By P. Williot, E. Rochard, N. Desse-Berset, J. Gessner, F. Kirschbaum (auth.), Patrick Williot, Eric Rochard, Nathalie Desse-Berset, Frank Kirschbaum, Jörn Gessner (eds.)
The booklet goals at synthesizing our present wisdom of Acipenser sturio and its administration. This species, essentially the most frequent sturgeon species in all places Western Europe starting from the Black Sea to the Baltic, is now at the verge of extinction. significant elements of its biology and administration, together with mismanagement, are supplied in a ancient viewpoint. equally, the adjustments within the recovery courses (in situ and ex situ) initiated in France and Germany are awarded. because the species happened in sympatry with Acipenser oxyrinchus in Germany and Poland and intensely lately in France to boot, a short outlook on restoration-management courses of A. oxyrinchus also are supplied for either North the USA and northern ecu international locations, particularly Germany and Poland. As conservation-restoration activities transcend clinical concerns, non-governmental stakeholders and marine specialist fishermen’s organisations have additionally been requested to give a contribution, and the most important position of a French-German cooperation plan is underlined. part of the ebook is dedicated to views. Illustrations of the eu sturgeon, normally in images, but additionally in stamps and work, are presented.
Read or Download Biology and Conservation of the European SturgeonAcipenser sturioL. 1758: The Reunion of the European and Atlantic Sturgeons PDF
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The ebook goals at synthesizing our present wisdom of Acipenser sturio and its administration. This species, the most common sturgeon species in all places Western Europe starting from the Black Sea to the Baltic, is now at the verge of extinction. significant facets of its biology and administration, together with mismanagement, are supplied in a historical point of view.
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Additional resources for Biology and Conservation of the European SturgeonAcipenser sturioL. 1758: The Reunion of the European and Atlantic Sturgeons
Oxyrinchus do not show any signal with HindIII satellite DNA probe, contrary to A. stellatus, A. ruthenus and Huso huso, and to 240-chromosome species such as A. naccarii, A. gueldenstaedtii, A. baeri and A. transmontanus (Lanfredi et al. 2001; Fontana et al. 2008b). These cytogenetic results are in agreement with previous molecular data obtained by Southern-blot hybridization (Robles et al. 2004). A. sturio and A. oxyrinchus can also be discriminated from all other sturgeon species by PstI satellite DNA probes: they do not show any hybridization signal, while A.
A representative karyotype of 122 chromosomes was composed of 66 meta- and submetacentrics, 56 acrocentrics and microchromosomes. The telomeric sequence repeat (TTAGGG)n detected by fluorescent in situ hybridization (FISH) was localized at the telomeres of all chromosomes. The ribosomal DNA (rDNA) genes were detected by FISH with a digoxigenin-labelled probe for 28S rDNA in the telomeric regions of six chromosomes. The 5S rDNA was found in the interstitial region of a small metacentric pair. The close association between the two rDNA families detected by simultaneous two-colour in situ hybridization (sim-FISH) supports the hypothesis that the A.
In the case of dorsal scutes, the relationships M1/M3 (M1: cranio-caudal diameter or length; M3: transverse diameter or width) have been systematically exploited. The osteometrical analysis of the large Arles Jardin d’Hiver collection (2,500 remains) was done after the morphological study and the bone measurement of modern A. sturio, which made it possible to carry out size reconstitutions of sturgeon populations from the Rhoˆne River (Desse-Berset 1994). Some bones were chosen for this study because of their frequency on the site.
Biology and Conservation of the European SturgeonAcipenser sturioL. 1758: The Reunion of the European and Atlantic Sturgeons by P. Williot, E. Rochard, N. Desse-Berset, J. Gessner, F. Kirschbaum (auth.), Patrick Williot, Eric Rochard, Nathalie Desse-Berset, Frank Kirschbaum, Jörn Gessner (eds.)