Sterna hirundo
Common tern
GC content
44.19%
Whole genome
Non-coding
1,230 bp
D-loop 1,154 bp
Where Common tern sits among 2,335 species
Whole-genome GC content against maximum lifespan. Common tern has the 367th longest lifespan of them.
- This species
- Other birds
- Other classes
Base composition
Whole genome16,707 bp
- GC skew (G − C) / (G + C)
- −0.354
- AT skew (A − T) / (A + T)
- +0.093
Life history
- Maximum lifespan
- 33 years
- Adult weight
- 120 g
- Birth weight
- 1.3 g
- Female sexual maturity
- 3 years
- Male sexual maturity
- 3 years
- Gestation or incubation
- 24 days
- Litter or clutch size
- 2.5
- Litters per year
- 1
- Postnatal growth rate
- 0.252 per day
Lifespan from AnAge · AnAge record · other traits from AnAge build 15 (HAGRID 00493)
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
- 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 RefSeqWhole genome16,707 bp
Protein-coding11,376 bp
12S rRNA967 bp
16S rRNA1,596 bp
All tRNA1,549 bp
D-loop1,154 bp
Genes and regions
Select a column to sort; select a gene to compare it across species| Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| ND1NADH dehydrogenase subunit 1 | 978 bp | 44.58% | −0.385 | −0.026 | |||||
| ND2NADH dehydrogenase subunit 2 | 1,039 bp | 41.58% | −0.505 | +0.091 | |||||
| COX1Cytochrome c oxidase subunit I | 1,551 bp | 45.52% | −0.280 | +0.004 | |||||
| COX2Cytochrome c oxidase subunit II | 684 bp | 45.61% | −0.333 | +0.043 | |||||
| ATP8ATP synthase F0 subunit 8 | 168 bp | 41.07% | −0.681 | +0.152 | |||||
| ATP6ATP synthase F0 subunit 6 | 684 bp | 43.71% | −0.545 | +0.044 | |||||
| COX3Cytochrome c oxidase subunit III | 784 bp | 46.30% | −0.311 | +0.064 | |||||
| ND3NADH dehydrogenase subunit 3 | 351 bp | 40.46% | −0.423 | −0.005 | |||||
| ND4LNADH dehydrogenase subunit 4L | 297 bp | 43.77% | −0.385 | +0.042 | |||||
| ND4NADH dehydrogenase subunit 4 | 1,378 bp | 44.27% | −0.505 | +0.083 | |||||
| ND5NADH dehydrogenase subunit 5 | 1,815 bp | 43.14% | −0.466 | +0.110 | |||||
| ND6NADH dehydrogenase subunit 6 | 522 bp | 47.51% | −0.597 | +0.591 | |||||
| CYTBCytochrome b | 1,143 bp | 44.62% | −0.427 | +0.027 | |||||
| 12S rRNA12S ribosomal RNA | 967 bp | 47.57% | −0.126 | +0.191 | |||||
| 16S rRNA16S ribosomal RNA | 1,596 bp | 44.42% | −0.145 | +0.177 | |||||
| D-loopControl region (D-loop) | 1,154 bp | 43.50% | −0.295 | +0.046 |
Codon usage
Counts per codon, darker is more frequent3,797 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).
Phe F5.9%
UUU64
UUC160
Leu L17.5%
UUA99
UUG22
CUU86
CUC126
CUA301
CUG31
Ile I7.5%
AUU106
AUC177
Met M4.6%
AUA142
AUG34
Val V4.7%
GUU36
GUC46
GUA71
GUG27
Ser S7.7%
UCU51
UCC79
UCA99
UCG8
AGU8
AGC49
Pro P5.7%
CCU41
CCC70
CCA100
CCG5
Thr T8.9%
ACU65
ACC133
ACA132
ACG7
Ala A7.9%
GCU76
GCC114
GCA99
GCG10
Tyr Y2.9%
UAU37
UAC75
His H2.7%
CAU31
CAC72
Gln Q2.6%
CAA80
CAG18
Asn N3.3%
AAU33
AAC94
Lys K2.2%
AAA81
AAG4
Asp D1.6%
GAU20
GAC42
Glu E2.5%
GAA78
GAG17
Cys C0.8%
UGU13
UGC17
Trp W2.8%
UGA96
UGG11
Arg R1.9%
CGU16
CGC17
CGA36
CGG4
Gly G5.8%
GGU46
GGC58
GGA78
GGG39
Stop 0.3%
UAA6
UAG1
AGA1
AGG2
Genome map
38 annotated features in NC_036345.1Hover, 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 (44.2%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).
All 38 features as a table
| Feature | Type | Start | End | Length | Strand | GC |
|---|---|---|---|---|---|---|
| tRNA-Phe | Transfer RNA | 1 | 72 | 72 bp | + | – |
| 12S rRNA | Ribosomal RNA | 73 | 1,039 | 967 bp | + | 47.6% |
| tRNA-Val | Transfer RNA | 1,040 | 1,111 | 72 bp | + | – |
| 16S rRNA | Ribosomal RNA | 1,112 | 2,707 | 1,596 bp | + | 44.4% |
| tRNA-Leu (UUR) | Transfer RNA | 2,708 | 2,781 | 74 bp | + | – |
| ND1 | Protein-coding gene | 2,790 | 3,767 | 978 bp | + | 44.6% |
| tRNA-Ile | Transfer RNA | 3,766 | 3,837 | 72 bp | + | – |
| tRNA-Gln | Transfer RNA | 3,847 | 3,917 | 71 bp | − | – |
| tRNA-Met | Transfer RNA | 3,917 | 3,985 | 69 bp | + | – |
| ND2 | Protein-coding gene | 3,986 | 5,024 | 1,039 bp | + | 41.6% |
| tRNA-Trp | Transfer RNA | 5,025 | 5,095 | 71 bp | + | – |
| tRNA-Ala | Transfer RNA | 5,097 | 5,165 | 69 bp | − | – |
| tRNA-Asn | Transfer RNA | 5,168 | 5,240 | 73 bp | − | – |
| tRNA-Cys | Transfer RNA | 5,243 | 5,309 | 67 bp | − | – |
| tRNA-Tyr | Transfer RNA | 5,310 | 5,380 | 71 bp | − | – |
| COX1 | Protein-coding gene | 5,382 | 6,932 | 1,551 bp | + | 45.5% |
| tRNA-Ser (UCN) | Transfer RNA | 6,924 | 6,997 | 74 bp | − | – |
| tRNA-Asp | Transfer RNA | 7,000 | 7,068 | 69 bp | + | – |
| COX2 | Protein-coding gene | 7,070 | 7,753 | 684 bp | + | 45.6% |
| tRNA-Lys | Transfer RNA | 7,755 | 7,824 | 70 bp | + | – |
| ATP8 | Protein-coding gene | 7,826 | 7,993 | 168 bp | + | 41.1% |
| ATP6 | Protein-coding gene | 7,984 | 8,667 | 684 bp | + | 43.7% |
| COX3 | Protein-coding gene | 8,667 | 9,450 | 784 bp | + | 46.3% |
| tRNA-Gly | Transfer RNA | 9,451 | 9,519 | 69 bp | + | – |
| ND3 | Protein-coding gene | 9,520 | 9,871 | 352 bp | + | 40.5% |
| tRNA-Arg | Transfer RNA | 9,876 | 9,944 | 69 bp | + | – |
| ND4L | Protein-coding gene | 9,946 | 10,242 | 297 bp | + | 43.8% |
| ND4 | Protein-coding gene | 10,236 | 11,613 | 1,378 bp | + | 44.3% |
| tRNA-His | Transfer RNA | 11,614 | 11,683 | 70 bp | + | – |
| tRNA-Ser (AGY) | Transfer RNA | 11,684 | 11,749 | 66 bp | + | – |
| tRNA-Leu (CUN) | Transfer RNA | 11,749 | 11,819 | 71 bp | + | – |
| ND5 | Protein-coding gene | 11,820 | 13,634 | 1,815 bp | + | 43.1% |
| CYTB | Protein-coding gene | 13,649 | 14,791 | 1,143 bp | + | 44.6% |
| tRNA-Thr | Transfer RNA | 14,796 | 14,865 | 70 bp | + | – |
| tRNA-Pro | Transfer RNA | 14,872 | 14,941 | 70 bp | − | – |
| ND6 | Protein-coding gene | 14,957 | 15,478 | 522 bp | − | 47.5% |
| tRNA-Glu | Transfer RNA | 15,482 | 15,553 | 72 bp | − | – |
| D-loop | Control region | 15,554 | 16,707 | 1,154 bp | – | 43.5% |