Oncorhynchus keta

Chum salmon

Maximum lifespan

7 yr

AnAge record

mtDNA size

16,656 bp

RefSeq NC_017838.1

GC content

45.76%

Whole genome

Non-coding

1,065 bp

D-loop 1,001 bp

Where Chum salmon sits among 2,335 species

Whole-genome GC content against maximum lifespan. Chum salmon has the 1,817th longest lifespan of them.

This species
Other ray-finned fishes
Other classes

Plot other mtDNA features with this species highlighted

Base composition

Whole genome16,656 bp

GC skew (G − C) / (G + C): −0.257
AT skew (A − T) / (A + T): +0.029

Life history

Maximum lifespan: 7 years
Adult weight: 8.7 kg
Female sexual maturity: 3.2 years
Male sexual maturity: 3.2 years

Lifespan from AnAge · AnAge record · other traits from AnAge Build 15 (HAGRID 04463)

About this record

Lifespan source: AnAge build 15
Based on: an animal in the wild
Data quality: acceptable, medium sample
Licence: Free to use, subject to the Human Ageing Genomic Resources conditions of use
Status: Updated in build 2
In the database since: build 1 (2015-07-01)
Last changed: build 2 (2026-11-13)

Every change against the 2015 build is in the changelog download.

Composition by region

Reference (L) strand as deposited in RefSeq

Whole genome16,656 bp

Protein-coding11,411 bp

12S rRNA946 bp

16S rRNA1,679 bp

All tRNA1,555 bp

D-loop1,001 bp

Genes and regions

Select a column to sort; select a gene to compare it across species

Base composition of Oncorhynchus keta genes

ND1NADH dehydrogenase subunit 1	975 bp	25.6%	27.9%	15.8%	30.7%	46.46%	−0.320	−0.042
ND2NADH dehydrogenase subunit 2	1,050 bp	28.6%	26.5%	13.1%	31.8%	44.95%	−0.415	+0.038
COX1Cytochrome c oxidase subunit I	1,551 bp	25.7%	29.1%	18.2%	27.0%	45.20%	−0.195	−0.061
COX2Cytochrome c oxidase subunit II	691 bp	27.6%	28.5%	16.2%	27.6%	43.85%	−0.261	−0.015
ATP8ATP synthase F0 subunit 8	168 bp	30.4%	24.4%	12.5%	32.7%	45.24%	−0.447	+0.109
ATP6ATP synthase F0 subunit 6	684 bp	24.9%	29.2%	13.5%	32.5%	45.91%	−0.414	−0.081
COX3Cytochrome c oxidase subunit III	785 bp	23.1%	28.5%	17.8%	30.6%	48.41%	−0.263	−0.106
ND3NADH dehydrogenase subunit 3	349 bp	23.2%	30.7%	14.6%	31.5%	46.13%	−0.366	−0.138
ND4LNADH dehydrogenase subunit 4L	297 bp	24.2%	26.9%	16.2%	32.7%	48.82%	−0.338	−0.053
ND4NADH dehydrogenase subunit 4	1,381 bp	26.4%	29.0%	15.1%	29.5%	44.68%	−0.323	−0.047
ND5NADH dehydrogenase subunit 5	1,839 bp	29.0%	27.7%	13.4%	29.9%	43.31%	−0.379	+0.023
ND6NADH dehydrogenase subunit 6	522 bp	36.4%	15.1%	14.8%	33.7%	48.47%	−0.391	+0.413
CYTBCytochrome b	1,141 bp	24.2%	28.7%	16.3%	30.8%	47.06%	−0.307	−0.086
12S rRNA12S ribosomal RNA	946 bp	29.6%	20.1%	22.9%	27.4%	50.32%	−0.088	+0.191
16S rRNA16S ribosomal RNA	1,679 bp	32.5%	19.8%	22.5%	25.2%	47.71%	−0.056	+0.244
D-loopControl region (D-loop)	1,001 bp	30.6%	30.3%	15.2%	24.0%	39.16%	−0.224	+0.005

Codon usage

Counts per codon, darker is more frequent

Gene

3,808 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).

Phe F5.9%

UUU107

UUC119

Leu L17.3%

UUA106

UUG26

CUU148

CUC153

CUA177

CUG47

Ile I7.4%

AUU139

AUC141

Met M3.9%

AUA106

AUG43

Val V5.8%

GUU56

GUC52

GUA86

GUG26

Ser S6.4%

UCU55

UCC60

UCA62

UCG11

AGU12

AGC42

Pro P5.6%

CCU59

CCC77

CCA58

CCG18

Thr T8.3%

ACU70

ACC122

ACA104

ACG19

Ala A9.0%

GCU77

GCC145

GCA97

GCG22

Tyr Y2.9%

UAU45

UAC66

His H2.8%

CAU29

CAC79

Gln Q2.6%

CAA86

CAG14

Asn N3.0%

AAU37

AAC78

Lys K2.0%

AAA66

AAG9

Asp D1.9%

GAU31

GAC42

Glu E2.7%

GAA86

GAG18

Cys C0.7%

UGU8

UGC19

Trp W3.2%

UGA94

UGG27

Arg R2.0%

CGU13

CGC11

CGA42

CGG10

Gly G6.5%

GGU40

GGC69

GGA88

GGG51

Stop 0.2%

UAA5

UAG3

AGA0

AGG0

Genome map

38 annotated features in NC_017838.1

Hover, tap or tab to a feature to see its position, length, strand and GC content. Genes and rRNAs open their own pages.

Protein-coding13
rRNA2
tRNA22
D-loop1

Outer ring: + strand, arrows run clockwise. Inner ring: − strand.
Middle ring: GC% of each gene against the whole genome (45.8%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).

All 38 features as a table

Annotated features of Oncorhynchus keta (NC_017838.1)
Feature	Type	Start	End	Length	Strand	GC
tRNA-Phe	Transfer RNA	1	68	68 bp	+	–
12S rRNA	Ribosomal RNA	69	1,014	946 bp	+	50.3%
tRNA-Val	Transfer RNA	1,015	1,086	72 bp	+	–
16S rRNA	Ribosomal RNA	1,087	2,765	1,679 bp	+	47.7%
tRNA-Leu (UUR)	Transfer RNA	2,766	2,840	75 bp	+	–
ND1	Protein-coding gene	2,841	3,815	975 bp	+	46.5%
tRNA-Ile	Transfer RNA	3,819	3,890	72 bp	+	–
tRNA-Gln	Transfer RNA	3,888	3,958	71 bp	−	–
tRNA-Met	Transfer RNA	3,958	4,026	69 bp	+	–
ND2	Protein-coding gene	4,027	5,076	1,050 bp	+	45.0%
tRNA-Trp	Transfer RNA	5,078	5,149	72 bp	+	–
tRNA-Ala	Transfer RNA	5,151	5,219	69 bp	−	–
tRNA-Asn	Transfer RNA	5,221	5,293	73 bp	−	–
tRNA-Cys	Transfer RNA	5,328	5,394	67 bp	−	–
tRNA-Tyr	Transfer RNA	5,395	5,465	71 bp	−	–
COX1	Protein-coding gene	5,467	7,017	1,551 bp	+	45.2%
tRNA-Ser (UCN)	Transfer RNA	7,018	7,088	71 bp	−	–
tRNA-Asp	Transfer RNA	7,093	7,166	74 bp	+	–
COX2	Protein-coding gene	7,181	7,871	691 bp	+	43.9%
tRNA-Lys	Transfer RNA	7,872	7,945	74 bp	+	–
ATP8	Protein-coding gene	7,947	8,114	168 bp	+	45.2%
ATP6	Protein-coding gene	8,105	8,788	684 bp	+	45.9%
COX3	Protein-coding gene	8,788	9,572	785 bp	+	48.4%
tRNA-Gly	Transfer RNA	9,573	9,642	70 bp	+	–
ND3	Protein-coding gene	9,643	9,991	349 bp	+	46.1%
tRNA-Arg	Transfer RNA	9,992	10,061	70 bp	+	–
ND4L	Protein-coding gene	10,062	10,358	297 bp	+	48.8%
ND4	Protein-coding gene	10,352	11,732	1,381 bp	+	44.7%
tRNA-His	Transfer RNA	11,733	11,801	69 bp	+	–
tRNA-Ser (AGY)	Transfer RNA	11,802	11,870	69 bp	+	–
tRNA-Leu (CUN)	Transfer RNA	11,872	11,944	73 bp	+	–
ND5	Protein-coding gene	11,945	13,783	1,839 bp	+	43.3%
ND6	Protein-coding gene	13,780	14,301	522 bp	−	48.5%
tRNA-Glu	Transfer RNA	14,302	14,370	69 bp	−	–
CYTB	Protein-coding gene	14,374	15,514	1,141 bp	+	47.1%
tRNA-Thr	Transfer RNA	15,515	15,586	72 bp	+	–
tRNA-Pro	Transfer RNA	15,586	15,655	70 bp	−	–
D-loop	Control region	15,656	16,656	1,001 bp	–	39.2%