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Cypriniformes (Carps) >
Danionidae (Danios) > Rasborinae
Eponymy: Dr Martin Ralph ‘Marty’ Brittan (1922–2008) was an American ichthyologist and all-round naturalist. [...] (Ref. 128868), visit book page.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
; sötvatten bentopelagisk. Tropical
Asia: coastal floodplain of the southern Indian states of Kerala, Tamil Nadu and perhaps also Karnataka.
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 2.0 cm SL hane/ej könsbestämd; (Ref. 94541)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Mjukstrålar i ryggfenan (totalt) : 10; Mjukstrålar i analfenan: 8; Ryggkotor: 24. Horadandia brittani can be diagnosed from its congener H. atukorali by the combination of the following characters: deeper body (depth 27.7-31.9 % SL, vs. 24.6-29.8); dorsal profile of head approximately straight (vs. concave) behind level of eye; lesser eye diameter (27-37 % HL, vs. 37-41); origin of dorsal fin distinctly behind (vs. slightly posterior to) origin of pelvic fin; pelvic fin just reaching (vs. reaching beyond) origin of anal fin; origin of dorsal fin located closer to hypural notch than to snout tip (vs. dorsal-fin origin located halfway between snout tip and hypural notch); a lateral process on side of kinethmoid absent (vs. present); palatine process of maxilla obtuse (vs. acute); and supraorbital length ~44 % eye diameter (vs. ~50 %) (Ref. 94541).
Body shape (shape guide): fusiform / normal.
Inhabits coastal floodplain (Ref. 94541).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
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)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
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Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref. 82804) |
PD50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00891 (0.00382 - 0.02082), b=3.02 (2.82 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trofisk nivå (Ref. 69278) |
3.0 ±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 (10 of 100). 🛈 |