Tribe : Petromyzontini
Genus : Caspiomyzon
Species : wagneri
Accepted scientific name: Caspiomyzon wagneri (Kessler, 1870) (accepted name)
Synonyms:
Agnathomyzon caspicus Gratzianov, 1907 (synonym)
Agnathomyzon wagneri (Kessler, 1870) (synonym)
Petromyzon wagneri Kessler, 1870 (synonym)
Size / Weight / Age
Max length : 55.3 cm TL male/unsexed; common length : 36.0 cm TL male/unsexed; common length :37 cm TL (female); max. published weight: 206 g; max. reported age: 6 years
Length at first maturity
Lm ?, range 19 - 46 cm
Environment
Demersal; anadromous; freshwater; brackish; marine
Climate / Range
Temperate; ? - 23°C (Ref. 59043); 59°N - 35°N, 42°E - 58°E
Distribution
Eurasia: endemic to the Caspian Sea drainage. Construction projects along the rivers entering the Caspian Sea have had a very negative impact. Very rare now in the Volga river; reported to migrate for spawning to the Sura River and its tributaries (the Penza, Aiva, and Inza rivers) as far as Penza Ciry in the 1920s.
Short description
Dorsal spines (total): 0; Dorsal soft rays (total): 0 0. With many small teeth in regular backward-curved radiating rows. All teeth are low, blunt and button-shaped. The supraoral lamina is short, with one, rarely two closely connected teeth. The infraoral lamina have 4-6 large, blunt teeth. The width of the oral disc is less than the body width. Ammocoetes larvae have 53-68 trunk myomeres.
Biology
Non-parasitic lamprey. Ammocoetes larvae reach up to 13 mm TL and get up to 3 years old. They live in bottom deposits and feed on diatoms and detritus. In the intestines of adults, only the remains of algae and higher plants are found. However, they may also feed on dead fish and are known to attach themselves to trout, presumably for transport. A 22% reduction in total length occurs from the pre-spawning to the spawning period. Adults die after spawning. The flesh is reported to be poisonous to eat (ichthyosarcotoxic) and must be treated before consumption. Until 1868, all catches were dried and used as candles or for production of oil. Only thereafter it was used as food for humans, and is now considered a valuable and delicious fish
Human uses
Fisheries: commercial; aquaculture: experimental
Common names:
Common name/ Language/ Country
Kaspisk lampret Danish Denmark
Caspian lamprey English Russian Fed
Caspian lamprey English UK
Caspian lamprey English USA
Volga lamprey English USA
Kaspiasutt Estonian Estonia
Mahi Dahangerd Daryacheh-ye Khazar Persian Iran
Mar Mahi Persian Iran
Mar Mahi Dahangerd Persian Iran
Marmahi-e-Dahanguerd-e-Daryaye Khazar Persian Iran
Minóg kaspijski Polish Poland
каспийская минога Russian Russian Fed
минога каспийская Russian Russian Fed
Kaspiiskaya minoga ili volzhskaya minoga Russian Russian Fed
Kaspiskt nejonöga Swedish Sweden
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