly on the move, and you begin to appreciate the challenges faced by animals in the open ocean.
Thriving habitats like coral reefs may present the photogenic face of the sea, but most of the world's oceans are wide expanses of emptiness. In these aquatic deserts, all life faces the same challenge: how to find enough food. Now, a couple of interesting studies have shed new light on the…
zooillogix | February 28, 2008A fascinating new study published in the Proceedings of the National Academy of Sciences suggests that the impact of human fishing may be reducing the fitness of fish populations overall. It may also explain why your grandfather insists that "the fish don't bite like they used to." The thinking goes like this: bold and aggressive fish tend to eat more, grow faster and ultimately have more baby fish. They also tend to be the ones that chase and bite fishing lures, and in the case of commercial fishing, get caught in gill nets.
Aggressive, fast breeding fish are naturally attracted to huge…
ddobbs | January 15, 2008A new journal from the Nature Publishing Group (publishers of Nature, Nature Neuroscience, and other favorites of mine) has just started a journal about climate change, and to my delight they feature a story about climate change and Atlantic cod, an old love of mine from my time on the Gulf of Maine.
Atlantic cod, Gadus callarius Linneaus, by Goode, from the magnificent Bigelow and Schroeder, Fishes of the Gulf of Maine, 1953, the best field guide I've ever read, now online.
Cod aren't doing terribly well, because of overfishing and decimation of inshore spawning stocks, though some pockets…