Cruise inventory

FV Challenge 'A' Young Fish Survey 1986

Cruise summary report

Cruise Info. 
Ship name (ship code)FV Challenge 'A' (740E)
Cruise identifierYoung Fish Survey 1986
StatusCompleted
Port of departureWainfleet, United Kingdom
Port of returnWainfleet, United Kingdom
PurposeResearch
ObjectivesBeam trawling in the Wash and off the north Norfolk coast. Push net sites sampled.

Young Fish Survey 1986 with: FV Alvic, FV Avon Valley, FV Challenge, FV Jo's Boys, FV Serenity, FV St Richard, FV Joanna J., FV Kimbill of Eden and FV Sharowna.

1. To carry out an inshore beam trawl and push net survey of part of the North Sea and English Channel coasts of young demersal fish in relation to the environment. To include collecting data for juvenile flatfish yearclass size estimation.
2. To carry out an ecological survey of Alnmouth and Duridge Bays for the CEGB (CEGB funded).

Results:
1. In total in the Young Fish Survey. 313 hauls made using the standard 2m beam trawl and 52 push net sites using the standard 1.5m push net sampled. All fish caught identified and measured. Salinity and sediment samples collected and surface temperature, benthos, shrimp by-catch and dissolved oxygen (River Thames) observed at each station.

2. 27 beam trawl hauls and 8 push net sites sampled. All fish caught identified and measured.
Chief scientistColin L Whiting (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)
Cruise reportFV Challenge 'A' Young Fish Survey 1986 cruise report commercial_vessels_aug86.pdf — access key 'C' (0.09 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificScottish Border-Swanage Bay the Wash and off Norfolk Coast
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Description: observations made at every station
Biology and fisheries 
PhytobenthosDescription: observations made at every station
ZoobenthosDescription: observations made at every station
Demersal fishQuantity: number of hauls = 8
Description: (in total by Team 3) push net sites for ecological survey of Alnmouth and Druridge Bays for CEGB
Demersal fishQuantity: number of hauls = 313
Description: (in total throughout Young fish survey) beam trawl survey in the Wash and north Norfolk coast
Demersal fishQuantity: number of hauls = 52
Description: (in total throughout Young fish survey) push net sites in the Wash and north Norfolk coast
Demersal fishQuantity: number of hauls = 27
Description: (in total by Team 3) beam trawls for the ecological survey of Alnmouth and Druridge Bays for CEGB
CrustaceansDescription: by-catch of shrimp recorded at each station
Geology and geophysics 
GrabDescription: observations made at every station