Identification

Title

2006 The Environment Agency (EA) Tamar and Lynher Rivers and Estuaries Shad surveys and records

Abstract

1. Records of Shad sp. and Allis Shad catches by commercial salmon netsmen (Allis Shad where species identification confirmed from examination by expert); 2. Records of Shad and Allis Shad (Allis Shad where species identification confirmed from examination by expert) caught by rod anglers, angling clubs and commercial salmon and sea trout estuary netsmen; 3. Records of Allis Shad caught and examined at Gunnislake Fish Trap; 4. Records of Shad (presumed Allis Shad as inferred from trap records) counted by Gunnislake Fish Counter and observed on camera footage as they migrate upstream at the tidal limit; 5. Sightings of live Shad; 6. Records of dead Shad carcasses; 7. Records of Shad egg surveys. Egg surveys in estuary or river using a standard long-handled macroinvertebrate kick-sampling net and technique. The original database is held by the Environment Agency. If you have any questions about data contained within it, contact Robert Hillman (see contacts).

Resource type

dataset

Resource locator

Unique resource identifier

code

DASSHDT00000266

codeSpace

http://www.dassh.ac.uk

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

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

Geographic location

West bounding longitude

-4.4007

East bounding longitude

-4.1964

North bounding latitude

50.6734

South bounding latitude

50.3402

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

International Hydrographic Bureau, Limits of Oceans and Seas

reference date

date type

creation

effective date

1954-01-01

code identifying the extent

English Channel

Extent group

authority code

title

SeaDataNet vertical extent keywords

reference date

date type

revision

effective date

2010-01-01

code identifying the extent

benthic boundary layer

Extent group

authority code

title

SeaDataNet vertical extent keywords

reference date

date type

revision

effective date

2010-01-01

code identifying the extent

circalittoral

Extent group

authority code

title

SeaDataNet vertical extent keywords

reference date

date type

revision

effective date

2010-01-01

code identifying the extent

infralittoral

Extent group

authority code

title

SeaDataNet vertical extent keywords

reference date

date type

revision

effective date

2010-01-01

code identifying the extent

littoral

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

Extent group

authority code

title

ICES Statistical Areas

reference date

date type

creation

effective date

2014-05-16

code identifying the extent

VIIf

Extent group

authority code

title

ICES Statistical Areas

reference date

date type

creation

effective date

2014-05-16

code identifying the extent

VIIe

Temporal reference

Temporal extent

Begin position

2006-04-24

End position

2006-08-14

Dataset reference date

date type

publication

effective date

2016-01-28

Frequency of update

notPlanned

Quality and validity

Lineage

A Logie Aquantic Resistivity fish counter records fish migrating upstream; an individual fish can be checked by finding and examining the corresponding camera footage. EA expert reviewed all images. A fish was deemed to be shad if it was laterally very thin, displayed a weak swimming style including failed attempts to migrate upstream at the fish pass, and was observed to have a deeply forked tail. Records of shad catches from anglers/angling clubs. Fixed fish trap at Gunnislake which catches Allis Shad as they migrate upstream. Records of shad from commercial netsmen operating seine nets in the Tamar and Lynher estuaries. Egg surveys in the river and estuary using a standard macroinvertebrate kick-sampling net and technique.

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

Conformity report

specification

title

MEDIN data guideline for static net, pot and trap data

reference date

date type

publication

effective date

2011-02-02

degree

true

explanation

See the referenced specification

Conformity report

specification

title

MEDIN data guideline for transfer video survey data

reference date

date type

publication

effective date

2011-02-02

degree

true

explanation

See the referenced specification

Conformity report

specification

title

MEDIN data guideline for ad hoc sightings

reference date

date type

publication

effective date

2012-12-19

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

DASSH terms and conditions apply (see http://www.dassh.ac.uk/terms-and-conditions)

Constraint set

Limitations on public access

DASSH terms and conditions apply (see http://www.dassh.ac.uk/terms-and-conditions)

Responsible organisations

Responsible party

contact position

Senior Environmental Monitoring Officer, Analysis and Reporting

organisation name

Environment Agency, Bristol Head Office

email address

rob.hillman@environment-agency.gov.uk

responsible party role

originator

Responsible party

contact position

Senior Environmental Monitoring Officer, Analysis and Reporting

organisation name

Environment Agency, Bristol Head Office

email address

rob.hillman@environment-agency.gov.uk

responsible party role

custodian

Metadata on metadata

Metadata point of contact

contact position

Data Manager

organisation name

Data Archive for Seabed Species and Habitats (DASSH)

full postal address

Marine Biological Association of the UK, The Laboratory, Citadel Hill

Plymouth

PL1 2PB

telephone number

01752 633102

facsimile number

01752 633291

email address

dassh.enquiries@mba.ac.uk

responsible party role

pointOfContact

Metadata date

2016-11-15

Metadata language

eng