Bonk, Frederic; Kaiser, Stefanie; Oldeland, Jens; Martínez-Arbizu, Pedro: Metazoan meiofauna densities from abyssal and hadal depths of the North Pacific trenches, 2012-2022 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.993630 (dataset in review)
Abstract:
This dataset provides quantitative abundance data for metazoan meiofauna from deep-sea sediments of the Northern North Pacific Ocean. The data are presented as densities (individuals per 10 cm²) for major taxonomic groups (e.g., Nematoda, Copepoda, Kinorhyncha) at the level of individual sediment cores, stations, and expeditions. These data were collected to identify the primary environmental drivers shaping meiofaunal community structure across abyssal and hadal depth gradients. The dataset compiles samples collected during three expeditions aboard the German research vessel RV Sonne: 1, Kurambio I (SO223) in 2012 to the Kuril-Kamchatka Trench (KKT); 2, Kurambio II (SO250) in 2016 to the Kuril-Kamchatka Trench (KKT); 3, AleutBio (SO293) in 2022 to the Aleutian Trench (AT). All samples were collected using a multicorer (MUC). The top 5 cm of sediment from each core was preserved in 4% buffered formalin, and meiofauna were subsequently extracted and identified to higher taxonomic levels. The dataset includes permanent meiofauna and copepod nauplii; juvenile stages of typical macrofaunal taxa (e.g., Polychaeta, Isopoda) were excluded. This final dataset comprises 190 individual cores from 66 stations, spanning a depth range from 4,304 to 9,541 meters. It integrates new data from the AleutBio expedition with a complete re-assessment of raw data from the Kurambio I and II expeditions. Please note that samples collected in the Bering Sea were excluded from this dataset due to low sample coverage.
Supplement to:
Kaiser, Stefanie; Bonk, Frederic; Oldeland, Jens; Chih Lin, Wei; Brandt, Angelika; Martínez Arbizu, Pedro (submitted): Environmental predictors of benthic meiofaunal densities in the abyssal and hadal zones of the North Pacific. Hydrobiologia
Funding:
Coverage:
Median Latitude: 46.382308 * Median Longitude: 165.156407 * South-bound Latitude: 39.723610 * West-bound Longitude: 147.166900 * North-bound Latitude: 53.600460 * East-bound Longitude: -161.213916
Date/Time Start: 2012-07-29T14:06:00 * Date/Time End: 2022-08-30T16:47:00
Minimum Elevation: -9538.6 m * Maximum Elevation: -7.7 m
Event(s):
SO223-1-6 * Latitude: 43.969170 * Longitude: 157.331170 * Date/Time: 2012-07-29T14:06:00 * Elevation: -5409.6 m * Location: North Pacific Ocean * Campaign: SO223 (KuramBio) * Basis: Sonne * Method/Device: MultiCorer (MUC)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Bonk, Frederic | |||
| 2 | Cruise/expedition | Expedition | Bonk, Frederic | |||
| 3 | Project | Project | Bonk, Frederic | |||
| 4 | Location ID | Loc ID | Bonk, Frederic | |||
| 5 | Depth zone | Depth zone | Bonk, Frederic | |||
| 6 | Location | Location | Bonk, Frederic | |||
| 7 | LATITUDE | Latitude | Bonk, Frederic | Geocode | ||
| 8 | LONGITUDE | Longitude | Bonk, Frederic | Geocode | ||
| 9 | ELEVATION | Elevation | m a.s.l. | Bonk, Frederic | Geocode | |
| 10 | Date/Time of event | Date/Time | Bonk, Frederic | |||
| 11 | DEPTH, sediment/rock | Depth sed | m | Bonk, Frederic | Geocode | |
| 12 | Depth, sediment/rock, top/minimum | Depth sed top | m | Bonk, Frederic | ||
| 13 | Depth, sediment/rock, bottom/maximum | Depth sed bot | m | Bonk, Frederic | ||
| 14 | Copepoda | Copepoda | #/10 cm2 | Bonk, Frederic | Calculated | |
| 15 | Copepoda, nauplii | Copepoda naup | #/10 cm2 | Bonk, Frederic | Calculated | |
| 16 | Kinorhyncha | Kinorhyncha | #/10 cm2 | Bonk, Frederic | Calculated | |
| 17 | Gastrotricha | Gastrotricha | #/10 cm2 | Bonk, Frederic | Calculated | |
| 18 | Tardigrada | Tardigrada | #/10 cm2 | Bonk, Frederic | Calculated | |
| 19 | Loricifera | Loricifera | #/10 cm2 | Bonk, Frederic | Calculated | |
| 20 | Tantulocarida | Tantulocarida | #/10 cm2 | Bonk, Frederic | Calculated | |
| 21 | Acari | Acari | #/10 cm2 | Bonk, Frederic | Calculated | |
| 22 | Nematoda | Nematoda | #/10 cm2 | Bonk, Frederic | Calculated | |
| 23 | Ostracoda | Ostracoda | #/10 cm2 | Bonk, Frederic | Calculated | |
| 24 | Abundance | Abund | #/10 cm2 | Bonk, Frederic | Calculated | total |
| 25 | Abundance | Abund | #/10 cm2 | Bonk, Frederic | Calculated | densities per 10 cm2 |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
3610 data points
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