RRS Challenger CH92
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS Challenger (74CH) |
| Cruise identifier | CH92 |
| Cruise period | 1992-05-25 — 1992-06-10 |
| Status | Completed |
| Port of departure | Plymouth, United Kingdom |
| Port of return | Barry, United Kingdom |
| Purpose | Research |
| Objectives | The main objective of the cruise, to determine hydro/biological conditions and the distribution of larval sardine (Sardina pilchardus) along the north and west coasts of Spain was completed successfully. No major gear or operational problems were encountered. |
| Chief scientist | Stephen H Coombs (Plymouth Marine Laboratory) |
| Project | EC SARP PROJECT MA 1.96 |
| Coordinating body | AWI, Bremerhaven, Germany |
| Cruise report |  (0.69 MB) |
| Ocean/sea areas | |
| General | North East Atlantic Ocean (limit 40W) |
| Specific | N & W coasts of Spain, within 50nm of shore |
| Track charts |  |
| Measurements | |
| Physical oceanography | |
| Surface measurements underway (T,S) | Quantity: activity duration in days = 17 Description: continuous |
| Water bottle stations | Quantity: number of profiles = 80 Description: profiles of particle size spectra at several depths |
| CTD stations | Quantity: number of profiles = 113 |
| Subsurface temperature and salinity measurements | Quantity: number of deployments = 13 Description: undulator tows 0-50m depth for temperature, conductivity (salinity) |
| Transparency (eg transmissometer) | Quantity: number of profiles = 113 Description: Transmissometer attached to CTD |
| Optics (eg underwater light levels) | Quantity: number of profiles = 113 Description: Irradiance meter attached to CTD |
| Chemical oceanography | |
| pH | Quantity: number of profiles = 113 Description: pH meter attached to CTD |
| Contamination | |
| Petroleum residues | Quantity: number of samples = 2 Description: Plankton samples taken for pollution studies |
| Chlorinated hydrocarbons | Quantity: number of samples = 2 Description: Plankton samples taken for pollution studies |
| Contaminants in organisms | Quantity: number of samples = 2 Description: Plankton samples taken for pollution studies |
| Biology and fisheries | |
| Phytoplankton pigs (eg chlorophyll, fluorescence) | Quantity: number of deployments = 13 Description: undulator tows with fluorometer for fluorescence (chlorophyll a) |
| Phytoplankton pigs (eg chlorophyll, fluorescence) | Quantity: activity duration in days = 17 Description: continuous underway measurements of fluorescence (for chlorophyll a) |
| Phytoplankton pigs (eg chlorophyll, fluorescence) | Quantity: number of profiles = 113 Description: Fluorometer (for chlorophyll) attached to CTD |
| Zooplankton | Quantity: number of hauls = 90 Description: Bongo net stations for 200micron and 53micron plankton samples |
| Zooplankton | Quantity: number of hauls = 7 Description: Vertically stratified plankton sampling stations, 200 and 53micron net systems |
| Eggs and larvae | Quantity: number of hauls = 90 Description: Bongo net stations |
| Eggs and larvae | Quantity: number of hauls = 7 |
| Other biological/fisheries measurement | Quantity: number of profiles = 80 Description: profiles of particle size spectra at several depths |
