Overview

Comprehensive Description

Biology

Inhabits Lake Posta Fibreno, an elongated karstic lake with underwater springs and caves, 1.1km long, 0.1-0.3 km wide, 0.29 square kilometer, 285 m above sea level, 15 m deep (average depth 2.5 m), about 10°C throughout the year, and clear and well oxygenated water. Sometimes enters lake tributaries. Spawns close to underwater springs in December-January. The lake is very vulnerable to fish introduction or accidental pollution (Ref. 59043).
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Distribution

Range Description

Italy: Lake Posta Fibreno and tributaries.
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Europe: Lake Posta Fibreno and tributaries in Italy.
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Lake Posta Fibreno and tributaries, Italy.
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Physical Description

Size

Max. size

19.5 cm SL (male/unsexed; (Ref. 59043))
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Diagnostic Description

Distinguished from all congeners in Italy by having the following unique characters: 7-11 large parr-marks in adults; and 15-20 large roundish, ocellated spots on flank, reddish or dark brown (ocellus about eye-size) (Ref. 59043).
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
Habitat:
Lake Posta Fibreno is an elongated karstic lake with underwater springs and caves, 1.1 km long, 0.1-0.3 km wide, 0.29 km², 289 m above sea level, 15 m deep (average depth 2.5 m), about 10°C year-round and clear and well oxygenated water. Spawns close to underwater springs.

Biology:
Lacustrine, sometimes entering lake tributaries. Spawns in December-January (local S. cettii population in February-March).

Systems
  • Freshwater
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Environment

benthopelagic; freshwater
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
VU
Vulnerable

Red List Criteria
D2

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
The species' entire range (Lake Posta Fibreno, 0.29 km² and tributaries) is included in Lago di Posta Fibreno Nature Reserve. However, there is still a potential threat of fish introduction or accidental pollution.
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Population

Population
No information.

Population Trend
Unknown
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Threats

Major Threats
Potential threats of introduced species and pollution.
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Vulnerable (VU) (D2)
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Management

Conservation Actions

Conservation Actions
The species entire range (Lake Posta Fibreno, 0.29 km² and tributaries) is included in Lago di Posta Fibreno Nature Reserve.
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Relevance to Humans and Ecosystems

Benefits

Importance

gamefish: yes
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Wikipedia

Salmo fibreni

Salmo fibreni, or the Fibreno trout, is a freshwater salmonid fish, endemic to Lago di Posta Fibreno in central Italy.[1][2]

The size of Lago di Posta Fibreno is only 0.29 km². It is a narrow lake 1.1 km long, 100–300 m wide, situated 289 m above sea level. The lake is in a karstic terrain and rich in underwater springs. The Fibreno trout breeds close to these springs in mid-winter. It is sympatric with the more widespread Salmo cettii (Mediterranean trout), and separated from it by the breeding time: S. cettii spawns in early spring.[1]

References[edit]

  1. ^ a b c Freyhof, J. & Kottelat, M. (2008). "Salmo fibreni". IUCN Red List of Threatened Species. Version 2011.1. International Union for Conservation of Nature. Retrieved 13 July 2011. 
  2. ^ Froese, Rainer and Pauly, Daniel, eds. (2006). "Salmo fibreni" in FishBase. April 2006 version.
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