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As the global environmental pollution problem has received more attention, low-carbon development has become mainstream, and replacing fossil-fuel energy with new energy has become a general trend. Green finance, an important measure for promoting low-carbon development, is critical to the development of the non-hydro renewable energy industry. Using China's provincial panel data from 2008 to 2021, we conducted an empirical analysis to explore the impact of green finance on the development of the non-hydro renewable energy industry. We found the following: (1) Nationally, green finance promoted the development of the non-hydro renewable energy industry. (2) The mechanism test results show that green finance promoted the development of the non-hydro renewable energy industry by improving the level of scientific and technological research as well as reducing the corporate financing cost. (3) Regionally, green finance could significantly promote the development of the non-hydro renewable energy industry in energy-rich regions, while the impact was not significant in energy-poor regions. (4) Green finance significantly promoted the development of the non-hydro renewable energy industry in the inland region, while the impact was not significant in the coastal region. (5) Green finance promoted the development of wind power generation more than it did photovoltaic generation. Based on the findings, the non-hydro renewable energy industry in various regions should be developed according to local conditions, giving full play to the promotional role of green finance. [ABSTRACT FROM AUTHOR]

Background: Tetratrichomonas gallinarum is parasitic protozoa with a wide host range. However, its lethal infection is rare reported. Case presentation: Here, we described the first lethal cases of T. gallinarum infection in black swans in China. Five black swans died within a week in succession without obvious symptoms except mild diarrhea. At necropsy, severe lesions were observed in caeca with thickened caecal walls and hemorrhages in the mucosa. A large number of moving trophozoites were found in the contents of the cecum by microscopic examination. The livers were enlarged with multiple bleeding spots on the surface. Histopathology of the livers showed mononuclear cell infiltration and moderate hyperplasia of fibrous tissue. The histopathology of the cecum showed that the villi of the cecum were edematous. Finally, the presence of T. gallinarum was determined by specific PCR andin-situ hybridization assay. Additionally, common pathogens that can cause similar symptoms were excluded. Conclusions: The death of the black swan was caused by T. gallinarum, suggesting that the parasite might be a new threat to the Cygnus birds. [ABSTRACT FROM AUTHOR]

While curbing the spread of Coronavirus Disease 2019 (COVID-19), lockdown policies and "stay-at-home" restrictions caused massive supply chain disruptions worldwide. This led to breaks in spatial market integration, which could further lead to market inefficiency and resource misallocation. Taking daily price data from 2016 to 2021, this study investigates COVID-19's effect on the spatial market integration of fish in China using cointegration tests. We find a high degree of spatial market integration for fish in China before the COVID-19 pandemic. Further, our results show that COVID-19's effect on the spatial market integration of fish varies spatially in China. Specifically, COVID-19 reduces the degree of spatial market integration in most provinces, especially those with high infection rates. Meanwhile, the degree of spatial market integration in provinces with low infection rates remains high. Therefore, the government should be regionally specific when formulating market recovery policies. • First study on how a public health emergency affects spatial market integration of fish • COVID-19 reduces the degree of spatial market integration in most provinces, especially those with high infection rates. • The degree of spatial market integration in provinces with low infection rates remains high after the pandemic. [ABSTRACT FROM AUTHOR]

Heavy metal pollution in water seriously affects human health. The disadvantages of traditional metal ion detection methods involve long and cumbersome chemical pretreatment in the early stage, and large volume of samples. In this study, microalgae were used as the medium, and terahertz spectroscopy technology was employed to collect the changes of material components in it, so as to deduce the types and concentrations of heavy metal pollution in water. Through the partial least square(PLS), we establish the prediction model of heavy metal concentration, and the results show that the best detection time for Pb2+ is 6 h and Ni2+ is 18 h. The principal component analysis(PCA) shows that β-carotene is the most affected substance. Afterward we collect five real surface waters in East China and verify that the judgment accuracy of Pb2+ and Ni2+ are 100% and 93.2% respectively. The results indicate that the time is shorter than the traditional pretreatment time from more than 20–6 h, the sample volume is reduced from 50 mL to 10 mL, the detection accuracy is improved from 10 ng/mL to 1 ng/mL. In a word, we provide a new fast and real-time method for biological monitoring of heavy metal pollution in water. [Display omitted] • Detection of heavy metal pollution in water by terahertz spectroscopy combined with microalgae. • The accuracy of detecting the concentration of Pb2+ and Ni2+ is 0.1 ng/mL. • The prediction accuracy of Pb2+ is 100%, The prediction accuracy of Ni2+ is 93.2%. • The prediction time of Pb2+ is 6 h. • The consumed sample size is 10 mL. [ABSTRACT FROM AUTHOR]

Moraxella bovoculi was isolated and identified in ocular fluid samples collected from 9 racehorses with infectious keratoconjunctivitis in China in 2013. All 9 M. bovoculi isolates were hemolytic, Gram-negative diplococci that were phenylalanine deaminase positive. The sequence of the 16S ribosomal DNA (rDNA) gene of the isolates matched the 16S rDNA sequence of M. bovoculi. Amplification of the 16S–23S intergenic spacer region followed by AfaI digestion produced a 600–base pair product, a result characteristic of M. bovoculi isolates. The phylogenetic analysis based on the 16S rDNA sequence confirmed the strain isolated in the current study had genetic homology with M. bovoculi. [ABSTRACT FROM PUBLISHER]

Vibrio vulnificus is a Gram-negative, curved, obligate halophilic marine bacterium that exclusively exists in coastal seawaters. Previous studies revealed that V. vulnificus is one of the most dangerous foodborne zoonotic pathogens for human beings. However, it remains unknown whether marine mammals can be infected by V. vulnificus. In May 2016, a captive spotted seal (Phoca largha) died due to septicemia induced by V. vulnificus. Upon post-mortem examination, V. vulnificus was isolated, identified, and named as BJ-PH01. Further analysis showed that BJ-PH01 belongs to biotype 1 and the Clinical genotype. Furthermore, we performed an epidemiological investigation of V. vulnificus in six aquariums in northern China. As a result, V. vulnificus was successfully isolated from all investigated aquariums. The positive rates ranged from 20% to 100% in each investigated aquarium. During the investigation, 12 strains of V. vulnificus were isolated, and all 12 isolates were classified into biotype 1. Eleven of the 12 isolates belonged to the Clinical genotype, and one isolate belonged to the Environmental genotype. All 12 isolated V. vulnificus strains showed limited antibiotic resistance. Overall, our work demonstrated that V. vulnificus is frequently distributed in aquariums, thus constituting a threat to captive marine mammals and to public health., (© 2018 Blackwell Verlag GmbH.)