River lamprey (Lampetra fluviatilis) fish profile and information / pictures of River lamprey - Lampetra fluviatilis

River lamprey (Lampetra fluviatilis) fish profile

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Scientific Name Lampetra fluviatilis
Classified By Linnaeus, 1758
Common Name River lamprey
Class Lampreys (Cephalaspidomorphi)
Order Lampreys (Petromyzontiformes)
Family Lampreys (Petromyzontidae)
Biology Amphihaline species. Adults live in the sea, but not as far from the coastline as Petromyzon marinus. They also occur in estuaries. Ammocoetes live in detritus-rich sand or clay sediments. In autumn, adults commonly undergo reproductive migration from the sea to the rivers. During reproductive migration and reproduction, adults do not feed but instead utilize their lipid reserves and are known to undergo a considerable shortening of up to 27 per cent. They spawn in strong-current habitats of rivers and streams. Spawning takes place in pre-excavated pits in river beds, its depth between 50 cm and 1 m; after spawning the adults die. The blind ammocoetes larvae are filter feeders and live mostly buried in the river bed. Metamorphosis takes pl
Climate Temperate
Water Temperature From - Celcius 5 °C
Water Temperature To - Celcius 18 °C
Depth From - meters 10 m
Depth To - meters Unknown m
Zone demersal
Distribution Europe: coastal waters and rivers of north-western Mediterranean Sea , along European Atlantic coast, North Sea and the whole of Baltic Sea. Absent from Black, Caspian and Polar seas. Landlocked populations from Lake Mjosa in Norway , Lakes Ladoga and Onega, upper Volga in Russia, Loch Lomond in Scotland, some Finnish lakes and possibly in Lough Neagh in Ireland. Appendix III of the Bern Convention. Protected by law in the Netherlands.
Region Europe
Range 69°N - 38°N, 11°W - 29°E
Maximum Length 50.0 cm
Common Length 32 cm
Environment Marine; freshwater; brackish; demersal; anadromous ; depth range 10 - ? m
Vulnerability High vulnerability (62 of 100)
Resilience Medium, minimum population doubling time 1.4 - 4.4 years (tm=4-6; tmax=10; fec = 4,000)
Threat To Humans Poisonous to eat (Ref. 5504)
IUCN Red List Status Least Concern (LC)
Human Uses Fisheries: minor commercial; bait: usually
Phylogenetic Diversity Index PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)
Trophic Level 4.5 s.e. 0.80 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