Deutsches Ozeanographisches
Datenzentrum
Inventur der Johan Hjort-Reise 2009218 (DOD-Ref-No.20100358)
Inventory of Johan Hjort Cruise 2009218 (DOD-Ref-No.20100358)
Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
---|---|---|---|---|
Johan Hjort | 2009218 | 22.07.2009 - 31.07.2009 | North Sea |
Fahrtleiter Chief Scientist | Institut Institute | Auslaufhafen Port of departure | Einlaufhafen Port of return | Stationskarte Station map | Schiffsroute Trackchart |
---|---|---|---|---|---|
Oien Nils | Institute of Marine Research Bergen | Bergen | Bergen |
Ziel der Reise / Objectives of Cruise:
The objective of the cruise is to collect sightings information for estimating abundance of whales, especially minke whales, as part of a long-term survey program to cover the Northeast Atlantic over the years 2008-2013. The survey vessel has followed predetermined tracklines on which observations of whales have been recorded by dedicated observers. Data collected for each observation include: Species, position, position relative to vessel, weather data and other covariates. We have also conducted experiments on whale observer's judgments of distance with the help of ordinary buoys at 1-2 nautical miles distance.
Messungen / Measurements
Institut Institute |
Wissenschaftler Scientist |
Anzahl Number |
Einheit Unit |
Typ der Messungen Type of measurements |
Kommentar Comments |
Daten im DOD Data in DOD |
---|---|---|---|---|---|---|
IMRN | Oien Nils | 45 | obs. | B26 Mammals and reptiles |
Absolute and relative positions of whales determined to species seen in primary search mode on the track-lines. | no |