©2020 Biological and Chemical Oceanography Data Management Office.This dataset documents macrofaunal communities associated with hard substrates (carbonate, phosphorite, and wood) collected from methane seeps in the Southern California Borderland. Samples were obtained with the HOV Alvin during R/V Atlantis cruise AT50-12 (July 16–28, 2023). The dataset provides morphospecies-level counts of macrofauna together with collection and sample metadata.
Views
Downloads
These numbers come from Google Analytics and reflect real user activity on the site. They reliably show page usage and are mostly free of bot traffic.
Hard-substrate samples were collected using the manipulator arm of the HOV Alvin and stored in individual compartments of a biobox mounted on the vehicle’s basket. Upon recovery and before preservation, samples were kept cold. Individual animals were hand-picked to provide tissue for stable isotope analyses (see related datasets). The remaining material was sieved through a 0.3 mm mesh to generate two fractions: a fine fraction (meiofauna) and a coarse fraction (macrofauna). Both fractions were preserved in 95% ethanol.
Lee, K., Pereira, O. S., Levin, L. A. (2025) Macrofaunal morphospecies from hard-substrate methane seep samples collected on R/V Atlantis cruise AT50-12, Southern California Borderland from July 2023 (Methanosphere project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2025-09-24 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.964636.1 [access date]
Terms of Use
This dataset is licensed under Creative Commons Attribution 4.0.
If you wish to use this dataset, it is highly recommended that you contact the original principal investigators (PI). Should the relevant PI be unavailable, please contact BCO-DMO (info@bco-dmo.org) for additional guidance. For general guidance please see the BCO-DMO Terms of Use document.