搜索结果: 1-13 共查到“海洋生物学 Prey”相关记录13条 . 查询时间(0.172 秒)
Feeding rates and prey : predator size ratios of the nauplii and adult females of the marine cyclopoid copepod Oithona davisae
predator size Feeding rates and prey
2014/11/28
We studied the feeding behavior of the nauplii and adult females of the marine cyclopoid copepod Oithona
davisae in the laboratory. Functional response experiments showed that O. davisae can feed on ...
Selectivity by planktivorous fish at different prey densities, heterogeneities, and spatial scales
different prey densities heterogeneities spatial scales
2014/4/2
Studies in artificially confined, small-scale experimental systems with a homogeneous prey distribution suggest
that selectivity in planktivorous fish for more conspicuous and rewarding prey (such as...
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...
Marine effect of introduced salmonids: Prey consumption by exotic steelhead and anadromous brown trout in the Patagonian Continental Shelf
Marine effect of introduced salmonids Prey consumption exotic steelhead anadromous brown trout the Patagonian Continental Shelf
2014/4/16
On the basis of stable isotope analysis, we estimated the marine diet of the most abundant anadromous salmonid species in Patagonian Atlantic basins. The results were coupled with bioenergetic and pop...
No empirical evidence for community-wide top-down control of prey fish density and size by fish predators in lakes
No empirical evidence community-wide top-down control prey fish density size by fish predators in lakes
2014/4/16
I tested relationships between fish predator and prey densities or size across 66 lakes of the European temperate zone, covering mean depths between 1 and 22 m and a phytoplankton biomass range betwee...
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 ...
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...
Molecular quantification of differential ingestion and particle trapping rates by the appendicularian Oikopleura dioica as a function of prey size and shape
Molecular quantification of differential ingestion particle trapping rates the appendicularian Oikopleura dioica function of prey size and shape
2014/4/22
To investigate whether particles are ingested or merely trapped in the house of the appendicularian Oikopleura dioica, we developed a real-time quantitative polymerase chain reaction (qPCR) assay and ...
Significance of subcellular metal distribution in prey in influencing the trophic transfer of metals in a marine fish
subcellular metal distribution in prey trophic transfer metals in a marine fish
2014/5/5
We investigated how the subcellular metal distribution in prey affects metal dietary assimilation in a marine fish, the grunt Terapon jarbua. The assimilation efficiency (AE) of metals (Cd, Se, and Zn...
Prey-specific encounter rates and handling efficiencies as causes of prey selectivity in ambush-feeding hydromedusae
Prey-specific encounter rates handling efficiencies prey selectivity ambush-feeding hydromedusae
2014/5/4
We examined the foraging process in the jellyfish Sarsia tubulosa feeding on three types of prey: cirripede nauplii, cypris larvae, and Acartia tonsa copepodites. Clearance rate was used as measure of...
Selective predators and their parasitized prey: Are epidemics in zooplankton under top-down control?
Selective predators parasitized prey epidemics in zooplankton top-down control
2014/5/9
Seasonal change in the intensity of fish predation affects succession in lake zooplankton communities. Predation affects not only the zooplankton prey, but also their parasites. Because the ability of...
Prey resource utilization by coexistent hydromedusae from Friday Harbor, Washington
Prey resource utilization coexistence hydromedusae Friday Harbor Washington
2014/5/27
Prey selection patterns were quantified for a sympatric group of hydromedusae from Friday Harbor, WA. Selection patterns varied between species, but were largely replicable between sample dates and re...
Testing for toxic effects of prey on zooplankton using sole versus mixed diets
toxic effects prey on zooplankton sole versus mixed diets
2014/5/26
Negative effects of prey species on consumers could be due to deterrence, nutritional insufficiency, or toxicity of the prey. These effects can be discerned in experiments in which the suspect prey is...