Dataset: seep stations
Deployment: AT15-44

Samples were taken at methane seeps on the Costa Rica Margin  (8o 55.8 N 84o 18.7 W) and at Hydrate Ridge, Oregon Margin (44o 34'N, 125o 9 W).

field investigations (collections and experiments) were carried out using the submersible ALVIN on the RV Atlantis at methane seeps on the Costa Rica margin during 2009 (AT 15-44) and 2010 (AT 15-59 funded by OCE 0939557).  To compliment the studies of carbonate ecosystems off Costa Rica, but in a lower-oxygen realm, we examined parallel ecosystems and conducted parallel colonization experiments at Hydrate Ridge methane seeps. AT 15-68 was conducted with ALVIN at the northern, southern and southeast summits of Hydrate Ridge from July 30-Aug. 9, 2010, and AT 18-10 was conducted with ROV Jason, to recover experiments placed at Hydrate Ridge in 2010.