AnAge entry for Lontra canadensis

Classification (HAGRID: 02629)

Taxonomy
Kingdom: Animalia
    Phylum: Chordata
        Class: Mammalia (Taxon entry)
            Order: Carnivora
                Family: Mustelidae
                    Genus: Lontra
Species
Lontra canadensis
Common name
Northern river otter
Synonyms
Lutra canadensis

Lifespan, ageing, and relevant traits

Maximum longevity
27 years (captivity)
Source
ref. 671
Sample size
Medium
Data quality
Acceptable
Observations

There is a delayed implantation and thus the total gestation time varies from 290 to 380 days. The actual embryonic development takes about 60-63 days [0443]. One wild born female was as old as 27 when she died in captivity [0671].

Life history traits (averages)

Female sexual maturity
730 days
Male sexual maturity
730 days
Gestation
62 days
Weaning
122 days
Litter size
2.5 (viviparous)
Litters per year
0.9
Inter-litter interval
365 days
Weight at birth
140 g
Weight at weaning
1,510 g
Adult weight
9,000 g
Postnatal growth rate
Maximum longevity residual
137%

Metabolism

Typical body temperature
312ºK or 38.4ºC or 101.1ºF
Basal metabolic rate
Not yet available

References

External Resources

Integrated Taxonomic Information System
ITIS 180549
Animal Diversity Web
ADW account
Encyclopaedia of Life
Search EOL
NCBI Taxonomy
Taxonomy ID 76717
Entrez
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Ageing Literature
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Internet
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