Malaysia country information

Common names: Belalak, Beliak mata, Bersia
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: commercial | Ref: FAO, 1992
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
National Checklist:
Country Information: httpss://www.cia.gov/library/publications/resources/the-world-factbook/geos/my.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Whitehead, P.J.P., 1985
National Database:

Classification / Names

Actinopterygii (ray-finned fishes) > Clupeiformes (Herrings) > Pristigasteridae (Pristigasterids)
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL

Common names from other countries

Alose-écaille indienne, Sardineta índica, Ditchelee, ... more

Main reference

Whitehead, P.J.P. 1985. (Ref. 188)
References | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 16.0 cm SL male/unsexed; (Ref. 188)

Length at first maturity
L_m 13.5 range ? - ? cm

Environment

Marine; freshwater; brackish; pelagic-neritic; anadromous (Ref. 51243); depth range 10 - 55 m (Ref. 12260)

Climate / Range

Tropical, preferred 28°C (Ref. 107945); 25°N - 30°S, 43°E - 155°E (Ref. 54703)

Distribution

Indo-West Pacific: Madagascar, and from Durban, South Africa to the Gulf of Oman and the coasts of India. From the Andaman Sea to Indonesia and the Philippines, southeast to the Arafura Sea (Ref. 9819), northern and western Australia and Papua New Guinea.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 0; Dorsal soft rays (total): 0; Anal spines: 0; Anal soft rays: 34 - 42. Belly with usually 18 or 19 + 8 or 9, total 26 to 28 scutes, strongly keeled. Eye large, lower jaw projecting; and upper jaw with a toothed hypo-maxillary bone between hind tip of pre-maxilla and lower bulge of maxilla blade. Dorsal fin origin near midpoint of body. Scales with upper and lower vertical striae slightly overlapping each other at center of scales.

Occurs in coastal areas, entering mangrove areas and estuaries, and freshwater as well (e.g. in the Pangani River, Tanzania), thus apparently fully euryhaline. Marketed fresh and may be dried or salted (Ref. 5284). Regarded as an excellent bait in the tuna fishery.

IUCN Red List Status (Ref. 115185)

Least Concern (LC)

Threat to humans

Harmless

Human uses

Fisheries: commercial; bait: usually

More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Food consumption
Ration

Common names
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development

Age/Size
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
Morphology
Larvae
Larval dynamics
Recruitment
Abundance

References
Aquaculture
Aquaculture profile
Strains
Genetics
Allele frequencies
Heritability
Diseases
Processing
Mass conversion

Collaborators
Pictures
Stamps, Coins
Sounds
Ciguatera
Speed
Swim. type
Gill area
Otoliths
Brains
Vision

Tools

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

Download XML

Summary page | Point data | Common names | Photos

Internet sources

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805)
PD₅₀ = 0.5156 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Trophic Level (Ref. 69278)
4.0 ±0.7 se; Based on size and trophs of closest relatives

Resilience (Ref. 69278)
High, minimum population doubling time less than 15 months (K=0.28-0.74)

Vulnerability (Ref. 59153)
Low vulnerability (21 of 100)

Price category (Ref. 80766)
Low

Pellona ditchela Valenciennes, 1847