AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Salvelinus namaycush [WoRMS] | |
Authority | (Walbaum, 1792) | |
Family | Salmonidae | |
Order | Salmoniformes | |
Class | Actinopterygii | |
Phylum | Chordata | |
Synonym (?) | ||
Sub-species level (?) | Not entered |
Native origin (?) | Not entered |
Life form / Life stage (?) |
References (not structured): Fuller P (2011) Salvelinus namaycush. USGS Nonindigenous Aquatic Species Database, Gainesville, FL. http://nas.er.usgs.gov/queries/FactSheet.aspx?speciesID=942 RevisionDate: Accesed 16 September 2011 Comments: Species inhabit almost benthic-like environments. Within the water column, S. namaycush is found at both deep and shallow depths depending on the location and time of year as well as stage of development. |
Sociability / Life stage (?) |
References (not structured): Fuller P (2011) Salvelinus namaycush. USGS Nonindigenous Aquatic Species Database, Gainesville, FL. http://nas.er.usgs.gov/queries/FactSheet.aspx?speciesID=942 RevisionDate: Accesed 16 September 2011 |
Reproductive frequency (?) | Iteroparous References (not structured): Fuller P (2011) Salvelinus namaycush. USGS Nonindigenous Aquatic Species Database, Gainesville, FL. http://nas.er.usgs.gov/queries/FactSheet.aspx?speciesID=942 RevisionDate: Accesed 16 September 2011 |
Reproductive type (?) | Sexual |
Developmental trait (?) | Spawning References: Fuller P (2011) Salvelinus namaycush. USGS Nonindigenous Aquatic Species Database, Gainesville, FL. http://nas.er.usgs.gov/queries/FactSheet.aspx?speciesID=942 RevisionDate: Accesed 16 September 2011 Comments: Like many other aquatic species, Salvelinus namaycush fertilizes eggs externally, but unlike other species do not construct a 'redd' or nest. The act of spawning occurs predominately at night; where males will approach a female, press against her sides and quiver. During this act the females' eggs fall into rocky outcroppings beneath her after being fertilized by the male. This act of courting is repeated until all the eggs of the female are released. Occasionally, up to seven males and three females may interact together in a single spawning act. |
Characteristic feeding method / Life stage (?) |
References (not structured): Fuller P (2011) Salvelinus namaycush. USGS Nonindigenous Aquatic Species Database, Gainesville, FL. http://nas.er.usgs.gov/queries/FactSheet.aspx?speciesID=942 RevisionDate: Accesed 16 September 2011 Comments: Feeding on organisms from freshwater sponges to plankton, Salvelinus namaycush predates on a variety of underwater life. Organisms such as crustaceans, insects, fish and even small mammals are part of the diet of S. namaycush. When in the juvenile state, S. namaycush feeds almost exclusively on invertebrates. |
Mobility / Life stage (?) |
References (not structured): Fuller P (2011) Salvelinus namaycush. USGS Nonindigenous Aquatic Species Database, Gainesville, FL. http://nas.er.usgs.gov/queries/FactSheet.aspx?speciesID=942 RevisionDate: Accesed 16 September 2011 |
Salinity tolerance range (?) | Not entered |
Habitat modifying ability potential (?) | Not entered |
Toxicity / Life stage (?) | Not entered |
Bioaccumulation association (?) | Not entered |
Known human health impact? | Not entered |
Known economic impact? | Not entered |
Known measurable environmental impact? | Not entered |
Included in the Target Species list? | Not entered |
Association with vessel vectors (?) | Not entered |
Molecular information | Not entered |
Last update by | Henn Ojaveer, 2015-06-05 |