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We've know for quite some time that the Chesapeake is suffering the aggregated effects of our unmindful land and water use. Recently, the Chesapeake Bay Foundation (CBF linked above) released a report (link here for the pdf) that ties the decline of the Blue Crab with the Chesapeake's worsening waters which are tied to our farming and waste disposal practices here in Centre County. They report:
Less Crab habitat Sediment from runoff and algal blooms caused by nitrogen and phosphorus pollution are darkening the Bay’s waters, killing the underwater grasses that young crabs need as shelter from predators. More than half of the Bay’s eelgrass has died since the early 1970s.In total, it is a steady choking of all of the life in the bay. We care most about the crabs because we eat them and sell them. They feed our economy as they feed us. In 1993, 347 million crabs were caught in the Chesapeake. Last year, just 132 million - a nearly two-thirds decline. That 1993 catch is larger than the current estimated population of all crabs in the bay. We in Pennsylvania, through waste runoff into streams like Penns Creek (pictured below) are starving them.
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Perhaps we ought to reach out to these folks and see what we can learn from them.
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