Plattform Platform	Reise-Nr. Cruise-No.	Zeitraum Period	Projekt Project	Arbeitsgebiet Working area
Dana	10-2019_WH424	03.01.2019 - 22.01.2019	IBTS	North Sea

Fahrtleiter Chief Scientist	Institut Institute	Auslaufhafen Port of departure	Einlaufhafen Port of return	Stationskarte Station map	Schiffsroute Trackchart
Kloppmann Matthias	Thunen-Institut fur Seefischerei	Esbjerg	Hirtshals	Karte Map

Ziel der Reise / Objectives of Cruise:

The International Bottom Trawl Survey (IBTS) is an internationally coordinated ICES program. The survey aims to provide ICES assessment and science groups with consistent and standardized data for examining spatial and temporal changes in (a) the distribution and relative abundance of fish and fish assemblages; and (b) of the biological parameters of commercial fish species for stock assessment purposes. The main objectives are to: ? To determine the distribution and relative abundance of pre-recruits of the main commercial species with a view of deriving recruitment indices; ? To monitor changes in the stocks of commercial fish species independently of commercial fisheries data; ? To monitor the distribution and relative abundance of all fish species and selected invertebrates; ? To collect data for the determination of biological parameters for selected species; ? To collect hydrographical and environmental information; ? To determine the abundance and distribution of late herring larvae. Itinerary: 03.01.2019 (12:30) Embarkation of cruise participants 03.01.2019 (16:00) Depart Esbjerg, Denmark 04.01.2019 (08:00) Start sampling in central North Sea 08.01.2019 (07:00) Dock and shelter in Esbjerg from a passing storm 09.01.2019 (16:00) Depart Esbjerg, Denmark 09.01.2019 (21:00) Resume sampling in southeastern North Sea 13.01.2019 (08:00) Dock and shelter in Hirtshals from a passing storm 15.01.2019 (02:00) Depart Hirtshals, Denmark 15.01.2019 (19:00) Resume sampling in southeastern and central North Sea 22.01.2019 (10:30) Curtail sampling, start journey to home port 22.01.2019 (20:30) Dock Hirtshals

Messungen / Measurements