Entosphenus macrostoma, Vancouver lamprey

Entosphenus macrostoma (Beamish, 1982)

Vancouver lamprey
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Image of Entosphenus macrostoma (Vancouver lamprey)
Entosphenus macrostoma
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Clasificación / Nombres Nombres comunes | Sinónimos | Catalog of Fishes(Género, Especie) | ITIS | CoL | WoRMS | Cloffa

> Petromyzontiformes (Lampreys) > Petromyzontidae (Northern lampreys) > Lampetrinae
Etymology: Entosphenus: entos (Gr.), within; sphenos (Gr.), wedge, referring to wedge-shaped tooth within mouth on tongue of E. tridentatus (See ETYFish)macrostoma: macro-, from makros (Gr.), long or large; stoma (Gr.), mouth (but used here as an adjective, mouthed), referring to large oral disc compared with E. tridentatus (See ETYFish).

Entorno: milieu / zona climática / rango de profundidad / gama de distribución Ecología

; agua dulce demersal; potamodromo (Ref. 126106). Temperate; 48°N - 47°N

Distribución Territorios | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Mapa de puntos | Introducciones | Faunafri

North America: southern Vancouver Island, British Columbia. Occurrence in USA needs confirmation (Ref. 2583).

Tamaño / Peso / Edad

Madurez: Lm ?  range ? - ? cm
Max length : 27.3 cm TL macho / no sexado; (Ref. 89241); peso máximo publicado: 19.80 g (Ref. 89241); edad máxima reportada: 2.00 años (Ref. 89241)

Descripción breve Claves de identificación | Morfología | Morfometría

Adults: 11.8-27.3 cm TL; body wet weigth of a 22.1 cm TL individual, 19.8 g; body proportions, as percentage of TL (based on 112 specimens measuring 11.8-27.3 cm TL): prebranchial length, 14.3-17.6; branchial length, 9.4-12.6; trunk length, 37.5-48.2; tail length, 20.9-31.7; eye length, 2.2-3.5; disc length, 6.5-11.7; trunk myomeres, 59-70. Adult dentition: marginals, 54-67; supraoral lamina, 3, rarely 4 unicuspid teeth, the median one smaller than the lateral ones; infraoral lamina, 5-6 unicuspid teeth; 4 endolaterals on each side; endolateral formula, typically 2-3-3-2; 2 rows of anterials; first row of anterials, 3 unicuspid teeth; exolaterals absent; 1 row of posterials, 14-21 teeth, 2-3 lateralmost on each side bicuspid and the internal ones unicuspid; transverse lingual lamina, 13-20 unicuspid teeth, the median one slightly enlarged; longitudinal lingual laminae parentheses-shaped and each with 17-27 unicuspid teeth. Velar tentacles in adults, 11-15 with wings. Adult body coloration (preserved), uniformly dark, almost black; lateral line neuromasts darkly pigmented; extent of caudal fin pigmentation, 75% or more; caudal fin shape, spade-like; oral fimbriae, 117; oral papillae, 17.
Body shape (shape guide): eel-like.

Biología     Glosario (por ej. epibenthic)

Mature individuals spawn on shallow gravel bars in freshwater lakes or the mouths of creeks flowing into lakes. Ammocoetes larvae occur in silt, mud, or sand in quiet water (Ref. 5723). Ammocoetes are found in inlet streams within 100 m of two lakes in Vancouver Island, British Columbia. Ammocoetes and recently metamorphosed individuals are mostly found along the edges of lakes. Adult life span believed to be at least 2 years. Adults parasitic on fishes (Oncorhynchus clarkia and O. kisutch) in freshwater lakes throughout the year. Wounds produced known to penetrate deeply into the musculature or even reach the body cavity of hosts. Up to three adults have been recorded attached to a host. Adults are known experimentally to be able to survive in salt water, but apparently remain in fresh water despite the absence of barriers preventing access to the sea. Adults in spawning readiness collected from shallow gravel bars between 1 June and 23 August. Between 50 and 80% of fishes, mostly salmonids, in Lake Cowichan and Mesachie Lake show evidence of attacks from this lamprey, and based on the severity of the wounds inflicted, an estimated 15% of these attacks would probably result in the death of the host (Ref. 89241).

Ciclo vital y comportamiento de apareamiento Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva

Semelparous (Ref. 89241).

Referencia principal Suba sus referencias | Referencias | Coordinador | Colaboradores

Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723)

Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))

  Endangered (EN) (B1ab(iii)+2ab(iii)); Date assessed: 22 July 2015

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Amenaza para el ser humano

  Harmless





Usos humanos

Pesquerías: sin interés
FAO - Publication: search | FishSource |

Más información

Ecología Trófica
Alimentos (presas)
Composición de la dieta
consumo de alimento
Raciones de comida
Despredadores
Ecología
Ecología
Dinámica de la población
Coeficiente del crecimiento para
Edades / tallas máximas
Longitud-peso rel.
Longitud-longitud rel.
Longitud-frecuencias
Conversión de masas
Reclutamiento
Abundancia
Ciclo de vida
Reproducción
Madurez
Madurez/Gills rel.
Fecundidad
Puesta
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Huevos
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Distribución
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Pigmentos visuales
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Toxicidad (CL50)
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heritabilidad
Diversidad genética
Relacionados con el ser humano
Sistemas de acuicultura
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Sellos, monedas, varios
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Fuentes de Internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: Género, Especie | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Árbol de la vida | Wikipedia: Go, búsqueda | World Records Freshwater Fishing | Expediente Zoológico

Estimaciones basadas en modelos

Índice de diversidad filogenética
(Referencia 82804)
PD50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight a=0.00129 (0.00059 - 0.00283), b=2.98 (2.79 - 3.17), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Nivel trófico
(Referencia 69278)
4.1   ±0.7 se; based on size and trophs of closest relatives
Resiliencia
(Referencia 120179)
Bajo, población duplicada en un tiempo mínimo de 4.5-14 años (Semelparous species, assuming tm (= tmax) > 4).
Vulnerabilidad pesquera
(Ref. 59153)
Low vulnerability (14 of 100). 🛈