Push cores (6.35 cm diameter) of sediment were collected in situ using the manipulator arm of the Hybrid Remotely Operated Vehicle Nereus on the margin of the Kermadec Trench (6013m) and along the main trench axis (7137 to 9177m) at roughly 1000m increments.
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The 0-1, 1-2, 2-3, 3-5, 5-10 cm depth horizons were sectioned for all cores.
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Macrofauna (>300 microns) were enumerated and identified to major taxonomic groups (16 total) based on the published morphological descriptions of the taxonomic groups.\u00a0 The data present the total number of individuals in each of these groups in each core.
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Attempts were made to obtain 3 replicate cores at each depth horizon (every 1000 meters from 6000m to 10,000m.\u00a0 For logistical reasons with vehicle performance (and loss at 10,000), all of the replicates were not able to be collected.
This dataset includes raw counts of macrofauna families identified in push core samples taken in the Kermadec Trench in the Southwest Pacific, 4000 to ~10,000m from the RV/ Thomas G. Thompson during cruise TN309 (HADES-K), May 2014.
BCO-DMO Processing Notes:
\n- added conventional header with dataset name, PI name, version date
\n- modified parameter names to conform with BCO-DMO naming conventions
\n- re-formatted date from m/d/yyyy to yyyy-mm-dd
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