Marine_Scotland_FishDAC_1730 eng dataset Scottish Government (Marine Scotland) +44 (0)300 244 4000 marinescotland@gov.scot pointOfContact 2016-05-03 MEDIN Discovery Metadata Version 2.3.7 urn:ogc:def:crs:EPSG::4326 OGP 0905S HERAS North sea herring acoustic survey- Scotia cruise 0905S HERAS, North Sea herring survey, Scotia 0905S 2016-04-08 publication Marine_Scotland_FishDAC_1730 Daily folders (20) of Simrad format (.raw & EK5) acoustic data. 20 Echoview format (EV) format analysis files. Excel biological data for 37 pelagic hauls. CTD data for 36 oblique deployments on OCEAN sampler. Excel data for 36 plankton oblique tows. Continual AGDS data. To conduct an acoustic survey to estimate the abundance and distribution of herring in the north western North Sea and north of Scotland between 58º15-61.45’N and 4ºW to 2ºE, excluding Faroese waters.• To obtain echosounder trace identification using a pelagic trawl. • To obtain samples of herring for biological analysis, including age, length, weight, sex, maturity, ichthyophonus infection and fat content. • To obtain hydrographic data for comparison with the horizontal and vertical distribution of herring. • To obtain plankton samples for acoustic identification work. • To test the new multisampling pelagic cod end. Scottish Government (Marine Scotland) +44 (0)300 244 4000 Mailpoint 11, Area 1B South, Victoria Quay Edinburgh EH6 6QQ United Kingdom marinescotland@gov.scot pointOfContact Scottish Government (Marine Scotland) +44 (0)300 244 4000 Mailpoint 11, Area 1B South, Victoria Quay Edinburgh EH6 6QQ United Kingdom marinescotland@gov.scot custodian Scottish Government (Marine Scotland) +44 (0)300 244 4000 Mailpoint 11, Area 1B South, Victoria Quay Edinburgh EH6 6QQ United Kingdom marinescotland@gov.scot distributor Scottish Government (Marine Scotland) +44 (0)300 244 4000 Mailpoint 11, Area 1B South, Victoria Quay Edinburgh EH6 6QQ United Kingdom marinescotland@gov.scot originator Not Planned Marine Environmental Data and Information Network Acoustics Biota composition Fish Zooplankton SeaDataNet Agreed Parameter Groups 2010-10-23 revision Acoustic backscatter in the water column Fish abundance in water bodies Fish biomass in water bodies Fish morphology, age and physiology BODC Parameter Discovery Vocabulary 2011-03-25 revision Open Government License (http://www.nationalarchives.gov.uk/doc/open-government-licence/) otherRestrictions no limitations to public access 55000.00 eng oceans -4 2 57 62 ICES Rectangles 1910-01-01 creation 45E6 ICES Rectangles 1910-01-01 creation 46E6 ICES Rectangles 1910-01-01 creation 47E6 ICES Rectangles 1910-01-01 creation 48E6 ICES Rectangles 1910-01-01 creation 49E6 ICES Rectangles 1910-01-01 creation 44E7 ICES Rectangles 1910-01-01 creation 45E7 ICES Rectangles 1910-01-01 creation 46E7 ICES Rectangles 1910-01-01 creation 47E7 ICES Rectangles 1910-01-01 creation 48E7 ICES Rectangles 1910-01-01 creation 49E7 ICES Rectangles 1910-01-01 creation 50E7 ICES Rectangles 1910-01-01 creation 43E8 ICES Rectangles 1910-01-01 creation 44E8 ICES Rectangles 1910-01-01 creation 45E8 ICES Rectangles 1910-01-01 creation 46E8 ICES Rectangles 1910-01-01 creation 47E8 ICES Rectangles 1910-01-01 creation 48E8 ICES Rectangles 1910-01-01 creation 49E8 ICES Rectangles 1910-01-01 creation 50E8 ICES Rectangles 1910-01-01 creation 51E8 ICES Rectangles 1910-01-01 creation 43E9 ICES Rectangles 1910-01-01 creation 44E9 ICES Rectangles 1910-01-01 creation 45E9 ICES Rectangles 1910-01-01 creation 46E9 ICES Rectangles 1910-01-01 creation 47E9 ICES Rectangles 1910-01-01 creation 48E9 ICES Rectangles 1910-01-01 creation 49E9 ICES Rectangles 1910-01-01 creation 50E9 ICES Rectangles 1910-01-01 creation 51E9 ICES Rectangles 1910-01-01 creation 52E9 ICES Rectangles 1910-01-01 creation 43F0 ICES Rectangles 1910-01-01 creation 44F0 ICES Rectangles 1910-01-01 creation 45F0 ICES Rectangles 1910-01-01 creation 46F0 ICES Rectangles 1910-01-01 creation 47F0 ICES Rectangles 1910-01-01 creation 48F0 ICES Rectangles 1910-01-01 creation 49F0 ICES Rectangles 1910-01-01 creation 50F0 ICES Rectangles 1910-01-01 creation 51F0 ICES Rectangles 1910-01-01 creation 52F0 ICES Rectangles 1910-01-01 creation 43F1 ICES Rectangles 1910-01-01 creation 44F1 ICES Rectangles 1910-01-01 creation 45F1 ICES Rectangles 1910-01-01 creation 46F1 ICES Rectangles 1910-01-01 creation 47F1 ICES Rectangles 1910-01-01 creation 48F1 ICES Rectangles 1910-01-01 creation 49F1 ICES Rectangles 1910-01-01 creation 50F1 ICES Rectangles 1910-01-01 creation 51F1 ICES Rectangles 1910-01-01 creation 52F1 SeaDataNet vertical extent keywords 2010-01-01 revision The entire body of water between the bed and the atmosphere. 2005-06-28 2005-07-18 https://www.bodc.ac.uk/data/information_and_inventories/cruise_inventory/search/ Reference info #0 Electronic - 50GB - Daily folders (20) of Simrad format (.raw & EK5) acoustic data. 20 Echoview format (EV) format analysis files. Excel biological data for 37 pelagic hauls. CTD data for 36 oblique deployments on OCEAN sampler. Excel data for 36 plankton oblique tows. Continual AGDS data. dataset Acoustic data will be collected at four frequencies (18, 38, 120 and 200 kHz) between 0300 and 2300 hours. Fish shoals seen on the echosounder will be identified using a pelagic trawl (PT160). Trawling operations will be carried out between two and four times per day, and not between 2300 and 0300 hours. Samples of all species caught will be measured for length to partition the echo integral amongst species and size classes for target strength functions. Fish will also be weighed to establish a length-weight relationship. Otoliths will be collected from a sub-sample of the herring to determine age; the state of maturity and presence of Icthyophonus infection will also be recorded. The fat content of herring will be measured with a handheld fatmeter. Jellyfish will be counted and a sample taken to measure umbrella diameter. After each pelagic trawl haul an ARIES tow will be carried out. ARIES will be equipped with: a CTD to measure temperature, salinity and fluorescence; an OPC to measure small particles; and zooplankton and phytoplankton nets. The ships thermosalinograph will be run continuously to obtain sea surface temperature and salinity throughout the survey area. The multisampling cod end will be deployed between the hours of 2300 and 0300 to determine its functionality. If and when it is working well it will be placed on a net for fishing trials.