Post-Fishing Ban Period: The Fish Diversity and Community Structure in the Poyang Lake Basin, Jiangxi Province, China DOI Creative Commons

Chiping Kong,

Yulan Luo,

Qun Xu

et al.

Animals, Journal Year: 2025, Volume and Issue: 15(3), P. 433 - 433

Published: Feb. 4, 2025

Between 2022 and 2023, four systematic fish surveys were carried out in the Poyang Lake basin (PLB), capturing 49,192 (7017 kg) identifying 120 species from 10 orders, 21 families, 70 genera. Cypriniformes most dominant, accounting for 79 species. The spring autumn collected 25,734 23,458 individuals, respectively, with corresponding biomasses of 3978 kg 3038 kg. Dominant (IRI > 1000) study area included Hemiculter leucisculus, Megalobrama skolkovii, Hypophthalmichthys molitrix, Aristichthys nobilis. Additionally, critically endangered such as Ochetobius elongatus, Myxocyprinus asiaticus, Acipenser sinensis well exotic like Cirrhinus mrigala euryhaline Cynoglossus gracilis Hyporhamphus intermedius observed. Hierarchical clustering grouped survey stations into three distinct areas (PYS, XBMS, XBUS), ANOSIM analysis showing highly significant differences (R = 0.893, p < 0.01). Redundancy (RDA) indicated that spring, total phosphorus (TP) temperature main factors influencing variability (80.50%), while autumn, temperature, oil, pH key (75.20%). This emphasizes predictable changes community composition caused by environmental gradients highlights need ongoing monitoring to effectively manage protect ecosystem, particularly post-fishing ban period.

Language: Английский

Assessment of Fish Species Biodiversity in the Yong River Basin Based on Environmental DNA Metabarcoding DOI Creative Commons
Shengming Deng,

Bai-an Lin,

Yan Luo

et al.

Diversity, Journal Year: 2025, Volume and Issue: 17(1), P. 35 - 35

Published: Jan. 2, 2025

Fish in the Yong River basin have been significantly impacted by pollution, habitat modification and overfishing. In order to facilitate recovery of freshwater biodiversity, a fishing ban has implemented since 2022. However, high level human activity along waterways poses significant challenge monitoring fish biodiversity using established methods. It is essential, therefore, effective tools assess effectiveness policy. this study, environmental DNA (eDNA) metabarcoding was employed species across five river sections October Additionally, we checked results against gear (drift gillnets ground cages) surveys historical records. A total twenty-two were found from eDNA metabarcoding, fourteen via fishing, only two both The most dominant identified Alburnus mossulensis, present all sections. decline observed whole basin, with difference community composition Upper Yao (UYAR) (YOR). Moreover, detected potentially invasive consistent their geographic distribution. Overall, study provide snapshot current offering baseline data for future evaluations policies ecosystem.

Language: Английский

Citations

2
Environmental DNA metabarcoding shows potential for monitoring meiofauna and marine nematodes diversity in mangrove ecosystems in China DOI Creative Commons

Mingcheng Hu,

Yuqing Guo,

Fenfen Ji

et al.

Ecological Indicators, Journal Year: 2025, Volume and Issue: 170, P. 113134 - 113134

Published: Jan. 1, 2025

Language: Английский

Citations

1
Post-Fishing Ban Period: The Fish Diversity and Community Structure in the Poyang Lake Basin, Jiangxi Province, China DOI Creative Commons

Chiping Kong,

Yulan Luo,

Qun Xu

et al.

Animals, Journal Year: 2025, Volume and Issue: 15(3), P. 433 - 433

Published: Feb. 4, 2025

Between 2022 and 2023, four systematic fish surveys were carried out in the Poyang Lake basin (PLB), capturing 49,192 (7017 kg) identifying 120 species from 10 orders, 21 families, 70 genera. Cypriniformes most dominant, accounting for 79 species. The spring autumn collected 25,734 23,458 individuals, respectively, with corresponding biomasses of 3978 kg 3038 kg. Dominant (IRI > 1000) study area included Hemiculter leucisculus, Megalobrama skolkovii, Hypophthalmichthys molitrix, Aristichthys nobilis. Additionally, critically endangered such as Ochetobius elongatus, Myxocyprinus asiaticus, Acipenser sinensis well exotic like Cirrhinus mrigala euryhaline Cynoglossus gracilis Hyporhamphus intermedius observed. Hierarchical clustering grouped survey stations into three distinct areas (PYS, XBMS, XBUS), ANOSIM analysis showing highly significant differences (R = 0.893, p < 0.01). Redundancy (RDA) indicated that spring, total phosphorus (TP) temperature main factors influencing variability (80.50%), while autumn, temperature, oil, pH key (75.20%). This emphasizes predictable changes community composition caused by environmental gradients highlights need ongoing monitoring to effectively manage protect ecosystem, particularly post-fishing ban period.

Language: Английский

Citations

0