Results 21 to 30 of about 1,798 (198)
Diel vertical migration: modelling light-mediated mechanisms [PDF]
Light is generally regarded as the most likely cue used by zooplankton to regulate their vertical movements through the water column. However, the way in which light is used by zooplankton as a cue is not well understood. In this paper we present a mathematical model of diel vertical migration which produces vertical distributions of zooplankton that ...
Richards, SA, Possingham, HP, Noye, J
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In this Quick Guide, Brierley provides a brief overview of a pervasive aspect of aquatic ecosystems, the daily movement of organisms up and down the water column.
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Circadian Clock Involvement in Zooplankton Diel Vertical Migration [PDF]
Biological clocks are a ubiquitous ancient and adaptive mechanism enabling organisms to anticipate environmental cycles and to regulate behavioral and physiological processes accordingly [1]. Although terrestrial circadian clocks are well understood, knowledge of clocks in marine organisms is still very limited [2-5].
Häfker, N Sören +5 more
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Extensive oceanic mesopelagic habitat use of a migratory continental shark species
The identification of movement and behaviour patterns, as well as inter- and intra-population connectivity is crucial in order to implement effective and functional management and conservation measures for threatened migratory species such as tope ...
Matthias Schaber +7 more
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Vertical Distribution Patterns of Cephalopods in the Northern Gulf of Mexico
Cephalopods are important in midwater ecosystems of the Gulf of Mexico (GOM) as both predator and prey. Vertical distribution and migration patterns (both diel and ontogenic) are not known for the majority of deep-water cephalopods.
Heather Judkins, Michael Vecchione
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Fine-scale vertical structure of sound-scattering layers over an east border upwelling system and its relationship to pelagic habitat characteristics [PDF]
Understanding the relationship between sound-scattering layers (SSLs) and pelagic habitat characteristics is a substantial step to apprehend ecosystem dynamics. SSLs are detected on echo sounders representing aggregated marine pelagic organisms.
N. Diogoul +13 more
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Background Vertical distribution of zooplankton is an important biological factor that can modulate zooplankton transport, dispersal, and survival in the ocean.
Jessica Bonicelli +8 more
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We conducted a multi-year acoustic telemetry study of lake trout (Salvelinus namaycush (Walbaum, 1792)) in a small subarctic lake to investigate depth and temperature occupancy, and vertical activity across seasons (summer, fall, and winter), diel ...
Colin P. Gallagher +2 more
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The Demographic Benefits of Diel Vertical Migration by Zooplankton [PDF]
Three types of diel vertical migration behavior were expressed within a fjord population of the calanoid copepod Pseudocalanus newmani: (1) reverse migration (nocturnal descent), (2) normal migration (nocturnal ascent), and (3) no detectable migration. Reverse migration by P. newmani occurred in all three study years, but only at a deep (185 m) station
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Aquatic organisms exhibit a variety of diel changes in vertical movement that are investigable through the use of biotelemetry. While certain species do not change their movements between day and night, others exhibit diel vertical migration (DVM) or a ...
M. C. Arostegui +2 more
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