Tag: Washington Sea Grant

Green crabs in Hood Canal raise questions about invasion; further response is coming

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For the past six years, a volunteer crew has been diligently visiting Nick’s Lagoon near Seabeck on Hood Canal, checking the waters for the destructive European green crab. The three citizen scientists have caught and released lots of native crabs — including thousands of hairy shore crabs. But, until May of this year, they never saw even one invasive green crab, known for its potential disruption of shellfish beds and destruction of native habitat. The discovery of a green crab in Central Hood Canal was fairly shocking for those involved. […]

Can biologists estimate the massive loss of shellfish caused by low tides, high temps?

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The putrid smell of rotting shellfish on some beaches in Puget Sound and elsewhere along the West Coast were a clear sign that large numbers of clams, mussels, oysters and other intertidal creatures were killed from exposure to extreme low tides, record-breaking temperatures and a blazing hot sun. The total losses of shellfish that perished late last month may be difficult to estimate, but experts are beginning to piece together evidence from shoreline residents, state and tribal biologists, and commercial shellfish growers. Their goal is to describe what took place […]

As in a pandemic, the battle against invasive species may well depend on early actions

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As Americans, we have become all too familiar with the spread of a deadly virus and the terrible consequences of a delayed response to an outbreak. As a result of our experience, I’m wondering if some of us might have a more visceral sense about the need to control invasive species. I’m not saying that the ecological, economic and cultural disturbances wrought by invasive species are on par with a massive loss of human life. But the common denominator is a biological perturbation that occurs suddenly and threatens to expand […]