Search Results - "Leander, Johan"

Pharmaceutical pollution disrupts the behavior and predator-prey interactions of two widespread aquatic insects by Bose, Aneesh P.H., McCallum, Erin S., Avramović, Mladen, Bertram, Michael G., Blom, Eva-Lotta, Cerveny, Daniel, Grønlund, Sara N., Leander, Johan, Lundberg, Petter, Martin, Jake M., Michelangeli, Marcus, Persson, Lo, Brodin, Tomas

“…Pharmaceutical pollution represents a rapidly growing threat to ecosystems worldwide. Drugs are now commonly detected in the tissues of wildlife and have the…”
Get full text

Guiding downstream migrating Atlantic salmon Salmo salar and brown trout Salmo trutta of different life stages in a large river using bubbles by Leander, Johan, Hellström, Gustav

“…Salmonid repeat spawners are precious individuals for wild populations due to their high fecundity and previous spawning experience, making them important in…”
Get full text

Guiding downstream migrating Atlantic salmon (Salmo salar) and brown trout (Salmo trutta) of different life stages in a large river using bubbles by Leander, Johan, Hellström, Gustav, Nordin, Jonathan, Jonsson, Micael, Klaminder, Jonatan

“…Salmonid repeat spawners are precious individuals for wild populations due to their high fecundity and previous spawning experience, making them important in…”
Get full text

Less anxious salmon smolt become easy prey during downstream migration by Klaminder, Jonatan, Jonsson, Micael, Leander, Johan, Fahlman, Johan, Brodin, Tomas, Fick, Jerker, Hellström, Gustav

“…Hatchery-reared salmon smolt used for supplementary stocking often display poor migration behavior compared to wild smolt, which reduces the success of this…”
Get full text

Bubble barriers to guide downstream migrating Atlantic salmon (Salmo salar): An evaluation using acoustic telemetry by Leander, J., Klaminder, J., Hellström, G., Jonsson, M.

“…Structures for guiding fish around migration barriers are frequently used for maintaining connectivity in regulated riverine systems. However, for non-physical…”
Get full text

Environmentally relevant concentrations of the common anxiolytic pharmaceutical oxazepam do not have acute effect on spawning behavior in mature male Atlantic salmon (Salmo salar) parr by Hellström, Gustav, Brodin, Tomas, Jonsson, Micael, Olsen, Håkan, Leander, Johan, Fahlman, Johan, Fick, Jerker, Klaminder, Jonatan

“…Low concentrations of psychiatric drugs are commonly found in surface waters around the world, and their ability to alter behaviors in aquatic fauna has raised…”
Get full text

On the relation between the wavefront speed and the group velocity concept by Leander, Johan L.

“…The relation between the wavefront speed and the group velocity concept is studied in this work. The relationship between the more well-known velocity concept…”
Get full text

Wavefront and group velocity in relaxing and bubbly fluids by Leander, Johan L.

“…In this paper it is demonstrated that a theoretical model for wave propagation may indeed correspond to a well-posed transient problem although the group…”
Get full text

Studies of acoustic pulse propagation in relaxing and bubbly liquids by Leander, Johan L.

Get full text

A note on transient underwater bubble sound by Leander, Johan L.

“…This Letter considers scattered sound from transiently oscillating gas bubbles in liquids. The full transient problem including the finite duration of the…”
Get full text

On the eigenfrequency of a gas bubble in a liquid by Leander, Johan L.

“…This investigation concerns free linear gas bubble oscillations in liquids. Of prime interest is the eigenfrequency, and in particular its real part, here…”
Get full text

Sound propagation in dilute gas–liquid suspensions: Definition of the regime of noninteracting bubbles via scattering theory and the causality approach by Leander, Johan L.

“…In this letter sound propagation in gas–liquid suspensions from two different perspectives, i.e., scattering versus nonscattering theories, is examined. The…”
Get full text

Transient wave propagation through bubbly layers via the Foldy–Twersky integral equation by Leander, Johan L.

“…This work considers transient linear acoustic wave propagation through a layer of small gas bubbles in a liquid. The analysis is based on multiple scattering…”
Get full text

Comments on “Acoustic dispersion and attenuation in many spherical scatterer systems and the Kramers–Kronig relations” [J. Acoust. Soc. Am. 101 , 3299–3305 (1997)] by Leander, Johan L.

“…The aim of this Comment is to suggest some possible improvements and developments of the investigation by Zhen Ye [J. Acoust. Soc. Am. 101, 3299–3305 (1997)]…”
Get full text

Acoustic pulse propagation in Maxwell fluids by LEANDER, J. L

“…Transient linear acoustic wave propagation in fluids exhibiting Maxwell relaxation processes is investigated theoretically. The case of a single relaxation…”
Get full text

A note on acoustic pulse distortion in liquids exhibiting a continuous distribution of Maxwell relaxation processes by Leander, Johan L.

“…Acoustic pulse distortion in liquids exhibiting a continuous distribution of Maxwell relaxation processes is analyzed by means of linear systems theory. The…”
Get full text