Teleostei (teleosts) >
Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Serranochromis: Latin, serra = saw + Greek, chromis = a fish, perhaps a perch (Ref. 45335); swartzi: The specific name swartzi is named after the primary collector Dr. Ernst Swartz, ichthyologist at SAIAB and primary explorer on the Cuanza River programme (2005-2009) (Ref. 123822).
Eponymy: Dr Ernst Roelof Swartz was an Aquatic Biologist (2005–2010) and is now Senior Aquatic Biologist (2010–present) at the South African Institute for Aquatic Biodiversity, Grahamstown. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Tropical
Africa: Cuanza River in Angola (Ref. 123822).
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 14.0 cm SL male/unsexed; (Ref. 123822)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 14 - 15; Dorsal soft rays (total): 13 - 15; Anal spines: 3; Anal soft rays: 10. Diagnosis: The presence of ocelli throughout the anal fin of breeding males distinguishes Serranochromis swartzi from S. robustus and S. jallae in which the ocelli in breeding males are restricted to the posterior 4-5 membranes of the anal fin (Ref. 123822). The exposed teeth of S. swartzi differs from those of S. stappersi and S. altus, which possess small teeth that are burried in the lips; Serranochromis swartzi has an emarginate caudal fin, while S. macrocephalus, S. janus, and S. angusticeps have rounded caudal fins; the shorter jaw of S. swartzi, 44.4-52.0% of head length, separates it from S. spei, 53.5-57.2% of head length; Serranochromis swartzi has 34-37 lateral-line scales, while S. thumbergi possesses more than 39 lateral-line scales; the acute angle of the cleft of the mouth, 50-60° of horizontal, of S. meridianus delimits it from the 25° angle of S. swartzi; the long dark pectoral fins which reach past the middle of the dorsal fin separates S. longimanus from S. swartzi (Ref. 123822). The interorbital width, 14.3-15.9% of head length, of S. alvum is narrower than that of S. swartzi, 17.6-19.8% of head length; Serranochromis swartzi has a smaller preorbital depth, 16.2-18.9% of head length, and snout length, 29.6-31.9% of head length, than S. cuanza, 19.1-22.2% and 35.2-39.6% respectively; the greater preorbital depth, 19.1-22.2% of head length, of S. swartzi distinguishes it from S. cacuchi, which has a smaller preorbital depth, 11.3-15.5% of head length (Ref. 123822).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Stauffer, J.R., Jr., R. Bills and P.H. Skelton, 2021. Four new species of Serranochromis (Teleostei: Cichlidae) from the Cuanza and Okavango river systems in Angola, including a preliminary key for the genus. Zootaxa 4908(1):66-84. (Ref. 123822)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Tools
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01445 (0.00674 - 0.03099), b=2.99 (2.82 - 3.16), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.7 ±0.6 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).
