Effects of Stocking Density of Filter-Feeding Fishes on Water Quality and Bacterial Community in Rice–Crayfish Polyculture System DOI Open Access
Yuanyuan Zhang,

Liangjie Zhao,

Jiaoyang Duan

и другие.

Water, Год журнала: 2024, Номер 16(16), С. 2296 - 2296

Опубликована: Авг. 14, 2024

To evaluate the effects of filter-feeding fishes on water quality and bacterial community in rice–crayfish coculture system, four different stocking densities bighead carp (0, 500, 1000, 1500 ind./200 m2) were set up systems. Water samples systems collected biweekly to detect dissolved oxygen (DO), temperature (T), potential Hydrogen (pH), ammonia nitrogen (NH4+-N), nitrite (NO2−-N), nitrate (NO3−-N), total (TN), phosphorus (TP), Chlorophyll-a (Chl-a); was analyzed simultaneously, then correlation between microorganisms studied. The results showed that concentrations TN, TP, NO2−-N, NH4+-N decreased while DO NO3−-N increased along with breeding process. NO3−-N, important environmental factors affecting structure (p < 0.05). Bighead had an impact diversity, richness, evenness communities dominant bacteria density groups Proteobacteria, Actinomycetes, Bacteroidetes, Cyanobacteria. abundance Bacteroidea but reduced Cyanobacteria, Proteobacteria. introduction promoted conversion phosphorus, reducing risk cyanobacterial blooms. Group 1000 m2 exhibited best effect removal from body.

Язык: Английский

Caracterización cromatográfica y microbiológica de muestras de suelo provenientes de parcelas de la Comuna Centro del Pueblo Alangasí DOI
Paola Ruíz,

Ismael Calderón,

Pedro Romero

и другие.

Bionatura journal :, Год журнала: 2025, Номер 2(1), С. 1 - 19

Опубликована: Фев. 20, 2025

El suelo es un ecosistema vital para la supervivencia de toda especie dentro del planeta. Este recurso está en riesgo debido a procesos erosivos ocasionados por factores naturales y potenciados actividades antropológicas. presente estudio evaluó calidad los terrenos afectados no incendios forestales Comuna Centro Pueblo Alangasí. Se evaluaron cinco parcelas (197, 200, 205, 274 B) través pruebas cualitativas (cromatografía Pfaiffer) cuantitativas (método gravimétrico LOI). caracterizó preliminarmente las bacterias estas zonas, además realización complementarias medición fósforo glucosa. Los resultados demostraron que parcela 205 (sin afectación) presentó mejor calidad, mientras 197 (afectada incendio) mostró una ligera recuperación, contraste con 200 (suelo tipo cangahua) tuvo condición más desfavorable. Asimismo, se encontró predominancia Gram positivas, especialmente suelos el fuego (197) mayor presencia cangahua (200). En quemada observó acumulación total, así como buena correlación entre glucosa crecimiento bacteriano. Concluyendo cobertura vegetal, cantidad nutrientes, condiciones fisicoquímicas influyen salud suelo. Palabras clave: suelo, incendio forestal, bacterias, materia orgánica, cromatografía, fósforo, glucosa, cangahua, diversidad microbiana

Процитировано

0

Investigation of bioremediation mechanism of nicosulfuron-contaminated soil by highly efficient degrading bacterial consortium YM1: Analysis of degradation genes and microbial community structure DOI

Meiqi Dong,

Yufeng Xiao,

Siya Wang

и другие.

Applied Soil Ecology, Год журнала: 2025, Номер 209, С. 106060 - 106060

Опубликована: Март 28, 2025

Язык: Английский

Процитировано

0

Development of robust nurseries through cyanobacteria as seed priming or nursery media amendment options and their interactions with tomato cultivars DOI Creative Commons

Deepti Varsha,

Akanksha Bhardwaj,

Awani Kumar Singh

и другие.

Scientia Horticulturae, Год журнала: 2025, Номер 346, С. 114169 - 114169

Опубликована: Апрель 1, 2025

Язык: Английский

Процитировано

0

Enhanced remediation of paddy soils contaminated with butachlor through the application of nitrogen-fixing cyanobacteria as a nitrogen fertilizer substitute DOI

Huiyao Liu,

Yu Zhu, Xiao Liang

и другие.

Research Square (Research Square), Год журнала: 2025, Номер unknown

Опубликована: Май 22, 2025

Abstract Butachlor, a widely used herbicide in paddy fields, exhibits persistent environmental residues, posing significant ecological concerns. Nitrogen-fixing cyanobacteria (NFC), as biofertilizer, not only enhance soil fertility and crop growth but also show potential influencing the fate of herbicides. However, specific effects NFC nitrogen fertilizer substitute on butachlor remediation soils remains unexplored. To address this, 105-day outdoor pot experiment was conducted to evaluate impact properties, microbial community dynamics, removal efficiency. The results showed that application increased carbon content, enhanced enzyme activities (e.g., urease), reshaped structure compared with conventional fertilization. Co-occurrence network analysis further complexity networks, leading closer species interactions favoring aggregation proliferation microorganisms mediate degradation Sphingomonas). As result, extinction accelerated, amount residue at harvesting stage reduced by 35.81–57.06% relative This study provides theoretical foundation for soils, highlighting its improve health sustainability context use.

Язык: Английский

Процитировано

0

The ecotoxicological effects of thiamethoxam on photosynthesis and nitrogen fixation in cyanobacteria: From inhibition to recovery DOI
Jiale Zhang, Shiye Zhu, Xiyan Xu

и другие.

Journal of Environmental Sciences, Год журнала: 2025, Номер unknown

Опубликована: Июнь 1, 2025

Язык: Английский

Процитировано

0

Effects of Stocking Density of Filter-Feeding Fishes on Water Quality and Bacterial Community in Rice–Crayfish Polyculture System DOI Open Access
Yuanyuan Zhang,

Liangjie Zhao,

Jiaoyang Duan

и другие.

Water, Год журнала: 2024, Номер 16(16), С. 2296 - 2296

Опубликована: Авг. 14, 2024

To evaluate the effects of filter-feeding fishes on water quality and bacterial community in rice–crayfish coculture system, four different stocking densities bighead carp (0, 500, 1000, 1500 ind./200 m2) were set up systems. Water samples systems collected biweekly to detect dissolved oxygen (DO), temperature (T), potential Hydrogen (pH), ammonia nitrogen (NH4+-N), nitrite (NO2−-N), nitrate (NO3−-N), total (TN), phosphorus (TP), Chlorophyll-a (Chl-a); was analyzed simultaneously, then correlation between microorganisms studied. The results showed that concentrations TN, TP, NO2−-N, NH4+-N decreased while DO NO3−-N increased along with breeding process. NO3−-N, important environmental factors affecting structure (p < 0.05). Bighead had an impact diversity, richness, evenness communities dominant bacteria density groups Proteobacteria, Actinomycetes, Bacteroidetes, Cyanobacteria. abundance Bacteroidea but reduced Cyanobacteria, Proteobacteria. introduction promoted conversion phosphorus, reducing risk cyanobacterial blooms. Group 1000 m2 exhibited best effect removal from body.

Язык: Английский

Процитировано

2