Cruise inventory

RV Prince Madog PD36/05

Cruise plan

Cruise Info. 
Ship name (ship code)RV Prince Madog (74P2)
Cruise identifierPD36/05
Cruise period2005-09-20 — 2005-09-27
StatusCompleted
Port of departureMenai Bridge, United Kingdom
Port of returnMenai Bridge, United Kingdom
PurposeResearch
ObjectivesOverall 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 scientistOle Aarup Mikkelsen (University of Wales, Bangor School of Ocean Sciences)
ProjectMATSIS
Coordinating bodySOS (UWB) and Marine Institute (Ireland)
Ocean/sea areas 
GeneralIrish Sea and St. George's Channel
SpecificIrish Sea, Liverpool Bay
Track chartsRV Prince Madog PD36/05 cruise track — pd36roscop4756trk.pdf (00 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 stationsQuantity: number of stations = 47
Description: Bottles always fired at surface and bottom and occasionally at mid-depth
Water bottle stationsQuantity: number of stations = 27
Description: Particulate and dissolved organic and inorganic N
Water bottle stationsQuantity: number of stations = 27
Description: Particulate and dissolved organic and inorganic P
Water bottle stationsQuantity: number of stations = 47
Description: Suspended matter concentration, chl, particulate absorption, yellow substance, HPLC
CTD stationsQuantity: 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: Underwater light profiles with PRR600 and Satlantic MicroProfiler
Optics (eg underwater light levels)Quantity: number of stations = 60
Description: Secchi Disk
Current profiler (eg ADCP)Quantity: activity duration in days = 8
Description: Currents from 300 kHz RDI Workhorse ADCP
Chemical oceanography 
Other chemical oceanographic measurementsQuantity: number of stations = 27
Description: Particulate and dissolved organic and inorganic P
Other chemical oceanographic measurementsQuantity: number of stations = 27
Description: Particulate and dissolved organic and inorganic N
Contamination 
Suspended matterQuantity: number of stations = 47
Description: Suspended matter concentration, chl, particulate absorption, yellow substance, HPLC
Other contaminant measurementsQuantity: number of stations = 127
Description: LISST-FLOC profiles for in situ suspended particle size spectra
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: activity duration in days = 8
Description: Underway fluorescence measurements by PAM flow-through fluorometer
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of stations = 126
Description: Fast Repetition Rate Fluorometry profiles
PhytoplanktonQuantity: number of stations = 3
Description: Phytoplankton net samples
Meteorology 
Routine standard measurementsQuantity: activity duration in days = 8
Description: Underway measurement of standard met. Parameters