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Boesemania microlepis (Bleeker, 1858)

Boeseman croaker
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Viet Nam country information

Common names: Ca suu
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from the Mekong basin (Ref. 43281); also reported from Song Hau Giang (a branch of the Mekong River also known as the Bassac River) (Ref. 87929). Also Ref. 36654.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/vm.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Sasaki, K., 2001
National Database:

Common names from other countries

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Eupercaria/misc (Various families in series Eupercaria) > Sciaenidae (Drums or croakers)
Etymology: Boesemania: Because of M. Boeseman, Dutch ichthyologist.
  More on author: Bleeker.

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

Freshwater; brackish; benthopelagic; potamodromous (Ref. 51243).   Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Asia: Thailand to Viet Nam and Sumatra.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 100.0 cm SL male/unsexed; (Ref. 9772); common length : 20.0 cm SL male/unsexed; (Ref. 9772); max. published weight: 18.0 kg (Ref. 43946)

Biology     Glossary (e.g. epibenthic)

Occur in flowing waters of large rivers. Found in the deep-water pools of the Mekong River even during the dry-season (Ref. 43946). Appear to be sedentary with no clear-cut migratory habits (Ref. 43946). Feed on crustaceans and small fishes (Ref. 12693). Loud continuous croaking was observed during the dry season in the deep water areas of the Mekong River which could be linked with spawning behavior (Ref. 43946). Marketed fresh (Ref. 12693). Most desirable and highly priced food fishes in the Mekong region (Ref. 43946). Reaches over a meter in length and at least 18 kg in weight (Ref. 43946).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Sasaki, K., 2001. Sciaenidae. Croakers (drums). p.3117-3174. In K.E. Carpenter and V.H. Niem (eds.) FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Volume 5. Bony fishes part 3 (Menidae to Pomacentridae). Rome, FAO. pp. 2791-3380. (Ref. 9772)

IUCN Red List Status (Ref. 130435)

  Data deficient (DD) ; Date assessed: 23 March 2020

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: highly commercial
FAO(Publication : search) | FishSource |

More information

Trophic ecology
Food items
Diet compositions
Food consumptions
Food rations
Predators
Ecology
Ecology
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Population dynamics
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Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
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Abundances
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Maturities
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Egg(s)
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Visual pigment(s)
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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00413 - 0.01752), b=3.08 (2.91 - 3.25), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.7   ±0.59 se; based on food items.
Resilience (Ref. 120179):  Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  High to very high vulnerability (73 of 100).
Price category (Ref. 80766):   Medium.