Overview

Comprehensive Description

Biology

Inhabits large oligotrophic lakes. In Scotland, this species occurs usually in lakes inhabited by Salvelinus species on which it preys. Feeds on fishes and a variety of insects. In Scotland, preys on invertebrates until about 30 cm SL, then becomes piscivorous, feeding mostly on Salvelinus species. Spawns only in the larger and deeper tributaries (Ref. 59043).
  • Kottelat, M. and J. Freyhof 2007 Handbook of European freshwater fishes. Publications Kottelat, Cornol, Switzerland. 646 p. (Ref. 59043)
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Distribution

Range Description

British Isles: Loughs Melvin, Erne, Corrib and Mask (Ireland), several lakes of northern Scotland, apparently also Lakes Ullswater and Bassenthwaite (Cumbria) and Llyns Padarn and Peris (Wales).
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Europe: British Isles in Loughs Melvin, Erne, Corrib, and Mask (Ireland), Lochs Awe, Laggan and others (Scotland), apparently also Lakes Ullswater and Bassenthwaite (Cubmria) and Llyns Padarn and Peris (Wales).
  • Kottelat, M. and J. Freyhof 2007 Handbook of European freshwater fishes. Publications Kottelat, Cornol, Switzerland. 646 p. (Ref. 59043)
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

British Isles.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© FishWise Professional

Source: FishWise Professional

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Physical Description

Size

Max. size

80.0 cm SL (male/unsexed; (Ref. 59043)); max. reported age: 23 years (Ref. 59043)
  • Kottelat, M. and J. Freyhof 2007 Handbook of European freshwater fishes. Publications Kottelat, Cornol, Switzerland. 646 p. (Ref. 59043)
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Diagnostic Description

Distinguished from its congeners in British Isles by its unique body depth about 4.6-5.0 times in SL. Differs further by the combination of the following characters: body brown to silvery, black spots small (equal to or smaller than pupil), few or absent; large size; and maxilla reaching beyond posterior margin of eye (Ref. 59043).
  • Kottelat, M. and J. Freyhof 2007 Handbook of European freshwater fishes. Publications Kottelat, Cornol, Switzerland. 646 p. (Ref. 59043)
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
Habitat:
Large oligotrophic lakes; in Scotland usually only in lakes inhabited by Salvelinus species on which it preys. Spawns only in the larger and deeper tributaries.

Biology:
Lives up to 23 years. Spawns in November-December. Feeds on fishes and a variety of insects. In Scotland, feeds on invertebrates until about 300 mm SL, then switches to a fish diet, mostly Salvelinus species.

Systems
  • Freshwater
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Environment

demersal; freshwater
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Trophic Strategy

Feeds on fishes and a variety of insects. In Scotland, feeds on invertebrates until about 30 cm SL, then switches to fish diet, mostly Salvelinus species. (Ref. 59043).
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Partner Web Site: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
DD
Data Deficient

Red List Criteria

Version
3.1

Year Assessed
2008

Assessor/s
Freyhof, J. & Kottelat, M.

Reviewer/s
Bogutskaya, N., & Smith, K. (IUCN Freshwater Biodiversity Unit)

Contributor/s

Justification
Several populations of large, piscivorous trouts from Ireland, northern Scotland, Cumbria and Wales are called ferox trouts. They are recognized as a distinct species on the basis of their existence in sympatry with genetically distinct S. trutta in several lakes, but it remains to be demonstrated whether all ferox trouts are conspecific. Some of these individuals or populations might be old, large, piscivorous, lacustrine S. trutta. More information is needed on the distribution, status and population and threats of S. ferox in these lakes.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Population

Population
No information

Population Trend
Unknown
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Threats

Major Threats
Unknown
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Data deficient (DD)
  • IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006.
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Management

Conservation Actions

Conservation Actions
No information.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Wikipedia

Ferox trout

Ferox trout (Salmo ferox) is a variety of trout found in oligotrophic lakes of Ireland, England, Scotland and Wales. Ferox trout is a traditional name for large, piscivorous trout, which in Scotland feed largely on Arctic char. It has been argued to be a distinct species, being reproductively isolated from "normal" brown trout (Salmo trutta) of the same lakes, particularly in Ireland.[1] However it is uncertain whether the ferox of different lakes all are of a single origin.[1] This fish grows to a length of 80 centimetres (31 in) SL.[2]

Scottish authorities currently do not regard Scottish ferox to be taxonomically distinct from Salmo trutta.[3]

References[edit]

  1. ^ a b "Salmo ferox". IUCN Red List of Threatened Species. Version 2011.1. International Union for Conservation of Nature. 2008. 
  2. ^ Froese, Rainer and Pauly, Daniel, eds. (2012). "Salmo ferox" in FishBase. February 2012 version.
  3. ^ Ferox trout The Scottish Government.
Creative Commons Attribution Share Alike 3.0 (CC BY-SA 3.0)

Source: Wikipedia

Unreviewed

Article rating from 0 people

Default rating: 2.5 of 5

Disclaimer

EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

To request an improvement, please leave a comment on the page. Thank you!