HERAS - 0812S - Herring acoustic survey 2012 - North Sea and west of Scotland - Scotia
dataset
https://portal.medin.org.uk/portal/start.php?tpc=012_Marine_Scotland_FishDAC_1708
Daily folders (17) of Simrad format (.raw) acoustic data. 17 Echoview format (EV) format analysis files. Excel biological data for 29 pelagic hauls. CTD data for 40 vertical dips.Continual thermosalinograph data. Continual AGDS data.
Objectives:
To conduct an acoustic survey to estimate the abundance and distribution of herring in the north western North Sea and north of Scotland between 58º30’-62ºN and from the shelf edge to 2ºE, excluding Faroese waters.
To obtain biological samples for echosounder trace identification using a pelagic trawl.
To obtain samples of herring for biological analysis, including age, length, weight, sex, maturity and ichthyophonus infection.
To obtain hydrographic data for comparison with the horizontal and vertical distribution of herring.
20160329