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Teleostei (teleosts) > Cypriniformes (Carps) > Cyprinidae (Minnows or carps) > Smiliogastrinae
Eponymy: Cedric Douglas Martenstyn (1946–1996) was a naturalist and diver, a Lieutenant Commander in the Sri Lankan Navy and Commander of the Navy’s Special Boat Service during the civil war against the Tamil insurgents. [...] (Ref. 128868), visit book page.
More on authors: Kottelat & Pethiyagoda.

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

Freshwater; benthopelagic. Tropical; 8°N - 7°N

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

Asia: Amban River, Sri Lanka.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 25.0 cm TL male/unsexed; (Ref. 6028)

Inhabits unshaded, rocky, mid-hill streams (Ref. 11966). Larger individuals form small groups of 5-10 fish, inhabiting relatively deep (1-5 m) rock pools at the bottom of cascades, usually sheltering behind boulders in very swift flow. Juveniles occur mainly in the shallow (< 1 m) areas of larger streams with sand or gravel substrates. Sympatric with Labeo fisheri over its known range.

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

Main reference Upload your references | References | Coordinator | Collaborators

Pethiyagoda, R., 1991. Freshwater fishes of Sri Lanka. The Wildlife Heritage Trust of Sri Lanka, Colombo. 362 p. (Ref. 6028)

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

Endangered (EN) (B1ab(iii)+2ab(iii)); Date assessed: 29 July 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: commercial

FAO - Publication: search | FishSource |

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Trophic ecology
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Ecology
Ecology

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Length-weight rel.
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Anatomy
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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01175 (0.00447 - 0.03086), b=3.01 (2.78 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 2.9 ±0.4 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (15 of 100).

Price category (Ref. 80766): Unknown.

Systomus martenstyni (Kottelat & Pethiyagoda, 1991)