FFS Walther Herwig III 419
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | FFS Walther Herwig III (06NI) |
| Cruise identifier | 419 |
| Cruise period | 2018-08-21 — 2018-09-09 |
| Status | Completed |
| Port of departure | Bremerhaven, Germany |
| Port of return | Bremerhaven, Germany |
| Purpose | Research |
| Objectives | Integrated Monitoring of Contaminants and their Biological Effects (INMON)
Projects DAIMON and PlasM Objectives 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. Tissue sampling of livers and other organs for subsequent histological and biochemical analyses. 5. Studies and sampling for the DAIMON and PlasM projects. 6. Hydrographical measurements (salinity, temperature, oxygen, turbidity). 7. Sediment sampling. 8. Sea surface trawling for plastic particles using a Neuston net. As part of the integrated monitoring programme of the Thünen 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 four Baltic Sea and seven North Sea areas. In addition to the onboard examination of dab (Limanda limanda) 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 (incl. radioactive substances) and their biological effects. As part of the DAIMON project, extensive studies were carried out on the health status of cod in a dumping area for chemical munitions in Bornholm Basin and in a reference area outside the Gulf of Gdansk. Furthermore, sediment samples were taken and, in the framework of the PlasM project, neuston samples from the water surface for investigations on plastic particles were collected. In addition, hydrographical measurements were carried out (water temperature, salinity, oxygen content, turbidity). |
| Chief scientist | Thomas Lang (Thünen Institute of Sea Fisheries, Bremerhaven) |
| Cruise report |  (0.43 MB) |
| NPRC | (1.53 MB) |
| Ocean/sea areas | |
| General | North Sea |
