Salmo dentex
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''Salmo dentex'' is a variety of
trout Trout are species of freshwater fish belonging to the genera '' Oncorhynchus'', '' Salmo'' and '' Salvelinus'', all of the subfamily Salmoninae of the family Salmonidae. The word ''trout'' is also used as part of the name of some non-salm ...
, a freshwater fish in the family
Salmonidae Salmonidae is a family of ray-finned fish that constitutes the only currently extant family in the order Salmoniformes . It includes salmon (both Atlantic and Pacific species), trout (both ocean-going and landlocked), chars, freshwater whitefis ...
, found in the western
Balkans The Balkans ( ), also known as the Balkan Peninsula, is a geographical area in southeastern Europe with various geographical and historical definitions. The region takes its name from the Balkan Mountains that stretch throughout the who ...
. Until recently the identity, biological distinctness and species status of the dentex trout were not properly clarified, but genetic data now suggest it is not a monophyletic unit that could be distinguished from other salmonids as a separate species. ''Salmo dentex'' has been reported to inhabit the Neretva river and
Hutovo Blato Hutovo Blato ( sr-cyrl, Хутово Блато) is a nature reserve and bird reserve located in Bosnia and Herzegovina. It is primarily composed of marshlands that were created by the underground aquifer system of the Krupa River. It is fed from ...
wetlands in
Bosnia and Herzegovina Bosnia and Herzegovina ( sh, / , ), abbreviated BiH () or B&H, sometimes called Bosnia–Herzegovina and often known informally as Bosnia, is a country at the crossroads of south and southeast Europe, located in the Balkans. Bosnia and H ...
, and is also found in
Albania Albania ( ; sq, Shqipëri or ), or , also or . officially the Republic of Albania ( sq, Republika e Shqipërisë), is a country in Southeastern Europe. It is located on the Adriatic and Ionian Seas within the Mediterranean Sea and shares ...
and
Montenegro ) , image_map = Europe-Montenegro.svg , map_caption = , image_map2 = , capital = Podgorica , coordinates = , largest_city = capital , official_languages = M ...
in
Lake Skadar Lake Skadar ( sh-Cyrl-Latn, Скадарско језеро, Skadarsko jezero, ; sq, Liqeni i Shkodrës, ) also called Lake Scutari, Lake Shkodër and Lake Shkodra lies on the border of Albania and Montenegro, and is the largest lake in Southern ...
and its tributaries. It is reported that ''S. dentex'' is extinct from Croatian rivers,
Cetina Cetina () is a river in southern Croatia. It has a length of and its basin covers an area of . From its source, Cetina descends from an elevation of above sea level to the Adriatic Sea. It is the most water-rich river in Dalmatia.Naklada Naprijed ...
and Krka, but has recently bee reported by anglers from the
Cetina Cetina () is a river in southern Croatia. It has a length of and its basin covers an area of . From its source, Cetina descends from an elevation of above sea level to the Adriatic Sea. It is the most water-rich river in Dalmatia.Naklada Naprijed ...
river in Croatia. Some reports indicate its presence in the rivers of Livanjsko field in
Bosnia and Herzegovina Bosnia and Herzegovina ( sh, / , ), abbreviated BiH () or B&H, sometimes called Bosnia–Herzegovina and often known informally as Bosnia, is a country at the crossroads of south and southeast Europe, located in the Balkans. Bosnia and H ...
and in river
Alfeios The Alfeiós or Alpheios ( el, Αλφειός, grc, Ἀλφειός, Latin Alpheus) is the main stream of the Alpheios Valley drainage system, a dendritic type, originating on the north slopes of Mount Taygetus, located in the center of the Pelo ...
in Greece. The status of ''S. dentex'', locally known as the zubatak, long remained unclear due to lack of samples for detailed analyses, hybridisation with other
trout Trout are species of freshwater fish belonging to the genera '' Oncorhynchus'', '' Salmo'' and '' Salvelinus'', all of the subfamily Salmoninae of the family Salmonidae. The word ''trout'' is also used as part of the name of some non-salm ...
lineages and diverse and multiple designations of the same trout in different areas. One of the inhabited areas, the
Hutovo Blato Hutovo Blato ( sr-cyrl, Хутово Блато) is a nature reserve and bird reserve located in Bosnia and Herzegovina. It is primarily composed of marshlands that were created by the underground aquifer system of the Krupa River. It is fed from ...
wetlands, is situated 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. Recently the genetic structure of ''S. dentex'' and its relations to other co-existing salmonids in the Neretva and Skadar river systems have been studied using mitochondrial DNA, microsatellite and 21 other nuclear DNA loci. Genetic analyses showed that the Neretva ''S. dentex'' ("zubatak") and the co-existing marble trout (''S. marmoratus'') formed a genetically unified cluster, while Skadar ''S. dentex'' ("strun") was "genetically distinct from ''S. marmoratus'' in the same river system and indistinct from local brown trout (''S. trutta'')". Thus the Neretva and Skadar ''S. dentex'' are not closely related but rather "''S. dentex'' sa particular life history form of ''S. marmoratus'' in the Neretva basin and of ''S. trutta'' in the Skadar basin". "These results clearly demonstrate that ''S. dentex'' does not represent a monophyletic lineage and should not be considered a distinct species."


References

{{Taxonbar, from=Q140731
dentex ''Dentex'' is a genus of fish in the family Sparidae. Species There are currently 14 recognized species in this genus: * '' Dentex abei'' Iwatsuki, Akazaki & Taniguchi, 2007 (Yellowfin seabream) * ''Dentex angolensis'' Poll & Maul, 1953 (Ango ...
Fish described in 1852 Fauna of Albania Fish of Bosnia and Herzegovina Fauna of Croatia Fauna of Greece Freshwater fish of Europe Taxonomy articles created by Polbot Endemic fish of the Neretva basin Endemic fauna of Bosnia and Herzegovina Species endangered by river-damming