| Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
|---|---|---|---|---|
| Poseidon | POS532 | 04.02.2019 - 24.02.2019 | NE Atlantic (Limit 40?W) |
| Fahrtleiter Chief Scientist | Institut Institute | Auslaufhafen Port of departure | Einlaufhafen Port of return | Stationskarte Station map | Schiffsroute Trackchart |
|---|---|---|---|---|---|
| Hoving Hendrik Jan Thies | Helmholtz Centre for Ocean Research Kiel (GEOMAR) | Mindelo | Mindelo |
Ziel der Reise / Objectives of Cruise:
The aim of this cruise was to investigate the role of gelatinous zooplankton in the biological carbon pump, i.e. transporting carbon from the surface into the deep sea. In addition, the cruise aimed to better understand the biodiversity, abundance and distribution of pelagic fauna including nekton and macrozooplankton in the Cape Verde region, and to provide one of the first bottom surveys in the coastal deep seas of Cape Verde. The latter resulting in new faunal records and biological observations. We used the manned submersible JAGO (17 dives), the towed camera system PELAGIOS (13 deployments), and two kinds of multinet (midi and maxi) (14 and 7 hauls respectively). Biological specimens were preserved as voucher specimens and samples were obtained for DNA barcoding. CTD sampling was performed to collect hydrographic data. We also collected water samples for environmental DNA and to analyze these samples in the lab for traces of deep-sea organisms such cephalopods. To quantify pelagic biomass and track migration via bioacoustics we used an EK80. Elaborate physical sampling around the islands was performed using CTD and ADCP. 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. An offshore 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.
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 | 7 | profiles | B09 Zooplankton |
63 formaldehyde-fixed zooplankton samples from Multinet Maxi, to be analyzed on shore, biodiversity, abundance and distribution. | no |
| GEOMAH | Hauss Helena | 14 | profiles | B09 Zooplankton |
70 formaldehyde-fixed zooplankton samples from Multinet Midi, to be analyzed on shore, biodiversity, abundance and distribution. | no |
| GEOMAH | Hoving Hendrik Jan Thies | 13 | profiles | B09 Zooplankton |
3 PELAGIOS and 10 PELAGIOS II in total 21 hours of pelagic transect video to be analysed on shore (including day and night tows), biodiversity, abundance and distribution analysis. | no |
| GEOMAH | Hissmann Karen | 17 | diving(s) | B09 Zooplankton |
13 scientific open water dives with manned submersible JAGO at day and night time, 3 bottom survey dives, 1 test dive, total dive time 45h42min, survey depth 25-385 m, USBL position data for each dive, 8 different dive participants, 38h04min HD video recordings (2.8 TB). | no |
| GEOMAH | Hissmann Karen | 40 | hauls | B09 Zooplankton |
Collection of pelagic organisms during submersible dives with scoop tubes and suction sampler, to be analysed on board the vessel and ashore. | no |
| NMNH | Osborn Karen | 579 | Individual | B09 Zooplankton |
Biological specimens collected for further analysis onshore. | no |
| NMNH | Osborn Karen | 3042 | image(s) | B09 Zooplankton |
Scientific voucher photographs for analysis onshore. | no |
| GEOMAH | Hauss Helena | 7 | profiles | B11 Nekton |
63 formaldehyde-fixed zooplankton samples from Multinet Maxi, to be analyzed on shore, biodiversity, abundance and distribution. | no |
| GEOMAH | Hauss Helena | 14 | profiles | B11 Nekton |
70 formaldehyde-fixed zooplankton samples from Multinet Midi, to be analyzed on shore, biodiversity, abundance and distribution. | no |
| GEOMAH | Hoving Hendrik Jan Thies | 13 | profiles | B11 Nekton |
3 PELAGIOS and 10 PELAGIOS II in total 21 hours of pelagic transect video to be analysed on shore (including day and night tows), biodiversity, abundance and distribution analysis. | no |
| GEOMAH | Hissmann Karen | 17 | diving(s) | B11 Nekton |
13 scientific open water dives with manned submersible JAGO at day and night time, 3 bottom survey dives, 1 test dive, total dive time 45h42min, survey depth 25-385 m, USBL position data for each dive, 8 different dive participants, 38h04min HD video recordings (2.8 TB). | no |
| NMNH | Osborn Karen | 3042 | image(s) | B11 Nekton |
Scientific voucher photographs for analysis onshore. | no |
| GEOMAH | Hoving Hendrik Jan Thies | 13 | profiles | B14 Pelagic fish |
3 PELAGIOS and 10 PELAGIOS II in total 21 hours of pelagic transect video to be analysed on shore (including day and night tows), biodiversity, abundance and distribution analysis. | no |
| GEOMAH | Hissmann Karen | 17 | diving(s) | B14 Pelagic fish |
13 scientific open water dives with manned submersible JAGO at day and night time, 3 bottom survey dives, 1 test dive, total dive time 45h42min, survey depth 25-385 m, USBL position data for each dive, 8 different dive participants, 38h04min HD video recordings (2.8 TB). | no |
| GEOMAH | Hoving Hendrik Jan Thies | 13 | profiles | B20 Molluscs |
3 PELAGIOS and 10 PELAGIOS II in total 21 hours of pelagic transect video to be analysed on shore (including day and night tows), biodiversity, abundance and distribution analysis. | no |
| GEOMAH | Hissmann Karen | 17 | diving(s) | B20 Molluscs |
13 scientific open water dives with manned submersible JAGO at day and night time, 3 bottom survey dives, 1 test dive, total dive time 45h42min, survey depth 25-385 m, USBL position data for each dive, 8 different dive participants, 38h04min HD video recordings (2.8 TB). | no |
| GEOMAH | Hoving Hendrik Jan Thies | 13 | profiles | B21 Crustacean |
3 PELAGIOS and 10 PELAGIOS II in total 21 hours of pelagic transect video to be analysed on shore (including day and night tows), biodiversity, abundance and distribution analysis. | no |
| GEOMAH | Hissmann Karen | 17 | diving(s) | B21 Crustacean |
13 scientific open water dives with manned submersible JAGO at day and night time, 3 bottom survey dives, 1 test dive, total dive time 45h42min, survey depth 25-385 m, USBL position data for each dive, 8 different dive participants, 38h04min HD video recordings (2.8 TB). | no |
| GEOMAH | Hissmann Karen | 40 | hauls | B21 Crustacean |
Collection of pelagic organisms during submersible dives with scoop tubes and suction sampler, to be analysed on board the vessel and ashore. | no |
| GEOMAH | Hoving Hendrik Jan Thies | 13 | profiles | B90 Other biological / fishery measurements |
3 PELAGIOS and 10 PELAGIOS II in total 21 hours of pelagic transect video to be analysed on shore (including day and night tows), biodiversity, abundance and distribution analysis. | no |
| GEOMAH | Klimmeck Jens | 18 | hour(s) | B90 Other biological / fishery measurements |
Video recordings for outreach and science communication purposes. | no |
| GEOMAH | Klimmeck Jens | 480 | image(s) | B90 Other biological / fishery measurements |
For outreach and science communication purposes. | no |
| GEOMAH | Hissmann Karen | 17 | diving(s) | B90 Other biological / fishery measurements |
13 scientific open water dives with manned submersible JAGO at day and night time, 3 bottom survey dives, 1 test dive, total dive time 45h42min, survey depth 25-385 m, USBL position data for each dive, 8 different dive participants, 38h04min HD video recordings (2.8 TB). | no |
| NMNH | Osborn Karen | 517 | samples | B90 Other biological / fishery measurements |
517 DNA extracts/RNAlater samples for analysis onshore. | no |
| GEOMAH | Scheer Stella Luna | 15 | profiles | B90 Other biological / fishery measurements |
180 filtered water samples for eDNA analysis. | no |
| GEOMAH | Merten Veronique | 15 | profiles | B90 Other biological / fishery measurements |
180 filtered water samples for eDNA analysis. | no |
| GEOMAH | Hans Anna Christina | 21 | day(s) | D71 Current profiler (e.g. ADCP) |
Underway measurements using the vessel-mounted ADCP at 300hHz. | no |
| GEOMAH | Hauss Helena | 10 | profiles | D71 Current profiler (e.g. ADCP) |
Acoustic profiles using a Simrad EK80 echosounder. | no |
| GEOMAH | Hans Anna Christina | 26 | profiles | H09 Water bottle stations |
CTD profiles hydrography. | no |
| GEOMAH | Hans Anna Christina | 26 | profiles | H10 CTD-Stations |
CTD profiles hydrography. | no |
| GEOMAH | Hans Anna Christina | 21 | day(s) | H71 Surface measurements underway (T, S) |
Underway measurements using the vessel-mounted thermosalinograph. | no |