Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Alain Belaud"'
Autor:
Pierre Lavandier, Alain Belaud, Régis Céréghino, Puy Lim, Thierry Lagarrigue, Rémi Chappaz, Patricia Reyes-Marchant
Publikováno v:
Aquatic Living Resources. 15:129-137
The abundance of prey ingested by brown trout ( Salmo trutta ) were compared with the abundance of drifting invertebrates in a mountain stream managed by hydropeaking, upstream (site A) and downstream (site B) of a hydroelectric power plant. During p
Publikováno v:
Ecological Modelling. 146:131-142
The aim of our study was to compare the microhabitat used by three fish species: brown trout ( Salmo trutta L.), European minnow ( Phoxinus phoxinus L.) and stone loach ( Barbatula barbatula L.), in natural and regulated flows of a section of the riv
Publikováno v:
Fundamental and Applied Limnology. 152:567-582
The effects of both temperature and flow regulation on the longitudinal evolution of the fish community were studied along a section of the River Garonne. The section included an upstream zone dominated by the taxonomic order Salmoniforms, and a down
Publikováno v:
Bulletin Français de la Pêche et de la Pisciculture. :573-594
La population de truite commune de la Neste d'Oueil, sous - affluent pyreneen de la Garonne, a ete suivie entre juillet 1996 et mars 1999. Durant 2 ans et 9 mois, 9 echantillonnages ont eu lieu en fevrier-mars, juillet et septembre sur 2 secteurs de
Publikováno v:
Scopus-Elsevier
Many French rivers are concerned by hydropeaking management. Sudden flow variations cause disturbances of the aquatic environment, fish habitat being particularly affected. The abundance of the most sensitive life stages of brown trout (age groups 0+
Publikováno v:
Freshwater Biology. 38:237-246
1. Discriminant factorial analysis (DFA) and artificial neural networks (ANN) were used to develop models of presence/absence for three species of small-bodied fish (minnow, Phoxinus phoxinus, gudgeon, Gobio gobio, and stone loach, Barbatula barbatul
Publikováno v:
Hydrobiologia. 337:1-9
Neural networks and multiple linear regression models of the abundance of brown trout (Salmo trutta L.) on the mesohabitat scale were developed from combinations of physical habitat variables in 220 channel morphodynamic units (pools, riffles, runs,
Publikováno v:
Regulated Rivers: Research & Management. 12:563-573
Publikováno v:
Aquatic Living Resources. 9:23-29
Neural networks provide a "black box" model for explaining and predicting trout abundance with 8 environmental variables. This work investigates the specific effect of each variable, by inputting fictitious configurations of explanatory variables and
Publikováno v:
Regulated Rivers: Research & Management. 10:347-361
The effects of 16 hydroelectric power plants, in operation for 75 years, were studied in 15 non-polluted Salmonid streams in the Pyrenean mountains. The populations of brown trout (Salmo trutta L.) and the physical habitat characteristics were compar