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Award: OCE-2048720

Award Title: Collaborative Research: Redefining the footprint of deep ocean methane seepage for benthic ecosystems

Funding Source: NSF Division of Ocean Sciences (NSF OCE)

Program Manager: Cynthia Suchman

Dataset	Latest Version Date	Current State
Stable Isotope Data for Invertebrates Collected from Southern California Seeps in May and August 2021	2022-08-11	Final
Rock macrofaunal community from samples collected at methane seeps off Southern California with the HOV Alvin from July 16-28, 2023 during R/V Atlantis cruise AT50-12	2024-01-17	Final
Pushcore macrofaunal community from samples collected at methane seeps off Southern California with the HOV Alvin from July 16-27, 2023 during R/V Atlantis cruise AT50-12	2024-02-07	Final
Invertebrate stable isotopes from samples collected at methane seeps off Southern California with the HOV Alvin from July 16-28, 2023 during R/V Atlantis cruise AT50-12	2025-02-07	Final
Macrofaunal morphospecies from hard-substrate methane seep samples collected on R/V Atlantis cruise AT50-12, Southern California Borderland from July 2023 (Methanosphere project)	2025-09-24	Final
Carbonate rock macrofauna collected by HOV Alvin during R/V Atlantis cruise AT50-24 at Sanak Seep Alaska from May 30 to June 6, 2024	2025-09-19	Final
C and N stable isotope data for invertebrates collected by HOV Alvin during R/V Atlantis cruise AT50-24 at Sanak Seep Alaska from May 16 to June 5, 2024	2025-09-23	Final
Water column methane, methane oxidation, and pmoA gene copies above southern California methane seeps determined from samples collected on R/V Atlantis cruise AT50-12 in July 2023	2025-12-08	Final
Water column methane, methane oxidation, and pmoA gene copies above methane seeps determined from samples collected off the Aleutian Islands, Gulf of Alaska on R/V Atlantis cruise AT50-24 in May to June 2024	2025-12-09	Final

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Principal Investigator: Lisa A. Levin (University of California-San Diego Scripps Inst of Oceanography)