RV Lough Foyle LF/21/97
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RV Lough Foyle (74LG) |
| Cruise identifier | LF/21/97 |
| Cruise period | 1997-05-18 — 1997-05-22 |
| Status | Completed |
| Port of departure | Belfast, United Kingdom |
| Port of return | Belfast, United Kingdom |
| Purpose | Research |
| Objectives | The objectives of this cruise were to study the impact of copepod grazing on the spring bloom, quantify the flux of particulate organic cabon to the benthos and service the CEFAS moorings. Detailed objectives were to:
1. Quantify phytoplankton production in two size fractions (Whole and <5.0um). 2. Estimate copepod grazing. 3. Collect samples of phytoplankton and zooplankton for later identification and enumeration. 4. Collect sediment samples for the determination of sediment pigment concentration. 5. Collect water samples for the determination of particulate aluminium and dissolved inorganic nutrients. 6. Service the CEFAS moorings at station 38A and in Liverpool Bay. 7. Undertake limited sampling of Liverpool Bay bottom sediments for heavy metals. |
| Chief scientist | Richard Gowen (Department of Agriculture for Northern Ireland) |
| Cruise report |  (0.05 MB) |
| Ocean/sea areas | |
| General | Irish Sea and St. George's Channel |
| Specific | Western Irish Sea and Liverpool Bay |
| Track charts | (0.01 MB) |
| Measurements | |
| Physical oceanography | |
| Current meters | Quantity: number of recoveries = 3 Description: 3 moorings were recovered and serviced. |
| Current meters | Quantity: number of recoveries = 1 Description: CEFAS mooring was recovered and redeployed. |
| Biology and fisheries | |
| Zooplankton | Quantity: number of samples = 1 Description: Production and grazing studies took place |
| Crustaceans | Quantity: number of samples = 1 Description: Production and grazing studies took place |
| Crustaceans | Quantity: activity duration in hours = 21 Description: Sampling of copepod gut pigment, the samples are taken at 3 hourly intervals. |
