Oman country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: never/rarely | Ref:
Regulations: no regulations | Ref:
Uses: no uses
Comments: Known from Dhofar. Group size up to 25 animals, with females, juveniles and a few males (Ref. 129402). C: Ref. 129402; M: Ref. 1394.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/mu.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Minton, G., T. Collins, K. Findlay and R. Baldwin, 2010
National Database:

Common names from other countries

Balyena, ... more

Classification / Names / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS

Mammalia > Cetartiodactyla () > Physeteridae (sperm whales)

Environment: milieu / climate zone / depth range / distribution range Ecology

Pelagic; oceanodromous (Ref. 75906); depth range 0 - 3200 m (Ref. 1005), usually 500 - 500 m (Ref. 75906). Tropical; 90°N - 90°S, 180°W - 180°E

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Circumglobal.

Length at first maturity / Size / Weight / Age

Maturity: L_m ?, range 830 - 920 cm Max length : 2,400 cm TL male/unsexed; (Ref. 99323); 1200 cm TL (female); max. published weight: 57.0 t (Ref. 1394)

Largest sperm whale (Ref. 1394). Sperm whaling has a long history. The most intense periods were the Yankee whaling era of the 1800s and the factory ship whaling of the 20th century. Recent findings of studies on social behavior and breeding undermine assumptions in the models on which exploitation and management have long been based. Certain populations have been depleted, but the sperm whale remains the most abundant of all the great whales (Great whales generally include the sperm whale and all baleen whales, except the pygmy right whale) (Ref. 1394). Maximum size of female species based from Ref. 1394.

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Mature females live in socially cohesive groups of 10-30 individuals which include immature males and females and within is a communal suckling and caring of the young. Also, males leave the group at the age of 6 (Ref. 97765).

Main reference References | Coordinator | Collaborators

Jefferson, T.A., S. Leatherwood and M.A. Webber. 1993. (Ref. 1394)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Vulnerable (VU) (A1d); Date assessed: 30 June 2008

CITES status (Ref. 108899)

Appendix I: International trade banned

CMS (Ref. 116361)

Appendix I & II: Endangered migratory species conserved through agreements

Human uses

Fisheries: commercial
FAO - Fisheries: landings, species profile | FishSource | Sea Around Us

Tools

E-book | Field guide

More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items

Common names
Synonyms
Predators
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development

Age/Size
Growth
Length-weight
Length-length
Morphology
Larvae
Abundance

References
Mass conversion

Collaborators
Pictures

Internet sources

Estimates based on models

Preferred temperature (Ref. 115969): 0.3 - 3.8, mean 1.7 (based on 39945 cells).

Resilience (Ref. 69278) Low, minimum population doubling time 4.5 - 14 years (K=0.05-0.16; tm=10).

Vulnerability (Ref. 71543): Very high vulnerability (83 of 100).

Price category (Ref. 80766): Unknown.

Physeter macrocephalus Linnaeus, 1758