Results 21 to 30 of about 232,209 (289)

Impact of Changing Concavity Indices on Channel Steepness and Divide Migration Metrics

Journal of Geophysical Research: Earth Surface, 2021
The concavity index, θ , describes how quickly river channel gradient declines downstream. It is used in calculations of normalized channel steepness index, ksn , a metric for comparing the relative steepness of channels with different drainage area.
B. Gailleton, S. Mudd, F. Clubb, S. Grieve, M. Hurst   +4 more
semanticscholar   +1 more source

Channel Migration of the Meandering River Fan: A Case Study of the Okavango Delta

Water, 2021
Okavango delta is a typical distributive fluvial system, which is composed of a series of sand island-river-swamp networks. River migration in the Okavango delta is analyzed by using satellite images from Google Earth and Alaska Satellite Facility (ASF).
Xuexin Yan, Jinliang Zhang, Yang Li, Longtao Sun   +3 more
semanticscholar   +1 more source

P-rex1 cooperates with PDGFRβ to drive cellular migration in 3D microenvironments [PDF]

, 2013
Expression of the Rac-guanine nucleotide exchange factor (RacGEF), P-Rex1 is a key determinant of progression to metastasis in a number of human cancers.
A Eriksson, A Eva, A Hall, A Malliri, AJ Ridley, AM Woodward, Andrew D. Campbell, Antonio Facchiano, Bradford W. Ozanne, CR Lindsay, CR Lindsay, D Hanahan, D Hanahan, F Michiels, FG Haj, FK Johansson, FK Johansson, FN van Leeuwen, G Bergers, H Gerhardt, HC Welch, Heidi C. Welch, J Qin, JC Montero, Jim C. Norman, JM Ebos, K Hill, K Uhlenbrock, KL Rossman, LA Scott, Lynn C. McGarry, M Paez-Ribes, MA Barber, MJ Hart, MS Sosa, OD Weiner, PT Hawkins, R Heuchel, RA Seifert, RF Hennigan, RJ Petrie, S Katzav, Samuel Lawn, U Rodeck, X Xian   +44 more
core   +6 more sources

Ecology of common bully (Gobiomorphus cotidianus) in the Tarawera and Rangitaiki rivers: isolation by inland distance or anthropogenic discharge? [PDF]

, 2009
Previous research has identified distinct genetic, life-history and reproductive differences between populations of common bully (Gobiomorphus cotidianus) upstream and downstream of a pulp and paper mill outfall on the Tarawera River in the Bay of Plenty,
Ahnelt H, Coombs S, Fuiman LA, Joy MK, Kelso JRM, Landman MJ, McDowall RM, Modgans J, Ovenden JR, Sprague JB, Swearer SE, Taylor JR   +11 more
core   +2 more sources

Migration pattern of silver eel (Anguilla anguilla, L.) in an obstructed river system. [PDF]

, 2008
The downstream migration of European silver eels in the River Frémur was examined to determine the potential effects of the numerous migration barriers that exist on waterways in western France.
Acou, Acou, Acou, Acou, Acou, Acou, Baisez, Behrmann-Godel, Berg, Boubée, Boubée, Boëtius, Budy, Chadwick, Congleton, Cullen, Deelder, Durif, Durif, Durif, Escofier, Euston, Feunteun, Feunteun, Feunteun, Feunteun, Ficke, Frost, Gosset, Hansen, Haraldstad, Haro, Haro, Holmgren, Hvidsten, Jonsson, Laffaille, Larinier, Lee, Legault, Lobon-Cervia, Lowe, Naismith, Olivereau, Pankhurst, Plumb, Robinet, Ryan, Schmidt, Sokal, Tesch, Todd, Travade, van den Thillart, van Ginneken, van Ginneken, van Ginneken, Vøllestad, Vøllestad, Watene, White, Wickström, Zaugg   +62 more
core   +2 more sources

Remotely sensed mid-channel bar dynamics in downstream of the Three Gorges Dam, China [PDF]

, 2020
The downstream reach of the Three Gorges Dam (TGD) along the Yangtze River (1560 km) hosts numerous mid-channel bars (MCBs). MCBs dynamics are crucial to the river’s hydrological processes and local ecological function.
Shao, Guofan, Wen, Zhaofei, Wu, Shengjun, Yang, Hong, Zhang, Ce   +4 more
core   +1 more source

Towards a standardized characterization of the potentially migrating silver European eel (Anguilla anguilla L.) [PDF]

, 2005
We defined a standardized method for discriminating candidate silver eels that may undergo catadromous migration in the following season from the sedentary fraction of a population.
Acou, Anthony, Boury, Pauline, Crivelli, Alain Jean, Feunteun, Eric, Laffaille, Pascal   +4 more
core   +3 more sources

European eel (Anguilla anguilla): prediction of spawner escapement from continental population parameters [PDF]

, 2000
This paper describes the assessment of silver European eel (Anguilla anguilla) escapement based on a “sedentary” population fraction analysis in a 60-km2 watershed of northern Brittany (France).
Acou, Anthony, Feunteun, Eric, Laffaille, Pascal, Legault, Antoine   +3 more
core   +4 more sources

Assessing the freshwater distribution of yellow eel [PDF]

, 2008
In the global context of the decline in wild species, modeling the distribution of populations is a crucial aspect of ecological management. This can be a major challenge, especially for species, such as the European eel, that have complex life cycles ...
Laffaille, Pascal, Lasne, Emilien
core   +6 more sources

River Behavior and Morphological Analysis of a Meandering Channel in the Ganga River System, India [PDF]

Journal of Hydraulic Structures
The Rapti River and its tributaries exhibit a predominantly meandering morphology, marked by annual spatial-and-temporal-variations in bend geometry and bankline position.
Kuldeep Pareta, Upasana Pareta
doaj   +1 more source