Caspian lamprey (Caspiomyzon wagneri) fish profile and information / pictures of Caspian lamprey - Caspiomyzon wagneri

Caspian lamprey (Caspiomyzon wagneri) fish profile

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Scientific Name Caspiomyzon wagneri
Classified By Kessler, 1870
Common Name Caspian lamprey
Class Lampreys (Cephalaspidomorphi)
Order Lampreys (Petromyzontiformes)
Family Lampreys (Petromyzontidae)
Biology Non-parasitic lamprey. Adults occur in the sea and spawn in reaches of rivers and streams with strong current. 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 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.
Climate Temperate
Water Temperature From - Celcius Unknown °C
Water Temperature To - Celcius 23 °C
Depth From - meters Unknown m
Depth To - meters Unknown m
Zone demersal
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. Migrates to uppermost tributaries of Volga. Reported to migrate for spawning to the Sura River and its tributaries as far as Penza Ciry in the 1920s.
Region Eurasia
Range 59°N - 35°N, 42°E - 58°E
Maximum Length 55.3 cm
Common Length 37 cm
Environment Marine; freshwater; brackish; demersal; anadromous
Vulnerability Low to moderate vulnerability (29 of 100)
Resilience Medium, minimum population doubling time 1.4 - 4.4 years (tm=tmax=4-6)
Threat To Humans Poisonous to eat (Ref. 4537)
IUCN Red List Status Near Threatened (NT)
Human Uses Fisheries: commercial; aquaculture: experimental
Phylogenetic Diversity Index PD50 = 0.6250 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)
Trophic Level 2 s.e. 0.00 Based on food items.
Is kept in Aquariums False
Occurs in Marine / Salt water True
Occurs in Brackish water True
Occurs in Fresh Water True
Occurs on Reefs False