Length-weight relationships (LWRs) are useful for calculating weight based on measurements of length. Here we provide LWRs 17 species fish from the rivers Vltava and Elbe in Czech Republic, Central Europe. The samples were collected by electrofishing May 2016 to August 2019. There far fewer riverine than lotic fish. All significant with r2 values ranging 0.99 European barbel (Barbus barbus) 0.9...

M A N Y studies have been made on autotomy and regeneration of the tail in lizards; for example those by Woodland (1920) and Hughes & New (1959) on geckos, by Slotopolsky (1922) on Lacerta, by Barber (1944) and Kamrin & Singer (1955) on Anolis, and by Simpson (1964) on Lygosoma. This work is concerned with the adult, and, so far as we are aware, no comparable studies on young and embryonic liza...

Circoviruses are present worldwide in birds and pigs but their occurrence in fish has not yet been reported. Recently, increased mortality was observed in barbel fry (Barbus barbus) in Hungary. This paper reports the detection of previously unknown circular viral DNA genomes in barbels by the use of a circovirus-specific wide-range nested PCR. The analysis of two complete genomes (Barbel circov...

Fieldwork was conducted in 1998 and 1999 in the Okavango River and Delta and a total of 275 fishes representing 31 species were examined for the presence of myxosporean parasites. A total of seven myxosporeans of the genus Myxobolus Bütschli, 1882 were found infecting the fishes. Two new species namely Myxobolus etsatsaensis sp. n. from Barbus thamalakanensis Fowler, 1935 and M. paludinosus sp....

C-mos is a highly conserved intronless gene that has proved useful in the analysis of ancient phylogenetic relationships within vertebrates. We selected the Iberian endemic Schreiber's green lizard (Lacerta schreiberi) that persisted in allopatric refugia since the late Pliocene to investigate the utility of the C-mos nuclear gene for intraspecific phylogeographic studies. Our combination of DN...

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Velkova-Jordanoska, L. & Kostoski, G.: Histopathological analysis of liver in fish (Barbus meridionalis petenyi Heckel) in reservoir Trebeni{ta. Nat. Croat., Vol. 14, No. 2., 147–153, 2005, Zagreb. The Barbus meridionalis petenyi Heck. is a typical benthophagous fish, feeding on the zoobenthos and plant components and thanks to its sensitivity to the changes in surrounding medium is an ideal ob...