Overview

Comprehensive Description

Biology

Inhabits lakes and large rivers. Spawns on gravel bottom. In Lake Skadar basin, overwinters in deep parts of lake and moves to main tributaries in summer (Ref. 59043). Threatened due to habitat destruction and pollution (Ref. 26100).
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

This fish is known from the Adriatic basin, from Krka to Aoos drainages (Croatia, Bosnia-Herzegovina, Montenegro, Albania, Greece, Kosovo, Macedonia); possibly present in Alfios (Peloponnese, Greece).
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

Southern Europe: Adriatic basin.
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

Europe: Croatia, Bosnia-Herzegovina, Montenegro, Albania, Greece, Kosovo, Macedonia (Adriatic basin from Krka to Aoos drainages); possibly present in Peloponnese, Greece (Alfios).
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

Physical Description

Size

Max. size

62.0 cm SL (male/unsexed; (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 all its congeners in Balkan Peninsula by having the following combination of characters: preanal length 77-80% SL; predorsal length 47-50% SL; interorbital distance 20-25% HL; head and body with small dark dots, especially in upper part; and dark red spots of different sizes, on whole flank, circled by bright pale rim (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
The species occurs in lakes and large rivers. It spawns on gravel bottom.

Biology
A resident in lacustrine ecotypes, in the Lake Skadar basin the species overwinters in deep parts of lake, moving to main tributaries in summer.

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

Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
DD
Data Deficient

Red List Criteria

Version
3.1

Year Assessed
2011

Assessor/s
Freyhof, J.

Reviewer/s
Kottelat, M. & Smith, K.

Contributor/s
Kottelat, M.

Justification
Very little information exists for this species. It is suspected that it hybridises with introduced trout species, but more information is needed to know the impacts of this. Illegal fishing is also a potential threat as the species is a large fish and most likely targeted. The taxonomy of the species also needs clarification before a full extinction risk assessment can be made.

For the European Union 27 region, this species is also assessed as Data Deficient (DD), with the same rationale as above.

History
  • 2008
    Data Deficient
    (IUCN 2008)
  • 2008
    Data Deficient
  • 1996
    Data Deficient
    (Baillie and Groombridge 1996)
  • 1996
    Data Deficient
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 is available on population size or trends.

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
Hybridisation with introduced trouts and illegal fishing are potential threats.
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)
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 available. More information is needed for this species, in particular on its threats, and it is in need of taxonomic clarification.
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

Relevance to Humans and Ecosystems

Benefits

Importance

fisheries: commercial; gamefish: yes
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

Wikipedia

Salmo dentex

Salmo dentex is a variety of trout, a freshwater fish in the Salmonidae family, found in the western Balkans.[1][2][3] The identity, biological dinstinctness and species status of the dentex trout are however not properly clarified.[4] Salmo dentex is reported to inhabit the Neretva river and Hutovo Blato wetlands in Bosnia and Herzegovina,[5] and is also found in Albania and Montenegro in Lake Skadar and its tributaries.[6] It is reported that S. dentex is extinct from Croatian rivers, Cetina and Krka,[7] but has recently bee reported by anglers from the Cetina river in Croatia. Some reports indicate its presence in the rivers of Livanjsko field in Bosnia and Herzegovina[8] and in river Alfeios in Greece.[9]

Salmo dentex, locally known as the zubatak, is poorly studied and its status has remained unclear due to lack of samples for detailed analyses, hybridisation with other trout lineages and diverse and multiple designations of the same trout in different areas. One of the inhabited areas, the Hutovo Blato wetlands, are situated in North West of the Neretva river estuary in southern part of Bosnia and Herzegovina. This is an atypical type of wetland, characterized by several shallow lakes and channels filled with clear and cold water (around 13°C whole year) creating conditions suitable also for salmonids.[4]

Recent research suggests that S. dentex is phenotypically distinct yet genetically indistinct from marble trout of the lower Neretva.[10]

References[edit]

  1. ^ Freyhof, J. & Kottelat, M. 2008. Salmo dentex In: IUCN Red List of Threatened Species. Version 2010.1. Downloaded on 21 May 2010
  2. ^ J. J., Heckel (1851). "Bericht einer ichthyologischen Reise. II. Beiträge zu den Gattungen Salmo, Fario, Salar, Coregonus, Chondrostoma und Telestes". Sitzungsber. Akad. Wiss. Wien. pp. 347–390. 
  3. ^ Glamuzina, Branko; V. Bartulović (2006). "Some characteristics of the Endemic Dentex Trout, Salmo dentex (Heckel, 1851) from the Neretva River, Bosnia–Herzegovina" (PDF). Ribarstvo 64 (2): 59–64. Retrieved 2009-07-17. 
  4. ^ a b "Salmo dentex - Yet another Balkan salmonid". Balkan Trout Restoration Group. Retrieved 2009-03-10. 
  5. ^ V., Čurčić (1938). "Neretva i njezine pastrve (Salmonidae)". Štamparija Risto V. Savić, Sarajevo. p. 89. 
  6. ^ V., Sorić (1990). "Salmonids in the Ohrid–Drim–Skadar system. Acta Societatis Zoologicae Bohemoslovacaei". pp. 54, 305–319. 
  7. ^ M., Mrakovčić; Mišetić S.; Povž M. (1995). "Status of freshwater fish in Croatian Adriatic river systems. Biological Conservation". pp. 72, 179–185. 
  8. ^ T., Vuković; Ivanović B. (1971). "Freshwater fish of Yugoslavia". Zemaljski muzej BiH, Sarajevo. p. 268. 
  9. ^ B., Delling (2003). "Species diversity and phylogeny of Salmo with emphasis on Southern Trouts (Teleostei, Salmonidae)". Doctoral dissertation (University of Stockholm). 
  10. ^ http://balkantrout.blogspot.com/2009/07/another-myth-busted.html
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!