Cruise inventory

FV Alvic Young Fish Survey 1986

Cruise summary report

Cruise Info. 
Ship nameFV Alvic
Cruise identifierYoung Fish Survey 1986
Cruise period1986-09-07 — 1986-09-09
StatusCompleted
Port of departureWhitstable, United Kingdom
Port of returnWhitstable, United Kingdom
PurposeResearch
ObjectivesBeam trawl survey of the River Thames and south Thames areas. Push net sites sampled throughout.

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

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.
Chief scientistColin L Whiting (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Cruise reportFV Alvic Young Fish Survey 1986 cruise report commercial_vessels_aug86.pdf — access key 'C' (0.09 MB) 
Ocean/sea areas 
GeneralEnglish Channel
North Sea
Irish Sea and St. George's Channel
SpecificScottish Border-Swanage Bay North Thames, South Thames
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Description: Observations made at every station.
Chemical oceanography 
OxygenDescription: 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 = 52
Description: (in total throughout the Young Fish survey) push net sites in the River Thames and south Thames area
Demersal fishQuantity: number of hauls = 313
Description: (in total throughout the Young Fish survey) beam trawl survey of the River Thames and south Thames area
CrustaceansDescription: By-catch of shrimp recorded at each station
Geology and geophysics 
GrabDescription: Observations made at every station.