RV Prince Madog PD36/05
Cruise plan
| Cruise Info. | |
| Ship name (ship code) | RV Prince Madog (74P2) |
| Cruise identifier | PD36/05 |
| Cruise period | 2005-09-20 — 2005-09-27 |
| Status | Completed |
| Port of departure | Menai Bridge, United Kingdom |
| Port of return | Menai Bridge, United Kingdom |
| Purpose | Research |
| Objectives | Overall aims of the project are to measure the impact of nutrients on the primary productivity in the Irish Sea using new techniques such as fast rate repetition fluorometry (FRRF) and pulse amplitude modulation fluorometry (PAM).
The plan was to carry out 13-25 hour anchor stations on stations GY-T1, DB-T1, CB-T1, HH-T1, and LB-T1. Due to bad weather station GY-T1 had to be abandoned after 6 hours. Station CB-T1 could not be visited due to the weather and was substituted with 25 hours at station 100. Station HH-T1 was substituted with 25 hours at HHA-T1. Station LB-T1 could not be visited and was substituted with 25 hours at LBHH3-T1. Transit stations were occupied according to the original plan, with the exception of stations M61, M66, 81, LBHH-5 and LBHH-4 which could not be visited due to the weather. |
| Chief scientist | Ole Aarup Mikkelsen (University of Wales, Bangor School of Ocean Sciences) |
| Project | MATSIS |
| Coordinating body | SOS (UWB) and Marine Institute (Ireland) |
| Ocean/sea areas | |
| General | Irish Sea and St. George's Channel |
| Specific | Irish Sea, Liverpool Bay |
| Track charts |  (0.06 MB) |
| Measurements | |
| Physical oceanography | |
| Surface measurements underway (T,S) | Quantity: activity duration in days = 8 Description: Underway meas. Of T, S, Fluor., turbidity |
| Water bottle stations | Quantity: number of stations = 27 Description: Particulate and dissolved organic and inorganic N |
| Water bottle stations | Quantity: number of stations = 27 Description: Particulate and dissolved organic and inorganic P |
| Water bottle stations | Quantity: number of stations = 47 Description: Bottles always fired at surface and bottom and occasionally at mid-depth |
| Water bottle stations | Quantity: number of stations = 47 Description: Suspended matter concentration, chl, particulate absorption, yellow substance, HPLC |
| CTD stations | Quantity: number of stations = 127 Description: CTD data collected with a SeaBird 911 Plus CTD equipped with a LISST-25 and a LISST-100 |
| Optics (eg underwater light levels) | Quantity: number of stations = 60 Description: Secchi Disk |
| Optics (eg underwater light levels) | Quantity: number of stations = 60 Description: Underwater light profiles with PRR600 and Satlantic MicroProfiler |
| Current profiler (eg ADCP) | Quantity: activity duration in days = 8 Description: Currents from 300 kHz RDI Workhorse ADCP |
| Chemical oceanography | |
| Other chemical oceanographic measurements | Quantity: number of stations = 27 Description: Particulate and dissolved organic and inorganic N |
| Other chemical oceanographic measurements | Quantity: number of stations = 27 Description: Particulate and dissolved organic and inorganic P |
| Contamination | |
| Suspended matter | Quantity: number of stations = 47 Description: Suspended matter concentration, chl, particulate absorption, yellow substance, HPLC |
| Other contaminant measurements | Quantity: number of stations = 127 Description: LISST-FLOC profiles for in situ suspended particle size spectra |
| Biology and fisheries | |
| Phytoplankton pigs (eg chlorophyll, fluorescence) | Quantity: number of stations = 126 Description: Fast Repetition Rate Fluorometry profiles |
| Phytoplankton pigs (eg chlorophyll, fluorescence) | Quantity: activity duration in days = 8 Description: Underway fluorescence measurements by PAM flow-through fluorometer |
| Phytoplankton | Quantity: number of stations = 3 Description: Phytoplankton net samples |
| Meteorology | |
| Routine standard measurements | Quantity: activity duration in days = 8 Description: Underway measurement of standard met. Parameters |
