AnAge entry for Oryzias latipes

Classification (HAGRID: 03440)

Taxonomy
Kingdom: Animalia
    Phylum: Chordata
        Class: Teleostei
            Order: Beloniformes
                Family: Adrianichthyidae
                    Genus: Oryzias
Species
Oryzias latipes
Common name
Japanese medaka

Lifespan, ageing, and relevant traits

Maximum longevity
5 years (captivity)
Source
ref. 683
Sample size
Medium
Data quality
Acceptable
Observations

These animals show a clear ageing phenotype with increasing mortality with age. In one study in captivity, most long-lived animals were found to be males [0683], however more recent studies indicate the females live longer [1204]. With age they became large, pale, bloated, and dull in movement [0683]. Female Japanese medaka share similar estrogen biology with mammals and demonstrate a decline in estrogen levels with ageing. Estrogen levels have been found to correlate with telomere length and telomerase activity in females [1204].

Life history traits (averages)

Female sexual maturity
Male sexual maturity
Incubation
10 days
Adult weight

Metabolism

No information on metabolism is available.

References

External Resources

Integrated Taxonomic Information System
ITIS 165622
Animal Diversity Web
ADW account (if available)
Encyclopaedia of Life
Search EOL
NCBI Taxonomy
Taxonomy ID 8090
Entrez
Search all databases
Ageing Literature
Search Google Scholar or Search PubMed
Images
Google Image search
Internet
Search Google