Hollandichthys taramandahy : fisheries

Hollandichthys taramandahy Bertaco & Malabarba, 2013

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Klassificering / Namn Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

> Characiformes (Characins) > Acestrorhamphidae (American tetras) > Thayeriinae
Etymology: Hollandichthys: From the Netherlands or a person with Holland name/surnametaramandahy: The specific name is in reference to the drainage of the type locality. In Tupi Guarani language, Taramandahy (=Tramandaí) means winding river, or where is about to harvest (related to fish harvesting). A noun in apposition.
Eponymy: Dr William Jacob Holland (1848–1932) was a Jamaican-born American Presbyterian minister, entomologist and palaeontologist. [...] (Ref. 128868), visit book page.

Miljö: miljö / Klimatzon / djupintervall / distributionsområde Ekologi

; sötvatten bentopelagisk. Tropical

Utbredning Territorier | FAO områden | Ekosystem | Förekomster | Prickkarta | Utplanteringar | Faunafri

South America: Rio Maquiné and rio Três Forquilhas, rio Tramandaí system in Rio Grande do Sul and rio Mampituba and Araranguá drainages in Santa Catarina, Brazil.

Storlek / Vikt / Ålder

Könsmognad: Lm ?  range ? - ? cm
Max length : 8.8 cm SL hane/ej könsbestämd; (Ref. 94715)

Kort beskrivning Bestämningsnycklar | Morfologi | Morfometri

Mjukstrålar i ryggfenan (totalt) : 11; Ryggkotor: 36 - 39. This species is distinguished from its congener Hollandichthys multifasciatus by having the following characters: a small, vertically expanded black spot present at base of median caudal-fin rays, clearly visible after fixation in formalin or alcohol (vs. black spot present on caudal fin; distinctive marks on adipose fin absent (vs. anterior portion of adipose fin black); humeral spot absent on specimens larger than 60.0 mm SL (vs. humeral spot always present; two black humeral spots present on small specimens of both species). Additional characters useful to diagnose H. taramandahy from H. multifasciatus include having 8-11 dorsal procurrent caudal-fin rays (vs. 10-15), 7-8 ventral procurrent caudal-fin rays (9-12), and shorter length of the penultimate branched anal-fin ray in adult males 9.0-12.3 in SL (vs. 11.1-20.8 in SL) (Ref. 94715).

Biologi     Ordlista (t.ex. epibenthic)

Found in lateral puddles of rivers and very small tributaries with shallow and lentic black waters, with mud and leaf on the bottom, and very dense riparian vegetation. Larger individuals measuring 7.0-8.0 cm SL were observed isolated and small specimens measuring 3.0-4.0 cm SL were encountered in groups of 3 to 6 fishes. Feeds on spiders, ants, beetles, and insect parts. Other fish collected along with this species include Astyanax laticeps, Astyanax sp., Cyanocharax itaime, Cyphocharax voga, Gymnotus sp., Hyphessobrycon luetkenii, Mimagoniates rheocharis, Phalloceros spiloura, and Steindachnerina biornata (Ref. 94715).

Livscykel och parningsbeteende Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver

Huvudreferens Ladda upp dina referenser | referenser | Koordinator | Medarbetare

Bertaco, V.A. and L.R. Malabarba, 2013. A new species of the characid genus Hollandichthys Eigenmann from coastal rivers of southern Brazil (Teleostei: Characiformes) with a discussion on the diagnosis of the genus. Neotrop. Ichthyol. 11(4):767-778. (Ref. 94715)

Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))

  Sårbar (VU) (B1ab(iii)); Date assessed: 18 May 2022

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Hot mot människor

  Harmless





Mänskliga användningsområden

Fiskeri: husbehovsfiske
FAO - Publication: search | FishSource |

Ytterligare information

Trofisk ekologi
Livsmedelsartiklar (preys)
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Ekologi
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Frimärken, mynt, diverse.
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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 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight a=0.01096 (0.00419 - 0.02867), b=3.08 (2.86 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trofisk nivå
(Ref. 69278)
3.2   ±0.4 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 (18 of 100). 🛈