1 / 4

ismet
Download Presentation

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. The urchin on the right, grown in seawater under today's air conditions (400 ppm), is healthy and has normal spines. The urchin on the left, grown under very high CO2 conditions (2,850 ppm), is substantially damaged by the more acidic conditions. Weighing the urchins confirmed that they were actually dissolving in the more acidic high CO2 conditions.(Micrograph below by Justin Ries, WHOI, and photo by Tom Kelindinst, WHOI)

  2. In a surprising result, the lobster on the right, grown under a very high level of CO2 (2,850 ppm, or 10 times pre-industrial levels) grew a larger, heavier shell than the lobster on the left, grown under today's CO2 level (400 ppm). (Photo courtesy of Justin Ries, University of North Carolina)

  3. Blue crabs (Callinectessapidus) grown for two months under today's CO2 levels of 400 ppm (left) and under very high CO2levels of 2,850 (right). This species showed an unexpected response to CO2 level—the crab grown under the highest level (representing ten times the level of CO2 in the pre-industrial atmosphere) grew a heavier, larger shell. (Photos courtesy of Justin Ries, University of North Carolina)

  4. On the left, a conch from seawater under today's CO2 levels (400 parts per million, or ppm) has a normal shell, with normal bumpy protuberances. The conch on the right, reared under very high CO2 conditions (2,850 ppm), has a shell that has begun to deteriorate, its protuberances dissolved away in the more acidic seawater. (Photo by Tom Kleindinst, Woods Hole Oceanographic Institution)

More Related