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Rasboroides rohani Batuwita, de Silva & Edirisinghe, 2013
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drawing shows typical species in Danionidae.
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drawing shows typical species in Danionidae.
Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) > Cypriniformes (Carps) > Danionidae (Danios) > Rasborinae
Etymology: rohani: Named for Rohan Pethiyagoda, founder of the Wildlife Heritage Trust of Sri Lanka (WHT), for his special commitment to the ichthyofauna of Sri Lanka and India; and for continuing support of biodiversity research and conservation in Sri Lanka.
Eponymy: Tilak Rohan David Pethiyagoda (d: 1955) (abbreviated to Rohan Pett by deed poll in 2010) is a Sri Lankan biologist. [...] (Ref. 128868), visit book page.
Etymology: rohani: Named for Rohan Pethiyagoda, founder of the Wildlife Heritage Trust of Sri Lanka (WHT), for his special commitment to the ichthyofauna of Sri Lanka and India; and for continuing support of biodiversity research and conservation in Sri Lanka.
Eponymy: Tilak Rohan David Pethiyagoda (d: 1955) (abbreviated to Rohan Pett by deed poll in 2010) is a Sri Lankan biologist. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range Ecology
Freshwater; benthopelagic. Tropical
Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Asia: Walawe River basin in Sri Lanka.
Size / Weight / Age
Short description Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 10; Anal soft rays: 9; Vertebrae: 29. Rasboroides rohani can be diagnosed from other congeners, R. vaterifloris and R. nigromarginatus, by having the dorsal-fin origin 3 (vs. 1) scale-widths behind pelvic-fin origin; and body depth 35.6-40.0 % SL in males, 33.3-36.8 % SL in females (vs. 31.1-32.8 in males and 31.0-31.7 in female R. vaterifloris, 28.2-33.0 in male and 26.9-29.1 in female R. nigromarginatus). It can be distinguished from R. pallidus by its greater size (up to 35.5 mm SL, vs. 24.6) and having 1/2 8 1/2 (vs. 1/2 6 1/2 or 1/2 7 1/2) scales on body in transverse line, 25-28 (vs. 20-24) scales in lateral series, 1 (vs. 2) lateral process on the kinethmoid and the pharyngeal-teeth formula of 5,4,2-2,4,5 (vs. 5,4,3-3,4,5). In addition, females of R. rohani can be separated from females of R. pallidus by having a lesser eye diameter (29-34 % HL, vs. 39-40) and a lesser interorbital width (25-28 % HL, vs. 33- 36) (Ref. 94541).
Occurs in shallow, slow-flowing, shady streams with sandy-silt substrate and dense leaf litter in
submontane forest. Sympatric with other fishes: Pethia nigrofasciata, Puntius titteya, Belontia signata and Rasbora microcephala (Ref. 94541).
Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Main reference
Upload your references | References | Coordinator | Collaborators
Batuwita, S., M. de Silva and U. Edirisinghe, 2013. A review of the danionine genera Rasboroides and Horadandia (Pisces: Cyprinidae), with description of a new species from Sri Lanka. Ichthyol. Explor. Freshwat. 24(2):121-140. (Ref. 94541)
CITES
Not Evaluated
Threat to humans
Harmless
Human uses
FAO - Publication: search | FishSource |
More information
Trophic ecology
Food items
Diet composition
Food consumption
Food rations
Predators
Food items
Diet composition
Food consumption
Food rations
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Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
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Abundance
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance
Life cycle
Reproduction
Maturity
Maturity/Gills rel.
Fecundity
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Eggs
Egg development
Larvae
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Maturity/Gills rel.
Fecundity
Spawning
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Anatomy
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Otolith
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Brain
Otolith
Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Genetics
Genetics
Heterozygosity
Heritability
Genetics
Heterozygosity
Heritability
Human related
Aquaculture systems
Aquaculture profiles
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Stamps, coins, misc.
Aquaculture systems
Aquaculture profiles
Strains
Ciguatera cases
Stamps, coins, misc.
Tools
E-book | Field guide | Length-frequency wizard | Life-history tool | Point map | Classification Tree
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Internet sources
AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoobank | Zoological Record
Estimates based on models
Phylogenetic diversity index (Ref. 82804): PD50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00891 (0.00390 - 0.02036), b=3.02 (2.82 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278): 3.1 ±0.4 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).