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FV Alvic

Cruise summary report

Cruise Info. 
Ship nameFV Alvic
Cruise period1988-08-31 — 1988-09-05
StatusCompleted
Port of departureWhitstable, United Kingdom
Port of returnWhitstable, United Kingdom
PurposeResearch
Objectives1. All teams. To carry out an inshore beam trawl and pushnet 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 year-class size estimation.
Chief scientistTerry Watson (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Cruise reportFV Alvic  cruise report commercial_vessels_sep88.pdf (0.09 MB) 
Ocean/sea areas 
GeneralEnglish Channel
North Sea
SpecificKent, South Thames Estuary, River Thames
Measurements 
Physical oceanography 
Subsurface temperature and salinity measurementsQuantity: number of hauls = 392
Description: A number of hauls were made as part of a young demersal fish survey. All fish caught were measured and identified. Salinity, sediment, oxygen, shrimp by-catch, benthos and temperature observations were also made. Samples of plaice were taken from the main areas fished.
Chemical oceanography 
OxygenQuantity: number of hauls = 392
Description: A number of hauls were made as part of a young demersal fish survey. All fish caught were measured and identified. Salinity, sediment, oxygen, shrimp by-catch, benthos and temperature observations were also made. Samples of plaice were taken from the main areas fished.
Biology and fisheries 
Sediment trapsQuantity: number of hauls = 392
Description: A number of hauls were made as part of a young demersal fish survey. All fish caught were measured and identified. Salinity, sediment, oxygen, shrimp by-catch, benthos and temperature observations were also made. Samples of plaice were taken from the main areas fished.
ZoobenthosQuantity: number of hauls = 392
Description: A number of hauls were made as part of a young demersal fish survey. All fish caught were measured and identified. Salinity, sediment, oxygen, shrimp by-catch, benthos and temperature observations were also made. Samples of plaice were taken from the main areas fished.
Pelagic fishQuantity: number of hauls = 392
Description: A number of hauls were made as part of a young demersal fish survey. All fish caught were measured and identified. Salinity, sediment, oxygen, shrimp by-catch, benthos and temperature observations were also made. Samples of plaice were taken from the main areas fished.
Pelagic fishDescription: Samples of live sole were collected and frozen for later laboratory analysis. No. of samples not noted.
Pelagic fishQuantity: number of surveys = 2
Description: A survey of the distribution and abundance of 0 gp sole took place, in preparation for estimation of overwintering mortality rate.
Demersal fishQuantity: number of hauls = 392
Description: A number of hauls were made as part of a young demersal fish survey. All fish caught were measured and identified. Salinity, sediment, oxygen, shrimp by-catch, benthos and temperature observations were also made. Samples of plaice were taken from the main areas fished.
CrustaceansQuantity: number of hauls = 392
Description: A number of hauls were made as part of a young demersal fish survey. All fish caught were measured and identified. Salinity, sediment, oxygen, shrimp by-catch, benthos and temperature observations were also made. Samples of plaice were taken from the main areas fished.