Plattform Platform	Reise-Nr. Cruise-No.	Zeitraum Period	Projekt Project	Arbeitsgebiet Working area
Walther Herwig III	WH429	14.08.2019 - 03.09.2019	DAIMON PLASM	North Sea Baltic Sea

Fahrtleiter Chief Scientist	Institut Institute	Auslaufhafen Port of departure	Einlaufhafen Port of return	Stationskarte Station map	Schiffsroute Trackchart
Lang Thomas	Institut fur Fischereiokologie der VTIG Hamburg	Bremerhaven	Bremerhaven	Karte Map

Ziel der Reise / Objectives of Cruise:

WH429: Objectives of the Cruise 1. Studies on biological effects of contaminants; 2. Studies on the occurrence of fish diseases and parasites; 3. Sampling of fish for chemical analysis of contaminants; 4. Sampling of fish and water for measurement of radioactive substances (collaboration with Univ. Hannover); 5. Tissue sampling of livers and other organs for subsequent histological and biochemical analyses (collaboration with Univ. Tartu); 6. Studies and sampling for the DAIMON2 project, including sampling of digestive tracts of cod for microbial studies (collaboration with Univ. Warszawa); 7. Hydrographical measurements (salinity, temperature, oxygen, turbidity). As part of the integrated monitoring programme of the Thunen Institute of Fisheries Ecology (FI) on contaminants and biological effects (incl. fish diseases) in fish from the North Sea and Baltic Sea, studies were carried out in five Baltic Sea and seven North Sea areas. In addition to the onboard examination of dab (Limanda limanda), flounder (Platichtys flesus) and cod (Gadus morhua) for macroscopic externally and internally visible diseases and parasites, a large range of fish samples were taken for a subsequent analysis of contaminants (organic, inorganic and radioactive substances) and their biological effects. As part of the DAIMON2 project, extensive studies were carried out on the health status of cod in a dumping area for chemical munitions in Bornholm Basin and in Baltic Sea reference areas. Furthermore, hydrographical measurements were carried out (water temperature, salinity, oxygen content) and water samples were taken for measurement of radioactive substances.

Messungen / Measurements