MitoAge

Clangula hyemalis

Oldsquaw

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Maximum lifespan
22.7 yr
AnAge record
mtDNA size
16,642 bp
RefSeq NC_088446.1
GC content
48.98%
Whole genome
Non-coding
1,128 bp
D-loop 1,079 bp

Where Oldsquaw sits among 2,335 species

Whole-genome GC content against maximum lifespan. Oldsquaw has the 757th longest lifespan of them.

10203040501 yr10 yr100 yrMaximum lifespan, log scaleGC %Oldsquaw
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Plot other mtDNA features with this species highlighted

Base composition

Whole genome16,642 bp
GC skew (G − C) / (G + C)
−0.359
AT skew (A − T) / (A + T)
+0.144

Life history

Maximum lifespan
22.7 years
Adult weight
872 g
Birth weight
25 g
Female sexual maturity
2 years
Male sexual maturity
2 years
Gestation or incubation
24 days
Litter or clutch size
7
Litters per year
1

Lifespan from AnAge · AnAge record · other traits from AnAge build 15 (HAGRID 00335)

About this record

Lifespan source
AnAge build 15
Based on
an animal in the wild
Data quality
acceptable, small sample
Licence
Free to use, subject to the Human Ageing Genomic Resources conditions of use
Status
New in build 2
In the database since
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 genome16,642 bp
Protein-coding11,387 bp
12S rRNA989 bp
16S rRNA1,607 bp
All tRNA1,542 bp
D-loop1,079 bp

Genes and regions

Select a column to sort; select a gene to compare it across species
Composition
ND1NADH dehydrogenase subunit 1978 bp25.8%23.7%14.9%35.6%50.51%−0.409+0.041
ND2NADH dehydrogenase subunit 21,039 bp29.1%21.3%13.3%36.4%49.66%−0.465+0.155
COX1Cytochrome c oxidase subunit I1,551 bp25.4%23.7%17.5%33.4%50.87%−0.313+0.034
COX2Cytochrome c oxidase subunit II687 bp29.0%21.1%16.6%33.3%49.93%−0.335+0.157
ATP8ATP synthase F0 subunit 8168 bp32.1%18.5%9.5%39.9%49.41%−0.614+0.271
ATP6ATP synthase F0 subunit 6684 bp28.1%21.8%11.5%38.6%50.15%−0.539+0.126
COX3Cytochrome c oxidase subunit III784 bp26.0%22.4%16.8%34.7%51.53%−0.347+0.074
ND3NADH dehydrogenase subunit 3351 bp25.4%24.8%15.4%34.5%49.86%−0.383+0.011
ND4LNADH dehydrogenase subunit 4L297 bp24.2%22.9%17.2%35.7%52.86%−0.350+0.029
ND4NADH dehydrogenase subunit 41,378 bp29.2%22.0%12.3%36.5%48.84%−0.495+0.140
ND5NADH dehydrogenase subunit 51,824 bp29.5%21.1%13.9%35.6%49.45%−0.439+0.167
ND6NADH dehydrogenase subunit 6522 bp38.1%10.5%12.8%38.5%51.34%−0.500+0.567
CYTBCytochrome b1,143 bp26.0%23.0%15.0%36.0%51.01%−0.410+0.061
12S rRNA12S ribosomal RNA989 bp32.2%19.3%20.4%28.1%48.53%−0.158+0.250
16S rRNA16S ribosomal RNA1,607 bp34.4%19.4%19.8%26.4%46.17%−0.143+0.279
D-loopControl region (D-loop)1,079 bp26.3%24.5%14.6%31.7%47.66%−0.371+0.037

Codon usage

Counts per codon, darker is more frequent

3,801 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).

Phe F5.8%
UUU47
UUC172
Leu L17.6%
UUA38
UUG17
CUU39
CUC183
CUA299
CUG94
Ile I7.3%
AUU47
AUC229
Met M4.6%
AUA114
AUG59
Val V5.1%
GUU27
GUC64
GUA66
GUG38
Ser S7.3%
UCU23
UCC98
UCA88
UCG13
AGU7
AGC47
Pro P6.2%
CCU17
CCC107
CCA101
CCG10
Thr T8.1%
ACU29
ACC152
ACA116
ACG11
Ala A8.8%
GCU35
GCC191
GCA89
GCG19
Tyr Y2.7%
UAU18
UAC86
His H2.9%
CAU12
CAC99
Gln Q2.4%
CAA70
CAG21
Asn N3.2%
AAU16
AAC105
Lys K2.3%
AAA81
AAG8
Asp D1.6%
GAU12
GAC50
Glu E2.5%
GAA67
GAG28
Cys C0.8%
UGU1
UGC29
Trp W2.8%
UGA92
UGG15
Arg R1.9%
CGU1
CGC17
CGA37
CGG17
Gly G5.9%
GGU14
GGC81
GGA81
GGG47
Stop 0.3%
UAA7
UAG1
AGA0
AGG2

Genome map

38 annotated features in NC_088446.1

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 (49.0%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).
All 38 features as a table
FeatureTypeStartEndLengthStrandGC
D-loopControl region11,0791,079 bp–47.7%
tRNA-PheTransfer RNA1,0801,14869 bp+–
12S rRNARibosomal RNA1,1492,137989 bp+48.5%
tRNA-ValTransfer RNA2,1382,20871 bp+–
16S rRNARibosomal RNA2,2093,8151,607 bp+46.2%
tRNA-Leu (UUR)Transfer RNA3,8163,88974 bp+–
ND1Protein-coding gene3,8964,873978 bp+50.5%
tRNA-IleTransfer RNA4,8724,94473 bp+–
tRNA-GlnTransfer RNA4,9525,02271 bp−–
tRNA-MetTransfer RNA5,0225,09069 bp+–
ND2Protein-coding gene5,0916,1291,039 bp+49.7%
tRNA-TrpTransfer RNA6,1306,20576 bp+–
tRNA-AlaTransfer RNA6,2096,27769 bp−–
tRNA-AsnTransfer RNA6,2806,35273 bp−–
tRNA-CysTransfer RNA6,3536,41765 bp−–
tRNA-TyrTransfer RNA6,4186,48871 bp−–
COX1Protein-coding gene6,4908,0401,551 bp+50.9%
tRNA-Ser (UCN)Transfer RNA8,0328,10473 bp−–
tRNA-AspTransfer RNA8,1078,17569 bp+–
COX2Protein-coding gene8,1778,863687 bp+49.9%
tRNA-LysTransfer RNA8,8658,93369 bp+–
ATP8Protein-coding gene8,9359,102168 bp+49.4%
ATP6Protein-coding gene9,0939,776684 bp+50.2%
COX3Protein-coding gene9,77610,559784 bp+51.5%
tRNA-GlyTransfer RNA10,56010,62869 bp+–
ND3Protein-coding gene10,62910,980352 bp+49.9%
tRNA-ArgTransfer RNA10,98211,05170 bp+–
ND4LProtein-coding gene11,05211,348297 bp+52.9%
ND4Protein-coding gene11,34212,7191,378 bp+48.8%
tRNA-HisTransfer RNA12,72012,78869 bp+–
tRNA-Ser (AGY)Transfer RNA12,78912,85365 bp+–
tRNA-Leu (CUN)Transfer RNA12,85412,92471 bp+–
ND5Protein-coding gene12,92514,7481,824 bp+49.5%
CYTBProtein-coding gene14,74815,8901,143 bp+51.0%
tRNA-ThrTransfer RNA15,89315,96169 bp+–
tRNA-ProTransfer RNA15,97316,04270 bp−–
ND6Protein-coding gene16,05316,574522 bp−51.3%
tRNA-GluTransfer RNA16,57516,64268 bp−–

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