Teleostei (teleosts) >
Tetraodontiformes (Puffers and filefishes) >
Tetraodontidae (Puffers) > Tetraodontinae
Etymology: Carinotetraodon: Latin, carina = keel shaped, shell + Greek, tetra = four + Greek, odous = teeth (Ref. 45335); irrubesco: From the Latin irrubesco, meaning to redden or to blush, in allusion to the red dorsal and caudal fins of mature male specimens. Treated as Noun in apposition.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic; pH range: 6.0 - ?. Tropical
Asia: currently known only from the lower parts of the Banjuasin basin in Sumatra Selatan; and the Sambas river in Kalimantan Barat.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 4.4 cm SL male/unsexed; (Ref. 39332)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 10 - 12; Anal soft rays: 9 - 10; Vertebrae: 16 - 17. Males have red dorsal and caudal fins, sometimes with red anal fins, and lack a black blotch on the dorsal fin base. Males sometimes have a red dorsum. Have the following combination of characters: eye distinctly bulging above dorsal surface of head; dorsal fin rays 10-12 (mode 10); anal fin rays 9-10 (mode 10); pectoral fin rays 15-16 (mode 15); dorsal fin base length 9.3-11.7% SL; anal fin base length 7.5-9.5% SL (Ref. 39332).
Specimens typically caught along bank vegetation in large rivers. The specimen from Sambas were obtained amongst submerged bank vegetation. The water was murky brown, with pH about 6.0. Syntopic species include Rasbora tornieri, R. bankanensis, Doryichthys deokhatoides, Brachygobius doriae and Dermogenys sp. (Ref. 39332).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Tan, H.H., 1999. A new species of Carinotetraodon from Sumatra and Borneo and validity of C. borneensis (Teleostei:Tetraodontidae). Ichthyol. Explor. Freshwat. 10(4):345-354. (Ref. 39332)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02570 (0.01199 - 0.05511), b=2.89 (2.71 - 3.07), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.2 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
