Lethenteron zanandreai  (Vladykov, 1955)

Po brook lamprey
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    Lethenteron zanandreai
    Picture by Lorenzoni, M.
  • Image of Lethenteron zanandreai (Po brook lamprey)
    Lethenteron zanandreai
    Male picture by FAO

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Cephalaspidomorphi (lampreys) > Petromyzontiformes (Lampreys) > Petromyzontidae (Northern lampreys) > Lampetrinae
Etymology: Lethenteron: Greek, letheia = apathetic + Greek, enteron = intestine (Ref. 45335);  zanandreai: Specific name derived from the collector, Guiseppe Zanandrea, an avid student of Italian lampreys.

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; demersal; non-migratory.   Temperate; 5°C - 20°C (Ref. 12320); 47°N - 44°N, 9°E - 15°E

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Europe: Alpine slope of Po to Soca drainages (Italy, Switzerland, Slovenia), Esino and Potenza drainages on Adriatic coast of Central Italy; Mirna (Croatia) and Neretva drainage (Bosnia-Herzegovina, Croatia).

Length at first maturity / Size / Weight / Age

Maturity: Lm ?, range 8 - 20 cm
Max length : 26.0 cm TL male/unsexed; (Ref. 59043); max. reported age: 6 years (Ref. 12320)

Short description Morphology | Morphometrics

Adults: 11.8-15.6 cm TL. Body proportions, as percentage of TL (based on 19 specimens measuring 11.8-15.6 cm TL): prebranchial length, 10.2-13.7; branchial length, 9.3-11.9; trunk length, 45.5-52.6; tail length, 24.0-28.7; eye length, 1.6-2.5; disc length, 4.6-6.9. Urogenital papilla length, as a percentage of branchial length, in six spawning males measuring 12.8-13.9 cm TL, 23.5-40.0. Trunk myomeres, 54-60. Dentition: supraoral lamina, 2 unicuspid teeth; infraoral lamina, 5-8 unicuspid teeth, usually 7; three endolaterals on each side; endolateral formula, typically 2-3-2 (2-2-2 in the holotype); 2 rows of anterials; first row of anterials, 4 unicuspid teeth; 0-1 row of exolaterals on each side; single incomplete row of posterials with 2-5 unicuspid teeth (2 in the holotype); transverse lingual lamina, 5-7 unicuspid teeth, the median one enlarged; longitudinal lingual laminae each with about 6 or 7 unicuspid teeth. Velar tentacles, 3-5, with tubercles. Body coloration (preserved), dorsal and lateral aspects grayish, ventral surface whitish, dorsal fins and caudal fin yellowish. No dark blotch near the apex of the second dorsal fin. Lateral line neuromasts unpigmented. Caudal fin shape, spade-like.

Biology     Glossary (e.g. epibenthic)

Freshwater (Ref. 89241, 12320). Occurs in clean, cold water usually near springs in the foot-hill zone, over muddy or sandy bottom (Ref. (Ref. 12320). Ammocoetes inhabits detritus-rich sands or clay sediments (Ref. 59043). They are filter bottom-feeders. Metamorphosis takes place after 4.5 years (Ref. 12320). Short-lived, non-parasitic (Ref. 12320, 89241). Reproduction takes place from January to June. Its existence is threatened by habitat destruction and water abstraction (Ref. 26100).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Bianco, P.G., 1986. Lethenteron zanandreai (Vladykov, 1955). p. 237-246. In J. Holcík (ed.) The freshwater fishes of Europe. Vol. 1, Part 1. Petromyzontiformes. (Ref. 12320)

IUCN Red List Status (Ref. 115185)

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: of no interest; bait: occasionally
FAO(Publication : search) | FishSource |

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Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5039   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00120 (0.00052 - 0.00277), b=3.00 (2.80 - 3.20), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.5   ±0.37 se; Based on food items.
Resilience (Ref. 69278):  Low, minimum population doubling time 4.5 - 14 years (tm=5; tmax=5.5; Fec=2,000).
Prior r = 0.46, 2 SD range = 0.21 - 0.97, log(r) = -0.78, SD log(r) = 0.38, Based on: 2 tgen, 1 tmax, 1 Fec records
Vulnerability (Ref. 59153):  Moderate to high vulnerability (49 of 100) .