Marine_Scotland_FishDAC_1718
eng
dataset
Scottish Government (Marine Scotland)
+44 (0)300 244 4000
marinescotland@gov.scot
pointOfContact
2019-10-22
MEDIN Discovery Metadata
Version 2.3.7
urn:ogc:def:crs:EPSG::4326
OGP
CLYDAS - 2014A - Clyde herring acoustic survey 2014 - Clyde - Alba Na Mara
Clyde, Herring acoustic, Alba Na mara
2016-04-04
publication
Marine_Scotland_FishDAC_1718
Daily folders (11) of Simrad format (.raw) acoustic data. Excel biological data for 5 pelagic hauls.
Objectives:
To conduct an acoustic survey designed to survey both the open and enclosed areas of the Clyde to ultimately provide an estimate of the abundance and distribution of herring and sprat.
To obtain samples of herring and sprat for biological analysis, including age, length, weight, sex, maturity and ichthyophonus infection.
All other species caught will be measured for length and weight to establish a length weight relationship.
To gather passive acoustic data using a towed acoustic array to assess the presence 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
Aberdeen University
+44 1224 272 000
King's College
Aberdeen
AB24 3FX
United Kingdom
s.piertney@abdn.ac.uk
originator
Marine Scotland Science
375 Victoria Road
Aberdeen
AB11 9DB
United Kingdom
marinescotland@gov.scot
originator
Not Planned
Marine Environmental Data and Information Network
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
SeaDataNet Parameter Discovery Vocabulary
2018-12-12
revision
Acoustics
Biota composition
SeaDataNet Agreed Parameter Groups
2017-05-03
revision
Open Government License (http://www.nationalarchives.gov.uk/doc/open-government-licence/)
otherRestrictions
no limitations to public access
55000.00
eng
oceans
-6
-4
55
56.5
ICES Rectangles
1910-01-01
creation
39E4
ICES Rectangles
1910-01-01
creation
40E4
ICES Rectangles
1910-01-01
creation
41E4
ICES Rectangles
1910-01-01
creation
39E5
ICES Rectangles
1910-01-01
creation
40E5
ICES Rectangles
1910-01-01
creation
41E5
SeaDataNet vertical extent keywords
2010-01-01
revision
The entire body of water between the bed and the atmosphere.
2014-11-04
2014-11-16
https://www.bodc.ac.uk/data/information_and_inventories/cruise_inventory/search/
Reference info #0
Electronic - 5.4GB - Daily folders (11) of Simrad format (.raw) acoustic data. Excel biological data for 5 pelagic hauls. Cetacean recording and sighting data is held by Aberdeen University., Database - - Marine Scotland FSS database
dataset
The survey will be carried out within an area bounded by approximately 55°N to 56°N and 04° 40’ W to 05° 40’ W. Echointegration will be carried out at 38, 120 and 200 kHz. Trawling operations will be carried out as and when marks are identified. Otoliths will be collected from a sub-sample of the herring and sprat to determine age. The maturity state and presence of Icthyophonus infection will also be recorded.
The track will be similar to that carried out during the same survey in 2012 (Figure 1) with modifications being made to target areas where herring are likely to be, based on information obtained from MS Compliance during the survey. The survey will involve following a pre-set survey pattern, at a steaming speed between six and eight knots.
The acoustic array will be deployed throughout the survey, unless the vessel is in an area of short transects requiring tight manoeuvrability.