Results 21 to 30 of about 1,798 (198)

Diel vertical migration: modelling light-mediated mechanisms [PDF]

open access: yesJournal of Plankton Research, 1996
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
openaire   +4 more sources

Diel vertical migration [PDF]

open access: yesCurrent Biology, 2014
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.
openaire   +2 more sources

Circadian Clock Involvement in Zooplankton Diel Vertical Migration [PDF]

open access: yesCurrent 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].
Häfker, N Sören   +5 more
openaire   +3 more sources

Extensive oceanic mesopelagic habitat use of a migratory continental shark species

open access: yesScientific Reports, 2022
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
doaj   +1 more source

Vertical Distribution Patterns of Cephalopods in the Northern Gulf of Mexico

open access: yesFrontiers in Marine Science, 2020
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
doaj   +1 more source

Fine-scale vertical structure of sound-scattering layers over an east border upwelling system and its relationship to pelagic habitat characteristics [PDF]

open access: yesOcean Science, 2020
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
doaj   +1 more source

Diel variability in the vertical distribution of coastal barnacle larvae in the Bay of Cartagena, Chile

open access: yesRevista Chilena de Historia Natural, 2023
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
doaj   +1 more source

Seasonal depth and temperature use, and diel movements of lake trout (Salvelinus namaycush) in a subarctic lake

open access: yesArctic Science, 2019
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
doaj   +1 more source

The Demographic Benefits of Diel Vertical Migration by Zooplankton [PDF]

open access: yesEcological Monographs, 1990
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
openaire   +3 more sources

Interpreting vertical movement behavior with holistic examination of depth distribution: a novel method reveals cryptic diel activity patterns of Chinook salmon in the Salish Sea

open access: yesAnimal Biotelemetry, 2017
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
doaj   +1 more source

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