Pseudobarbus swartzi Chakona & Skelton, 2017
Gamtoos redfin
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drawing shows typical species in Cyprinidae.
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drawing shows typical species in Cyprinidae.
Klassificering / Namn Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa
> Cypriniformes (Carps) > Cyprinidae (Minnows or carps) > Smiliogastrinae
Etymology: Pseudobarbus: Greek, pseudes = false + Latin, barbus = barbel (Ref. 45335); swartzi: The species is named after Dr. Ernst R. Swartz for his contribution to the biogeography and systematics of Pseudobarbus and the role that he played in mentoring students working on the systematics and biogeography of southern African freshwater fishes (Ref. 114782).
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.
Etymology: Pseudobarbus: Greek, pseudes = false + Latin, barbus = barbel (Ref. 45335); swartzi: The species is named after Dr. Ernst R. Swartz for his contribution to the biogeography and systematics of Pseudobarbus and the role that he played in mentoring students working on the systematics and biogeography of southern African freshwater fishes (Ref. 114782).
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.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde Ekologi
; sötvatten bentopelagisk. Subtropical
Utbredning Territorier | FAO områden | Ekosystem | Förekomster | Prickkarta | Utplanteringar | Faunafri
Africa: Gamtoos, Kabeljous and Swart River systems in South Africa (Ref. 114782).
Storlek / Vikt / Ålder
Kort beskrivning Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 0; Mjukstrålar i ryggfenan (totalt) : 10 - 11; Taggstrålar i analfenan: 0; Mjukstrålar i analfenan: 8; Ryggkotor: 37 - 38. Diagnosis: The possession of a single pair of oral barbels separates Pseudobarbus swartzi from P. burchelli, P. burgi, P. skeltoni and P. verloreni, all with two pairs (Ref. 114782). It differs from P. quathlambae by having larger scales and fewer scale rows along the lateral line , 35-37 lateral line scales in P. swartzi vs. more than 65 scales along lateral line in P. quathlambae (Ref. 114782). Pseudobarbus swartzi and P. senticeps show some overlap in barbel length, but are clearly separated by scale size; Pseudobarbus swartzi has a higher number of scale rows along the lateral line, 34-37 vs. 25-33, and around the caudal peduncle, 13-17 vs. 10-12; it further differs from P. senticeps by lacking a conspicuous lateral stripe which terminates in a triangular blotch at the base of the caudal fin (Ref. 114782). While there is some overlap in scale counts between P. swartzi and P. afer, it is uncommon; Pseudobarbus swartzi has a higher number of lateral scale series, 34-37, than P. afer which has fewer lateral scale series, 29-35; the two species further differ in scale pigmentation pattern, P. afer has a band of pigment along the centre of the scales, leaving a clear band along the distal edges of the scale, and producing a distinct mesh or net-like pattern which is more conspicuous on the latero-ventral scales, this pattern is not evident in P. swartzi (Ref. 114782). Pseudobarbus swartzi differs from P. asper by possession of fewer larger scales, 34-37 lateral line scales vs. 35-45 and 13-17 caudal peduncle scales vs. 16-22 (Ref. 114782). Lack of prominent black spots and blotches on the body distinguishes P. swartzi from P. phlegethon (Ref. 114782).
Body shape (shape guide): fusiform / normal; Cross section: compressed.
Body shape (shape guide): fusiform / normal; Cross section: compressed.
Pseudobarbus swartzi inhabits perennial mountain streams with clear or peat stained water as well as cobble, pebbles and boulders (Ref. 114782). Remnant populations of the species are under severe threat from multiple human impacts including habitat degradation, complete water abstraction and potential invasion by alien fish predators and competitors that are now dominant in mainstream sections of the rivers (Ref. 114782).
Livscykel och parningsbeteende Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Huvudreferens
Ladda upp dina referenser | referenser | Koordinator | Medarbetare
Chakona, A. and P.H. Skelton, 2017. A review of the Pseudobarbus afer (Peters, 1864) species complex (Teleostei, Cyprinidae) in the eastern Cape Fold Ecoregion of South Africa. ZooKeys 657:109-140. (Ref. 114782)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Sårbar (VU) (B1ab(iii,v)+2ab(iii,v)); Date assessed: 13 December 2016
CITES
Not Evaluated
Hot mot människor
Harmless
Mänskliga användningsområden
FAO - Publication: search | FishSource |
Ytterligare information
Trofisk ekologi
Livsmedelsartiklar (preys)
Födosammansättning
Födointag
Matransoner
Predatorer
Livsmedelsartiklar (preys)
Födosammansättning
Födointag
Matransoner
Predatorer
Populationsdynamik
Tillväxtparametrar
Max. åldrar / storlekar
Längd-vikt rel.
Längd-längd rel.
Längd-frekvenser
Massakonvertering
Rekrytering
Abundans
Tillväxtparametrar
Max. åldrar / storlekar
Längd-vikt rel.
Längd-längd rel.
Längd-frekvenser
Massakonvertering
Rekrytering
Abundans
Livscykel
Reproduktion
Könsmognad
Mognad/Gills rel.
Fekunditet
Lek
Lekande aggregat
Ägg
Utveckling av ägg
Larver
Larvdynamik
Reproduktion
Könsmognad
Mognad/Gills rel.
Fekunditet
Lek
Lekande aggregat
Ägg
Utveckling av ägg
Larver
Larvdynamik
Anatomi
Gälyta
Hjärna
Otolit
Gälyta
Hjärna
Otolit
Fysiologi
Kroppssammansättning
Näringsämnen
Syreförbrukning
Typ av simning
Simhastighet
Visuella pigment
Ljud från fisk
Sjukdomar & Parasiter
Toxicitet (LC50)
Kroppssammansättning
Näringsämnen
Syreförbrukning
Typ av simning
Simhastighet
Visuella pigment
Ljud från fisk
Sjukdomar & Parasiter
Toxicitet (LC50)
Genetik
Genom
Genetik
Heterozygositet
Ärftlighet
Genetisk mångfald
Genom
Genetik
Heterozygositet
Ärftlighet
Genetisk mångfald
Människorelaterad
Vattenbrukssystem
Vattenbruksprofiler
Avelslinjer
Ciguatera-fall
Frimärken, mynt, diverse.
Vattenbrukssystem
Vattenbruksprofiler
Avelslinjer
Ciguatera-fall
Frimärken, mynt, diverse.
Verktyg
Särskilda rapporter
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Internet-källor
AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: Släkte, Arter | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: Go, sök | World Records Freshwater Fishing | Zoobank | Zoologiskt register
Uppskattningar baserade på modeller
|
Index för fylogenetisk mångfald (Ref. 82804) |
PD50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.00603 (0.00281 - 0.01292), b=3.06 (2.87 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
|
Trofisk nivå (Ref. 69278) |
2.7 ±0.3 se; based on size and trophs of closest relatives |
|
Resiliens (Ref. 120179) |
Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.). |
|
Sårbarhet i fisket (Ref. 59153) |
Low vulnerability (15 of 100). 🛈 |