The threatened status of acipenseriform species: A summary

Birstein, Vadim J.; Bemis, William E.; Waldman, John R.

doi:10.1007/0-306-46854-9_33

Cited by 129 publications

(147 citation statements)

References 33 publications

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“…Thus, we chose the Chinese sturgeon (Acipenser sinensis) to explore the origin and evolution of DAZ family genes in vertebrates. On the other hand, Chinese sturgeon is a rare and endangered species, due to anthropogenic interference, such as over-fishing, damming of rivers and pollution (Birstein et al 1997;Wei et al 1997). Controlled propagation has been successfully conducted (Wei et al 2013) and proven to be important for its conservation.…”

Section: Electronic Supplementary Materialsmentioning

confidence: 99%

Differential expression of fertility genes boule and dazl in Chinese sturgeon (Acipenser sinensis), a basal fish

Yue

et al. 2015

Cell Tissue Res

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The gene family DAZ (deleted in Azoospermia), including boule, dazl and DAZ, performs highly conserved functions in germ cell development and fertility across animal phyla. Differential expression patterns have been demonstrated for the family members in invertebrates and vertebrates including fish. Here, we report the identification of boule and dazl and their expression at both RNA and protein levels in developing and mature gonads of Chinese sturgeon (Acipenser sinensis). Firstly, the isolation of the boule and dazl genes in Chinese sturgeon and the observation of the two genes in coelacanth suggest that dazl originated after the divergence of bony fish from cartilaginous fish but before the emergence of the Actinistia. Quantitative real-time PCR and western blot analyses reveal that boule and dazl RNA and proteins are restricted to the testis and ovary. In situ hybridization and fluorescent immunohistochemistry show that the bisexual mitotic and meiotic germ cell expression of dazl RNA and protein is conserved in vertebrates, while Chinese sturgeon boule RNA and protein exhibit mitotic and meiotic expression in the testis, and also likely display mitotic and meiotic expression in female. Moreover, we directly demonstrate for the first time that sturgeon Balbiani body/mitochondrial cloud disperses in the cytoplasm of early developing oocytes and co-localizes with Dazl to some extent. Finally, urbilaterian boule may also have an ancestral function in oogenesis. Taken together, these results provide useful information on the evolution of DAZ family genes, expression patterns and functions in animal reproduction.

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Section: Electronic Supplementary Materialsmentioning

confidence: 99%

Differential expression of fertility genes boule and dazl in Chinese sturgeon (Acipenser sinensis), a basal fish

Yue

et al. 2015

Cell Tissue Res

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“…Chinese sturgeon (Acipenser sinensis) is one of the Acipenseriformes, a group of cartilage ganoid with an evolutionary history of over 200 million years (Wei et al, 1997;Birstein et al, 1997). As compared with other sturgeon species, its stock has declined dramatically due to overfishing, loss of natural habitat for reproduction and interference by other human activities (Wei et al, 1997;Billard and Lecointre, 2001;Wei, 2003).…”

Section: Introductionmentioning

confidence: 99%

Molecular and expression characterization of two somatostatin genes in the Chinese sturgeon, Acipenser sinensis

Wei

Zhou

et al. 2009

Comparative Biochemistry and Physiology Part A: Molecular &

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“…Nowadays, only four sturgeon species survived: beluga (Huso huso), Russian sturgeon (Acipenser gueldenstedii), Stellate sturgeon (Acipenser stellatus) and Sterlet (Acipenser ruthenus), but they are in a major decline (Birstein et al, 1997;Barannikova et al, 2000). This decline is predicted to continue as illegal fishing at sea, and in rivers, for caviar will soon result in the extinction of the remaining natural wild population.…”

Section: Introductionmentioning

confidence: 99%

Morphometric Characteristics and Length-Weight Relationship of Russian Sturgeon Juveniles Fed with Different Ratio

Andrei¹,

Cristea²,

Dediu³

et al. 2017

BUASVMCN-ASB

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The aim of this paper was to analyze some morphometric characteristics and the correlation between them for Russian sturgeon juveniles (Acipenser gueldenstaedtii) reared in a recirculating aquaculture system fed at different fed with different ratio: 1% body weight (BW), 1.5% BW, 2% BW and ad libitum feeding (which was around 2.8% BW).Fish, with an average body mass around 248.194 ± 1.59 g. Following biometric measurements were made for each fish, including weight (W), total length (TL), standard length (SL), fork length (FL), maximum body depth (last depth of caudal peduncle, H); preanal distance (AD), predorsal distance (PD), length of head (C), preorbital distance (PO), length of pectoral fin (LPF), interorbital distance (ID), maximum width of head (MH), width of mouth (WM), width of the head at the level of the mouth (WHM). The obtained results showed significant differences between all morphometric measurements (p<0.05) for all the experimental variants, emphasizing that in the ad libitum feeding all morphometric measurements were significantly higher than in the other experimental variants. In order to highlight more eloquent these differences, were developed some linear regressions between the morphometric measurements and significant positive correlation (p<0.05) between dependent and independent variables were found.

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The threatened status of acipenseriform species: A summary

Abstract: increased demand has recently driven the price of black market smoked sturgeon as high as $26 a kilogram. With poachers standing to gain roughly a third of this price [besides the much higher price of caviar], a large fish could be worth thousands of dollars.

Cited by 129 publications

References 33 publications

Differential expression of fertility genes boule and dazl in Chinese sturgeon (Acipenser sinensis), a basal fish

Differential expression of fertility genes boule and dazl in Chinese sturgeon (Acipenser sinensis), a basal fish

Molecular and expression characterization of two somatostatin genes in the Chinese sturgeon, Acipenser sinensis

Morphometric Characteristics and Length-Weight Relationship of Russian Sturgeon Juveniles Fed with Different Ratio

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