Teleostei (teleosts) >
Cypriniformes (Carps) >
Balitoridae (River loaches)
Etymology: meridionalis: meridionalis means southern, as it is the southernmost species of the genus in the Indochinese peninsula (Ref. 37826).
More on author: Kottelat.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; demersal. Tropical
Asia: Cambodia and Thailand (Ref. 12693). Reported from the Mekong basin in Yunnan, China (Ref. 39226).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 8.2 cm SL male/unsexed; (Ref. 37826)
Dorsal soft rays (total): 11; Anal soft rays: 8. Distinguished from other species of the genus by the combination of the following characters: lateral length of head 19-22% SL (23-25% in B. mysorensis), caudal peduncle 1.9-2.8 times longer than deep (3.0-4.2 times in B. burmanica and B. brucei). Distinguished from B. annamitica by its color pattern consisting of somewhat irregular blotches on the back (versus circular in B. annamitica) (Ref. 37826). With 9-10 unbranched pectoral-fin rays (Ref. 12693).
Inhabits high gradient streams. Feed on benthic insects, small amounts of phytoplankton and periphyton.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Rainboth, W.J., 1996. Fishes of the Cambodian Mekong. FAO species identification field guide for fishery purposes. FAO, Rome, 265 p. (Ref. 12693)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00708 (0.00314 - 0.01595), b=3.04 (2.85 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 2.4 ±0.22 se; based on food items.
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).