Plecoglossus altivelis, Ayu sweetfish : fisheries, aquaculture, gamefish

Plecoglossus altivelis (Temminck & Schlegel, 1846)

Ayu sweetfish
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Plecoglossus altivelis   AquaMaps   Data sources: GBIF OBIS
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Image of Plecoglossus altivelis (Ayu sweetfish)
Plecoglossus altivelis
Foto de Islam, Md. S.

Clasificación / Nombres Nombres comunes | Sinónimos | Catalog of Fishes(Género, Especie) | ITIS | CoL | WoRMS | Cloffa

> Osmeriformes (Freshwater smelts) > Plecoglossidae (Ayu fish)
Etymology: Plecoglossus: Greek, pleko, plekein = to fold + Greek, glossa = tongue (Ref. 45335).
More on authors: Temminck & Schlegel.

Taxonomic Remarks
All subspecies of Plecoglossus altivelis (Temminck & Schlegel, 1846) are synonymised under the species in Eschmeyer (CofF ver. Jul. 2010: Ref. 84883). Please send references, or more studies are needed.

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

marino; agua dulce; salobre demersal; anfidromo (Ref. 138124); rango de profundidad 10 - ? m. Subtropical; 44°N - 23°N

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

Northwest Pacific: western Hokkaido in Japan southward to the Korean Peninsula, Taiwan and China.

Longitud en la primera madurez / Tamaño / Peso / Edad

Madurez: Lm 27.5, range 30 - 40 cm
Max length : 70.0 cm TL macho / no sexado; (Ref. 12218); common length : 15.0 cm SL macho / no sexado; (Ref. 35840); edad máxima reportada: 3.00 años (Ref. 12218)

Descripción breve Claves de identificación | Morfología | Morfometría

Espinas dorsales (total) : 0; Radios blandos dorsales (total) : 10 - 11; Radios blandos anales: 14 - 15; Vértebra: 60 - 63. Pyloric caeca 350-400.
Body shape (shape guide): elongated.

Biología     Glosario (por ej. epibenthic)

Typical amphidromous fish; appears in near shore from late autumn to spring (Ref. 11230). Found in lakes and rivers, preferring clean river water and can be found the entire river long, from the head to the mouth (Ref. 12218). Ascends the river during March when the temperature is around 10°C (Ref. 12218). Adults spawn in the spring, in the lower reaches of rivers. After spawning, some adults die while others return to the sea. Larvae enter the sea immediately after hatching and remain there during winter, feeding on plankton. In springtime, the young (5-7 cm TL) move upstream to the middle reaches of rivers to feed on algae. Fish (about 6-9 cm) start schooling at the river mouth and are insectivores and eat algae off small pebbles (Ref. 12218); this is assisted by small leaf-like teeth which are loosely attached to the jaw with two ligaments (Ref. 45181). Those that are ready to spawn (about 20 cm TL) move downstream to the lower reaches of the river. Spawning adults from the sea migrate upstream to the lower reaches as well. Some fish spawn two or three years in succession, others only once (Ref. 9987 & 559). River forms live usually only one year whereas lake forms can live two or three years (Ref. 12218). Reaches maturity at 30-40 cm (Ref. 12218). Highly esteemed food fish. Marketed fresh and consumed fresh, fried and broiled (Ref. 9987).

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

During spawning some fish go up the river and some fish spawn on the river shoreline above pebbles. Spawns at night and excavates a 10cm (diameter or depth?) pit. Eggs are around 1 mm in size and adhere to the sand or pebbles for 14 to 20 days before hatching. This fish is semelparous and releases eggs many times over a short period each time releasing ~10,000 eggs. Sometimes females that want to spawn but cannot, save their strength, and go to a deep stagnant pool. These females wait until spring before going up the river with young fish. After hatching, the larvae are 6 mm and flow with the water current eating plankton. Juvenile fish will come again to the river in spring. These live in schools. When schools of Plecoglossus altivelis return to their river they guard their territory and eat food (Ref. 12218). Reproductive mode varies between semelparity and iteroparity. Large females spawn once, while smaller females spawn twice during a two-week interval (Ref. 76896).

Referencia principal Suba sus referencias | Referencias | Coordinador | Colaboradores

Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984. The fishes of the Japanese Archipelago. Vol. 1. Tokai University Press, Tokyo, Japan. 437 p. (text). (Ref. 559)

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

  Data deficient (DD) ; Date assessed: 03 September 2010

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Amenaza para el ser humano

  Harmless





Usos humanos

Pesquerías: muy comercial; Acuicultura: comercial; pesca deportiva: si
FAO - Sistemas de acuicultura: production searchpesquerías: perfil de la especie, landings search; Publication: search | FishSource | Sea Around Us

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
Agregaciones de desove
Huevos
Desarrollo de los huevos
Larva
Dinámica larvaria
Distribución
Territorios
Áreas FAO
Ecosistemas
Ocurrencias, apariciones
Introducciones
BRUVS - Vídeos
Anatomía
Superficie branquial
Cerebro
Otolito
Fisiología
Composición corporal
Nutrientes
Consumo del oxígeno
Tipo de natación
Velocidad de natación
Pigmentos visuales
Sonido de peces
Enfermedades y parásitos
Toxicidad (CL50)
Genética
Genoma
Genética
Heterocigosidad
heritabilidad
Diversidad genética
Relacionados con el ser humano
Sistemas de acuicultura
Perfiles de acuicultura
Razas
Ciguatera cases
Sellos, monedas, varios
Divulgación
Colaboradores
Taxonomía
Nombres comunes
Sinónimos
Morfología
Morfometría
Imágenes
Referencias
Referencias

Herramientas

Libro electrónico | Guía de campo | Asistente para frecuencias de tallas | Herramienta de ciclo de vida | Mapa de puntos | Catch-MSY |

Informes especiales

Comprobar el mantenimiento del acuario | Buscar fichas sobre especies | Consulte las hojas informativas sobre acuicultura

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Página de resumen | Datos específicos | Nombres comunes | fotos

Fuentes de Internet

AFORO (otoliths) | Alien/Invasive Species database | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: Género, Especie | DiscoverLife | ECOTOX | FAO - Sistemas de acuicultura: production searchpesquerías: perfil de la especie, landings search; Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | Bases de datos nacionales | 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 = 1.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight a=0.00427 (0.00162 - 0.01121), b=3.07 (2.85 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Nivel trófico
(Referencia 69278) 		2.8   ±0.16 se; based on food items.
Resiliencia
(Referencia 120179) 		Alto, población duplicada en un tiempo mínimo inferior a 15 meses (tm=1; tmax=3; Fec=50,000-100,000).
Vulnerabilidad pesquera
(Ref. 59153) 		Low to moderate vulnerability (29 of 100). 🛈
Categoría de precios
(Ref. 80766) 		Unknown.
Nutrientes
(Ref. 124155) 		Calcium = 78 [36, 203] mg/100g; Iron = 1.19 [0.62, 2.98] mg/100g; Protein = 16.2 [13.8, 18.2] %; Omega3 = 0.445 [0.196, 1.234] g/100g; Selenium = 73.2 [35.2, 156.1] μg/100g; VitaminA = 4.44 [1.39, 14.45] μg/100g; Zinc = 0.804 [0.513, 1.253] mg/100g (wet weight);