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Isotope niche dimension and trophic overlap between bigheaded carps and native filter-feeding fish in the lower Missouri River, USA

). Author Contributions Conceptualization: Jianzhu Wang, Duane Chapman, Binhe Gu. Data curation: Duane Chapman, Jun Xu, Yang Wang, Binhe Gu. Formal analysis: Jun Xu. Funding acquisition: Duane Chapman ... , Binhe Gu. Investigation: Duane Chapman. 10 / 13 Methodology: Yang Wang. Project administration: Duane Chapman. Visualization: Jun Xu. Writing ± original draft: Jianzhu Wang, Binhe Gu. Writing

Carbon pool trends and dynamics within a subtropical peatland during long-term restoration

Introduction The Florida Everglades has undergone significant ecological change spanning the continuum of disturbance to restoration. While the restoration effort is not complete and the ecosystem continues to experience short duration perturbations, a better understanding of long-term C dynamics of the Everglades is needed to facilitate new restoration efforts. This study...

Initial response of fish trophic niche to hydrological alteration in the upstream of Three Gorges Dam

Introduction Damming is one of the dramatic impacts to river food webs due to habitat fragmentation and changes in the hydrological regimes. The world’s largest dam, the Three Gorges Dam (TGD), has been constructed in the middle of Yangtze River since 2003. The objective of this study was to understand the effects of altered hydrological regime on the trophic structure of fish...

China’s Coastal Wetlands: Understanding Environmental Changes and Human Impacts for Management and Conservation

Anthropogenic activities are substantially changing coastal wetland ecosystems globally. In developing countries such as China, a number of anthropogenic factors associated with rapid population growth and economic development threaten coastal wetlands. In China, notably, coastal wetlands have been increasingly lost to reclamations that are widely adopted to meet the increasing...

Terrestrial Contributions to the Aquatic Food Web in the Middle Yangtze River

Understanding the carbon sources supporting aquatic consumers in large rivers is essential for the protection of ecological integrity and for wildlife management. The relative importance of terrestrial and algal carbon to the aquatic food webs is still under intensive debate. The Yangtze River is the largest river in China and the third longest river in the world. The completion...

Stable isotope enrichment in muscle, liver, and whole fish tissues of brown-marbled groupers (Epinephelus fuscoguttatus)

Introduction The purpose of this study was to assess enrichments in stable carbon and nitrogen isotopes (δ13C and δ15N) in brown-marbled groupers (Epinephelus fuscoguttatus), a marine fish that has been widely used in aquaculture. Stable isotope analysis has been used to evaluate dietary sources and the trophic position of fish. There is the need to better understand the pattern...

Temporal and spatial variations in phytoplankton carbon isotopes in a polymictic subtropical lake

Binhe Gu 0 Claire L.Schelske 0 0 Department of Fisheries and Aquatic Sciences, University of Florida , 7922 NW 71st Street, Gainesville, FL 32653 , USA Stable carbon isotopes (513C) were determined

Uptake of dissolved nitrogen by phytoplankton in a eutrophic subtropical lake

Uptake rates for ananonium, nitrate, urea and dinitrogen by phytoplankton in Lake Okeechobee ranged from 0.58 to 1.52 μmol 1−1 h−1 among four representative stations during a short-term study period. Ammonium accounted for 53% of the uptake rates, followed by nitrate (19%), urea (16%) and dinitrogen (12%). Half-saturation constants for nitrogen (N) uptake ranged from 8.70 μmol 1...