The introduction of invasive species represents a major threat to the integrity of stream-dwelling fish populations worldwide, and this issue is receiving increasing attention from scientists, in particular because of potential impact on biodiversity. In this study, we analysed the dispersal of an exotic loricariid fish the red fin dwarf pleco (Parotocinclus maculicauda) in a stream of the Atla...

Spawning salmon create patches of disturbance through redd digging which can reduce macroinvertebrate abundance and biomass in spawning habitat. We asked whether displaced invertebrates use non-spawning habitats as refugia in streams. Our study explored how the spatial and temporal distribution of macroinvertebrates changed during a pink salmon (Oncorhynchus gorbuscha) spawning run and compared...

The effects of density on territory size and population regulation in juvenile rainbow trout, Oncorhynchus mykiss Jacquelyn Lee Ann Wood Despite a wealth of research on territoriality and population regulation in stream dwelling salmonids, most studies have focused on manipulations of food abundance alone, or else have simultaneously manipulated space and food abundance, but used population den...

—We used regression quantiles to model potentially limiting relationships between the standing crop of cutthroat trout Oncorhynchus clarki and measures of stream channel morphology. Regression quantile models indicated that variation in fish density was inversely related to the width:depth ratio of streams but not to stream width or depth alone. The spatial and temporal stability of model predi...

This paper presents a novel high speed clustering scheme for high-dimensional data stream. Data stream clustering has gained importance in different applications, for example, network monitoring, intrusion detection, and real-time sensing. High dimensional stream data is inherently more complex when used for clustering because the evolving nature of the stream data and high dimensionality make ...

Clustering evolving data streams is important to be performed in a limited time with a reasonable quality. The existing micro clustering based methods do not consider the distribution of data points inside the micro cluster. We propose LeaDen-Stream (Leader Density-based clustering algorithm over evolving data Stream

A two-dimensional hydraulic model River2D was used to investigate the significance of flow complexity on habitat preferences of brook trout Salvelinus fontinalis) in the high-gradient Staunton River in Shenandoah National Park, Virginia. Two 100-m reaches were modeled where detailed brook trout surveys 10–30-m resolution have been conducted annually since 1997. Spatial hydraulic complexity metr...

DOMINIQUE GAILLARD,1 JOCELYNE HINNRASKY,1 SYLVIE COSCOY,2 PAUL HOFMAN,3 MICHAEL A. MATTHAY,4 EDITH PUCHELLE,1 AND PASCAL BARBRY2,4 1Institut National de la Santé et de la Recherche Médicale Unité 514, Institut Fédératif de Recherches 53, Centre Hospitalier Universitaire Maison Blanche, 51092 Reims Cedex; 2Institut de Pharmacologie Moléculaire et Cellulaire, Centre National de la Recherche Scien...