Rhodeus caspius, Esmaeili, Sayyadzadeh, Japoshvili, Eagderi, Abbasi & Mousavi-Sabet, 2020
|
publication ID |
https://doi.org/10.1515/9783111677811 |
|
DOI |
https://doi.org/10.5281/zenodo.17819604 |
|
persistent identifier |
https://treatment.plazi.org/id/C85F87D2-FFC8-FF82-28AB-FC33FDA8FD62 |
|
treatment provided by |
Felipe |
|
scientific name |
Rhodeus caspius |
| status |
|
Common name. Caspian bitterling.
Diagnosis. Distinguished from R. colchicus by: ● second infraorbital bone narrow / ○ 35−36 total vertebrae / ● 34−37 scales in lateral series. No morphological character known to distinguish from R. amarus . Size up to 60 mm SL, likely to grow larger.
Distribution. Caspian basin from Kura east to Gorgan ( Iran). Introduced to Lake Urmia basin, upper Karkheh in Iran, and possibly elsewhere. Distribution in northern Caspian unknown.
Eggs of Rhodeus in the gills of a Unio mussel. © M. Reichard.
Habitat. Slow-flowing streams and small rivers, backwaters, ponds, and lakes, usually with dense underwater vegetation and sand-silt substrate.
Biology. Spawns April–September. Mating and spawning Behaviour similar to R. amarus . Larvae incubated by Unio bivalves. Feeds on algae, benthic insect larvae, and planktonic crustaceans.
Conservation status. LC.
Remarks. Diagnostic character proposed to distinguish this species from R. amarus could not be confirmed.
Further reading. Bartáková et al. 2019 (phylogeny); Esmaeili et al. 2020a (description).
Rhodeus colchicus ; Sochi, Russia; ~ 65 mm SL.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.