Oncorhynchus mykiss
(Walbaum, 1792) · speciesAt a glance
Sources14 archives
Databases and archives Oncorhynchus mykiss's data was compiled from.
WikipediaWikimedia Foundation19 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility241 393 records↗
OBISOcean Biodiversity Information System30 015 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI929 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics556 specimens↗
FooDBThe Metabolomics Innovation Centrecompounds↗
NPASSNat. Product Activity & Species Sourcecompounds↗
Open Tree of LifeOpenTreephylogeny backbone↗
GoaTGenomes on a Tree · Sangergenome & karyotype↗
NCBIUS National Library of Medicinegenome & karyotype↗
Tree of SexTree of Sex Consortiumgenome & karyotype↗
Catalogue of LifeCOLtaxonomy↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.
The Beardslee trout (Oncorhynchus mykiss irideus f. beardsleei), formerly Salmo gairdneri beardsleei) is a local form of rainbow trout endemic to Lake Crescent in Washington. Some sources treat them as a subspecies. Known to locals as "bluebacks", Beardslee trout are found nowhere else, and spawn in the Lyre River, near the outlet of the lake. Beardslee are somewhat difficult to distinguish from the Lake Crescent cutthroat trout, which is also endemic to Lake Crescent, as they only take on the rainbow colors during spawning.Trotter, Patrick C., Cutthroat: Native trout of the West, Colorado Associated University Press, 1987, p. 46 The spawning grounds of the Beardslee (considered the rarest salmonid in the Olympic National Park) are severely threatened by siltation, and the degradation of logjams in the river used as spawning grounds.Voice of the wild Olympics - The Trout of Lake Crescent, By Dick Goin (archived copy) Responding to a proposal from Washington Trout, Olympic National Park has announced an emergency change to fishing regulations on Lake Crescent. On May 24 (2002), Park Superintendent David Morris announced that Lake Crescent and all its tributaries will be open for catch and release angling only. The rule change prohibits the use of down riggers, and requires that anglers use only artificial lures with single barbless hooks and no more than two ounces of weight. The emergency rule took effect June 1, the day the lake opened for fishing. The new rules are designed to protect Lake Crescent's population of Beardslee rainbow trout, which has declined to a critically low level. Beardslee trout are a unique form of rainbow trout, native to Lake Crescent, and found nowhere else on earth. They spawn in late winter and early spring in only one small area of the Lyre River, near the outlet of the lake. Washington Trout conducted independent spawning surveys on the Lyre this past spring and found alarming evidence of very low numbers of spawning fish, indicating that the population has experienced a severe decline. This evidence was supported by counts made by Park Service crews that officially counted only 35 spawning redds (slightly higher than WT's count), the lowest number since official redd counts were begun in 1989.Park Responds to Request From WT to Conserve Beardslee Trout
No narrative description available for this taxon yet.
Size & morphology2
Life cycle & reproduction4
Habitat & environment4
Uses & economy1
Other traits3
Compounds documented for Oncorhynchus mykiss across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").
Compound class profile5 classes
Documented compounds105 total
| Compound | Class | Amount | Source |
|---|---|---|---|
| Cholesterol | 66,000 mg/100 g | FooDB | |
| L-Glutamic acid | 3,719 mg/100g | FooDB | |
| Nitrogen | 3,200 mg/100 g | FooDB | |
| Sodium | 2,850 mg/100g | FooDB | |
| L-Aspartic acid | 2,551 mg/100g | FooDB |
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 Oncorhynchus mykiss has left across the world's sequence archives.
At a glance
★ 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.
Besides the big genome in the nucleus, cells carry a small, circular loop of DNA inside the cell's energy factories — the mitochondria. It is inherited almost only from the mother and is a leftover from ancient bacteria that moved into the cell. The mitochondrial markers above (ND*, COX, CYTB…) are read from exactly this loop. Outer ring = one strand, inner ring = the other.
The complete instruction manual Oncorhynchus mykiss carries — its genome. We read it from three angles — how big it is, how the DNA is packed into chromosomes, and how completely it has been sequenced — and explain how to read each value as you go.
Genome sizehow big the whole instruction manual is
Measured in base pairs (bp) — the individual letters of DNA (human ≈ 3.2 Gb, a bacterium a few million). The chart places this genome on a logarithmic scale — each step to the right is ten times bigger — among reference organisms. Across species a bigger genome loosely tracks with larger cells, slower growth and lower-energy lifestyles (powered flight favours small genomes) — yet it does not imply more genes or a more advanced organism (the long-standing C-value paradox).
Chromosomes & ploidyhow the DNA is packaged
2n is the full chromosome count in a normal body cell; n is a gamete (egg or sperm), which carries half. Ploidy is how many complete chromosome sets each cell holds — 2× (diploid) is typical for animals, while higher levels (polyploidy) are common in plants. Click any value below to see the underlying records and sources.
2n 605×GoaT · Animal Chromosome Counts Database · GoaT · Tree of Sex Database · GoaT · Animal Genome Size Database +1
2n 121×GoaT · Animal Chromosome Counts Database
Sequencing statusassembly quality — how far to trust these numbers
Assembly level tells you how finished the sequence is — from fragmented contigs, through scaffolds, up to a full chromosome-level assembly. BUSCO % estimates completeness: the share of genes expected to be present that were actually found. These describe the data quality, not the organism.
How far back this lineage goes — and how we know. Everything here is measured in Ma, short for “mega-annum”: millions of years ago. The chart reads left to right like a calendar of the Earth, from the deep past on the left to today at the right edgetop to bottom like a core drilled through the Earth, from the deep past at the top down to today at the bottom.
At a glance
When this lineage existed
How to read this: the coloured strip along the bottomdown the left is the geological calendar — the standard epochs (Pliocene, Pleistocene…) every museum uses, shown so you can see which chapter of Earth's history this lineage lived in. This lineage is a young one, so the strip is zoomed in to epochs — the finer subdivisions inside a period. The orange marker is the DNA clock: DNA accumulates mutations at a roughly steady rate, so comparing this species' DNA with its relatives estimates when the lineage split off — independently of any fossil.
Record type271 408 records
Origin
Range
Depth
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
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.
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Holding institutions38 of 116 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
| Institution | Specimens |
|---|---|
| Toronto, CA | 633 |
| Vancouver, CA | 514 |
| INEP KSC RASlocation not on record | 469 |
| Oregon State Universitylocation not on record | 465 |
| Ann Arbor, US | 446 |
| München, DE | 423 |
| University of Texas Biodiversity Collections (UTBC)location not on record | 396 |
| Washington, US | 306 |
| Instituto de Investigación de Recursos Biológicos Alexander von Humboldt (IAvH)location not on record | 204 |
| North Carolina Museum of Natural Scienceslocation not on record | 200 |
| South African Institute for Aquatic Biodiversitylocation not on record | 171 |
| Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record | 142 |
| Ohio State University - Fish Division, Columbus, OH (OSUM)location not on record | 126 |
| NHMOlocation not on record | 113 |
| Champaign, US | 109 |
| Sydney, AU | 92 |
| Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record | 82 |
| ASUlocation not on record | 82 |
| University of Minnesota, James Ford Bell Museum of Natural Historylocation not on record | 80 |
| Universidad del Tolima (UT)location not on record | 66 |
| University of Alberta Museumslocation not on record | 64 |
| University of Alabamalocation not on record | 40 |
| University of California San Diegolocation not on record | 40 |
| Toyama, JP | 38 |
| Chicago, US | 37 |
| Los Angeles, US | 36 |
| Texas Cooperative Wildlife Collectionlocation not on record | 34 |
| Celsia Colombia S.A. E.S.P.(CELSIA)location not on record | 34 |
| University of Victorialocation not on record | 32 |
| Edmonton, CA | 31 |
| UWFClocation not on record | 31 |
| Tempe, US | 30 |
| CASlocation not on record | 29 |
| MNHAHlocation not on record | 28 |
| Facultad de Ciencias Marinas, Universidad Autónoma de Baja Californialocation not on record | 27 |
| Bonn, DE | 25 |
| University of Nebraska State Museumlocation not on record | 25 |
| New Haven, US | 24 |
| Montgomery, US | 23 |
| USFWSlocation not on record | 20 |
| Texas Memorial Museum, Texas Natural History Collectionlocation not on record | 20 |
| National Natural History Collectionslocation not on record | 17 |
| Cambridge, US | 17 |
| DOI/NPS, Salem Maritime National Historic Sitelocation not on record | 15 |
| Frankfurt am Main | 15 |
| Universidad de Antioquia (UdeA)location not on record | 14 |
| Kagoshima University Museumlocation not on record | 12 |
| Pontificia Universidad Javeriana (PUJ)location not on record | 12 |
| Museums Victorialocation not on record | 12 |
| Mexico City, MX | 11 |
| University of Nebraskalocation not on record | 11 |
| Centre for Biodiversity Genomics, Informatics Departmentlocation not on record | 10 |
| Gifu prefectural Museumlocation not on record | 10 |
| Geneva, CH | 10 |
| Museu Nacional/Universidade Federal do Rio de Janeirolocation not on record | 9 |
| University of Nevada, Museum of Biologylocation not on record | 8 |
| Museo civico di Storia naturale Giacomo Doria di Genova | Giacomo Doria Natural History Museum in Genoalocation not on record | 8 |
| Tasmanian Museum & Art Gallerylocation not on record | 8 |
| Universidad de Caldas (UCaldas)location not on record | 8 |
| Stockholm, SE | 7 |
| CENPAT-CONICETlocation not on record | 6 |
| PUC-RSlocation not on record | 6 |
| Fort Hays State University, Sternberg Museumlocation not on record | 5 |
| Universidad de La Salle (La Salle)location not on record | 5 |
| Sam Noble Oklahoma Museum of Natural Historylocation not on record | 5 |
| Universidad Católica de Oriente (UCO)location not on record | 5 |
| Morelia, MX | 5 |
| Juriquilla, MX | 4 |
| Fribourg, CH | 4 |
| SNSB-Zoologische Staatssammlung Münchenlocation not on record | 4 |
| National Museums of Kenyalocation not on record | 4 |
| Centro de Investigaciones Biológicas, Universidad Autónoma del Estado de Moreloslocation not on record | 4 |
| Universidad Industrial de Santander (UIS)location not on record | 4 |
| Natick, US | 4 |
| APSUlocation not on record | 4 |
| Ilvolocation not on record | 4 |
| Paro, BT | 4 |
| University of Wyoming Museum of Vertebrateslocation not on record | 3 |
| Yokosuka City Museumlocation not on record | 3 |
| Royal Saskatchewan Museumlocation not on record | 3 |
| QVMAGlocation not on record | 3 |
| Maurice Lamontagne Institutelocation not on record | 3 |
| Instituto para la Investigación y la Preservación del Patrimonio Cultural y Natural del Valle del Cauca - INCIVAlocation not on record | 3 |
| Helsinki, FI | 3 |
| MPSlocation not on record | 2 |
| Mexico City, MX | 2 |
| Australian National Fish Collectionlocation not on record | 2 |
| NSW Dept of Planning, Industry and Environmentlocation not on record | 2 |
| Fundacion Miguel Lillolocation not on record | 2 |
| MZLUlocation not on record | 2 |
| Dhaka, BD | 2 |
| Moore Laboratory of Zoology, Occidental Collegelocation not on record | 2 |
| FishBaselocation not on record | 2 |
| Paris, FR | 2 |
| Museu de Zoologia da Universidade de Sao Paulolocation not on record | 2 |
| Cincinnati, US | 2 |
| Tomioka, JP | 1 |
| Iowa City, US | 1 |
| Universidad El Bosque (El Bosque)location not on record | 1 |
| Bavarian State Collection of Zoologylocation not on record | 1 |
| ZSMlocation not on record | 1 |
| Royal Museum for Central Africalocation not on record | 1 |
| DOI/FWS, Kenai National Wildlife Refugelocation not on record | 1 |
| SGAV-and-NHMDlocation not on record | 1 |
| National Institute of Biological Resourceslocation not on record | 1 |
| Forssa, FI | 1 |
| Londrina, BR | 1 |
| Western Australian Museumlocation not on record | 1 |
| Auckland, NZ | 1 |
| Tapachula, MX | 1 |
| Buenos Aires, AR | 1 |
| San Nicolás de los Garza, MX | 1 |
| Central Michigan University Museum of Cultural and Natural Historylocation not on record | 1 |
| DASSHlocation not on record | 1 |
| UEMlocation not on record | 1 |
| Museo de Ictiología Carlos Arturo Ardila Rodríguez (CAR)location not on record | 1 |
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
Where the DNA of Oncorhynchus mykiss 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
Where its DNA was found
How strong is each trace?
Measured at samplingin-field
Modelled climatemodelled
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.