Articles on this page are available in 1 other language: Chinese (Simplified) (4) (learn more)

Overview

Comprehensive Description

Biology

Travels 300 km up the Mekong River, above Phnom Penh but believed to reproduce only in marine waters. Feeds on fishes and swims well upstream river because of easy food availability (Ref. 12693). No information on biology available (Ref. 9684). It is a prized food fish in Japan and probably in China as well. Utilized fresh, dried or salted and smoked; consumed pan-fried, broiled and baked (Ref. 9987).
  • Collette, B.B. and C.E. Nauen 1983 FAO Species Catalogue. Vol. 2. Scombrids of the world. An annotated and illustrated catalogue of tunas, mackerels, bonitos and related species known to date. Rome: FAO. FAO Fish. Synop. 125(2):137 p. (Ref. 168)
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Distribution

Range Description

This western Pacific species is found in Akita, Honshu, Sea of Japan, the Yellow Sea and China south to Viet Nam and Cambodia where it enters the Mekong River. This is the only scombrid species that moves long distances into freshwater.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Western Pacific: Akita, Honshu, Sea of Japan, Yellow Sea and China south to Vietnam and Cambodia where it enters the Mekong River.
  • Collette, B.B. and C.E. Nauen 1983 FAO Species Catalogue. Vol. 2. Scombrids of the world. An annotated and illustrated catalogue of tunas, mackerels, bonitos and related species known to date. Rome: FAO. FAO Fish. Synop. 125(2):137 p. (Ref. 168)
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Western Pacific from Japan and China south to Vietnam and Cambodia where it enters the Mekong River.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© FishWise Professional

Source: FishWise Professional

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Physical Description

Morphology

Dorsal spines (total): 15 - 17; Dorsal soft rays (total): 15 - 17; Analspines: 0; Analsoft rays: 16 - 19; Vertebrae: 41 - 42
  • Collette, B.B. and C.E. Nauen 1983 FAO Species Catalogue. Vol. 2. Scombrids of the world. An annotated and illustrated catalogue of tunas, mackerels, bonitos and related species known to date. Rome: FAO. FAO Fish. Synop. 125(2):137 p. (Ref. 168)
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Size

Maximum size: 2000 mm FL
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© FishWise Professional

Source: FishWise Professional

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Max. size

247 cm TL (male/unsexed; (Ref. 83530)); max. published weight: 131 g (Ref. 83530)
  • IGFA 2009 Database of IGFA angling records until 2009. IGFA, Fort Lauderdale, USA. (Ref. 83530)
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Diagnostic Description

Interpelvic process small and bifid. Body covered with small scales. Lateral line abruptly curving down below first dorsal fin. Intestine with 2 folds and 3 limbs. Swim bladder present. Sides silvery with large round, indistinct spots in two poorly defined rows in adults. Juveniles with saddle-like blotches extending down to about middle of body.
  • Collette, B.B. and C.E. Nauen 1983 FAO Species Catalogue. Vol. 2. Scombrids of the world. An annotated and illustrated catalogue of tunas, mackerels, bonitos and related species known to date. Rome: FAO. FAO Fish. Synop. 125(2):137 p. (Ref. 168)
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This species travels 300 km up the Mekong River, above Phnom Penh but believed to reproduce only in marine waters, although D’Aubenton and Blanc (1965) reported on juveniles as small as 165 mm fork length (FL) from Tonle Sap, Cambodia. It feeds on fishes and swims well upstream river because of easy food availability. It is an epipelagic, neritic and estuarine species. There is no information on biology available. This is likely a long-lived species given its relatively large size.

Maximum size is probably longer than 218 cm FL, 131 kg. The all-tackle game fish record is of a 131 kg fish caught off Cheju-Do, Korea in 1982 (IGFA 2011).

Systems
  • Freshwater
  • Marine
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Environment

pelagic-neritic; amphidromous; freshwater; brackish; marine; depth range 10 - ? m
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Migration

Amphidromous. Refers to fishes that regularly migrate between freshwater and the sea (in both directions), but not for the purpose of breeding, as in anadromous and catadromous species. Sub-division of diadromous. Migrations should be cyclical and predictable and cover more than 100 km.Characteristic elements in amphidromy are: reproduction in fresh water, passage to sea by newly hatched larvae, a period of feeding and growing at sea usually a few months long, return to fresh water of well-grown juveniles, a further period of feeding and growing in fresh water, followed by reproduction there (Ref. 82692).
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Trophic Strategy

Feeds on fishes and swims well upstream river because of easy food availability (Ref. 12693).
  • Rainboth, W.J. 1996 Fishes of the Cambodian Mekong. FAO Species Identification Field Guide for Fishery Purposes. FAO, Rome, 265 p. (Ref. 12693)
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Partner Web Site: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
DD
Data Deficient

Red List Criteria

Version
3.1

Year Assessed
2011

Assessor/s
Collette, B., Chang, S.-K., Di Natale, A., Fox, W., Juan Jorda, M., Nelson, R. & Uozumi, Y.

Reviewer/s
Russell, B. & Polidoro, B.

Contributor/s

Justification
This species is very poorly known, and may be confused with Scomberomorus niphonius in some parts of its range. Given its large size, it is likely to be vulnerable to fishing pressure throughout its range, but there are no catch landings available for this species. It is listed as Data Deficient. More research is needed on the status of this species population, its biology and the likely impact of fisheries.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Population

Population
There is no population information for this species. This species is not common. There is no catch report for this species between 1975–1981 but it is a prized food fish in Japan and possibly in China (Collette and Nauen 1983). However, this species is likely confused with S. niphonius in central to southern China.

Population Trend
Unknown
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Threats

Major Threats
It is a prized food fish in Japan and probably in China as well. It is caught in the Mekong River of Cambodia and commanded a high price in the Phnom Penh market in 1964 (D'Aubenton and Blanc 1965). It is utilized fresh, dried or salted and smoked and is consumed pan-fried, broiled and baked. However, this species is not currently common in markets in Japan (Uozumi pers comm 2009).
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Data deficient (DD)
  • IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006.
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Management

Conservation Actions

Conservation Actions
There are no species-specific conservation measures. Research is needed to determine the status of this species population, in addition to more information on its biology.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Relevance to Humans and Ecosystems

Benefits

Importance

fisheries: commercial; gamefish: yes
  • International Game Fish Association 1991 World record game fishes. International Game Fish Association, Florida, USA. (Ref. 4699)
  • Coppola, S.R., W. Fischer, L. Garibaldi, N. Scialabba and K.E. Carpenter 1994 SPECIESDAB: Global species database for fishery purposes. User's manual. FAO Computerized Information Series (Fisheries). No. 9. Rome, FAO. 103 p. (Ref. 171)
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Disclaimer

EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

To request an improvement, please leave a comment on the page. Thank you!