Cruise inventory

Nich-Tola

Cruise summary report

Cruise Info. 
Ship nameNich-Tola
Cruise period1990-08-18 — 1990-08-19
StatusCompleted
Port of departureAnnan, United Kingdom
Port of returnAnnan, United Kingdom
PurposeResearch
Objectives1. To compare suction dredging with quadrat sampling as a means of conducting intertidal cockle surveys.
2. To calibrate suction dredging against quadrat sampling.
3. To measure suction dredge efficiency.
4. To estimate the proportion of dredge damaged cockles to undamaged cockles.
Chief scientistTrevor R W Howell (Scottish Office Agriculture and Fisheries Department Aberdeen Marine Laboratory)
Cruise reportNich-Tola  cruise report nich_tola_aug90.pdf — access key 'C' (0.07 MB) 
Ocean/sea areas 
GeneralIrish Sea and St. George's Channel
SpecificSolway Firth
Measurements 
Biology and fisheries 
MolluscsQuantity: number of samples = 10
Description: A sampling technique had been established and timed samples were taken during normal fishing operations.
Gear researchQuantity: number of measurements = 1
Description: To calibrate suction dredging against quadrat sampling.
Gear researchQuantity: number of measurements = 1
Description: To measure the proportion of dredge damaged cockles to undamaged cockles.
Gear researchQuantity: number of observations = 1
Description: To compare suction dredging with quadrat sampling as a means of conducting intertidal cockle surveys. No. of trials not specified.
Gear researchQuantity: number of measurements = 1
Description: To measure suction dredge efficiency.