Cruise inventory

Arctic Ranger 7/87

Cruise summary report

Cruise Info. 
Ship nameArctic Ranger
Cruise identifier7/87
Cruise period1986-08-04 — 1986-10-03
StatusCompleted
PurposeResearch
ObjectivesSurvey with Arctic Ranger, Harmil, Mary and Rose.

1. To carry out three inshore beam trawl surveys of parts of the Irish Sea and West Wales coasts.
2. To sample juvenile fish and identify sole nursery grounds.

Survey 1: Beam trawl survey of Ribble estuary area between Blackpool and Formby, 4th-6th August.
Survey 2: repeat of 1, 1st-2nd September.
Survey 3: beam trawl stations completed, 1st-3rd October.

Results:
A total of 146 2m beam trawl stations were fished during the first survey, distributed equally between 0-5m, 5-10m and 10-15m. All flatfish were identified, measured and counted, other species were identified and counted. 0-group sole and solenettes were preserved for gut content analysis. Surface salinity and temperature recorded at each station.
During second and third surveys most fishing stations were revisited. 0-group soles collected for electrophoretic studies and frozen. 30 1-group soles returned live to the laboratory for tag-retention rials.
Chief scientistStuart Ian Rogers (Ministry of Agriculture, Fisheries and Food Conwy Laboratory)
Cruise reportArctic Ranger 7/87 cruise report commercial_vessels_jul87.pdf — access key 'C' (0.06 MB) 
Ocean/sea areas 
GeneralIrish Sea and St. George's Channel
SpecificRibble estuary area
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Quantity: number of stations = 146
Description: (in total for all 4 ships) recorded at each station during survey 1, repeated in survey 2 and 3
Biology and fisheries 
Demersal fishQuantity: number of stations = 146
Description: (in total for all 4 ships) 2m beam trawl for survey 1, repeated in survey 2 and 3; all flatfish were identified, measured and counted, other species were identified and counted
Demersal fishQuantity: number of specimens = 30
Description: (in total for all 4 ships) 1-group soles returned live to the laboratory for tag-retention trials.
Other biological/fisheries measurementDescription: 0-group sole and solenettes were preserved for gut content analysis
Other biological/fisheries measurementDescription: 0-group soles collected for electrophoretic studies and frozen