Zooplankton abundance from ROV net samples during the MOSAiC expedition (PS122) in the Central Arctic Ocean
Cornils, Astrid; Flores, Hauke; Wermeyer, Kim Julie; Anhaus, Philipp; Katlein, Christian; Ashjian, Carin; Campbell, Robert G; Castellani, Giulia; Gelfman, Cecilia; Hildebrandt, Nicole; Knüppel, Nadine; Sakinan, Serdar; Schmidt, Katrin; Svenson, Anders; Schaafsma, Fokje L; Shoemaker, Katyanne; Vortkamp, Martina; Niehoff, Barbara
Cornils, Astrid; Flores, Hauke; Wermeyer, Kim Julie; Anhaus, Philipp; Katlein, Christian; Ashjian, Carin; Campbell, Robert G; Castellani, Giulia; Gelfman, Cecilia; Hildebrandt, Nicole; Knüppel, Nadine; Sakinan, Serdar; Schmidt, Katrin; Svenson, Anders; Schaafsma, Fokje L; Shoemaker, Katyanne; Vortkamp, Martina; Niehoff, Barbara (2024): Zooplankton abundance from ROV net samples during the MOSAiC expedition (PS122) in the Central Arctic Ocean [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.968954,
In: Cornils, A et al. (2024): Zooplankton abundance, biovolume, biomass and respiration from ROV net samples during the MOSAiC expedition (PS122) in the Central Arctic Ocean [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.968897

ELEVATION: -4413.4 m
O2A REGISTRY URI: https://registry.o2a-data.de/items/650
CAMPAIGN: PS122/1 (MOSAiC20192020)
BASIS: Polarstern
METHOD/DEVICE: Remotely operated sensor platform BEAST (BEAST)
COMMENT: 20191110_1: net dive with CTD (RBR)

ELEVATION: -4398.1 m
O2A REGISTRY URI: https://registry.o2a-data.de/items/650
CAMPAIGN: PS122/1 (MOSAiC20192020)
BASIS: Polarstern
METHOD/DEVICE: Remotely operated sensor platform BEAST (BEAST)
COMMENT: 20191206_1: 24h net dives, 1 of 4; 10 m depth; 20191206_net2: rov net; under-ice dive; 20191206_net3: rov net 10 m; no gypsum net; ROV net dive: under ice, no gypsum net; ROV net dive: 20 m, no gypsum net; 20191207: 10m Net dive; no gypsum net; 20191206_1: 2nd dive, under-ice; no gypsum net; 20191206_1: dive3, 20m; no gypsum net; rov net: 10 m,no gypsum net ; rov net: under ice, no gypsum net; rov net 20191206_1: 20 m, no gypsum net

ELEVATION: -4404.3 m
O2A REGISTRY URI: https://registry.o2a-data.de/items/650
LOCATION: Arctic Ocean
CAMPAIGN: PS122/2 (MOSAiC20192020)
BASIS: Polarstern
METHOD/DEVICE: Remotely operated sensor platform BEAST (BEAST)
COMMENT: ECO Dive: Sediment trap trials, ROV-Net, Fishing line to Ocean city; pause survey; Restart; Mission start: ROVnet 10m depth; Mission start: ROVnet ice interface

ELEVATION START: -4409.2 m
ELEVATION END: -4408.8 m
LOCATION: Arctic Ocean
COMMENT: ROV net & Sediment trap deployments; ROVnet 10m start trawling; ROVnet 10m stop trawling; Sediment trap installed, silver, 7.0m; Sediment trap installed, 3.0m

Start of Event: PS122/2_19-115
ELEVATION START: -4409.2 m
LOCATION: Arctic Ocean
COMMENT: ROV net & Sediment trap deployments; ROVnet 10m start trawling; ROVnet 10m stop trawling; Sediment trap installed, silver, 7.0m; Sediment trap installed, 3.0m

ELEVATION END: -4408.8 m
COMMENT: ROV net & Sediment trap deployments; ROVnet 10m start trawling; ROVnet 10m stop trawling; Sediment trap installed, silver, 7.0m; Sediment trap installed, 3.0m

ELEVATION START: -4422.6 m
ELEVATION END: -4422.6 m
COMMENT: Nets,Suction Sampling, Stakes, Vertical profile; Start survey; ROVnet start trawling surface; ROVnet end trawling surface; ROVnet start trawling 10m; ROVnet end trawling 10m; End survey

Start of Event: PS122/2_20-101
COMMENT: Nets,Suction Sampling, Stakes, Vertical profile; Start survey; ROVnet start trawling surface; ROVnet end trawling surface; ROVnet start trawling 10m; ROVnet end trawling 10m; End survey

COMMENT: Nets,Suction Sampling, Stakes, Vertical profile; Start survey; ROVnet start trawling surface; ROVnet end trawling surface; ROVnet start trawling 10m; ROVnet end trawling 10m; End survey

COMMENT: ROVnet surface, 10m, ridge, 0-50m 2 filming dives; Launch vehicle; Start survey; ROVnet start trawling surface; ROVnet end trawling surface; ROVnet start trawling surface (short); ROVnet end trawling surface (short); ROVnet start trawling 10m; ROVnet end trawling 10m; ROVnet start trawling ridge; Net in transport mode (45° pitch); ROVnet end trawling ridge; ROVnet start trawling Vshape 0-50m; ROVnet end trawling Vshape 0-50m; End survey & recover ROV

Start of Event: PS122/2_21-125
COMMENT: ROVnet surface, 10m, ridge, 0-50m 2 filming dives; Launch vehicle; Start survey; ROVnet start trawling surface; ROVnet end trawling surface; ROVnet start trawling surface (short); ROVnet end trawling surface (short); ROVnet start trawling 10m; ROVnet end trawling 10m; ROVnet start trawling ridge; Net in transport mode (45° pitch); ROVnet end trawling ridge; ROVnet start trawling Vshape 0-50m; ROVnet end trawling Vshape 0-50m; End survey & recover ROV

COMMENT: Grid inspection, ROVnets surface&10m, Trap deployments; Launch vehicle; ROVnet start trawling, surface; ROVnet stop trawling, surface; ROVnet start trawling, 10m; ROVnet stop trawling, 10m; Vehicle recovered

COMMENT: Nets, Ridge, Acoustics, ...; Start work; Launch vehicle; Start survey; ROVnet start trawling surface; ROVnet stop trawling surface; ROVnet start trawling 10m; ROVnet stop trawling 10m; End survey; Recover ROV

COMMENT: ROV nets, surface, 2x 10m, deployment of frazil test rope, vertical profile, sediment trap deployment, Ridge ADCP cleaning; Launch vehicle; Start survey; ROVnet start trawling surface; ROVnet stop trawling surface; ROVnet start trawling 10m; ROVnet stop trawling 10m; ROVnet start trawling 10m (second net); end survey; recover ROV

COMMENT: Nets, optics; ROV in the water; ROV recovered

End of Event: PS122/3_32-78
COMMENT: Nets, optics; ROV in the water; ROV recovered

COMMENT: Nets trawl at 72m; stop trawl at 72m; nets trawl at 10m; stop trawl at 10m; start nets trawl close to surface; stop nets trawl at surface; start optics, searching and checking deployments; Optics, searching and checking deployments

End of Event: PS122/3_35-32
COMMENT: Nets trawl at 72m; stop trawl at 72m; nets trawl at 10m; stop trawl at 10m; start nets trawl close to surface; stop nets trawl at surface; start optics, searching and checking deployments; Optics, searching and checking deployments

COMMENT: start net trawl at 72.5 m; stop 72.5 m trawl; start 10 m trawl; stop 10 m trawl; start surface trawl; stop surface trawl; start optics, searching for lost deployments; ROV recovered

End of Event: PS122/3_35-95
COMMENT: start net trawl at 72.5 m; stop 72.5 m trawl; start 10 m trawl; stop 10 m trawl; start surface trawl; stop surface trawl; start optics, searching for lost deployments; ROV recovered

COMMENT: nets, optics, short multibeam, video footage cracks; ROV in the water; start net trawl at 75 m depth; end net trawl 75 m depth; start net trawl at 10 m depth; end net trawl 10 m depth; start net trawl surface; survey 20200418_1 stopped due to unknown reasons

COMMENT: net trawls and optics; ROV in the water; start net trawl 95 m; stop net trawl 95 m due to issues with nets, going back to hole; ROV and net recovered; stop net trawl 95 m, going up; start net trawl 10 m; stop net trawl 10 m ; start net trawl surface; stop net trawl surface; check transponder positions optics grid depth profile optics along crack; ROV recovered

COMMENT: start net trawl 75 m depth; stop net trawl 75 m depth; start net trawl 10 m depth; stop net trawl 10 m depth; start net trawl surface; stop net trawl surface; optics grid, depth profile, lead & stern stakes, optic transects David's ridge, stable marker positions; ROV recovered

COMMENT: net trawls at 95m, 10m, surface optics (grid, depth profile, roll experiment, stable marker, transects at David's Ridge) multibeam David's Ridge; ROV in the water; ROV recovered

COMMENT: Setup dive before the 24h cycle dives and 1st dive of 24h cycle. Sediment trap deployment, 1 optics transect, 3 net tows

COMMENT: 2nd dive of 24h cycle. Optics transect, 3 net tows

COMMENT: 3rd dive of 24h cycle. Optics transect, 3 net tows

COMMENT: 4th dive of 24h cycle. Optics transect, 3 net tows

COMMENT: 5th dive of 24h cycle. 3x sediment trap recovery, Optics transect, 3 net tows

COMMENT: ROV net tows: surface and 10 meters