Results 61 to 70 of about 15,856 (229)

Dissipation Rate of Turbulent Kinetic Energy in Diel Vertical Migrations: Comparison of ANSYS Fluent Model to Measurements [PDF]

, 2015
Recent studies suggest that diel vertical migrations of zooplankton may have an impact on ocean mixing, though details are not completely clear. A strong sound scattering layer of zooplankton undergoing diel vertical migrations was observed in Saanich ...
Dean, Cayla Whitney, Frank, Tamara M., Hirons, Amy, Soloviev, Alexander, Wood, J. D.   +4 more
core   +1 more source

Alpine ungulates adjust diel activity to the natural return of wolves amid anthropogenic pressures

Ecography, EarlyView.
As wolves recolonise their historical range across Europe, ungulates face predation once more – but in landscapes profoundly altered by human activity. This shift raises crucial questions about their capacity to express adaptive antipredator behaviours.
Charlotte Vanderlocht, Valerio Donini, Andrea Corradini, Simone Dal Farra, Benjamin Robira, Andrea Gazzola, Giorgia Galeotti, Laura Limonciello, Noemi Squillaci, Maël Van Dam, Giada Zeni, Marta Gandolfi, Elisa Iacona, Lucrezia Lorenzetti, Matteo Nava, Federico Ossi, Heidi C. Hauffe, Francesco Ferretti, Luca Corlatti, Luca Pedrotti, Francesca Cagnacci   +20 more
wiley   +1 more source

Environmental DNA for Aquatic Monitoring: Impact of Diel Vertical Migration

Environmental DNA
There is increasing interest in using eDNA for deriving abundance indices for biodiversity monitoring and in support of fisheries management. However, eDNA concentrations are affected by animal behavior, such as diel vertical migration, which has ...
Verena M. Trenkel, Mohamed Y. Zanni, Daniela Sint, Robin Faillettaz, Pascal Lorance, Camille Albouy   +5 more
doaj   +1 more source

Effects of diel vertical migration on ephippia production in Daphnia

Journal of Limnology, 2004
Fish presence in experimentally simulated temperature conditions (limno-towers) led to diel vertical migration and resulted in a decrease of ephippia production in Daphnia pulicaria.
Victor ALEKSEEV
doaj   +1 more source

Migratory Zooplankton Excreta and Its Influence on Prokaryotic Communities

Frontiers in Marine Science, 2020
Particulate organic matter (POM) (fecal pellets) from zooplankton has been demonstrated to be an important nutrient source for the pelagic prokaryotic community.
Amy E. Maas, Shuting Liu, Luis M. Bolaños, Brittany Widner, Rachel Parsons, Elizabeth B. Kujawinski, Leocadio Blanco-Bercial, Craig A. Carlson   +7 more
doaj   +1 more source

Vertical Fine-Scale Distribution of Calanus sinicus in the Yellow Sea Cold Water Mass During the Over-Summering Process

Frontiers in Marine Science, 2021
Calanus sinicus, a temperate copepod with a lethal temperature >27°C, is one of the key species in Chinese coastal marine ecosystems. The C. sinicus population increases in spring and declines in early summer annually due to increasing water ...
Jun Pan, Jun Pan, Jun Pan, Fangping Cheng, Fangping Cheng, Fei Yu, Fei Yu, Fei Yu, Fei Yu, Fei Yu, Yongqiang Shi, Fan Sun, Fan Sun, Fan Sun, Guangcheng Si, Guangcheng Si, Guangcheng Si, Guangcheng Si, Chuanjie Wei, Chuanjie Wei, Chuanjie Wei, Xinyuan Diao, Xinyuan Diao, Xinyuan Diao, Yongfang Zhao, Yongfang Zhao, Yongfang Zhao   +26 more
doaj   +1 more source

Relationships between acoustic scattering layers and ocean stratification: An acoustic approach to estimate mixed layer depth

Limnology and Oceanography: Methods, EarlyView.
Abstract Ocean stratification, measured as mixed layer depth (MLD), is an important feature that influences many processes in the ocean; for example, by mediating the fluxes of momentum, heat and crucially key gases such as CO2 and oxygen from the atmosphere into the water column and vice versa. The conventional methods to measure stratification (e.g.,
Fabio Campanella, Jeroen van der Kooij, Liam Fernand   +2 more
wiley   +1 more source

Diel variation in vertical distribution of an offshore ichthyoplankton community off the Oregon coast [PDF]

, 2007
We examined the diel ver-tical distribution, concentration, and community structure of ichthyoplank-ton from a single station 69 km off the central Oregon coast in the northeast Pacific Ocean. The 74 depth-stratified samples yielded 1571 fish larvae from
Auth, Toby D., Brodeur, Richard D., Fisher, Kathleen M.   +2 more
core  

Kairomones: Finding the fish factor

, 2019
The water flea Daphnia moves to deeper waters to avoid predators when it detects a chemical produced by ...
Berry, Frenkel, Hahn, Hofmann, Lampert, Pohnert, Selander, Van Donk, Weiss, Yasumoto   +9 more
core   +1 more source

Programmed unmanned aerial vehicles show great potential for monitoring marine megafauna in specific areas of interest

Remote Sensing in Ecology and Conservation, EarlyView.
Targeted conservation measures are contingent on robust knowledge of spatio‐temporal animal distribution in areas of interest. We explore unmanned aerial vehicle (UAV) transect monitoring as a novel method for standardized digital aerial surveys of marine megafauna by investigating the fine‐resolution spatio‐temporal distribution of harbour porpoises ...
Dinah Hartmann, Valdemar Palmqvist, Johanna Stedt   +2 more
wiley   +1 more source