FRV Clupea 1596C
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | FRV Clupea (74CU) |
| Cruise identifier | 1596C |
| Cruise period | 1996-10-03 — 1996-10-21 |
| Status | Completed |
| Port of departure | Fraserburgh, United Kingdom |
| Port of return | Fraserburgh, United Kingdom |
| Purpose | Research |
| Objectives | To carry out an echo-integrator survey to determine biomass and distribution of pelagic fish in the Moray Firth. Trawling was carried out in areas with high densities of pelagic fish in order to determine fish species and size composition, weight-length relationships and to collect samples of herring, sprat and sandeels for subsequent diet analysis in the laboratory. To determine the numbers and distribution of mammalian and avian predators using transect census methods. To determine spatial variation in water temperature and salinity depth profiles using a CTD recorder and to collect water samples for nutrient, chlorophyll and radio isotope analysis. To determine spatial variation in zooplankton density using Dutch Gulf III and Methot net samplers. |
| Chief scientist | Simon Greenstreet (Scottish Office Agriculture Environment and Fisheries Department Aberdeen Marine Laboratory) |
| Cruise report |  (0.46 MB) |
| Ocean/sea areas | |
| General | North Sea |
| Specific | North Sea, Inner Moray Firth |
| Track charts |  |
| Measurements | |
| Physical oceanography | |
| CTD stations | Quantity: number of profiles = 50 Description: 2 with S only |
| Chemical oceanography | |
| Phosphate | Quantity: number of profiles = 50 |
| Nitrate | Quantity: number of profiles = 50 |
| Ammonia | Quantity: number of profiles = 50 |
| Silicate | Quantity: number of profiles = 50 |
| Biology and fisheries | |
| Zooplankton | Quantity: number of hauls = 25 Description: Methot Net |
| Zooplankton | Quantity: number of hauls = 50 Description: Dutch Gulf 3 hauls |
| Birds | Description: Throughout, Birds, seals, cetaceans |
| Mammals and reptiles | Description: Throughout, Birds, seals, cetaceans |
| Pelagic fish | Quantity: number of hauls = 12 Description: International Young Gadoid Pelagic Trawls. |
| Acoustic reflection on marine organisms. | Description: Throughout, Echo integrator |
| Geology and geophysics | |
| Multi-beam echosounding | Description: Throughout, Echo integrator |
