FV Joanna J. Young Fish Survey 1986
Cruise summary report
|Ship name||FV Joanna J.|
|Cruise identifier||Young Fish Survey 1986|
|Cruise period||1986-09-02 — 1986-09-05|
|Port of departure||West Mersea, United Kingdom|
|Port of return||West Mersea, United Kingdom|
|Objectives||Beam trawling in the North Thames area. 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, 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.
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 scientist||Colin L Whiting (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)|
|Cruise report||(0.09 MB)|
|Specific||Scottish Border-Swanage Bay North Thames|
|Surface measurements underway (T,S)||Description: observations made at every station|
|Oxygen||Description: observations made at every station|
|Biology and fisheries|
|Phytobenthos||Description: observations made at every station|
|Zoobenthos||Description: observations made at every station|
|Demersal fish||Quantity: number of hauls = 313|
Description: (in total throughout Young Fish Survey) beam trawl survey in the North Thames area
|Demersal fish||Quantity: number of surveys = 52|
Description: (in total throughout Young Fish Survey) push net sites in the North Thames area
|Crustaceans||Description: by-catch of shrimp recorded at each station|
|Geology and geophysics|
|Grab||Description: observations made at every station|