RV Fisher Lassie Young Fish Survey 2002
Cruise summary report
|Ship name||RV Fisher Lassie|
|Cruise identifier||Young Fish Survey 2002|
|Cruise period||2002-09-04 — 2002-09-07|
|Port of departure||West Mersea, United Kingdom|
|Port of return||West Mersea, United Kingdom|
|Objectives||Young Fish Survey. Team 2
To carry out an inshore beam trawl survey of parts of the North Sea, English Channel and Morecambe Bay for juvenile flatfish year class size estimation and collect data on young demersal fish in relation to the environment.
2m wooden beam trawl with 3mm-mesh liner. 10 minute duration tows and distance trawled recorded using GPS.
Team 2: Thames; Thames Estuary; 30th August to 7th September.
South and upper Thames survey: FV Ticiono, 30th August - 2nd September, 3 days trawling
Northern Thames survey: RV Fisher Lassie, 4th - 7th, 3 days fishing
1. 81 valid tows completed successfully. Samples of sole and plaice, 7-26cm preserved for otolith studies. 80 juvenile sole tagged for migration studies.
2. At each station all the fish were identified and measured, shrimp catch was estimated volumetrically and benthic species recored. Observations of temperature, salinity and sediment type also collected.
|Chief scientist||Terry Watson (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)|
|Cruise report||(10 MB)|
|Track charts||(0.95 MB)|
|Surface measurements underway (T,S)||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 = 81|
Description: (in total for Team 2) beam trawl survey of the north Thames; all fish identified and measured
|Demersal fish||Description: Samples of sole and plaice, from 7-26 cm were preserved for otolith studies.|
|Crustaceans||Description: shrimp catch was estimated volumetrically|
|Taggings||Quantity: number of specimens = 80|
Description: juvenile sole tagged for migration studies
|Geology and geophysics|
|Grab||Description: observations made at every station|