Salvelinus malma, Dolly varden : fisheries, gamefish

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Salvelinus malma (Walbaum, 1792)

Dolly varden
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Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Salvelinus malma   AquaMaps   Data sources: GBIF OBIS
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Classificatie / Names Populaire namen | Synoniemen | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (Straalvinnigen) > Salmoniformes (Salmons) > Salmonidae (Salmonids) > Salmoninae
Etymology: Salvelinus: Old name for char; it is the same root of german "saibling" = little salmon (Ref. 45335);  malma: malma which is the the common name for this species in Kamchatka (Ref. 1998).  More on author: Walbaum.

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

; marien; zoetwater; brakwater benthopelagisch; anadroom (Ref. 51243); diepteverspreiding 0 - 200 m (Ref. 50550).   Temperate; 4°C - 18°C (Ref. 13614); 75°N - 38°N, 127°E - 123°W

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North America: Arctic and Pacific drainages from lower Mackenzie River in Northwest Territories, Canada to Puget Sound and Quinault River in Washington, USA (Ref. 86798). Northwest Pacific: Korea to Bering Sea (Ref. 2850).

Length at first maturity / Size / Gewicht / Leeftijd

Maturity: Lm 23.5, range 12 - 21 cm
Max length : 127 cm TL mannelijk/geslacht niet bekend; (Ref. 27436); common length : 37.5 cm TL mannelijk/geslacht niet bekend; (Ref. 12193); Maximaal gepubliceerd gewicht: 18.3 kg (Ref. 27436)

Korte beschrijving Morfologie | Morfometrie

Dorsale stekels (totaal): 0; Dorsale zachte stralen (totaal): 10-16; Anale stekels 0; Anale zachte stralen: 10 - 15. Body elongate, somewhat rounded, greatest body depth below dorsal fin. Head rather long. Pelvic fins with free-tipped fleshy appendage above its insertion. Caudal emarginate (Ref. 27547). Color varies with size, locality and habitat. Sea-run adults with back, upper head, and upper sides dark blue, the sides silvery to white. In freshwater populations, the back and upper sides are olive green to brown, the sides a paler color but bright red in spawning fish and at all times in some areas of Alaska, the underside white to dusky. The dorsal surface are marked with yellow, orange or red spots, more numerous and those along the lateral line smaller, than in arctic char. Spawning males, especially of anadromous populations, turn red on the ventral surface and tip of snout. The lower jaw, operculum and parts of the head are black, the back and sides turn olive-brown. The spots become more vivid orange-red, the pectoral and anal fins red-black with a white leading edge, the snout thickens and the lower jaw turns up. Females change less.

Biologie     Verklarende woordenlijst (b.v. epibenthic)

Occurs in deep runs and pools of creeks and small to large rivers; also in lakes and the sea (Ref. 5723, 86798). Lives in very clean mountain streams (Ref. 12218). Nerito-pelagic (Ref. 58426). Typically anadromous, but many populations are landlocked. Anadromous fish may spend 2-3 years at sea, evidently near shore, migrate upstream usually in fall, and spawn during spring (Ref. 86798). Young remain in streams for 3-4 years and feed on insects, leeches, snails, and salmon eggs (Ref. 1998) before entering brackish and salt water to feed on insects, fishes, and other invertebrates. Utilized fresh and eaten fried, broiled, and baked (Ref. 9988).

Life cycle and mating behavior Geslachtsrijpheid | Voortplanting | Kuitschieten | Eieren | Fecundity | Larven

Adults from the sea and lakes enter rivers to spawn. A female selects a nest site and begins to dig a redd while the male continues to court her and drive away intruding males. Upon completion of the redd, both drop into it and release eggs and sperm. This may be repeated several times before the eggs are covered by the female who swims along the edge of the of the redd, sweeping small pebbles and other particles into it with her tail and anal fin. Later, she may dig again and further cover the eggs while preparing a new nest (Ref. 27547). Breeding is an annual event for southern populations; occurring every second or third year in the Arctic (Ref. 27547). Males and females reportedly die after spawning (Ref. 12218).

Voornaamste referentie Upload your references | Referenties | Coördinator | Medewerkers

Page, L.M. and B.M. Burr, 2011. A field guide to freshwater fishes of North America north of Mexico. Boston : Houghton Mifflin Harcourt, 663p. (Ref. 86798)

Status op de Rode Lijst van het IUCN (Ref. 120744)


CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaarlijk voor mensen

  Harmless





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Meer informatie

Populaire namen
Synoniemen
Metabolisme
Predators
Ecotoxicologie
Voortplanting
Geslachtsrijpheid
Kuitschieten
Spawning aggregation
Fecundity
Eieren
Ontwikkeling van de eieren
Leeftijd/Grootte
Groei
Lengte-gewicht parameters
Lengte-lengte parameters
Lengtefrequenties
Morfometrie
Morfologie
Larven
Populatiedynamica van de larven
recrutering
Abundantie
Referenties
Aquacultuur
Aquacultuurprofiel
Kweeklijnen
Genetica
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Erfelijkheid
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Mass conversion
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Internet-bronnen

Alien/Invasive Species database | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Bekijk FishWatcher gegevens | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genoom, nucleotide) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Tree of Life | Wikipedia(ga naar, zoek) | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 0.2 - 8, mean 2.2 (based on 653 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00537 (0.00351 - 0.00823), b=3.03 (2.90 - 3.16), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic Level (Ref. 69278):  4.4   ±0.6 se; Based on diet studies.
Weerstandsvermogen (Ref. 120179):  laag, minimale populatieverdubbelingstijd 4,5-14 jaar (tm=3-5).
Prior r = 0.24, 95% CL = 0.15 - 0.39, Based on 1 stock assessment.
Kwetsbaarheid (Ref. 59153):  High to very high vulnerability (70 of 100) .
Prijsklasse (Ref. 80766):   Very high.