How does the climate change effect on hydropower potential, freshwater fisheries, and hydrological response of snow on water availability?

Applied Water Science, Год журнала: 2024, Номер 14(4)

Опубликована: Март 7, 2024

Abstract Globally there is already a lot of pressure on water resources because climate change, economic development, as well an increasing global populace. Many rivers originate in the mountains, where snowfall fluctuations and climate’s inherent unpredictability affect hydrological processes. Climate change sensitivity has been recognized recent years would hydropower, such humidity, cloudiness, precipitation, that are considered; warming emerges one most important contributors to change. The Yangtze River supports rich biodiversity provides ecosystem services for human survival development. In addition, changes, particularly short-term long-term precipitation temperature fluctuations, influence snow regime development river flow response at basin sub-basin scales. More precise this review focused understand hydropower potential, freshwater fisheries, dynamics snow-dominated basins.

Язык: Английский

---

A large geographic-scale characterization of organochlorine pesticides (OCPs) in surface sediments and multiple aquatic foods of inland freshwater aquaculture ponds in China: Co-occurrence, source and risk assessment

Environmental Pollution, Год журнала: 2022, Номер 308, С. 119716 - 119716

Опубликована: Июль 6, 2022

Язык: Английский

---

Effects of Citrobacter freundii on sturgeon: Insights from skin mucosal immunology and microbiota

Fish & Shellfish Immunology, Год журнала: 2024, Номер 149, С. 109527 - 109527

Опубликована: Март 30, 2024

Язык: Английский

---

Overturning stereotypes: The fuzzy boundary between recreational and subsistence inland fisheries

Fish and Fisheries, Год журнала: 2022, Номер 23(6), С. 1282 - 1298

Опубликована: Июнь 15, 2022

Abstract Inland recreational fisheries provide numerous socio‐economic benefits to fishers, families and communities. Recreationally harvested fish are also frequently consumed may affordable sustainable but undervalued contributions human nutrition. Quantifying the degree which recreationally contribute food security subsistence is impeded by lack of data on harvest consumption difficulty in differentiating among fisheries. Recreational records tend be limited wealthy, food‐secure countries well‐monitored with clear regulations or permitting systems. These often neglect components food‐insecure fishers who potentially more likely have as a motivation. Here, we highlight ‘fuzzy boundary’ that can exist between inland argue unreported hidden contributor some populations. We draw local case studies from around world specific instances where species participating use these examples diversity ways nutrition, knowledge gaps understanding fishing for food, consequences not accounting them policy management. The aim this paper attention resource managers makers, create greater social awareness importance bring light contribution nutrition subsistence.

Язык: Английский

---

Quantifying the Colonization of Environmental Microbes in the Fish Gut: A Case Study of Wild Fish Populations in the Yangtze River

Frontiers in Microbiology, Год журнала: 2022, Номер 12

Опубликована: Фев. 17, 2022

In aquatic animals, gut microbial communities shift with host development and living environments. Understanding the mechanism by which environment impacts of animals is crucial for assessing managing ecosystem health. Here, we proposed a simplified framework colonization dynamics communities. Then, to quantify environmental microbes in wild fish gut, current study used 16S rRNA gene amplicon sequencing obtain structure water community 10 populations (Leiocassis crassilabris, Leiocassis longirostris, Pelteobagrus vachelli, Silurus asotus, Siniperca chuatsi, Coilia brachygnathus, Aristichthys nobilis, Hypophthalmichthys molitrix, Coreius heterodon, Xenocypris argentea) from Wuhan section Yangtze River, relationship these was analyzed. The results identified that most individuals, approximately 80% [at operational taxonomic unit (OTU) level] were shared (except individuals chuatsi 74%). more than 95% species (OTUs) transient. For species, 99% introduced into Nearly 79% OTUs 89% could be gut. Driven introduction transient microbes, fishes similar feeding habits had indicated adult fishes, microbiota related habits. We therefore encourage future research focus on monitoring management promote better conservation animals. It important note that, because various influence factors, interspecific differences individual variations characteristics, quantification work approximate rather accurate. hope comparable conducted outline quantitative characteristics between as soon possible.

Язык: Английский

---

Gap analysis for DNA-based biomonitoring of aquatic ecosystems in China

Ecological Indicators, Год журнала: 2022, Номер 137, С. 108732 - 108732

Опубликована: Март 3, 2022

DNA-based taxon identification is improving the assessment and management of biodiversity in rivers. However, lack comprehensive DNA barcode reference libraries globally highly unequal coverage are still hindering application prospects this method worldwide. Here, we analyzed COI gap two libraries, Barcode Life Data Systems (BOLD) NCBI GenBank, with a focus on three aquatic animal groups (freshwater fish, insects molluscs) Chinese Our data show gaps (e.g., organisms without barcodes) ca. 40–70% taxa these BOLD or GenBank database, respectively. These can rise even further if thresholds set to contain at least five sequences per taxon. Furthermore, most barcodes from non-local samples, only 14.4% 28.8% (NCBI GenBank) were sampled China, The pairwise genetic distance local 3 5 times lower than barcodes, indicating that latter may not be good substitute. When looking individual catchments, 60% potentially occurring species have one more yet varies slightly across ten major river ranging 54.3% (Liao River basin) 68.2% (Huai basin). Salmoniformes Perciformes freshwater Odonata Diptera insects, Bivalvia molluscs best catchments (mean >70%). This study gives first overview current status results will help better interpret metabarcoding studies also provide basis develop strategy filling China.

Язык: Английский

---

A review of conservation status of freshwater fish diversity in China

Journal of Fish Biology, Год журнала: 2023, Номер 104(2), С. 345 - 364

Опубликована: Ноя. 6, 2023

China harbors a high species diversity of freshwater fishes not shared with any its neighboring nations. Freshwater fish in the country has been under severe threat from human activities over past decades, thus conservation and ecosystems is urgently needed. To accumulate baseline data for guiding protection actions, third red list assessment Chinese was carried out. Among assessed, there are 355 at-risk (22.3% total), including 69 ranked as Critically Endangered, 97 189 Vulnerable. Two classified Extinct one Regionally Extinct. China's level seems to be lower than known average found IUCN's global fishes, but this an artifact rate Data Deficient. Conservation presently facing grim situation China. Imperilment primarily attributed habitat loss degradation arising perturbations, particularly river damming. Despite adoption protected areas setting up, captive breeding release, fishing moratorium, efforts compromised by disproportional attention biodiversity conservation, deficiency, insufficiently designed networks, inefficient or inadequate implementation strategies. achieve objectives it proposed conduct national-scale survey reassess their status, develop systematic planning ecosystems, prioritize strategies development, perform genetic-based releasing concert other implement flexible moratorium different water bodies.

Язык: Английский

---

Preparation of Enzyme-Soluble Swim Bladder Collagen from Sea Eel (Muraenesox cinereus) and Evaluation Its Wound Healing Capacity

Marine Drugs, Год журнала: 2023, Номер 21(10), С. 525 - 525

Опубликована: Окт. 3, 2023

In the present research, enzyme-facilitated collagen from sea eel (Muraenesox cinereus) swim bladder was isolated, and characteristics were analyzed. Then, sponge prepared its potential mechanism in promoting skin wound healing mice further investigated. Collagen obtained of eels employing pepsin extraction technique. Single-factor experiments served as basis for response surface method (RSM) to optimize concentration, solid-liquid ratio, hydrolysis period. With a concentration 2067 U/g, ratio 1:83 g/mL, period 10 h, achieved yield 93.76%. The physicochemical analysis revealed that extracted belonged type I collagen, displayed fibrous structure under electron microscopy. Furthermore, comparison control group, treated with dressing exhibited elevated activities superoxide dismutase (SOD), catalase (CAT), total antioxidant capacity (T-AOC), glutathione peroxidase (GSH-Px), decreased levels malondialdehyde (MDA), interleukin (IL)-1β, (IL)-6, tumor necrosis factor (TNF)-α. effectively alleviated inflammation area, facilitating efficient repair rapid tissue. During initial phase healing, group an enhancement expressions cluster differentiation (CD)31, epidermal growth (EGF), transforming (TGF)-β1, leading accelerated rate healing. addition, this could also downregulate CD31, EGF, prevent scar formation later stage. Moreover, treatment minimized oxidative damage during facilitated blood vessel wound. Consequently, it exhibits significant ideal material development dressing.

Язык: Английский

---

Biotic resistance to fish invasions in southern China: Evidence from biomass, habitat, and fertility limitation

Ecological Applications, Год журнала: 2023, Номер 33(8)

Опубликована: Фев. 16, 2023

Abstract Understanding the mechanisms underlying invasion success or failure of alien species can help to predict future invasions and cope with invaders. The biotic resistance hypothesis posits that diverse communities are more resistant invasion. While many studies have examined this hypothesis, majority them focused on relationship between native richness in plant communities, results often been inconsistent. In southern China, rivers invaded by fish species, providing an opportunity test invasions. Using survey data for 60,155 freshwater collected from five main China 3 years, we assessed relationships biomass fishes at river reach spatial scales, respectively. Based two manipulative experiments, further impact habitat selection reproductive ability exotic model Coptodon zillii . We found no apparent richness, whereas significantly decreased increasing richness. C. preferred invade those habitats had low given evenly distributed food resources; reproduction was strongly depressed a carnivorous Channa maculata Together, our indicate diversity continue provide terms limiting their growth, selection, when these aliens successfully China. thus advocate biodiversity conservation, especially key mitigate against population development ecological species.

Язык: Английский

---

Does aquaculture aggravate exotic fish invasions in the rivers of southern China?

Aquaculture, Год журнала: 2021, Номер 547, С. 737492 - 737492

Опубликована: Сен. 22, 2021

Язык: Английский

---