Occurrence record: 41144643

Human observation of Pacifastacus leniusculus (Dana, 1852) | Signal Crayfish recorded on 2025-04-24

API

Overview

Occurrence ID	41144643
Basis of record	Human observation
Scientific name	Pacifastacus leniusculus (Dana, 1852) - Signal Crayfish
Licence	OGL
Record Date	2025-04-24 (Day)
Locality	River Dee (Parton to Crossmichael) (SCT)
Location	Grid Reference: SJ395465 Latitude: 53.01237078019779 Longitude: -2.9031907336186875
Recorded by	Nick Rodger
Identification verification status	Unconfirmed - not reviewed

Dataset

Data partner	Scotland's Environment Web
Data resource	Invasive non-native species records from SEWeb
Collection code	iRecord \| SEWeb INNS

Abundance

Individual count	1

Event

Occurrence date	2025-04-24
Date precision	Day
Event date	2025-04-24
Event ID	29316472

Taxonomy

Scientific name	Pacifastacus leniusculus (Dana, 1852) Supplied scientific name "Pacifastacus leniusculus (Dana, 1852)"
Common name	Signal Crayfish
Taxon rank	species
Name match metric	Taxon GUID match The match was based on the supplied taxon concept ID rather than the scientific name.
Species	Pacifastacus leniusculus
Genus	Pacifastacus
Family	Astacidae
Order	Decapoda
Class	Malacostraca
Phylum	Arthropoda
Kingdom	Animalia
Taxon ID	NHMSYS0000377494
Taxonomic issue	No issues
Habitat taxon	terrestrial\|freshwater
Establishment means taxon	Non-native
Scientific name authorship	(Dana, 1852)

Geospatial

Country	United Kingdom
State/Province	Wales
Locality	River Dee (Parton to Crossmichael) (SCT)
Latitude (WGS84)	53.01237078019779
Longitude (WGS84)	-2.9031907336186875
Geodetic datum	EPSG:4326
Coordinate precision	Unknown
Coordinate uncertainty in meters	50.0
Grid size in meters	100
Grid reference	SJ395465

User flagged issues

Data quality tests

Test name	Result
Geodetic datum assumed WGS84	Warning
Country inferred from coordinates	Warning
Grid reference calculated using latitude and longitude	Warning
Show/Hide 14 passed properties
Basis of record not supplied	Passed
Basis of record badly formed	Passed
Invalid collection date	Passed
Incomplete collection date	Passed
First of the month	Passed
Data are generalised	Passed
Name not supplied	Passed
Name not recognised	Passed
Decimal coordinates not supplied	Passed
Zero latitude	Passed
Coordinate uncertainty not valid	Passed
Coordinate uncertainty not specified	Passed
Location not supplied	Passed
Missing geodetic datum	Passed
Show/Hide 2 missing properties
Missing name of person who identified the specimen/observation	Missing
Missing catalogue number	Missing
Show/Hide 73 tests that have not been run
Coordinates dont match supplied state	Unchecked (lack of data)
Depth out of range	Unchecked (lack of data)
Min and max depth reversed	Unchecked (lack of data)
Invalid scientific name	Unchecked (lack of data)
First of the year	Unchecked (lack of data)
Day and month transposed	Unchecked (lack of data)
Supplied country not recognised	Unchecked (lack of data)
Homonym issues with supplied name	Unchecked (lack of data)
Unrecognized geodetic datum	Unchecked (lack of data)
Supplied coordinates centre of state	Unchecked (lack of data)
Missing an identification qualifier	Unchecked (lack of data)
Kingdom not recognised	Unchecked (lack of data)
Coordinates dont match supplied country	Unchecked (lack of data)
Coordinates are transposed	Unchecked (lack of data)
Outside expert range for species	Unchecked (lack of data)
Coordinates derived from verbatim coordinates	Unchecked (lack of data)
Possible duplicate record	Unchecked (lack of data)
Georeferenced after occurrence date	Unchecked (lack of data)
Altitude out of range	Unchecked (lack of data)
Date precision invalid	Unchecked (lack of data)
Media unrepresentative for taxon	Unchecked (lack of data)
Zero longitude	Unchecked (lack of data)
Institution code not recognised	Unchecked (lack of data)
Missing coordinate precision	Unchecked (lack of data)
Missing georeferenced verification status	Unchecked (lack of data)
Min and max altitude reversed	Unchecked (lack of data)
Altitude value supplied in feet	Unchecked (lack of data)
No collection date supplied	Unchecked (lack of data)
Missing georeferenced protocol	Unchecked (lack of data)
Depth value supplied in feet	Unchecked (lack of data)
Cultivated / escapee	Unchecked (lack of data)
Image URL invalid	Unchecked (lack of data)
Taxonomic issue	Unchecked (lack of data)
Habitat incorrect for species	Unchecked (lack of data)
Collection code not recognised	Unchecked (lack of data)
Coordinates converted from UTM	Unchecked (lack of data)
Invalid geodetic datum	Unchecked (lack of data)
Supplied coordinates are zero	Unchecked (lack of data)
Unable to convert UTM coordinates	Unchecked (lack of data)
Badly formed altitude	Unchecked (lack of data)
Missing georeference date	Unchecked (lack of data)
Media unrepresentative	Unchecked (lack of data)
Decimal latitude/longitude conversion failed	Unchecked (lack of data)
Coordinates converted to WGS84	Unchecked (lack of data)
Suspected outlier	Unchecked (lack of data)
coordinatesNotCentreOfGrid	Unchecked (lack of data)
Latitude Longitude calculated from grid reference	Unchecked (lack of data)
Depth value non-numeric	Unchecked (lack of data)
Missing identification verification status	Unchecked (lack of data)
Name not in national checklists	Unchecked (lack of data)
Identification date before occurrence date	Unchecked (lack of data)
unrecognisedOccurrenceStatus	Unchecked (lack of data)
First of the century	Unchecked (lack of data)
Missing georeferenced sources	Unchecked (lack of data)
Altitude value non-numeric	Unchecked (lack of data)
Coordinates centre of country	Unchecked (lack of data)
Missing taxonomic rank	Unchecked (lack of data)
Unrecognised ID verification status	Unchecked (lack of data)
Precision / range mismatch	Unchecked (lack of data)
Missing name of person who georeferenced the occurrence	Unchecked (lack of data)
Missing identification date	Unchecked (lack of data)
Coordinate precision not valid	Unchecked (lack of data)
Occurrence status assumed to be present	Unchecked (lack of data)
Coordinates are out of range for species	Unchecked (lack of data)
Type status not recognised	Unchecked (lack of data)
Resource taxonomic scope mismatch	Unchecked (lack of data)
Missing identification references	Unchecked (lack of data)
Collector name unparseable	Unchecked (lack of data)
Higher taxonomy missing	Unchecked (lack of data)
Unparseable verbatim coordinates	Unchecked (lack of data)
Coordinate precision and uncertainty transposed	Unchecked (lack of data)
Latitude is negated	Unchecked (lack of data)
Longitude is negated	Unchecked (lack of data)

Additional political boundaries information

GB
Districts, Boroughs and Unitary Authorities (Great Britain)	Wrecsam - Wrexham
GB countries	Wales
Ordnance Survey Grids - 100km	SJ
Ordnance Survey Grids - 10km	SJ34
Ordnance Survey Grids - 50km	SJSW
Watsonian Vice Counties (GB)	Denbighshire
Watsonian Vice Counties – 12 mile (GB)	Denbighshire
Watsonian Vice Counties – 3 mile (GB)	Denbighshire
UK
Countries with sea areas	Wales
Local Environmental Records Centre Boundaries of the UK	Cofnod - North Wales Environmental Information Service
UK, IoM, Channel Islands
Hexagonal grid for reporting - 10km	12014
Square grid for reporting - 10km	22753
Wales
Local Authorities (Wales)	Wrecsam - Wrexham
Terrestrial Phase 1 Habitat Survey (Vegetation Voronoi) (Wales)	B.4 Improved grassland
World base layer	United Kingdom

Group	Field Name	Original Value	Processed Value
Classification	Species		Pacifastacus leniusculus
	Name match metric		taxonIdMatch
	Vernacular name	Signal Crayfish	Signal Crayfish
	Scientific name	Pacifastacus leniusculus (Dana, 1852)	Pacifastacus leniusculus
	Class		Malacostraca
	Genus id		NHMSYS0001593794
	Taxon concept ID		NHMSYS0000377494
	Kingdom id		NBNSYS0100001342
	Left		21536
	Habitat taxon		terrestrial\|freshwater
	Phylum		Arthropoda
	Kingdom		Animalia
	Class id		NHMSYS0021049526
	Genus		Pacifastacus
	Phylum id		NHMSYS0020470198
	Order		Decapoda
	Taxon rank		species
	Establishment means taxon		Non-native
	Order id		NHMSYS0021049528
	Taxonomic issue		["noIssue"]
	Species id		NHMSYS0000377494
	Family id		NBNSYS0000159453
	Taxon ID	NHMSYS0000377494
	Family		Astacidae
	Taxon rank id		7000
	Scientific name authorship		(Dana, 1852)
	Right		21536
Event	Date precision		Day
	Event date	2025-04-24	2025-04-24
	Year		2025
	Day		24
	Month		04
	Event ID	29316472
Identification	Abcd identification qualifier		Not provided
	Identification qualifier		Not provided
	Identification verification status	Unconfirmed - not reviewed	Unconfirmed - not reviewed
Occurrence	Occurrence ID	41144643
	Basis of record	HumanObservation	HumanObservation
	Recorded by	Nick Rodger	Rodger, N. Nick
	Rights holder	Scotland's Environment Web and Biological Records Centre
	Individual count	1
	Dataset name	Invasive non-native species records from SEWeb
	Occurrence status	present	present
	Collection code	iRecord \| SEWeb INNS
Attribution	Data resource		Invasive non-native species records from SEWeb
	Data provider uid		dp187
	License		OGL
	Data Resource ID	dr1364
	Data partner		Scotland's Environment Web
Location	Decimal latitude	53.01237078019779	53.01237078019779
	Grid size in meters		100
	Coordinate uncertainty in meters	50	50.0
	Country		United Kingdom
	Grid reference		SJ395465
	State province		Wales
	Decimal longitude	-2.9031907336186875	-2.9031907336186875
	Locality	River Dee (Parton to Crossmichael) (SCT)	River Dee (Parton to Crossmichael) (SCT)
	Geodetic datum		EPSG:4326

Occurrence record: 41144643

Overview

Dataset

Abundance

Event

Taxonomy

Geospatial

User flagged issues

Data quality tests

Additional political boundaries information

- flagged by