Data from: Egg size and density estimates for three gadoids in Icelandic waters and their implications for the vertical distribution of eggs along a stratified water column

Published: 30-12-2019| Version 1 | DOI: 10.17632/mz6vvzxdt5.1
Contributors:
William Butler,
Lovísa Guðmundsdóttir,
Kai Logemann,
Tom Langbehn,
Guðrún Marteinsdóttir

Description

Raw egg density and diameter measurements taken from wild spawning cod, haddock and saithe in SW Icelandic waters. Density measurements were taken using density-gradient columns and diameter measurements were taken from high resolution photographs. Column descriptions: 'species' = factor for species 'site' = factor used to differentiate between cod caught inshore ("codIn") and offshore ("codOut") 'batch' = code referring to each individual female sampled 'femaleLength' = total length (cm) of individual females 'dpf' = The number of days-post-fertilisation at which measurements were taken 'stage' = the dominant ontogenetic stage (pooled over batches) using a modified classification scheme developed from Thompson and Riley (1981) 'density' = raw egg density measurements (in g cm-3) at 7°C 'se' = the equivalent salinity of neutral buoyancy (PSU) at 7°C. 'diameter' = raw egg diameter measurements (mm) Two supplementary datasets are included, "batchDetails" and "sampleLocations" which contain the dates and locations for the sampling.