Results 61 to 70 of about 1,943,084 (299)

Hepatic morphology and serum biochemical profile according to dry and rainy seasons in Pygocentrus nattereri (Characiformes: Serrasalmidae)

The Anatomical Record, EarlyView.
Abstract This study investigated the physiological and morphological adaptations of the liver of the carnivorous fish Pygocentrus nattereri (piranha) in response to seasonal variations (dry and rainy seasons) in the Brazilian Pantanal. The objective was to describe how the liver, a central organ in metabolic regulation, responds to environmental ...
Maria Eduarda Corona Garcia, Sandriely F. Marcondes, Mayara S. Siqueira, Taynara R. F. Leão, Robson A. Rodrigues, Karine N. N. Farias, André L. N. Silva, Karin Virgínia Kuibida, Lilian Franco‐Belussi, Carlos E. Fernandes   +9 more
wiley   +1 more source

HEC-ResSim storage-yield analysis

, 2019
Hydrologic Engineering Center HEC-ResSim Storage-Yield Analysis Water Supply Workshop Savannah, GA June 2, 2011 Hydrologic Engineering Center Outline HEC-ResSim Program Intro HEC-ResSim and Storage-Yield Analysis Existing Capabilities Ongoing ...
Hydrologic Engineering Center (U.S.)
core  

Understanding predictive uncertainty in hydrologic modeling: The challenge of identifying input and structural errors [PDF]

, 2009
Meaningful quantification of data and structural uncertainties in conceptual rainfall-runoff modeling is a major scientific and engineering challenge. This paper focuses on the total predictive uncertainty and its decomposition into input and structural ...
Thyer, M., Kavetski, D., Renard, B., Renard, Benjamin, Franks, S., Kuczera, G.   +5 more
core   +1 more source

Dental anomalies in Pleistocene African hippopotamuses from Olduvai Bed II

The Anatomical Record, EarlyView.
Abstract Hippopotamuses are key palaeoenvironmental indicators in African Pleistocene ecosystems due to their ecological dependence on permanent water bodies and their frequent representation in the fossil record. This study examines dental anomalies in Hippopotamus cf. gorgops from several localities in Bed II of Olduvai Gorge (Tanzania), dated to ca.
Darío Fidalgo, Faysal Bibi, Jean‐Renaud Boisserie, Jackson K. Njau, Ignacio de la Torre   +4 more
wiley   +1 more source

Hydrodynamic Response of Channel Flow Confluence to the Tributary Floodplain Topography

Water Resources Research
River confluences with a compound‐channel tributary are common in large river networks, for example, the Yangtze River basin and the Amazon basin. They affect the confluence hydrodynamics, nutrient depletion and fish migration in the network, due to the ...
Guanghui Yan, Saiyu Yuan, Hongwu Tang, Dong Xu, Mengyang Liu, Colin Whittaker, Carlo Gualtieri   +6 more
doaj   +1 more source

Developmental morphology of claspers and clasper‐glands during maturation in Potamotrygon wallacei (Chondrichthyes: Potamotrygoninae)

The Anatomical Record, EarlyView.
Abstract The claspers are the copulatory organs in male elasmobranchs, responsible for directing the semen into the female cloaca (C). However, the microscopic morphology of the claspers remains poorly understood. This study describes the morphology of the claspers and clasper glands (CGs) of cururu stingray (Potamotrygon wallacei) at different ...
Matheus Samuel Cunha Braga, Grazyelle Sebrenski da Silva, Maria Inês Braga de Oliveira, Jaydione Luiz Marcon, Ruben Dario Morales Gamba   +4 more
wiley   +1 more source

Sediment mercury and methylmercury dynamics during reservoir operation

Scientific Reports
Mercury (Hg) and methylmercury (MeHg) are highly neurotoxic substances, and reservoirs play a critical role in Hg storage while providing geochemical environments conducive to MeHg production.
Shuai Liu, Lei Liao, Jing Liu, Xianglong Wei   +3 more
doaj   +1 more source

A Systemic Model for Understanding Business Interactions With Biodiversity and Ecosystems

Business Strategy and the Environment, EarlyView.
ABSTRACT Biodiversity loss and ecosystem degradation represent critical threats to human well‐being and economic resilience, challenging businesses to understand and manage their interdependence with natural systems. This study develops a systemic framework—the BioModel—that elucidates the reciprocal relationship between businesses, biodiversity, and ...
Lino Cinquini, Giacomo Pigatto, Andrea Tenucci   +2 more
wiley   +1 more source

Improving multi-factor river water quality prediction using deep learning and large language models with retrieval-augmented generation

Ecological Indicators
Water quality prediction is critical to protect river ecosystems and sustain effective water management under increasing urbanization pressures. Current methods rely on a limited number of influencing factors and lack interpretability, which presents ...
Zuxiang Situ, Qiyang Ling, Hongwu Tang, Huiming Zhang, Hong Chen, Shengqi Lyu, Qihua Ran, Xiangju Cheng   +7 more
doaj   +1 more source

Comparative experimental observations and hydrological response in representative basins of Eastern China

Shui kexue jinzhan, 2019
To explore the mechanism of changes in the hydrologic cycle under the changing environment in eastern coastal areas of China,based on intensive observations from the hydrological station network and construction of experimental watersheds,we analyzed the
WANG Qiang, XU Youpeng, WANG Yuefeng, WANG Jie, ZHOU Caiyu, FU Weijun, ZHAO Yan   +6 more
doaj   +1 more source