Results 201 to 210 of about 16,008 (241)
Circadian Clock Involvement in Zooplankton Diel Vertical Migration [PDF]
Current Biology, 2017 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].
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A model of the diel vertical migration of zooplankton based on euphausiids
Journal of Marine Research, 1991A detailed model of the diel vertical migration of euphausiids, particularly that of Meganyctiphanes norvegica adults in the northwestern Mediterranean Sea, is presented. It simulates the temporal and vertical variation of the euphausiid biomass over the diel cycle in the water column from 0 to 700 m depth.
Andersen, V, Nival, P
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Diel vertical migration of sablefish (Anoplopoma fimbria)
Fisheries Oceanography, 2019AbstractTo investigate their diel vertical migration (DVM), 599 sablefish (Anoplopoma fimbria) were implanted with electronic archival tags in the Gulf of Alaska, Aleutian Islands, and the eastern Bering Sea. Of these tags, 98 were recovered with usable depth data (7,852,773 recordings representing 81,233 days) that we used to identify DVM and to ...
Michael F. Sigler, Katy B. Echave
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Control Mechanisms of Diel Vertical Migration: Theoretical Assumptions
Journal of Theoretical Biology, 2001We explore control mechanisms underlying the vertical migration of zooplankton in the water column under the predator-avoidance hypothesis. Two groups of assumptions in which the organisms are assumed to migrate vertically in order to minimize realized or effective predation pressure (type-I) and to minimize changes in realized or effective predation ...
B P, Han, M, Straskraba
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The impact of diel vertical migration of Daphnia on phytoplankton dynamics
Oecologia, 2005Diel vertical migration (DVM) of large zooplankton is a very common phenomenon in the pelagic zone of lakes and oceans. Although the underlying mechanisms of DVM are well understood, we lack experimental studies on the consequences of this behaviour for the zooplankton's food resource-the phytoplankton.
Reichwaldt, E., Stibor, H.
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Ciliate vertical distribution and diel vertical migration in a eutrophic lake
Fundamental and Applied Limnology, 2008The diel vertical migration (DVM) behaviour of a heterotrophic ciliate community was monitored in a eutrophic gravel pit lake located near the lower Rhine in Germany. The purpose of the study was to determine whether DVM in ciliates occurred, if this behaviour was species-specific, and to examine factors (predator avoidance, location of prey ...
Marcelo Rossberg, Stephen A. Wickham
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Partial diel vertical migrations in pelagic fish
Journal of Animal Ecology, 20111. Field studies on diel vertical migration (DVM) usually report uniform behaviour with population-wide ascents and descents during crepuscular periods. This contrasts partial seasonal migrations of many animal populations, where individuals choose either the resident or the migrant strategy depending on population density, feeding opportunity and ...
Thomas Mehner, Peter Kasprzak
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Diel vertical migration of mesozooplankton in the northern Yellow Sea
Journal of Oceanology and Limnology, 2021The Yellow Sea Cold Water Mass (YSCWM), one of the most vital hydrological features of the Yellow Sea, causes a seasonal thermocline from spring to autumn. The diel vertical migration (DVM) of zooplankton is crucial to structural pelagic communities and food webs, and its patterns can be affected by thermocline depth and strength.
Ruping Ge +4 more
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Diel vertical migration of fish in a Neotropical reservoir
Marine and Freshwater Research, 2016Vertical distribution of fish was studied immediately upstream of the Três Marias hydroelectric power plant dam from December 2010 to December 2011. Eighteen field trips were conducted for hydroacoustic sampling over a period of 24 h each time, with 6-h diel sampling intervals within each of the 18 sample dates.
Prado, I. G., Pompeu, P. S.
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Diel vertical migrations of bathypelagic perch fry
Journal of Fish Biology, 2005The behaviour of young‐of‐the‐year (YOY) perchPerca fluviatilisas a dominant species in the assemblage of fry in the pelagic of Slapy Reservoir (Czech Republic), was studied during late May and mid‐June 2002 using acoustic methods and complementary net catches.
M. Čech +4 more
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