搜索结果: 1-15 共查到“海洋科学 Predation”相关记录23条 . 查询时间(0.077 秒)
Vulnerability of Logfin Inshore Squid (Loligo Pealeii) to Predation: The Influence of Relative Prey Size and Behavior
Marine Predation Size-selection
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2014/10/23
Cephalopods provide forage to a wide range of predators in marine food-webs. Despite their ecological importance, a basic understanding of the mechanisms controlling predation risk and demand is lacki...
Predation of threespine stickleback (Gasterosteus aculeatus) on the eggs of Atlantic herring (Clupea harengus) in a Baltic Sea lagoon
Predation of threespine stickleback Atlantic herring
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2014/4/2
We analyzed the predation of threespine stickleback (Gasterosteus aculeatus) on the spawn of Atlantic herring
(Clupea harengus) in a mesohaline lagoon of the Baltic Sea, hypothesizing a significant p...
Food web consequences of size-based predation and vertical migration of an invertebrate predator (Leptodora kindtii)
size-based predation an invertebrate predator
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2014/4/2
In an intensive study of the vertical and horizontal distribution of zooplankton in a eutrophic lake (Katepwa
Lake), we found that only adult Leptodora kindtii (. 5 mm in body size) exhibited diel ve...
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
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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...
Does predation control adult sex ratios and longevities in marine pelagic copepods?
predation contro adult sex ratios longevities marine pelagic copepods
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2014/4/16
We assess the causes of adult sex ratio skew in marine pelagic copepods by examining changes in these ratios between the juveniles and adults, sexual differences in juvenile stage durations, and morta...
UV-enhanced fish predation and the differential migration of zooplankton in response to UV radiation and fish
UV-enhanced fish predation zooplankton
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2014/4/18
The intensity and spectral composition of visible light are known to influence fish predation on zooplankton.
However, in clear-water systems, ultraviolet (UV) radiation (UVR) may also influence fish...
Vertical distribution of zooplankton in subalpine and alpine lakes: Ultraviolet radiation, fish predation, and the transparency-gradient hypothesis
Vertical distribution of zooplankton subalpine and alpine lakes Ultraviolet radiation fish predation, the transparency-gradient hypothesis
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2014/4/21
The transparency-gradient hypothesis argues that ultraviolet radiation (UV) is a primary determinant of the vertical distribution of zooplankton in transparent lakes with fewer fish, while fish predat...
Vertical distribution of zooplankton in subalpine and alpine lakes: Ultraviolet radiation, fish predation, and the transparency-gradient hypothesis
Vertical distribution zooplankton in subalpine alpine lakes Ultraviolet radiation fish predation transparency-gradient hypothesis
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2014/4/18
The transparency-gradient hypothesis argues that ultraviolet radiation (UV) is a primary determinant of the vertical distribution of zooplankton in transparent lakes with fewer fish, while fish predat...
Consequences of fish predation, migration, and juvenile ontogeny on zooplankton spring dynamics
Consequences of fish predation migration juvenile ontogeny zooplankton spring dynamics
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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...
Virus predation by sponges is a new nutrient-flow pathway in coral reef food webs
Virus predation by sponges new nutrient-flow pathway coral reef food webs
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2014/5/4
The removal efficiency of viral particles by the coral reef sponge Negombata magnifica was measured. Virus particles were removed by the sponge at an average efficiency of 23.3% ± 2.9%. Significant am...
Effects of predation and food on the population dynamics of the raptorial cladoceran Leptodora kindtii
predation and food population dynamics raptorial cladoceran Leptodora kindtii
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2014/5/9
We assessed the trophic status of Leptodora kindtii in the food web of a shallow, eutrophic lake in which 0+ age group fish were the main predators. The mean biomass of 0+ fish during three successive...
Effects of climate on relative predation by scyphomedusae and ctenophores on copepods in Chesapeake Bay during 1987-2000
climate on relative predation scyphomedusae ctenophores copepods in Chesapeake Bay
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2014/5/8
The mesohaline region of Chesapeake Bay had high densities of the scyphomedusan Chrysaora quinquecirrha and low densities of the ctenophore Mnemiopsis leidyi in 1987-1990 and 1995. By contrast, 1996-2...
Attachment to suspended particles may improve foraging and reduce predation risk for tintinnid ciliates
Attachment to suspended particles improve foraging reduce predation risk tintinnid ciliates
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2014/5/19
We describe a new behavior of planktonic ciliates. The field-collected tintinnid Eutintinnus inquilinus attached with its lorica to a range of surfaces, including particulate aggregates. Most tintinni...
A species invasion mediated through habitat structure, intraguild predation, and parasitism
habitat structure intraguild predation
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2014/5/19
With field, laboratory, and modeling approaches, we examined the interplay among habitat structure, intraguild
predation (IGP), and parasitism in an ongoing species invasion. Native Gammarus du...
Predation as a factor mediating resource competition among rotifer sibling species
rotifer sibling species Predation
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2014/5/14
The relevance of predation as a factor mediating the competitive interaction among ecologically very similar
species is investigated by experimentally analyzing the effect of the copepod predator Dia...