搜索结果: 16-27 共查到“海洋生物学 variation”相关记录27条 . 查询时间(0.119 秒)
Patterns in microphytobenthic primary productivity: Species-specific variation in migratory rhythms and photosynthesis in mixed-species biofilms
microphytobenthos primary productivity Species-specific variation migratory rhythms photosynthesis mixed-species biofilms
2014/5/9
The importance of temporal changes in the vertical distribution of microphytobenthic algae on the overall functioning of intertidal biofilms were investigated with low-temperature scanning electron mi...
Spatial and temporal variation in trace elemental fingerprints of mytilid mussel shells: A precursor to invertebrate larval tracking
Spatial and temporal variation trace elemental fingerprints mytilus mussel shells invertebrate larval tracking
2014/5/8
Elements incorporated into developing hard parts of planktonic larvae record the environmental conditions experienced during growth. These chemical signatures, termed elemental fingerprints, potential...
Two cues for sex determination inGammarus duebeni:Adaptive variation in environmental sex determination?
sex determination Gammarus duebeni Adaptive variation environmental sex determination
2014/5/8
In the crustacean Gammarus duebeni, sex is determined by the interaction of a number of environmental, genetic and parasitic factors, which may, in turn, influence sex ratios and population dynamics. ...
Diel variation of molybdenum and iron in marine diazotrophic cyanobacteria
molybdenum iron marine diazotrophic cyanobacteria
2014/5/19
Measurements of Mo:C and Fe :C ratios in cultured cells of two N2-fixing cyanobacteria, Crocosphaera watsonii strain WH8501 and Trichodesmium erythraeum strain IMS101, agree with estimated metal : car...
Interspecific and intraspecific variation of d13C and d15N in deposit- and suspension-feeding bivalves (Macoma balthica and Cerastoderma edule): Evidence of ontogenetic changes in feeding mode of Macoma balthica
Interspecific and intraspecific variation d13C and d15N deposit- and suspension-feeding bivalves ontogenetic changes feeding mode Macoma balthica
2014/5/14
Deposit and suspension feeders can switch feeding behavior and show variations in feeding mode as individuals pass through life-cycle stages. Stable carbon and nitrogen isotopes were used to trace cha...
Variation in iron(III) solubility and iron concentration in the northwestern North Pacific Ocean
Variation in iron(III) solubility iron concentration northwestern North Pacific Ocean
2014/5/27
Vertical distributions of Fe(III) hydroxide solubilities (<0.025 μm) and dissolved Fe (<0.2 μm) concentrations at 0-250 m depth were studied inside (HP) and outside (LP) a high-production (phytoplankt...
Landscape variation in phosphorus concentration and effects on detritus-based tropical streams
Landscape variation phosphorus concentration on detritus-based tropical streams
2014/5/26
Landscape-scale variation in streamwater phosphorus (P) concentration can affect aquatic food webs. Such variation occurs naturally in streams at La Selva Biological Station in Costa Rica due to spati...
Synchronous variation of dissolved organic carbon and color in lakes
Synchronous variation dissolved organic carbon color in lakes
2014/5/26
Temporal variation in dissolved organic carbon (DOC) and water color (light absorption at 440 nm) was measured in 20 lakes in northern Michigan that varied in DOC, pH, morphometry, and relative produc...
Latitudinal variation of the balance between plankton photosynthesis and respiration in the eastern Atlantic Ocean
Latitudinal variation plankton photosynthesis respiration eastern Atlantic Ocean
2014/6/10
A knowledge of the balance between plankton gross primary production (GPP) and community respiration (CR) in the open ocean is vital to the accurate determination of the global carbon cycle, yet the p...
Shifts in habitat templates for lotic microalgae linked to interannual variation in snowmelt intensity
habitat templates logic microalgae linked interannual variation snowmelt intensity
2014/6/9
We investigated the importance of snowmelt as an organizing factor for epilithic microalgae in a high-altitude montane stream during 3 yr (1995-1997) of differing melt characteristics. Changes in alga...
Stable isotope signatures of lotic invertebrates: Sources of variation, experimental design, and statistical interpretation
Stable isotope signatures lotic invertebrates Sources of variation, experimental design statistical interpretation
2014/6/9
In a subset of a stream food web, whole-body isotope values of d13C and d15N were measured for eight populations of lotic invertebrates. Observed isotopic differences among species corresponded broadl...
Seasonal variation of phosphorus limitation of bacterial growth in a small lake
Seasonal variation phosphorus limitation bacterial growth small lake
2014/5/30
A series of bioassay experiments were performed from spring to autumn in a small dimictic lake (Deep Pond, Massachusetts) to examine the potential for bacterial growth limitation by organic carbon (gl...