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21. lipnja 2017.

A new brook lamprey - Šoljan's brook lamprey Lampetra soljani

By the successful cooperation of the Croatian (Pero Tutman and Jakov Dulčić from the Institute of Oceanography and Fisheries in Split, and Branko Glamuzina from the  University of Dubrovnik) and German scientists (Jörg Freyhof – Leibniz Institute of Freshwater Ecology and Inland Fisheries from Berlin and Matthias Geiger – Zoological Research Museum Alexander Koenig, Leibniz Institute for Animal Biodiversity from Bonn) described a new freshwater species of fish - the Šoljan brook lamprey – Lampetra soljani from the lower Neretva River in the Croatia and Bosnia and Herzegovina. This species is distributed only in the lower Neretva River and its tributaries in Croatia and Bosnia and Herzegovina; from the mouth to some 35 km upstream. In addition, it is considered that specimens from the river system of Skadar Lake also belong to this species.
The new species is named in honor of esteemed academician, biologists prof. dr. sc. Tonko Šoljan (Hvar, Croatia, 1907 – Sarajevo, Bosnia and Herzegovina, 1980) honorable scientist and lecturer in appreciation of his contribution to the knowledge and development of ichthyology in Croatia and Bosnia and Herzegovina. He was one of the founders of modern ichthyology in Croatia and Bosnia and Herzegovina, founder of the Vertebrata cathedra on Faculty of Science and Mathematics, University of Sarajevo, Bosnia and Herzegovina, Director of the Institute of Oceanography and Fisheries in Split, Croatia (1947-1955) and chairman of the I. European Ichthyological Congress (EIC) held 1973 in Sarajevo, Bosnia and Herzegovina. Author of famous book „Fishes of the Adriatic Sea“ and member of Croatian Academy of Science and Arts and  Academy of Sciences and Arts of Bosnia and Herzegovina from 1967.

Larvae

Larvae


Biology: Non-parasitic, freshwater species of lamprey. Adult do not feed, larvae feeds with benthic algae and detritus. The ammocoetes period lasts 4-5 years, metamorphosis from one month to two, and the adult phase is six to eight months. Spawns from January to June, but mostly until March. The first metamorphosed individuals can be found in the second part of November.

Adult

Adult
 

Oral discDescription: In the oral disc beneath the teeth of the suction plate there are still small back teeth that are often hidden and sometimes absent. Adult specimens are usually silvery, and at the time of mating their backs become bluish. Adult individuals grow up to 20 cm, and larvae a little more, up to 21.6 cm.
Habitat: Šoljan's brook lamprey inhabits clear, cold section of the rivers, in areas where the bottom is muddy-sandy and rocky-gravel.

Habitat: Šoljan's brook lamprey inhabits clear, cold section of the rivers, in areas where the bottom is muddy-sandy and rocky-gravel.

Station Institute Station Institute
16.12.2017 13:55
Air temperature
13.2
°C
Wind speed
0.4
m/s
Wind direction
175
° north
Air pressure
1005.93
hPa
Relative Humidity
63
%
Rain accumulation
0
mm/h
Solar radiation
295
W/m2