搜索结果: 1-14 共查到“海洋生物学 migration”相关记录14条 . 查询时间(0.171 秒)
Arctic sea ice loss impacts beluga whale migration
Arctic sea ice loss beluga whale migration
2017/2/15
The annual migration of some beluga whales in Alaska is altered by sea ice changes in the Arctic, while other belugas do not appear to be affected.A new study led by the University of Washin...
Diel and lunar cycles of vertical migration extending to below 1000 m in the ocean and the vertical connectivity of depth-tiered populations
Diel and lunar cycles vertical migration extending below 1000 m the ocean the vertical connectivity depth-tiered populations
2014/4/2
We measured diel migration with 11 acoustic Doppler current meter profilers and consistently found diel and lunar cycles of vertical migration from 250 m down to the bathypelagic (> 1000 m). These mea...
Toward a more comprehensive theory of zooplankton diel vertical migration: Integrating ultraviolet radiation and water transparency into the biotic paradigm
comprehensive theory zooplankton diel vertical migration Integrating ultraviolet radiation water transparency biotic paradigm
2014/4/4
The current prevailing theory of diel vertical migration (DVM) of zooplankton is focused largely on two biotic drivers: food and predation. Yet recent evidence suggests that abiotic drivers such as da...
Survival probability of larval sprat in response to decadal changes in diel vertical migration behavior and prey abundance in the Baltic Sea
Survival probability of larval sprat decadal changes in diel vertical migration behavior prey abundance Baltic Sea
2014/4/17
We employed a coupled three-dimensional biophysical model to explore long-term inter- and intra-annual variability in the survival of sprat larvae in the Bornholm Basin, a major sprat spawning area in...
Zooplankton vertical migration and plasticity of pigmentation arising from simultaneous UV and predation threats
Zooplankton vertical migration plasticity of pigmentation arising simultaneous UV predation threats
2014/4/17
We assessed how zooplankton (copepods) handle the simultaneous threats of predators and ultraviolet (UV) radiation and whether they respond with changes in pigmentation, vertical migration, or both. W...
Role of oxidative stress in seasonal and daily vertical migration of three krill species in the Gulf of California
Role of oxidative stress seasonal
2014/4/17
Vertical distribution and abundance of three numerically dominant krill species (Nyctiphanes simplex,
Nematoscelis difficilis, and Euphausia eximia) were surveyed in the Gulf of California to underst...
Upward phosphorus transport by Daphnia diel vertical migration
Daphnia diel vertical migration phosphorus
2014/4/16
In many lakes, zooplankton show a distinct diel vertical migration (DVM) behavior, especially during periods
of stratification. Excretion products of these zooplankton could potentially cause an upwa...
The spatial dynamics of vertical migration by Microcystis aeruginosa in a eutrophic shallow lake: A case study using high spatial resolution time-series airborne remote sensing
The spatial dynamics of vertical migration Microcystis aeruginosa in a eutrophic shallow lake A case study using high spatial resolution time-series airborne remote sensing
2014/4/21
Time-series airborne remote sensing was used to monitor diurnal changes in the spatial distribution of a bloom of the potentially toxic cyanobacterium Microcystis aeruginosa in the shallow eutrophic w...
Diel periodicity in both sei whale vocalization rates and the vertical migration of their copepod prey observed from ocean gliders
Diel periodicity both sei whale vocalization rates the vertical migration their copepod prey observed ocean gliders
2014/5/16
The daily activity cycles of marine predators may be dictated in large part by the timing of prey availability. For example, recent studies have observed diel periodicity in baleen whale vocalization ...
Diel vertical migration of individual jellyfish (Periphylla periphylla)
Diel vertical migration individual jellyfish
2014/4/22
Vertical migration of the mesopelagic jellyfish Periphylla periphylla (Scyphozoa: Coronatae) was studied by use of hull-mounted and submerged echosounders in a ~440 m deep Norwegian fjord. The researc...
The effects of temperature and predator-prey interactions on the migration behavior and vertical distribution of Mysis relicta
temperature predator-prey migration behavior vertical distribution Mysis relicta
2014/4/22
The extent to which temperature, temperature gradients, predator smell, and prey availability influence the migratory behaviors and vertical distribution of the opossum shrimp, Mysis relicta, was expl...
Consequences of fish predation, migration, and juvenile ontogeny on zooplankton spring dynamics
Consequences of fish predation migration juvenile ontogeny zooplankton spring dynamics
2014/4/23
In order to disentangle if and when resource supply and adult and young-of-the-year (0+) fish predation affect zooplankton dynamics during spring, we monitored zooplankton during three consecutive yea...
Effect of net avoidance on estimates of diel vertical migration
net avoidance estimates diel vertical migration
2014/5/19
Diel vertical migration (DVM) has been hypothesized to actively transport organic material out of the euphotic layer, thus forming a novel part of the ‘‘biological pump.’’ However,...
Plasticity in vertical migration by native and exotic estuarine fishes in a dynamic low-salinity zone
vertical migration native and exotic estuarine fishes a dynamic low-salinity zone
2014/5/26
We investigated the degree of flexibility in retention strategies of young fishes in the low-salinity zone (LSZ) of the San Francisco Estuary during years of highly variable river flow. We conducted d...