Alosa aestivalis

Blueback shad

Maximum lifespan

8 yr

AnAge record

mtDNA size

16,646 bp

RefSeq NC_037017.1

GC content

46.62%

Whole genome

Non-coding

1,059 bp

D-loop 989 bp

Where Blueback shad sits among 2,335 species

Whole-genome GC content against maximum lifespan. Blueback shad has the 1,759th longest lifespan of them.

This species
Other ray-finned fishes
Other classes

Plot other mtDNA features with this species highlighted

Base composition

Whole genome16,646 bp

GC skew (G − C) / (G + C): −0.228
AT skew (A − T) / (A + T): +0.059

Life history

Maximum lifespan: 8 years
Adult weight: 110 g
Female sexual maturity: 4 years
Male sexual maturity: 3.5 years

Lifespan from AnAge · AnAge record · other traits from AnAge build 15 (HAGRID 03824)

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 RefSeq

Whole genome16,646 bp

Protein-coding11,403 bp

12S rRNA952 bp

16S rRNA1,685 bp

All tRNA1,547 bp

D-loop989 bp

Genes and regions

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

Base composition of Alosa aestivalis genes

ND1NADH dehydrogenase subunit 1	975 bp	24.5%	27.4%	17.2%	30.9%	48.10%	−0.284	−0.055
ND2NADH dehydrogenase subunit 2	1,045 bp	26.0%	23.8%	14.7%	35.4%	50.14%	−0.412	+0.044
COX1Cytochrome c oxidase subunit I	1,551 bp	24.8%	28.0%	20.3%	26.9%	47.20%	−0.139	−0.062
COX2Cytochrome c oxidase subunit II	691 bp	28.5%	26.8%	17.8%	26.9%	44.72%	−0.204	+0.031
ATP8ATP synthase F0 subunit 8	168 bp	31.5%	27.4%	12.5%	28.6%	41.07%	−0.391	+0.071
ATP6ATP synthase F0 subunit 6	684 bp	26.3%	28.7%	14.2%	30.8%	45.03%	−0.370	−0.043
COX3Cytochrome c oxidase subunit III	785 bp	25.9%	26.1%	17.8%	30.2%	48.03%	−0.257	−0.005
ND3NADH dehydrogenase subunit 3	349 bp	25.5%	29.2%	16.6%	28.7%	45.27%	−0.266	−0.068
ND4LNADH dehydrogenase subunit 4L	297 bp	24.6%	27.6%	16.5%	31.3%	47.81%	−0.310	−0.058
ND4NADH dehydrogenase subunit 4	1,381 bp	26.9%	27.0%	17.0%	29.1%	46.13%	−0.262	−0.003
ND5NADH dehydrogenase subunit 5	1,836 bp	28.5%	25.9%	14.9%	30.7%	45.59%	−0.345	+0.047
ND6NADH dehydrogenase subunit 6	522 bp	39.1%	15.5%	14.2%	31.2%	45.40%	−0.376	+0.432
CYTBCytochrome b	1,141 bp	26.4%	27.6%	16.7%	29.4%	46.01%	−0.276	−0.023
12S rRNA12S ribosomal RNA	952 bp	29.1%	20.4%	22.9%	27.6%	50.53%	−0.094	+0.176
16S rRNA16S ribosomal RNA	1,685 bp	33.0%	18.6%	22.2%	26.2%	48.37%	−0.082	+0.278
D-loopControl region (D-loop)	989 bp	33.7%	29.6%	15.4%	21.3%	36.70%	−0.163	+0.064

Codon usage

Counts per codon, darker is more frequent

Gene

3,806 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).

Phe F6.1%

UUU86

UUC148

Leu L16.1%

UUA94

UUG16

CUU133

CUC101

CUA196

CUG71

Ile I6.8%

AUU140

AUC119

Met M4.4%

AUA63

AUG103

Val V6.5%

GUU64

GUC48

GUA103

GUG32

Ser S6.4%

UCU48

UCC57

UCA73

UCG8

AGU13

AGC45

Pro P5.8%

CCU57

CCC84

CCA64

CCG16

Thr T7.9%

ACU56

ACC108

ACA119

ACG18

Ala A9.6%

GCU49

GCC178

GCA120

GCG20

Tyr Y3.1%

UAU34

UAC84

His H2.7%

CAU17

CAC85

Gln Q2.5%

CAA83

CAG12

Asn N2.9%

AAU37

AAC73

Lys K2.0%

AAA67

AAG8

Asp D2.0%

GAU20

GAC58

Glu E2.6%

GAA76

GAG22

Cys C0.8%

UGU17

UGC13

Trp W3.2%

UGA108

UGG12

Arg R2.0%

CGU8

CGC5

CGA53

CGG9

Gly G6.5%

GGU28

GGC62

GGA89

GGG69

Stop 0.2%

UAA5

UAG2

AGA0

AGG0

Genome map

38 annotated features in NC_037017.1

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 (46.6%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).

All 38 features as a table

Annotated features of Alosa aestivalis (NC_037017.1)
Feature	Type	Start	End	Length	Strand	GC
tRNA-Phe	Transfer RNA	1	68	68 bp	+	–
12S rRNA	Ribosomal RNA	69	1,020	952 bp	+	50.5%
tRNA-Val	Transfer RNA	1,021	1,092	72 bp	+	–
16S rRNA	Ribosomal RNA	1,093	2,777	1,685 bp	+	48.4%
tRNA-Leu (UUR)	Transfer RNA	2,778	2,852	75 bp	+	–
ND1	Protein-coding gene	2,853	3,827	975 bp	+	48.1%
tRNA-Ile	Transfer RNA	3,836	3,907	72 bp	+	–
tRNA-Gln	Transfer RNA	3,907	3,977	71 bp	−	–
tRNA-Met	Transfer RNA	3,977	4,045	69 bp	+	–
ND2	Protein-coding gene	4,046	5,090	1,045 bp	+	50.1%
tRNA-Trp	Transfer RNA	5,091	5,162	72 bp	+	–
tRNA-Ala	Transfer RNA	5,164	5,232	69 bp	−	–
tRNA-Asn	Transfer RNA	5,234	5,306	73 bp	−	–
tRNA-Cys	Transfer RNA	5,338	5,403	66 bp	−	–
tRNA-Tyr	Transfer RNA	5,406	5,476	71 bp	−	–
COX1	Protein-coding gene	5,478	7,028	1,551 bp	+	47.2%
tRNA-Ser (UCN)	Transfer RNA	7,029	7,099	71 bp	−	–
tRNA-Asp	Transfer RNA	7,104	7,172	69 bp	+	–
COX2	Protein-coding gene	7,185	7,875	691 bp	+	44.7%
tRNA-Lys	Transfer RNA	7,876	7,949	74 bp	+	–
ATP8	Protein-coding gene	7,951	8,118	168 bp	+	41.1%
ATP6	Protein-coding gene	8,109	8,792	684 bp	+	45.0%
COX3	Protein-coding gene	8,792	9,576	785 bp	+	48.0%
tRNA-Gly	Transfer RNA	9,577	9,648	72 bp	+	–
ND3	Protein-coding gene	9,649	9,997	349 bp	+	45.3%
tRNA-Arg	Transfer RNA	9,998	10,067	70 bp	+	–
ND4L	Protein-coding gene	10,068	10,364	297 bp	+	47.8%
ND4	Protein-coding gene	10,358	11,738	1,381 bp	+	46.1%
tRNA-His	Transfer RNA	11,739	11,807	69 bp	+	–
tRNA-Ser (AGY)	Transfer RNA	11,810	11,873	64 bp	+	–
tRNA-Leu (CUN)	Transfer RNA	11,875	11,946	72 bp	−	–
ND5	Protein-coding gene	11,947	13,782	1,836 bp	+	45.6%
ND6	Protein-coding gene	13,779	14,300	522 bp	−	45.4%
tRNA-Glu	Transfer RNA	14,301	14,369	69 bp	−	–
CYTB	Protein-coding gene	14,374	15,514	1,141 bp	+	46.0%
tRNA-Thr	Transfer RNA	15,515	15,586	72 bp	+	–
tRNA-Pro	Transfer RNA	15,585	15,655	71 bp	−	–
D-loop	Control region	15,656	16,644	989 bp	–	36.7%