Deutsches Ozeanographisches
Datenzentrum Inventur der Poseidon-Reise POS520 (DOD-Ref-No.20180076)
Inventory of Poseidon Cruise POS520 (DOD-Ref-No.20180076)

Plattform
Platform
Reise-Nr.
Cruise-No.
Zeitraum
Period
Projekt
Project
Arbeitsgebiet
Working area
Poseidon POS520 14.02.2018 - 01.03.2018   Equatorial East Atlantic  

Fahrtleiter
Chief Scientist
Institut
Institute
Auslaufhafen
Port of departure
Einlaufhafen
Port of return
Stationskarte
Station map
Schiffsroute
Trackchart
Hoving Hendrik Jan Thies GEOMAR Helmholtz-Zentrum fur Ozeanforschung Kiel Mindelo Mindelo   

Ziel der Reise / Objectives of Cruise:

The aim of this cruise was to investigate the biodiversity, abundance and distribution of pelagic fauna, including nekton and macrozooplankton, in the deep-sea ecosystem of Cape Verde, and to combine biological observations with chemical and physical observations. We used the manned submersible JAGO (14 dives), the towed camera system PELAGIOS (9 deployments), and two kinds of multinet (midi and maxi) (9 and 12 hauls respectively), as well as CTD sampling to collect hydrographic data and environmental DNA samples. In the leeway of the islands Santo Ant?o and Fogo we performed mesopelagic stations (1000 m) and bathypelagic stations (3000 m) using the mentioned instruments. Elaborate physical sampling around the islands was performed using CTD, microstructure and ADCP. A mesoscale eddy was sampled with all our oceanographic instruments. Additionally we performed a full oceanographic and biological sampling at the Cape Verde Ocean Observatory, north of Sao Vicente. Our sampling provided one of the first views on the nearshore pelagic deep-sea ecosystem of Cape Verde using our observational instruments, and the biological specimens collected resulted in unique photographic and biological records of poorly known organisms. The data will contribute to establish baseline biological observations of the Cape Verdean deep sea, and to investigate the role of large pelagic fauna, including gelatinous macrozooplankton, in the transport of carbon from the water column to the seafloor.

Messungen / Measurements

Institut
Institute
Wissenschaftler
Scientist
Anzahl
Number
Einheit
Unit
Typ der Messungen
Type of measurements
Kommentar
Comments
Daten im DOD
Data in DOD
GEOMAH Hauss Helena 14 profiles B01
Primary productivity
CTD Nutrients, 212 samples to be analysed on shore. no
GEOMAH Hauss Helena 9 profiles B09
Zooplankton
Multinet midi, 45 samples (including day and night samples) to be analysed on shore, biodiversity, abundance and distribution analysis. no
GEOMAH Hauss Helena 12 profiles B09
Zooplankton
Multinet maxi, 108 samples (including day and night samples) to be analysed on shore, max. depth 2500 m, about 17 hours of video collected on multinet, to be analysed on shore, biodiversity, abundance and distribution analysis. no
GEOMAH Hoving Hendrik Jan Thies 9 profiles B09
Zooplankton
PELAGIOS, towed camera, approximately 27 hours of video to be analysed on shore (including day and night tows), biodiversity, abundance and distribution analysis. no
GEOMAH Hissmann Karen 15 diving(s) B09
Zooplankton
Open water dives with manned submersible JAGO at day and night time, total dive time 43h37min, survey depth 25-376 m, USBL position data for each dive, 8 different dive participants, 34h19min video recordings, biodiversity, abundance and distribution analysis. no
GEOMAH Hissmann Karen 35 hauls B09
Zooplankton
Samples of pelagic organisms taken during submersible dives with scoop tubes and suction sampler to be analysed on board the vessel and ashore. no
NMNH Osborn Karen 281 samples B09
Zooplankton
Voucher biological specimens, To be analyzed ashore. no
NMNH Osborn Karen 344 samples B09
Zooplankton
Barcode samples, To be analyzed ashore. no
NMNH Osborn Karen 2696 Film(s) B09
Zooplankton
Photo vouchers, To be analyzed ashore. no
GEOMAH Merten Veronique 121 samples B09
Zooplankton
Tissue samples for barcoding; analysis on shore: Barcoding . no
GEOMAH Hauss Helena 9 profiles B11
Nekton
Multinet midi, 45 samples (including day and night samples) to be analysed on shore, biodiversity, abundance and distribution analysis. no
GEOMAH Hauss Helena 12 profiles B11
Nekton
Multinet maxi, 108 samples (including day and night samples) to be analysed on shore, max. depth 2500 m, about 17 hours of video collected on multinet, to be analysed on shore, biodiversity, abundance and distribution analysis. no
GEOMAH Hoving Hendrik Jan Thies 9 profiles B11
Nekton
PELAGIOS, towed camera, approximately 27 hours of video to be analysed on shore (including day and night tows), biodiversity, abundance and distribution analysis. no
GEOMAH Hissmann Karen 15 diving(s) B11
Nekton
Open water dives with manned submersible JAGO at day and night time, total dive time 43h37min, survey depth 25-376 m, USBL position data for each dive, 8 different dive participants, 34h19min video recordings, biodiversity, abundance and distribution analysis. no
NMNH Osborn Karen 344 samples B11
Nekton
Barcode samples, To be analyzed ashore. no
NMNH Osborn Karen 2696 Film(s) B11
Nekton
Photo vouchers, To be analyzed ashore. no
GEOMAH Merten Veronique 121 samples B11
Nekton
Tissue samples for barcoding; analysis on shore: Barcoding . no
GEOMAH Hoving Hendrik Jan Thies 9 profiles B14
Pelagic fish
PELAGIOS, towed camera, approximately 27 hours of video to be analysed on shore (including day and night tows), biodiversity, abundance and distribution analysis. no
GEOMAH Hissmann Karen 15 diving(s) B14
Pelagic fish
Open water dives with manned submersible JAGO at day and night time, total dive time 43h37min, survey depth 25-376 m, USBL position data for each dive, 8 different dive participants, 34h19min video recordings, biodiversity, abundance and distribution analysis. no
GEOMAH Hoving Hendrik Jan Thies 9 profiles B20
Molluscs
PELAGIOS, towed camera, approximately 27 hours of video to be analysed on shore (including day and night tows), biodiversity, abundance and distribution analysis. no
GEOMAH Hissmann Karen 15 diving(s) B20
Molluscs
Open water dives with manned submersible JAGO at day and night time, total dive time 43h37min, survey depth 25-376 m, USBL position data for each dive, 8 different dive participants, 34h19min video recordings, biodiversity, abundance and distribution analysis. no
GEOMAH Hoving Hendrik Jan Thies 9 profiles B21
Crustacean
PELAGIOS, towed camera, approximately 27 hours of video to be analysed on shore (including day and night tows), biodiversity, abundance and distribution analysis. no
GEOMAH Hissmann Karen 15 diving(s) B21
Crustacean
Open water dives with manned submersible JAGO at day and night time, total dive time 43h37min, survey depth 25-376 m, USBL position data for each dive, 8 different dive participants, 34h19min video recordings, biodiversity, abundance and distribution analysis. no
GEOMAH Hissmann Karen 35 hauls B21
Crustacean
Samples of pelagic organisms taken during submersible dives with scoop tubes and suction sampler to be analysed on board the vessel and ashore. no
GEOMAH Hoving Hendrik Jan Thies 9 profiles B90
Other biological / fishery measurements
PELAGIOS, towed camera, approximately 27 hours of video to be analysed on shore (including day and night tows), biodiversity, abundance and distribution analysis. no
GEOMAH Hissmann Karen 15 diving(s) B90
Other biological / fishery measurements
Open water dives with manned submersible JAGO at day and night time, total dive time 43h37min, survey depth 25-376 m, USBL position data for each dive, 8 different dive participants, 34h19min video recordings, biodiversity, abundance and distribution analysis. no
GEOMAH Merten Veronique 6 profiles B90
Other biological / fishery measurements
Vertical CTD profiles for collecting water samples for eDNA; analysis on shore: Metabarcoding. no
GEOMAH Schutte Florian 17 day(s) D71
Current profiler (e.g. ADCP)
Underway measurements of the Vessel-mounted ADCP . no
GEOMAH Schutte Florian 65 profiles D90
Other physical oceanographic measurements
Shipboard microstructure measurements. no
GEOMAH Schutte Florian 14 profiles H09
Water bottle stations
CTD, temperature and salinity profiles. no
GEOMAH Schutte Florian 14 profiles H10
CTD-Stations
CTD, temperature and salinity profiles. no
GEOMAH Hissmann Karen 9 profiles H11
Sub-surface measurements underway (T, S)
CTD, depth, temperature and salinity profiles; recorded with small SAIV A/S SD204 CTD attached to the stern of the submersible JAGO. no
GEOMAH Schutte Florian 14 profiles H21
Oxygen
Oxygen by Winkler titration. no
16.11.2019