Pediastrum duplex is a species of fresh water green algae in the genus Pediastrum. They form nonmotile coenobia (colonies) with a fixed number of cells. These coenobia are flat and have a circular shape. The cell bodies are polygonal, are granulated and have horn-like projections. They reproduce these autocolonies asexually. The colonies usually contain 8 to 32 cells, with examples of 4, 64 or 128 occurring rarely.
No narrative description available for this taxon yet.
A DNA barcode is a short, standardised stretch of genes that works like a fingerprint — enough to tell one species from another. Below is the molecular trace Pediastrum duplex has left across the world's sequence archives.
At a glance
DNA specimens54
Marker genes5
GenBank sequences10
eDNA detections71
Countries6
The DNA barcodea real sequence read deposited for this species
★ the standard DNA barcode for this group — the short region actually read to tell this species apart. The rest are extra genes sequenced along the way.
★COI-5P★rbcL2★ITS8★ITS1★ITS2
animal barcodeplant barcodefungal barcode
08Occurrence & distribution
Record type6 736 records
Wild obs. + sensor4 675
Museum / vouchered1 874
Cultivated / captive1
Other186
Range
Area of Occupancy AOO7 400 km²
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Coordinate accuracy96% within 1 km
≤100 m 3 884≤1 km 160≤10 km 142>10 km 38
4 224 georeferenced · 451 without coordinates
Open the mapobservation + sensor4 675
Museum / Voucheredphysical evidence
Backed by a physical specimen — a herbarium sheet, sample or voucher held in a collection. “Vouchered” means supported by material evidence, not just an observation.
Coordinate accuracy75% within 1 km
≤100 m 30≤1 km 77≤10 km 31>10 km 4
142 georeferenced · 1 732 without coordinates
Open the institutions mapphysical evidence1 874
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
Coordinate accuracy0% within 1 km
≤10 km 1
1 georeferenced
Open the mapnot free-living1
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
10Collections & institutions
Holding institutions13 of 43 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
730location not on record
1 249
Londrina, BR
115
University of Tartu | Finnish Environment Institutelocation not on record
68
TÜ_EMIlocation not on record
43
Bronx, US
16
ONUlocation not on record
14
Berlin, DE
13
JODClocation not on record
13
Ieva Bardalocation not on record
9
IfAÖ- Institut für Angewandte Ökosystemforschung GmbHlocation not on record
9
RWSlocation not on record
8
Universidad de Antioquia (UdeA)location not on record
8
Celsia Colombia S.A. E.S.P.(CELSIA)location not on record
6
TASHlocation not on record
6
LDlocation not on record
5
KULlocation not on record
5
UniRosZSlocation not on record
4
Ann Arbor, US
4
IPMAlocation not on record
4
Durango, MX
4
IfAÖ Institut für Angewandte Ökosystemforschung GmbHlocation not on record
4
Minia, EG
3
Lake Charles, US
3
Centro de Investigaciones Biológicas, Universidad Autónoma del Estado de Moreloslocation not on record
3
Mérida, MX
3
McWane Science Centerlocation not on record
2
Brown Universitylocation not on record
2
National Marine Biodiversity Institute of Korealocation not on record
2
IPA/SPlocation not on record
2
New Haven, US
2
GHERlocation not on record
2
Universidad de Chilelocation not on record
1
RUGlocation not on record
1
Corvallis, US
1
Cincinnati, US
1
FLASlocation not on record
1
PHlocation not on record
1
Universidade Federal de Goiáslocation not on record
1
Champaign, US
1
BGBMlocation not on record
1
Ciudad de México, MX
1
DOI/NPS, Russel Cave National Monumentlocation not on record
1
UGentlocation not on record
1
43 institutions · 1 643 of 1 874 vouchered records shown · 228 without an institution code
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
09Environmental DNA71 detections
Where the DNA of Pediastrum duplex was picked up in samples of water, soil or air — nobody saw the organism, only its DNA left behind. A trace is a clue that the species was near, not a confirmed sighting.
Signal
Detections DNA found71
Studies independent surveys5
Countries6
Signal confidence: moderateweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 71 detections have coordinates
Open the map6 countries0
How strong is each trace?
DNA read depthRead counts were not reported for this species — the map shows presence only, not how strong each trace was.
Measured at samplingin-field
pH8.07
Conductivity32,600 µS/cm
Nitrate0.668 µmol/L
Depth1.00 m
Coastal water
1 sample with on-site data · median with range · describes the sample, not the organism
Modelled climatemodelled
−15°Ctemperature across detection sites+40°C
Temperature median18.2 °C 8.70–32.8
Seasonal swing summer↔winter17.1 °C
Max temp (day)22.2 °C 11.8–36.5
Min temp (night)14.1 °C 4.70–28.6
Precipitation75.5 mm/mo 0–110
Air humidity60.8 % 48.5–63.7
Moisture balance-30.2 mm/mo -226–37.8
Vapour deficit826 Pa 451–2,554
Wind speed3.70 m/s 2.90–4.70
Cloud cover38.4 % 4.10–50.2
CHELSA 1981–2010, ~9 km grid, at location & month of 16 detection points · median with p10–p90 · reflects where sampling happened, not only the true niche
How to read this: each dot is one detection of this species' DNA in an environmental sample. The confidence meter weighs how many independent studies and places back up the signal — one detection in one study is a hint; many across several studies is solid. Records dated before 2008 (when eDNA methods began) are treated as likely mislabeled and left off the map.
WikipediaWikimedia Foundation3 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility6 736 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI71 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics54 specimens↗
NCBIUS National Library of Medicinesequences↗
Open Tree of LifeOpenTreephylogeny backbone↗