PANGAEA_995125
Harbour and grey seal counts in the Elbe Estuary, Germany, between Wedel and Scharhörn in 2023/2024
Taupp, Thomas; Gmeiner, Isabell; Michel, Lucie; Avila, Isabel Cristina; Nachtsheim, Dominik Andre; Siebert, Ursula; Winkelmann, Carola
Harbour and grey seal counts in the Elbe Estuary, Germany, between Wedel and Scharhörn in 2023/2024
2026-05-28
PANGAEA
Dataset
https://doi.pangaea.de/10.1594/PANGAEA.995125
Investigator
Thomas
Taupp
taupp@bafg.de
Earth Science
Event label
DATE/TIME
LATITUDE
LONGITUDE
Phoca vitulina, adult
Phoca vitulina, juvenil
Halichoerus grypus
geoscientificInformation
Aerial survey
Aircraft
Elbe_Estuary_2023-2024
Elbe Estuary
Grey seal
Halichoerus grypus
Harbour seal
Monitoring report
Phoca vitulina
Counting, visual
2023-08-16
2024-07-08
Complete
53.54928919
53.99521859
8.37365018
9.814018333
unrestricted
CC-BY-4.0: Creative Commons Attribution 4.0 International
English
PANGAEA
Data Publisher for Earth & Environmental Science
https://www.pangaea.de/
Data Center Contact
Michael
Diepenbroek
info@pangaea.de
Leobener Str.
Bremen
Bremen
28359
Germany
online
1911 data points
text/tab-separated-values
Bundesanstalt für Gewässerkunde (2026): Seehunde und Kegelrobben im Elbeästuar von Wedel bis Scharhörn 2023/2024. Bundesanstalt für Gewässerkunde, Koblenz, BfG-2241, https://doi.org/10.5675/BfG-2241
Aerial surveys were conducted in the Elbe Estuary, Germany, to count seals on their haul-out sites. Haul-out sites were located within the intertidal zone, usually close to the waterway or tidal creeks. The north-western border of the study area was located at the approximate river-km 753 (island of Scharhörn) and the south-eastern border was located at river-km 632 (Mühlenberger Loch). Flights were performed monthly from August 2023 until July 2024 (11 flights in total) at low tide. Within each month, a flight date in the middle of the month was chosen, depending on the tide and weather conditions. The flight scheduled for December 2023 had to be canceled due to persistently unfavorable weather conditions. Flights were performed with a twin-engined aircraft at a height of approximately 500 feet and at an average speed of 100 knots. The flight routes were tracked via GPS. Sighted seals were photographed on their haul-out sites and the corresponding geographic position was recorded. In the office, the photos were used to identify the species and age class, and count the animals. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.995125"!
http://en.wikipedia.org/wiki/ISO_6709
LATITUDE
http://en.wikipedia.org/wiki/ISO_6709
LONGITUDE
http://en.wikipedia.org/wiki/ISO_8601
DATE/TIME
http://www.marinespecies.org/aphia.php?p=taxdetails&id=137080
Halichoerus grypus
https://doi.org/10.5675/BfG-2241
Seehunde und Kegelrobben im Elbeästuar von Wedel bis Scharhörn 2023/2024
DIF
9.4
2026-05-28
2026-06-02