Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
; sötvatten bentopelagisk; pH range: 5.8 - 6.3; dH range: 2 - 3; ej vandrande (Ref. 126106); djupintervall 0 - ? m. Temperate; 18°C - 21°C (Ref. 1672); 60°N - 35°N, 5°W - 145°E
Asia. Amur basin and Sakhalin Island, Russia. Introduced elsewhere.
Längd vid första mognad / Storlek / Vikt / Ålder
Könsmognad: Lm 3.5, range 3 - 4 cm
Max length : 11.0 cm TL hane/ej könsbestämd; (Ref. 5723); rapporterad maxålder: 5 år (Ref. 27368)
Taggstrålar i ryggfenan (totalt) : 3; Mjukstrålar i ryggfenan (totalt) : 8 - 10; Taggstrålar i analfenan: 3; Mjukstrålar i analfenan: 8 - 10; Ryggkotor: 34 - 38.
Body shape (shape guide): fusiform / normal.
Adults occur in ponds, lakes, marshes, muddy and sandy pools and backwaters of rivers (Ref. 5723). They feed mainly on plant material but also on small larvae of insects. Their occurrence is related to those of the bivalve Anodonta cygnea and other freshwater mussels (Ref. 30578). Known for their habit of laying eggs in the mantle cavity of freshwater mussels (Ref. 1739). Reproduction takes place from April to June (Ref. 30578). Migratory behaviour is undetermined (Ref. 126106).
Hides eggs in live invertebrates such as mussels, crabs or ascidians. The female develops a conduit ovipositor by which it deposits its ovules between the gills of the bivalve. The male then comes to deposit its seed close to the respiratory opening of the bivalve; at the interior of which fertilization takes place. The male keeps the eggs and alevins until they leave the refuge. In exchange, the fish rids the bivalve of its parasites (Ref. 30578). The young leave the mussel about 28 days after hatching, having reached a length of about 10 mm (Ref. 41678).
Bogutskaya, N.G. and A.M. Komlev, 2001. Some new data to morphology of Rhodeus sericeus (Cyprinidae: Acheilognathinae) and a description of a new species, Rhodeus colchicus, from West Transcaucasia. Proc. Zool. Inst. 287:81-97. (Ref. 50154)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Fiskeri: saknar intresse; Akvarium: Offentliga akvarier
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Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00933 (0.00581 - 0.01499), b=3.08 (2.95 - 3.21), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245). |
Trofisk nivå (Ref. 69278) |
2.1 ±0.08 se; based on food items. |
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Generation time |
3.4 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies. |
Resiliens (Ref. 120179) |
Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (tm=2; tmax=5; Fec=100). |
Sårbarhet i fisket (Ref. 59153) |
Low vulnerability (19 of 100). 🛈 |