| when the american sea sturgeon swam east. | the two species of atlantic sea sturgeon on either shore of the north atlantic, acipenser sturio in europe and a. oxyrinchus in north america, probably diverged with the closure of the tethys sea and the onset of the north atlantic gyre 15-20 million years ago, and contact between them was then presumably precluded by geographic distance. here we present genetic, morphological and archaeological evidence indicating that the north american sturgeon colonized the baltic during the middle ages and ... | 2002 | 12368843 |
| chromosomal mapping of 18s-28s and 5s rrna genes by two-colour fluorescent in situ hybridization in six sturgeon species. | the number and distribution of the 18s-28s and 5s rrna (rdna) gene sequences were examined on mitotic chromosomes of six sturgeon species by two-colour in situ hybridization. four of the six species, huso huso, acipenser stellatus, acipenser sturio, and acipenser ruthenus, with about 120 chromosomes, showed from six to eight 18s-28s rdna signals, while 5s rdna signals were on only one chromosome pair. the two species with 250-270 chromosomes, acipenser baerii and acipenser transmontanus, showed ... | 2003 | 12834065 |
| sry-related (sox) genes in the genome of european atlantic sturgeon (acipenser sturio). | the sox-gene family represents an ancient group of transcription factors involved in numerous developmental processes and sex determination in vertebrates. sox proteins are characterized by a conserved high mobility group (hmg)-box domain, which is responsible for dna binding and bending. we studied sox genes in sturgeon, one of the most primitive groups of fishes characterized by a high chromosome number. male and female genomes were screened for sox genes using highly degenerate primers that a ... | 2005 | 15838539 |
| the holocene occurrence of acipenser spp. in the southern north sea: the archaeological record. | archaeological sturgeon remains from the southern north sea basin used to be automatically attributed to acipenser sturio, since this was the only acipenserid species believed to occur there. these species identifications, however, were in need of revision after a growing number of indications were found for the historical presence of acipenser oxyrinchus in western europe. in this study, morphological and genetic data on sturgeon remains from archaeological sites along the southern north sea ar ... | 2016 | 27503775 |
| assessing the potential of the european atlantic sturgeon acipenser sturio to control bivalve invasions in europe. | this pilot study explored the potential of juvenile european atlantic sturgeon acipenser sturio to feed on two invasive bivalve species, the asian clam corbicula fluminea and the eurasian zebra mussel dreissena polymorpha. preliminary results indicate that native a. sturio were feeding on d. polymorpha at a very limited rate and their potential to prevent the establishment of invasive bivalve species, in new and previously invaded areas, is considered limited. | 2016 | 27238016 |
| phylogeography of the european sturgeon (acipenser sturio): a critically endangered species. | the european sturgeon (acipenser sturio) was once a common species throughout europe, but the sole remaining natural population presently inhabits the gironde estuary in france (atlantic coast). the species was classified as 'critically endangered' in 1996, and the gironde population is now on the verge of extinction. in this setting, and for the first time, we present the past phylogeographical features of this species throughout europe along with an assessment of its former genetic diversity. ... | 2016 | 26424382 |
| complete mitochondrial genome sequences of atlantic sturgeon, acipenser oxyrinchus oxyrinchus, gulf sturgeon, a. o. desotoi and european sturgeon a. sturio (acipenseriformes: acipenseridae) obtained through next generation sequencing. | complete mitochondrial genome sequences of european sturgeon and two subspecies of the north american, atlantic and gulf sturgeons were determined using miseq illumina technology. all three genomes show typical vertebrate organization. they possess 22 trna genes, 13 protein-coding genes, 2 rrna (ribosomal rna) genes and a non-coding control region. excluding nd6, all protein-coding genes are on the heavy strand. the whole mitogenome sequences have been deposited in genbank under accession number ... | 2016 | 26017050 |
| optimization of enzyme-assisted extraction and characterization of collagen from chinese sturgeon (acipenser sturio linnaeus) skin. | sturgeon (acipenser sturio linnaeus) skin contains high amount of nutrients including unsaturated fatty acids and collagen. a pepsin-assisted extraction procedure was developed and optimized for the extraction of collagen from chinese sturgeon (acipenser sturio linnaeus) skins. | 2013 | 24143042 |
| distinguishing species of european sturgeons acipenser spp. using microsatellite allele sequences. | five microsatellite markers were analysed and their alleles were sequenced for the three sturgeon species that lived in western europe: the european sturgeon acipenser sturio, the atlantic sturgeon acipenser oxyrinchus and the adriatic sturgeon acipenser naccarii. a total of 94 different allele sequences were obtained. fixed mutations in the flanking regions or in the core repeat of microsatellites provided a clear distinction between the different species. comparison of allele sequences also pr ... | 2011 | 21235556 |
| a new deropristiid species (trematoda: deropristiidae) from the lake sturgeon acipenser fulvescens in wisconsin, and its biogeographical implications. | pristicola bruchi n. sp. (trematoda: deropristiidae) is described from the spiral-valved intestine of the lake sturgeon, acipenser fulvescens, from the wolf river in wisconsin, united states. it differs from the only other species of the genus, pristicola sturionis, a parasite of the european atlantic sturgeon acipenser sturio, in being smaller and in possessing the following characters: a single row of conspicuous peg-like oral spines instead of 2 rows; vitelline follicles that are dorsally con ... | 2009 | 19463039 |
| atlantic sturgeons (acipenser sturio, acipenser oxyrinchus): american females successful in europe. | recent molecular data on the maternally inherited mitochondrial (mt) dna have challenged the traditional view that the now extinct baltic sturgeon population belonged to the european sturgeon acipenser sturio. instead, there is evidence that american sea sturgeon acipenser oxyrinchus historically immigrated into the baltic sea. in this study, we test the hypothesis that a. oxyrinchus introgressed into, rather than replaced, the a. sturio population in the baltic. we established four single nucle ... | 2007 | 17111181 |
| characterization of sox9 in european atlantic sturgeon (acipenser sturio). | the sox9 gene of acipenser sturio, one of the most primitive vertebrates, was analyzed. no sex-specific differences were observed. sturgeon sox9 consists of three exons and two introns with completely conserved exon-intron boundaries showing high levels of homology to other vertebrate sox9 sequences, especially in the n-terminus region containing the hmg box. we found strong evidence for negative (purifying) selection. in contrast to previous studies of other fishes, we observed no evidence for ... | 2009 | 15710905 |
| molecular cytogenetic analysis of the karyotype of the european atlantic sturgeon, acipenser sturio. | a karyotype analysis was carried out on the european atlantic sturgeon, acipenser sturio (2n=121 +/- 3). the telomeric sequence repeat (ttaggg)n detected by fluorescent in situ hybridization (fish) was mostly localized at the telomeres of all chromosomes. ribosomal dna (rdna) genes were detected by silver staining techniques and by fish with digoxigenin-labelled probe for 28s rdna. silver staining detected active nors in the telomeric regions of six chromosomes, and by fish one or two additional ... | 1999 | 10620023 |
| [amino acid composition, heterogeneity and antiheparin activity of protamine sulfate from the milt roe of the sturgeon acipenser sturio]. | the homogeneous preparation of protamine sulphate is obtained chromatographically and electrophoretically from milt roe of the sturgeon. its amino acid composition and properties are studied. the methods to blockade the functional groups of protamine sulphate amino acids is used to investigate the possible mechanism of heparin inactivation. | 2015 | 2631325 |
| [zone paper electrophoresis of the plasma of acipenser sturio linné]. | | 1958 | 13639478 |
| reflex cardiac inhibition in the ganoid acipenser sturio. | | 1950 | 15406353 |
| fat metabolism in fishes: the peritoneal, pancreatic and liver fats of the sturgeon (acipenser sturio). | | 1932 | 16745027 |