Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Gobiiformes (Gobies) >
Gobiidae (Gobies) > Gobionellinae
Etymology: Schismatogobius: Greek, schisma, -atos = crack, fissure + latin, gobius = gudgeon (Ref. 45335); risdawatiae: Named for Ms. Renny Risdawati from Padang University, who helped in collecting freshwater fishes in Padang, Sumatra.
Eponymy: Dr Renny Risdawati (d: 1967) is a biologist at Padang University, Indonesia, where she is a lecturer. She helped the authors collect freshwater fishes in Padang. (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; demersal. Tropical
Asia: Indonesia (Sumatra).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.0 cm SL male/unsexed; (Ref. 116448); 2.7 cm SL (female)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 7; Dorsal soft rays (total): 9; Anal spines: 1; Anal soft rays: 9. Schismatogobius risdawatiae is distinguished by the following characters: pectoral fin usually with 16 rays; pectoral fins with a broad dorsal black band; membrane in first dorsal fin posterior to spine 6 partly connected to base of spine of second dorsal fin in male and not in female; ventral surface of head in male brownish, frenum slightly pigmented; ventral surface of head in female whitish with a blackish border and a white mentum; and frenum and pelvic disk whitish (Ref. 116448).
This species was collected in freshwater streams with moderate to fast flow, in shallow areas with gravel and boulders, just above the tidal influence at elevation ranging from 16 to 45 m (Ref. 116448).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Keith, P., C. Lord, H. Darhuddin, G. Limmon, T. Sukmono, R. Hadiaty and N. Hubert, 2017. Schismatogobius (Gobiidae) from Indonesia, with description of four new species. Cybium 41(2):195-211. (Ref. 116448)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
Tools
Special reports
Download XML
Internet sources
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=0.00724 (0.00338 - 0.01553), b=3.05 (2.87 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±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).