Identification

Title

2015 - 2020 Marine Biological Association of the United Kingdom (MBA) RV MBA Sepia inshore haul demersal fish survey data from the South West region of the UK

Abstract

Time series data of demersal fish populations in the Western English Channel sampled using an otter trawl (15m headline) by the Marine Biological Association of the United Kingdom from 2015-2020. This data set contains vertebrate data from 269 trawls. For each trawl, the entire catch was identified to species level. This dataset contains abundance, length, weight and disk width (if applicable) measurements as well as Catch Per Unit Effort calculations. This dataset contains consistent sex data for elasmobranchs. Invertebrate abundance data was also collected on each survey and is available on request to MBASepia@mba.ac.uk. These data include high confidence cephalopod, scallop and large crab abundance as well as counts of other invertebrates including other crustaceans and echinoderms. Environmental data (surface and bottom water temperature and salinity) was consistently recorded from 2020. Sensitive species as published by the National Biodiversity Network Trust (available: https://docs.nbnatlas.org/sensitive-species-list/ correct as of 03/02/2021) have been removed from the dataset but can be made available on request.

Resource type

dataset

Resource locator

http://www.dassh.ac.uk/

name: DASSH homepage - general website

description: http://www.dassh.ac.uk

Unique resource identifier

code

MBA_InshoreHaul_DT0001

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

urn:ogc:def:crs:EPSG::4326

Classification of spatial data and services

Topic category

oceans

biota

Keywords

Keyword set

keyword value

Keyword set

keyword value

Keyword set

keyword value

originating controlled vocabulary

title

GEMET - INSPIRE themes, version 1.0

reference date

date type

revision

effective date

2008-01-06

Keyword set

keyword value

originating controlled vocabulary

title

SeaDataNet P021 parameter discovery vocabulary

reference date

date type

revision

effective date

2009-11-16

Keyword set

keyword value

originating controlled vocabulary

title

GEMET

reference date

date type

creation

effective date

2011-07-06

Keyword set

keyword value

originating controlled vocabulary

title

MEDIN

reference date

date type

creation

effective date

2012-02-14

Keyword set

keyword value

originating controlled vocabulary

title

Gardline

reference date

date type

creation

effective date

2012-03-16

Keyword set

keyword value

originating controlled vocabulary

title

100

reference date

date type

creation

effective date

2012-04-28

Keyword set

keyword value

originating controlled vocabulary

title

Global Change Master Directory Science Keywords V5

reference date

date type

creation

effective date

2006-08-31

Keyword set

keyword value

originating controlled vocabulary

title

INSPIRE

reference date

date type

creation

effective date

2017-05-12

Geographic location

West bounding longitude

-4.3000

East bounding longitude

-3.8000

North bounding latitude

50.3800

South bounding latitude

50.2000

Extent

Extent group

authority code

title

Charting Progress 2 Sea Areas

reference date

date type

creation

effective date

2009-06-18

code identifying the extent

Western Channel and Celtic Sea

Extent group

authority code

title

ICES Rectangles

reference date

date type

creation

effective date

2009-05-01

code identifying the extent

29E5

Extent group

authority code

title

ICES Rectangles

reference date

date type

creation

effective date

2009-05-01

code identifying the extent

29E6

Extent group

authority code

title

SeaDataNet vertical extent keywords

reference date

date type

revision

effective date

2010-01-01

code identifying the extent

water column

Vertical extent information

Minimum value

-10.0000

Maximum value

-50.0000

Coordinate reference system

authority code

code identifying the coordinate reference system

urn:ogc:def:crs:EPSG::5861

Temporal reference

Temporal extent

Begin position

2015-03-05

End position

2020-08-12

Dataset reference date

date type

publication

effective date

2021-05-03

date type

creation

effective date

2020-08-12

date type

revision

effective date

2021-05-03

Frequency of update

annually

Quality and validity

Lineage

This 6-year dataset belongs to a parent data-series of inshore haul demersal fish survey time series data titled '1911 - Ongoing Marine Biological Association of the United Kingdom (MBA) Western English Channel inshore haul demersal fish time series survey data' with Resource ID 'MBA_InshoreHaul_SE01'. Seven research vessels have been used over the course of the time series with comparable gear i.e. an ~15m headline small otter trawl with a small mesh cod-end or a cod end cover of mesh size 5mm. There is high confidence in this dataset. Data is subject to quality checking of 10% of digitised data against paper records. Since 2018, taxonomic identification has been validated through the NMBAQC scheme. If there is any question of confidence of taxonomic identification of a species then a more general taxonomic level is used to describe these specimens (typically genus). Invertebrate abundance data is available through request to MBASepia@mba.ac.uk. There is high confidence in species identification of some species (e.g. cephalopods). This dataset can be made available via a data request to MBASepia@mba.ac.uk where specialist advice on data confidence and methodology can be provided in addition to the dataset.

Conformity

Conformity report

specification

title

MEDIN data guideline for fish and benthos data by trawl and dredge

reference date

date type

publication

effective date

2011-02-02

degree

true

explanation

See the referenced specification

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

Published data to be openly accessible and used under a CC-BY license. Unpublished data available for use via data request to MBASepia@mba.ac.uk

Constraint set

Limitations on public access

Published data to be openly accessible and used under a CC-BY license. Unpublished data available for use via data request to MBASepia@mba.ac.uk

Responsible organisations

Responsible party

contact position

Sea-going team

organisation name

Marine Biological Association of the United Kingdom

email address

MBASepia@mba.ac.uk

responsible party role

originator

Responsible party

contact position

Research Vessel Manager

organisation name

Marine Biological Association of the United Kingdom

email address

racbri@mba.ac.uk

responsible party role

custodian

Metadata on metadata

Metadata point of contact

contact position

Sea-going team

organisation name

Marine Biological Association of the United Kingdom

email address

MBASepia@mba.ac.uk

responsible party role

pointOfContact

Metadata date

2021-05-10

Metadata language

eng