Some scientists estimate there's a one in two million chance of finding a blue lobster, while others say the odds are far greater, depending on the degree to which the coloration is owing to diet or genetics.
Blue lobsters are very rare, expert says
Tyan Bassett, the animal care coordinator at the Cape Cod Museum of Natural History in Brewster, said blue lobsters are exceedingly rare. Some scientists estimate there's a one in two million chance of finding a blue lobster, while others say the odds are far greater, depending on the degree to which the coloration is owing to diet or genetics.
"There's a couple of things that we've learned about blue lobsters here. One is it might be dietary blue, meaning it's lacking a certain food in its diet, so it turns blueish," Bassett said."We've had one of those ourselves at the museum. When it molted, it was brown again." And then there are the blue lobsters that are genetically blue."They legitimately lack the pigment to make them be brown," Bassett said., which reacts to proteins in the layers of the shell – the pigment is the same one that makes shrimp and salmon appear pink. Some proteins in the shell bind the astaxanthin to create a blue tone; others create more red and yellow tones. Together, the layers of color create the overall brown appearance of most lobsters.
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