RV Lough Foyle LF/22/96
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RV Lough Foyle (74LG) |
| Cruise identifier | LF/22/96 |
| Cruise period | 1996-05-26 — 1996-05-30 |
| Status | Completed |
| Port of departure | Belfast, United Kingdom |
| Port of return | Belfast, United Kingdom |
| Purpose | Research |
| Objectives | RoxAnn survey of NI commercial scallop grounds
1. To use the acoustic ground classification system, RoxAnn, to survey sediment types at commercial scallop fishing areas in the Irish Sea. 2. To provide ground truthing information for RoxAnn using underwater cameras mounted on a towed sledge and static frame. 3. a) To collect the following scallop data: i) age composition ii) weight, height and length of individual scallops b) to retain scallop shell samples for ongoing morphometric studies c) identify and quantify fauna taken as bycatch in the dredges. |
| Chief scientist | Bridgeen Magorrian (Department of Agriculture for Northern Ireland) |
| Cruise report |  (0.16 MB) (0.18 MB) |
| Ocean/sea areas | |
| General | Irish Sea and St. George's Channel |
| Specific | Irish Sea and North Channel |
| Track charts | (0.03 MB) (0.03 MB) |
| Measurements | |
| Biology and fisheries | |
| Sediment traps | Quantity: number of images = 1 Description: Sediment surveys and collection of scallop data. A 35 minute camera tow took place. |
| Sediment traps | Quantity: number of images = 1 Description: Camera sledge was deployed in Area V and surveyed using RoxAnn. Scallops were sampled |
| Molluscs | Quantity: number of deployments = 1 Description: A RoxAnn survey took place , the tracks were deployed at three separate locations within the box. Scallops were sampled. |
| Molluscs | Quantity: number of measurements = 2 Description: Area II was surveyed using RoxAnn and the camera sledge deployed. |
| Molluscs | Quantity: number of images = 1 Description: Camera sledge was deployed in Area V and surveyed using RoxAnn. Scallops were sampled |
| Molluscs | Quantity: number of measurements = 2 Description: In Area I and Area II scallop dredges and RoxAnn surveys took place. |
| Molluscs | Quantity: number of measurements = 2 Description: In Area II scallop dredges and RoxAnn surveys tooks place. |
| Molluscs | Quantity: number of images = 1 Description: Sediment surveys and collection of scallop data. A 35 minute camera tow took place. |
