Marine_Scotland_FishDAC_1731 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 0505H HERAS West coast herring survey- MFV Enterprise HERAS, west coast herring survey, Enterprise FR 365 2016-04-08 publication Marine_Scotland_FishDAC_1731 Daily folders (18) of Simrad format (.EK5) acoustic data. 18 Echoview format (EV) format analysis files. Excel biological data for 34 pelagic hauls. Continual AGDS data. Hydrophone data with St Andrews University. Objectives 1. To conduct an acoustic survey to estimate the abundance and distribution of herring in the north western North Sea and west of Scotland (ICES area VIa(N) as part of the ICES International North Sea Herring Acoustic Survey. 2. To obtain samples of herring for biological analysis, including age, length, weight, sex, maturity and ichthyophonus infection. 3. To obtain samples of herring kidney tissue for detection of viral heamorrhagic septicaemia virus (VHSV) as part of ‘FC1196 Options for VHS Management: A risk assessment approach’. 4. To collect passive acoustic data for the detection of cetaceans. 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 University of St Andrews +44 (0)1334 476161 library@st-andrews.ac.uk originator Not Planned Marine Environmental Data and Information Network Acoustics Biota composition Fish SeaDataNet Agreed Parameter Groups 2010-10-23 revision Acoustic backscatter in the water column Cetacean abundance Cetacean behaviour 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 -10 -3 56 60.5 ICES Rectangles 1910-01-01 creation 41E0 ICES Rectangles 1910-01-01 creation 42E0 ICES Rectangles 1910-01-01 creation 43E0 ICES Rectangles 1910-01-01 creation 44E0 ICES Rectangles 1910-01-01 creation 45E0 ICES Rectangles 1910-01-01 creation 41E1 ICES Rectangles 1910-01-01 creation 42E1 ICES Rectangles 1910-01-01 creation 43E1 ICES Rectangles 1910-01-01 creation 44E1 ICES Rectangles 1910-01-01 creation 45E1 ICES Rectangles 1910-01-01 creation 46E1 ICES Rectangles 1910-01-01 creation 41E2 ICES Rectangles 1910-01-01 creation 42E2 ICES Rectangles 1910-01-01 creation 43E2 ICES Rectangles 1910-01-01 creation 44E2 ICES Rectangles 1910-01-01 creation 45E2 ICES Rectangles 1910-01-01 creation 46E2 ICES Rectangles 1910-01-01 creation 41E3 ICES Rectangles 1910-01-01 creation 42E3 ICES Rectangles 1910-01-01 creation 43E3 ICES Rectangles 1910-01-01 creation 44E3 ICES Rectangles 1910-01-01 creation 45E3 ICES Rectangles 1910-01-01 creation 46E3 ICES Rectangles 1910-01-01 creation 47E3 ICES Rectangles 1910-01-01 creation 44E4 ICES Rectangles 1910-01-01 creation 45E4 ICES Rectangles 1910-01-01 creation 46E4 ICES Rectangles 1910-01-01 creation 47E4 ICES Rectangles 1910-01-01 creation 46E5 ICES Rectangles 1910-01-01 creation 47E5 ICES Rectangles 1910-01-01 creation 48E5 ICES Rectangles 1910-01-01 creation 49E5 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 SeaDataNet vertical extent keywords 2010-01-01 revision The entire body of water between the bed and the atmosphere. 2005-06-28 2005-07-15 https://www.bodc.ac.uk/data/information_and_inventories/cruise_inventory/search/ Reference info #0 Electronic - 8.2GB - Daily folders (18) of Simrad format (.EK5) acoustic data. 18 Echoview format (EV) format analysis files. Excel biological data for 34 pelagic hauls. Continual AGDS data. Hydrophone data with St Andrews University. dataset The survey was started at 0300hrs on the morning of 29 June and proceeded south through the Minch following the cruise track shown in Fig1. Acoustic data was gathered at 38, 120 and 200kHz from the times between 0300 and 2300 hours. On Sunday 3 July surveying was suspended due to poor weather, recommencing on the 4 July. On the morning of 8 July passage was made to Loch Broom where a second calibration of the acoustic equipment was performed. This was completed at 0800hrs, at which point the vessel sailed to Ullapool to allow for the transfer of staff, replenishment of supplies and to provide a rest day in compliance with WTD requirements. The vessel departed at 1100hrs on the 9 July and sailed to Cape Wrath to complete the northern part of the survey area, finishing at 1700hrs on 14 July and returning to Fraserburgh on the morning of 15 July for unloading. 4164 MB of acoustic data at 3 frequencies was recorded. A total of 34 pelagic trawls were conducted to identify significant echo traces, with 30 of these yielding more than 20 herring. Samples of all species caught were measured for length and weight to establish a length weight relationship. Otoliths were collected from a sub-sample of the herring for later analysis to determine age. Maturity state was recorded and herring were examined for the presence of Icthyophonus infection. In addition samples of kidney tissue from 1050 herring from 21 hauls, were collected for detection of viral heamorrhagic septicaemia virus (VHSV). A hydrophone array was towed 400m behind the boat during acoustic monitoring for herring, between trawls. The hydrophone was monitored continuously, with 2 minute listening stations every 15 minutes, during which all sounds were evaluated on a scale of 0 (inaudible) – 5 (loud). A total of 730 listening stations were made, which corresponds to around 180 hours of monitoring and will be used to investigate links between fish distribution and cetaceans.