Foundation and Prospects of Wild Population Reconstruction of Acipenser dabryanus

Li, Junyi; Du, Hao; Wu, Jin‐Ming; Zhang, Hui; Shen, Li; Wei, Qiwei

doi:10.3390/fishes6040055

Cited by 6 publications

(3 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…From 1983 to 1998, approximately 6 million Chinese sturgeon fry and juveniles were released into the Yangtze River (H. Wang et al., 2019). About 500 to 1,500 adult sturgeons were released each year into the spawning ground of the Yichang section of the Yangtze River from 1997 to 2003 (J. Li et al., 2021; P. Zhuang et al., 1997). In addition, a breakthrough in artificial breeding technology for the two sturgeon species has been made, so that the artificially bred Yangtze sturgeons can be developed to a third generation in the laboratory (D. Li, Prinyawiwatkul, et al., 2021).…”

Section: Fish Conservation Measures In Dammed Riversmentioning

confidence: 99%

River Damming Impacts on Fish Habitat and Associated Conservation Measures

Chen,

Li,

Lin

et al. 2023

Reviews of Geophysics

View full text Add to dashboard Cite

River damming has brought great benefits to flood mitigation, energy and food production, and will continue to play a significant role in global energy supply, particularly in Asia, Africa, and South America. However, dams have extensively altered global river dynamics, including riverine connectivity, hydrological, thermal, sediment and solute regimes, and the channel morphology. These alterations have detrimental effects on the quality and quantity of fish habitat and associated impacts on aquatic life. Indeed, dams have been implicated in the decline of numerous fishes, emphasizing the need for effective conservation measures. Here, we present a global synthesis of critical issues concerning the impacts of river damming on physical fish habitats, with a particular focus on key fish species across continents. We also consider current fish conservation measures and their applicability in different contexts. Finally, we identify future research needs. The information presented herein will help support sustainable dam operation under the constraints of future climate change and human needs.

show abstract

Section: Fish Conservation Measures In Dammed Riversmentioning

confidence: 99%

River Damming Impacts on Fish Habitat and Associated Conservation Measures

Chen,

Li,

Lin

et al. 2023

Reviews of Geophysics

View full text Add to dashboard Cite

show abstract

“…The large scare artificial breeding of wild mature Acipenser dabryanus did not succeed until 2003, and then the second generation and third generation were only achieved in 2007 and 2018, respectively. The cultured juvenile and mature Acipenser dabryanus released into the wild helped restore the population [38]. In the seeding cultivation of Yangtze sturgeon, especially, the artificial weaning stage, with inappropriate nutrient supply can cause a decrease in food intake and slow growth of juveniles, which limits the restoration of the wild Yangtze sturgeon population.…”

Section: Introductionmentioning

confidence: 99%

Motilin, a Novel Orexigenic Factor, Involved in Feeding Regulation in Yangtze Sturgeon (Acipenser dabryanus)

Tang,

Li,

et al. 2024

Biomolecules

View full text Add to dashboard Cite

Motilin is a gastrointestinal hormone that is mainly produced in the duodenum of mammals, and it is responsible for regulating appetite. However, the role and expression of motilin are poorly understood during starvation and the weaning stage, which is of great importance in the seeding cultivation of fish. In this study, the sequences of Yangtze sturgeon (Acipenser dabryanus Motilin (AdMotilin)) motilin receptor (AdMotilinR) were cloned and characterized. The results of tissue expression showed that by contrast with mammals, AdMotilin mRNA was richly expressed in the brain, whereas AdMotilinR was highly expressed in the stomach, duodenum, and brain. Weaning from a natural diet of T. Limnodrilus to commercial feed significantly promoted the expression of AdMotilin in the brain during the period from day 1 to day 10, and after re-feeding with T. Limnodrilus the change in expression of AdMotilin was partially reversed. Similarly, it was revealed that fasting increased the expression of AdMotilin in the brain (3 h, 6 h) and duodenum (3 h), and the expression of AdMotilinR in the brain (1 h) in a time-dependent manner. Furthermore, it was observed that peripheral injection of motilin-NH2 increased food intake and the filling index of the digestive tract in the Yangtze sturgeon, which was accompanied by the changes of AdMotilinR and appetite factors expression in the brain (POMC, CART, AGRP, NPY and CCK) and stomach (CCK). These results indicate that motilin acts as an indicator of nutritional status, and also serves as a novel orexigenic factor that stimulates food intake in Acipenser dabryanus. This study lays a strong foundation for the application of motilin as a biomarker in the estimation of hunger in juvenile Acipenser dabryanu during the weaning phase, and enhances the understanding of the role of motilin as a novel regulator of feeding in fish.

show abstract

“…On the other hand, there is reason for restrained optimism about populations of the shortnose sturgeon (A. brevirostrum) and the Atlantic sturgeon (A. oxyrinchus oxyrinchus), both of which are protected in the United States under the Endangered Species Act [16]. The status of sturgeon is also promising in China, where stocking has restored endangered populations of Yangtze sturgeon (A. dabryanus) and the Chinese sturgeon (A. sinensis) [17,18].…”

Section: Introductionmentioning

confidence: 99%

Re-Establishing Naturally Reproducing Sturgeon Populations in the Caspian Basin: A Wicked Problem in the Ural River

Pueppke,

Nurtazin,

Murzashev

et al. 2023

Water

View full text Add to dashboard Cite

Although Eurasia’s Caspian basin once supported the world’s richest and most diverse complex of sturgeon species, recent human activities have decimated populations of these ecologically and economically important fish. All five anadromous Caspian sturgeon species are critically endangered, and the potamodromous sterlet is also threatened. The precipitous decline of these species is due to a combination of factors that includes illegal, unreported, and unregulated (IUU) fishing; destruction of feeding and spawning habitat; water pollution; and the environmental consequences of climate change. International efforts are currently underway to re-establish sustained naturally reproducing sturgeon populations in the basin. Here, we update and review the status of sturgeon in the Caspian Sea with emphasis on the northern basin and the inflowing Volga and Ural rivers. We then focus on efforts to restore sturgeon in the Ural, which originates in Russia and flows through Kazakhstan before entering the Caspian Sea. With nearly ideal hydrological conditions for sturgeon, the Ural is the basin’s sole remaining river that allows migrating sturgeon unimpeded access to potentially productive spawning grounds. The challenge of re-establishing sturgeon in the Ural River exhibits the classical characteristics of wicked problems: ambiguous definitions, changing assumptions and unanticipated consequences, tradeoffs and economic dependencies, an incomplete and contradictory knowledge base, and no straightforward pathway toward a final solution. This challenge is examined here for the first time from the perspective of its wicked dynamics, with consideration given to approaches that have proven effective elsewhere in resolving wicked environmental problems.

show abstract

Foundation and Prospects of Wild Population Reconstruction of Acipenser dabryanus

Cited by 6 publications

References 26 publications

River Damming Impacts on Fish Habitat and Associated Conservation Measures

River Damming Impacts on Fish Habitat and Associated Conservation Measures

Motilin, a Novel Orexigenic Factor, Involved in Feeding Regulation in Yangtze Sturgeon (Acipenser dabryanus)

Re-Establishing Naturally Reproducing Sturgeon Populations in the Caspian Basin: A Wicked Problem in the Ural River

Contact Info

Product

Resources

About