AnAge entry for Squalus acanthias
Classification (HAGRID: 01854)
- Taxonomy
-
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes (Taxon entry)
Order: Squaliformes
Family: Squalidae
Genus: Squalus
- Species
- Squalus acanthias
- Common name
- Spur dogfish
- Synonyms
- Squalus fernandinus, Koinga kirki, Squalus tasmaniensis
Lifespan, ageing, and relevant traits
- Maximum longevity
- 75 years (wild)
- Source
- ref. 822
- Sample size
- Medium
- Data quality
- Acceptable
- Observations
These animals take about 20 years to reach sexual maturity and are extremely long-lived [0523]. Although their exact longevity is unknown, some estimates indicate these animals can live up to 50-75 years [0022].
Life history traits (averages)
- Female sexual maturity
- 7,668 days
- Male sexual maturity
- 3,163 days
- Litter size
- 8 (viviparous)
- Interbirth interval
- 730 days
- Adult weight
- 5,005 g
Metabolism
No information on metabolism is available.
References
- [0822] Garcia et al. (2008), The importance of habitat and life history to extinction risk in sharks, skates, rays and chimaeras (PubMed)
- [0022] Cailliet et al. (2001), Age determination and validation studies of marine fishes: do deep- dwellers live longer? (PubMed)
- [0523] Das (1994), Age determination and longevity in fishes (PubMed)
- [0369] Siezen (1989), Eye lens aging in the spiny dogfish (Squalus acanthias) I. Age determination from lens weight (PubMed)
- [0370] Doyle (1968), Ageing changes in cartilage from Squalus acanthias L (PubMed)
- [0454] Froese and Pauly, FishBase
External Resources
- Integrated Taxonomic Information System
- ITIS 160617
- Animal Diversity Web
- ADW account (if available)
- Encyclopaedia of Life
- Search EOL
- NCBI Taxonomy
- Taxonomy ID 7797
- Entrez
- Search all databases
- Ageing Literature
- Search Google Scholar or Search PubMed
- Images
- Google Image search
- Internet
- Search Google