June 22nd, 2010 
The ‘hidden’ ecological catastrophe is manifesting itself….
Starting yesterday night we have been seeing a large number of dead sea cucumbers floating on the surface. These animals live on the bottom of the ocean where they feed on sediment and suspended organic matter. I would estimate the number of dead sea cucumbers to be in the thousands and their cause of death is obviously related to the oil spill. Possible causes include direct contact with oil, the dispersant or oxygen depletion as a result of the spill.
Pictures of thousands of dead floating sea cucumber at the surface will make gut wrench but can be seen, along with the rest of the article, at Scientific American. This finding is part the R/V Cape Hatteras expedition to the Gulf to estimate how the methane is being removed from the water column. Hat tip to Chris M for destroying my morning.
[...] This post was mentioned on Twitter by RJS, Andrew Thaler and -b-, Chris Rowan. Chris Rowan said: Mass Murder of Sea Cucumbers near the Deepwater Site http://bit.ly/bZLBd3 [...]
I would caveat the article that the pic is NOT what’s coming up dead. Its possible that we may be seeing the first sign of deep-sea mortality..but we need to see some of the critters for correct identification to be sure.
There could also be a mixture of holothurian species.
[...] Mass Murder of Sea Cucumbers near the Deepwater Site [Via Deep Sea News] The ‘hidden’ ecological catastrophe is manifesting itself…. Starting yesterday night we have been seeing a large number of dead sea cucumbers floating on the surface. These animals live on the bottom of the ocean where they feed on sediment and suspended organic matter. I would estimate the number of dead sea cucumbers to be . . . → Read More: Mass Murder of Sea Cucumbers near the Deepwater Site [...]
I feel like I will never hear any good news about the deep sea again, after this spill.