Shellfish First Victims Of Rising CO2 In The Oceans

shellfish 02 Shellfish First Victims Of Rising CO2 In The Oceans

By the end of the century, the shellfish species could disappear completely if the amount of C02 into the atmosphere doesn’t decrease. Oceans take up carbon dioxide as it’s produced into the atmosphere and it’s then converted to carbonic acid in the ocean. This acid reduces the availability of calcium carbonate needed by shellfish to produce their shells. The more carbon dioxide in the ocean, the less carbonate is available to those who use it.

Even now, with the ocean being as acidic as it is, shellfish, plankton, sea urchins, starfish, and coral may have difficulty forming their skeletons. Dr. Richard Feely, an oceanographer working at the Pacific Marine Environmental Laboratory in Seattle says that water samples show a 30 percent increase in the amount of acidity compared with 200 years ago. Unlike lakes hurt by acid rain that can be treated with alkaline products, the ocean is too big to be treated the same way. The only way to help the oceans is to emit less carbon dioxide.

shellfish 03 Shellfish First Victims Of Rising CO2 In The Oceans

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Global Warming Gives Us Crabs

crabs 0031 Global Warming Gives Us Crabs

The crabs are gearing up for a takeover. Not of humans, thankfully, but of other species in the Antarctic Peninsula. Which could lead to serious consequences.

While crabs and other swift predators were once stymied by the Arctic Ocean’s cold temperatures, millions of years of climate change have heated the waters, giving them an open door to make their way back.

As scientists explain it, crabs aren’t able to handle the high levels of magnesium that build up in their bloodstream while traversing cold water. Too much magnesium in the system causes them to pass out and pass away. On the other hand, those species that aren’t affected by the excessive amounts have been able to travel freely. But as the temperatures warm, crab populations have been able to move into more shallow areas, threatening the lives of such magnesium-immune dwellers as ribbon worms and sea stars.

crabs 002 Global Warming Gives Us Crabs

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