Panasiuk, Anna; Vortkamp, Martina; Viquerat, Sacha; Herr, Helena: Macrozooplankton abundance from net trawls collected during expedition MSM115 along the Western Antarctic Peninsula during March 2023 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.984307 (dataset in review)
Abstract:
Count data for net trawls collected along the Western Antarctic peninsula during March 2023 on board Maria S. Merian. Macrozooplankton samples were collected along a pre-designed set of 53 stations following the zig-zag design of the visual survey. We used a rectangular midwater trawl RMT8+1 following the guidelines of CCAMLR for standardised krill surveys. The RMT8+1 consists of a rectangular frame with an effective mouth opening of 8 m² (RMT-8) equipped with a 4.5 mm mesh krill net, plus on top a 300 µm zooplankton net with an effective mouth opening of 1 m² (RMT-1). The RMT was equipped with a pressure sensor to record the depth of the net during trawling. A Hydrobios impeller flowmeter was used to estimate the volume of water sampled in m³. Double oblique hauls were conducted up to a depth of 200 m, or 10 m above the seabed if the water column depth was shallower than 200 m. Additional comparative catches were taken at two stations for day/night and deep/shallow comparisons.
Project(s):
Funding:
German Research Foundation (DFG), grant/award no. 5472008: Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas
German Research Foundation (DFG), grant/award no. HE 5696/3-1: Recovery status and ecology of fin whales (Balaenoptera physalus) at the West Antarctic Peninsula
German Research Foundation (DFG), grant/award no. HE 5696/3-2: Recovery status and ecology of fin whales (Balaenoptera physalus) at the West Antarctic Peninsula
Coverage:
Median Latitude: -61.104295 * Median Longitude: -55.289384 * South-bound Latitude: -62.777793 * West-bound Longitude: -64.112079 * North-bound Latitude: -60.152237 * East-bound Longitude: -45.028962
Date/Time Start: 2023-03-01T01:43:40 * Date/Time End: 2023-03-17T11:53:09
Minimum DEPTH, water: 0 m * Maximum DEPTH, water: 200 m
Event(s):
MSM115_1-2 * Latitude Start: -62.777793 * Longitude Start: -64.112079 * Latitude End: -62.753849 * Longitude End: -64.069713 * Date/Time Start: 2023-03-01T01:43:40 * Date/Time End: 2023-03-01T02:39:30 * Elevation Start: -4378.0 m * Elevation End: -4392.0 m * Location: Drake Passage * Campaign: MSM115 (FINWAP) * Basis: Maria S. Merian * Method/Device: Rectangular midwater trawl (RMT)
MSM115_2-2 * Latitude Start: -62.761261 * Longitude Start: -63.194740 * Latitude End: -62.740884 * Longitude End: -63.150267 * Date/Time Start: 2023-03-01T05:58:19 * Date/Time End: 2023-03-01T06:40:45 * Elevation Start: -1864.0 m * Elevation End: -1973.0 m * Location: Drake Passage * Campaign: MSM115 (FINWAP) * Basis: Maria S. Merian * Method/Device: Rectangular midwater trawl (RMT)
MSM115_3-2 * Latitude Start: -62.744504 * Longitude Start: -62.275762 * Latitude End: -62.727439 * Longitude End: -62.238542 * Date/Time Start: 2023-03-01T09:48:08 * Date/Time End: 2023-03-01T10:26:33 * Location: Drake Passage * Campaign: MSM115 (FINWAP) * Basis: Maria S. Merian * Method/Device: Rectangular midwater trawl (RMT)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Panasiuk, Anna | |||
| 2 | Date/Time of event | Date/Time | Panasiuk, Anna | |||
| 3 | Latitude of event | Latitude | Panasiuk, Anna | |||
| 4 | Longitude of event | Longitude | Panasiuk, Anna | |||
| 5 | Elevation of event | Elevation | m | Panasiuk, Anna | ||
| 6 | Area/locality | Area | Panasiuk, Anna | |||
| 7 | Transect number | Transect no | Panasiuk, Anna | |||
| 8 | Station label | Station | Panasiuk, Anna | finwap station | ||
| 9 | Method comment | Method comm | Panasiuk, Anna | cast valid for a quantitaive analysis? | ||
| 10 | Station label | Station | Panasiuk, Anna | during MSM115 | ||
| 11 | Cast number | Cast | Panasiuk, Anna | |||
| 12 | Depth, water, bottom/maximum | Depth water bot | m | Panasiuk, Anna | max fishing depth | |
| 13 | Device type | Device | Panasiuk, Anna | device and collector used | ||
| 14 | DEPTH, water | Depth water | m | Panasiuk, Anna | Geocode – start trawling | |
| 15 | DEPTH, water | Depth water | m | Panasiuk, Anna | Geocode – end trawling | |
| 16 | Water volume, filtered | Vol filtered | m3 | Panasiuk, Anna | Flowmeter (HydroBios) | |
| 17 | Date/time start | Date/time start | Panasiuk, Anna | start trawling | ||
| 18 | Date/time end | Date/time end | Panasiuk, Anna | end trawling | ||
| 19 | Trawling distance | Trawl dis | m | Panasiuk, Anna | ||
| 20 | Trawling speed | Trawl speed | m/s | Panasiuk, Anna | ||
| 21 | Identification | ID | Panasiuk, Anna | Internal ID for species | ||
| 22 | Species, unique identification | Species UID | Panasiuk, Anna | Visual inspection | ||
| 23 | Species, unique identification (URI) | Species UID (URI) | Panasiuk, Anna | Visual inspection | ||
| 24 | Occurrence | Occur | Panasiuk, Anna | Visual inspection | present or absent | |
| 25 | Number of individuals | Ind No | # | Panasiuk, Anna | ||
| 26 | Taxon, abundance | Taxon abund | #/1000 m3 | Panasiuk, Anna | Calculated | |
| 27 | Quality flag, counts | QF counts | Panasiuk, Anna | |||
| 28 | Identification | ID | Panasiuk, Anna | Event ID in ship log | ||
| 29 | Identification | ID | Panasiuk, Anna | Device ID in ship log | ||
| 30 | Identification | ID | Panasiuk, Anna | internal numeric ID of species |
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:
35703 data points
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