搜索结果: 1-11 共查到“海洋科学 stable isotopes”相关记录11条 . 查询时间(0.163 秒)
Revealing organic carbon sources fueling a coral reef food web in the Gulf of Mexico using stable isotopes and fatty acids
Revealing organic carbon sources coral reef food web Gulf of Mexico stable isotopes fatty acids
2014/4/2
Carbon and nitrogen stable isotopes and fatty acids (FAs) revealed primary producer organic carbon sources that fuel a coral reef food web with river influence. A stable isotope mixing model was used ...
Spatial and temporal variability of prairie lake hydrology as revealed using stable isotopes of hydrogen and oxygen
Spatial temporal variability hydrogen and oxygen
2014/4/17
Evaporation and groundwater fluxes are thought to regulate hydrologic variability in lakes of the northern
Great Plains, but little is known of how the relative importance of these processes may vary...
Across margin export of organic matter by cascading events traced by stable isotopes, northwestern Mediterranean Sea
organic matter stable isotopes northwestern Mediterranean Sea
2014/4/17
We present a 1-yr (2005–2006) record of organic carbon (OC) and total nitrogen (TN) contents and their
isotopic ratios (d13
COC and d15N) in sinking particles from the western Gulf of Lions. Maximum...
Trophic relationships of exotic anadromous salmonids in the southern Patagonian Shelf as inferred from stable isotopes
Trophic relationships exotic anadromous salmonids the southern Patagonian Shelf inferred stable isotopes
2014/4/21
On the basis of their thermal preferences, salmon introduced in South America can distribute over the whole Southern Patagonian Shelf Ecosystem (SPSE). Stable isotope (d13C andd15N) data show that the...
Carbon stable isotopes reveal relative contribution of shelf-slope production to the northern California Current pelagic community
Carbon stable isotopes shelf-slope production the northern California Current pelagic community
2014/4/18
To better delineate the relative contribution of shelf and slope production to the northern California Current (NCC) pelagic community, we examined the cross-shelf distribution ofd13 C in 19 species o...
Compound-specific stable isotopes of organic compounds from lake sediments track recent environmental changes in an alpine ecosystem, Rocky Mountain National Park, Colorado
Compound-specific stable isotopes organic compounds lake sediments environmental changes alpine ecosystem Rocky Mountain National Park Colorado
2014/4/18
Compound-specific nitrogen, carbon, and hydrogen isotope records from sediments of Sky Pond, an alpine lake in Rocky Mountain National Park (Colorado, United States of America), were used to evaluate ...
Stable isotopes in subtidal food webs: Have enriched carbon ratios in benthic consumers been misinterpreted?
subtidal food webs Have enriched carbon ratios
2014/5/5
We examined the hypothesis that the d13
C of benthic consumers is depleted in offshore, deeper waters where
kelp and benthic microalgae are absent by conducting three analyses: (1) we analyzed d13
...
Protozoans as a food source for Antarctic krill, Euphausia superba: Complementary insights from stomach content, fatty acids, and stable isotopes
Protozoans a food source Antarctic krill Euphausia superba Complementary insights stomach content fatty acids stable isotopes
2014/5/5
We studied the diet of Antarctic krill, Euphausia superba, at five stations across the southwest Atlantic sector in summer 2003 by analyzing stomach content, fatty acids, and stable isotopes on the sa...
Spatial variability of stable isotopes and fossil pigments in surface sediments of Alaskan coastal lakes: Constraints on quantitative estimates of past salmon abundance
Spatial variability stable isotopes fossil pigments surface sediments Alaskan coastal lakes Constraints on quantitative estimates past salmon abundance
2014/5/4
We quantified spatial patterns of stable isotopes of N and C (δ15N, δ13C) and fossil pigment concentrations in the uppermost 10 mm of sediment (,10 yr) from 74 profundal locations and three spawning-s...
Interpreting stable isotopes in food webs: Recognizing the role of time averaging at different trophic levels
stable isotopes food webs averaging at different trophic levels
2014/5/26
Lake Tanganyika, East Africa, has a simple pelagic food chain, and trophic relationships have been established previously from gut-content analysis. Instead of expected isotopic enrichment from phytop...
Interpreting stable isotopes from macroinvertebrate foodwebs in saline wetlands
Interpreting stable isotopes macroinvertebrate foodwebs saline wetlands
2014/5/26
We compared stable-isotope (δ13C and δ15N) and gut-content analyses of macroinvertebrate foodwebs in saline wetlands of the Laramie Basin, Wyoming, USA. Standard assumptions of stable-isotope fraction...