Genetical and Morphological Identification of (Digenea, Prosthogonimidae) in .

Species of the family Prosthogonimidae are considered the most pathogenic trematodes of poultry and wild birds worldwide, causing heavy economic losses in many countries. Prosthogonimosis was a common parasitic disease of (Müller, 1776) which caused inflammation of the cloaca and bursa of Fabricius and even death. Morphological identifications of species are easily confusing; therefore, molecular characterization is used for discrimination.

Survey of the Prosthogonimus spp. metacercariae infection in the second intermediate host dragonfly in Heilongjiang Province, China.

Prosthogonimiasis poses a threat to the reproductive system of poultry and wild birds, which are the definitive hosts of the parasite causing this disease. However, the parasite infection of the second intermediate host (dragonfly), the primary vector of this pathogen, is rarely reported. In this study, the prevalence of Prosthogonimus infection in dragonflies was investigated from June 2019 to October 2022 in Heilongjiang Province, northeast China.

Effects of salinity on methane emissions and methanogenic archaeal communities in different habitat of saline-alkali wetlands.

The increase in temperature caused by global climate change has promoted the salinization of wetlands. Inland saline-alkaline wetlands have an environment of over-humidity and shallow water and are hot spots for CH emissions. However, there are few reports on the effect of salinity on CH emissions in inland saline-alkaline wetlands.

Frailty affects prognosis in patients with colorectal cancer: A systematic review and meta-analysis.

Background: The prevalence of colorectal cancer has remained high. Most patients have already developed into the middle and advanced stage when they are diagnosed with colorectal cancer, and a small number of them are accompanied by metastasis. In recent years, frailty has been recognized as an important factor affecting the prognosis of colorectal cancer.

The complete mitochondrial genome of Prosthogonimus cuneatus and Prosthogonimus pellucidus (Trematoda: Prosthogonimidae), their features and phylogenetic relationships in the superfamily Microphalloidea.

Prosthogonimus cuneatus and Prosthogonimus pellucidus (Trematoda: Prosthogonimidae) are common flukes of poultry and other birds which can cause severe impacts on animal health and losses to the poultry industry. However, there are limited studies on the molecular epidemiology, population genetics, and systematics of Prosthogonimus species. In the present study, the complete mitochondrial (mt) genomes of P.

Characterization of the trophic transfer and fate of methylmercury in the food web of Zhalong Wetland, Northeastern China.

The transfer and fate of methylmercury (MeHg) in typical components, such as sediment, sediment-inhabiting animals, pelagic fish, and three large waterfowls, namely, red-crowned crane (Grus japonensis), mallard (Anas platyrhynchos), and oriental stork (Ciconia boyciana), of the ecosystem in China's Zhalong Wetland were examined using equivalence-based mass balance model. The biomagnification degree of MeHg increased on the species at the high trophic level of the system. Hence, elevated MeHg concentration (3.

Assessment of Pb and Cd contaminations in the urban waterway sediments of the Nen River (Qiqihar section), Northeastern China, and transfer along the food chain.

The increasing anthropogenic inputs of Pb and Cd into China's Nen River (Qiqihar section) owing to rapid urbanization in the past 50 years may pose ecological risks to the river's aquatic system. To confirm this hypothesis, we determined the Pb and Cd concentrations in the sediments of the Nen River flowing across Qiqihar City by comparing the control group (samplings in the Nen River branch bypassing the city) and bioaccumulation along the food chain. We found significantly higher Pb concentrations in the sediments than in the control group (39.

Lead in the Red-Crowned Cranes (Grus japonensis) in Zhalong Wetland, Northeastern China: A Report.

The dietary uptake of Cd and Pb may contribute to the decline of migratory red-crowned cranes (Grus japonensis) on the Asian mainland. To uncover the relevance of this hypothesis, we determined the concentrations of Pb and Cd as well as further macro and trace elements (Ca, Mg, Cu, Zn, Hg and As) in the gastric contents, gastric wall, intestinal wall, liver, kidney, muscle, and feathers of two individuals found dead in Zhalong Wetland in Northeastern China. Indeed, the Pb concentrations in the liver and kidney tissues was with 31.

Characterization of heavy metal contamination in the habitat of red-crowned crane (Grus japonensis) in Zhalong Wetland, northeastern China.

Heavy metal enrichment in the prey of red-crowned cranes in Zhalong Wetland, northeastern China was researched. Lead and Cd were the most abundant elements in the sediments; their concentrations ranged from 9.85 to 127 ppm and from 1.