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
23.3.2024