Bornemann, Horst; Middleton, Leo; Schröder, Henning; Wege, Mia (2025): Immobilisation dose rates for Weddell seals during expedition PS146 (FIL2025) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.982958
Always quote citation above when using data! You can download the citation in several formats below.
Published: 2025-06-18 • DOI registered: 2025-06-18
Abstract:
Weddell seals (Leptonychotes weddellii) were immobilised during expedition PS146 (FIL2025) for the purpose of deployments with Conductivity, Temperature, Depth, Satellite Relay Data Loggers (CTD SRDL) and SCOUT CTD 370 FastLoc GPS satellite tags (SCOUT CTD). The CTD SRDL and SCOUT CTD tag deployments (n=13) were located at around the Filchner-Outflow-System (FOS) of the Filchner Trough, southern Weddell Sea. The seals were captured along the ships' tracks during ahead flights of the board helicopter and immobilised on fast (bay) and pack ice and captured along tidal cracks within and on ice flows and immobilised and instrumented with with Argos-linked (CLS, Toulouse, France) CTD SRDL (Sea Mammal Research Unit, UK) and SCOUT CTD tags (Wildlife Computers, US) to investigate their ranging and foraging behaviour in the context of oceanographic features.
Related to:
Wege, Mia; Middleton, Leo; Schröder, Henning; Janout, Markus A; Darelius, Elin; Bornemann, Horst (in prep.): Seals and oceanography at the Filchner-Ronne shelf ecosystem II (SEAROSE II). In: Boebel O & Janout M The Expediton PS146 of the Research Vessel POLASTERN to the Weddell Sea in 2024/2025, Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research
Project(s):
Marine Mammal Tracking (MMT)
Coverage:
Median Latitude: -76.593405 * Median Longitude: -33.542649 * South-bound Latitude: -77.762530 * West-bound Longitude: -49.360080 * North-bound Latitude: -74.487030 * East-bound Longitude: -25.851220
Date/Time Start: 2025-02-01T11:20:00 * Date/Time End: 2025-02-09T14:35:00
Event(s):
FIL2025_wed_a_f_01 * Latitude Start: -77.706170 * Longitude Start: -34.252330 * Latitude End: -77.706170 * Longitude End: -34.252330 * Date/Time Start: 2025-02-01T11:20:00 * Date/Time End: 2025-02-01T12:08:00 * Location: Southern Ocean - Atlantic Sector * Campaign: FIL2025 (PS146) * Basis: Polarstern * Method/Device: Marine endotherm (MET) * Comment: Leptonychotes weddellii, adult female
FIL2025_wed_a_f_02 * Latitude Start: -77.762530 * Longitude Start: -34.817330 * Latitude End: -77.762530 * Longitude End: -34.817330 * Date/Time Start: 2025-02-01T12:38:00 * Date/Time End: 2025-02-01T13:32:00 * Location: Southern Ocean - Atlantic Sector * Campaign: FIL2025 (PS146) * Basis: Polarstern * Method/Device: Marine endotherm (MET) * Comment: Leptonychotes weddellii, adult female
FIL2025_wed_a_f_03 * Latitude Start: -77.762530 * Longitude Start: -34.817330 * Latitude End: -77.762530 * Longitude End: -34.817330 * Date/Time Start: 2025-02-01T13:58:00 * Date/Time End: 2025-02-01T15:08:00 * Location: Southern Ocean - Atlantic Sector * Campaign: FIL2025 (PS146) * Basis: Polarstern * Method/Device: Marine endotherm (MET) * Comment: Leptonychotes weddellii, adult female
Parameter(s):
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
200 data points
Data
| 1 Event | 2 Date/Time | 3 Latitude | 4 Longitude | 5 Spec code | 6 Sample label (immobilisation procedure) | 7 Mass [kg] (Estimated) | 8 I std [mm] (Ruler tape) | 9 g std [mm] (Ruler tape) | 10 Phys rest | 11 Premedication (Injection) | 12 Additives (Injection) | 13 Time of day (first injection) | 14 Xylazine [mg] (initial dose, Injection) | 15 Ketamine [mg] (initial dose, Injection) | 16 Time of day (second injection) | 17 Xylazine [mg] (Injection) | 18 Ketamine [mg] (Injection) | 19 Time of day (third injection) | 20 Ketamine [mg] (Injection) | 21 Time of day | 22 Diazepam [mg] (Injection) | 23 Time of day | 24 Doxapram [mg] | 25 Time of day | 26 Atipamezol [mg] (Injection) | 27 Comment |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| FIL2025_wed_a_f_01 | 2025-02-01T11:20 | -77.70617 | -34.25233 | Weddell seal, adult female | 1 | 300 | 2470 | 1890 | no | no | no | 11:20 | 1000 | 1300 | 12:08 | 100 | successful immobilisation, SCOUT CTD | |||||||||
| FIL2025_wed_a_f_02 | 2025-02-01T12:38 | -77.76253 | -34.81733 | Weddell seal, adult female | 1 | 300 | 2550 | 1770 | no | no | no | 12:38 | 1000 | 1300 | 13:32 | 100 | successful immobilisation, SCOUT CTD | |||||||||
| FIL2025_wed_a_f_03 | 2025-02-01T13:58 | -77.76253 | -34.81733 | Weddell seal, adult female | 1 | 350 | 2480 | 1920 | no | no | no | 13:58 | 1000 | 1300 | 15:08 | 100 | successful immobilisation, CTD SRDL | |||||||||
| FIL2025_wed_a_f_04 | 2025-02-01T16:35 | -77.74313 | -34.73711 | Weddell seal, adult female | 1 | 250 | 2220 | 1670 | no | no | no | 16:35 | 1000 | 1300 | 14:30 | 250 | 200 | 14:20 | 20 | 17:17 | 100 | successful immobilisation, SCOUT CTD | ||||
| FIL2025_wed_a_m_05 | 2025-02-03T16:48 | -77.38431 | -49.36008 | Weddell seal, adult male | 1 | 250 | 2180 | 1790 | no | no | no | 16:48 | 1000 | 1300 | 17:30 | 100 | successful immobilisation, flat breathing, SCOUT CTD | |||||||||
| FIL2025_wed_a_f_06 | 2025-02-04T14:10 | -77.00589 | -40.15053 | Weddell seal, adult female | 1 | 350 | 2330 | 1850 | no | no | no | 14:10 | 1000 | 1100 | 14:37 | 125 | 100 | 14:45 | 100 | 14:33 | 20 | 15:18 | 100 | successful immobilisation, CTD SRDL | ||
| FIL2025_wed_a_f_07 | 2025-02-04T16:37 | -76.61861 | -35.88908 | Weddell seal, adult female | 1 | 300 | 2310 | 1750 | no | no | no | 16:37 | 1000 | 1100 | 17:42 | 80 | 17:22 | 100 | died post narcosis due to irreversible apnaea | |||||||
| FIL2025_wed_a_f_08 | 2025-02-05T10:10 | -76.75667 | -31.49233 | Weddell seal, adult female | 1 | 250 | 2110 | 1620 | no | no | no | 10:10 | 1000 | 800 | 10:58 | 100 | successful immobilisation, SCOUT CTD | |||||||||
| FIL2025_wed_a_f_09 | 2025-02-05T12:20 | -76.75667 | -31.49233 | Weddell seal, adult female | 1 | 350 | 2450 | 1770 | no | no | no | 12:20 | 1000 | 800 | 13:35 | 100 | successful immobilisation, CTD SRDL | |||||||||
| FIL2025_wed_a_m_10 | 2025-02-05T13:46 | -76.75667 | -31.49233 | Weddell seal, adult male | 1 | 350 | 2350 | 1880 | no | no | no | 13:46 | 1000 | 800 | 14:40 | 100 | successful immobilisation, CTD SRDL | |||||||||
| FIL2025_wed_a_m_11 | 2025-02-09T12:15 | -74.48703 | -25.85122 | Weddell seal, adult male | 1 | 350 | 2470 | 1890 | no | no | no | 12:15 | 1000 | 800 | 12:38 | 20 | 13:05 | 100 | successful immobilisation, CTD SRDL | |||||||
| FIL2025_wed_a_f_12 | 2025-02-09T13:20 | -74.48703 | -25.85122 | Weddell seal, adult female | 1 | 400 | 2570 | 1790 | no | no | no | 13:20 | 1000 | 800 | 14:10 | 100 | successful immobilisation, CTD SRDL | |||||||||
| FIL2025_wed_a_f_13 | 2025-02-09T14:35 | -74.48703 | -25.85122 | Weddell seal, adult female | 1 | 400 | 2550 | 2150 | no | no | no | 14:35 | 1000 | 800 | 14:58 | 20 | 15:22 | 100 | successful immobilisation, SCOUT CTD |