Aquatic Food Webs
Effects of dissolved organic carbon on methylmercury bioavailability in stream ecosystems (2016NH205G) Problem: Neurotoxic methylmercury bioaccumulates through aquatic food webs and is a
... through aquatic food webs and is a primary cause for fish consumption advisories in the ...in aquatic ecosystems is strongly tied to organic matter dissolved in the water, yet levels of ...
6
Coal ash constituents at the base of aquatic food webs: Processes affecting bioaccumulation and trophic transfer of arsenic
... Aquatic invertebrates have been widely used for assessing and monitoring environmental disturbances,(Hodkinson and Jackson 2005) particularly contamination of aquatic ecosystems with trace metals and ...
38
The application of network analysis to assess the structure and function of aquatic food webs : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Ecology at Massey University, Manawatu, New Zealand
... of aquatic communities is under threat globally by anthropogenic ...of food web metrics that can measure both structural and functional aspects of ecological ...of aquatic ecosystems and explore how ...
201
Trophic structure and the importance of terrestrial wetland producers for aquatic food webs in tropical Australian estuaries
... In a first study, stable isotope analysis of carbon and nitrogen were used to analyse processes of energy flow and assess the extend to which carbon fixed by terrestrial plants is incorporated into adjacent ...
24
Trophic structure and the importance of terrestrial wetland producers for aquatic food webs in tropical Australian estuaries
... 2005b). Traditionally, these terrestrial components of estuarine wetland habitats have been considered as important sources of carbon for aquatic invertebrates and fish (Odum & Heald 1975). However, recent ...
242
Hydrodynamic regulation of salt marsh contributions to aquatic food webs
... the food web at this site functions differently from other sites, or that our models over-estimated the contribution of Spartina, or underestimated the duration of access to the marsh ...to aquatic ...
16
Extreme Climatic Events Alter Aquatic Food Webs. A Synthesis of Evidence from a Mesocosm Drought Experiment
... the food web, community or ecosystem as a ...explicitly food web perspective in mind, the parallels are ...of food and/or suffer disproportionately from increased metabolic demands and fragmentation ...
56
Toxicity of Selenium and Total Dissolved Solids at the Base of Aquatic Food Webs: Assessing the Causes of Biological Impairment Resulting from Mountaintop Removal - Valley Fill Coal Mining.
... Maternal transfer of Se did not differ between feeding rations with 1x mayflies (grand mean, 39 ± 5%) transferring roughly identical amounts of Se to eggs as 2x mayflies (grand mean, 44 ± 5%). It was interesting to ...
246
THE BIOACCUMULATION OF CYANOTOXINS IN AQUATIC FOOD WEBS, Amanda Lee Murby McQuaid
... of food based on size; from fine particle feeding Daphnia to coarse feeding Holopedium, with Bosmina having feeding preferences that overlap with the other cladocerans (Gliwicz and Lampert 1990; Gliwicz and Umana ...
269
Environmental and Biological Factors Influencing Accumulation of Arsenic at the Base of Aquatic Food Webs.
... important food source at the base of freshwater ecosystems that tends to bioconcentrate trace elements making them trophically ...lotic food webs we used a radiotracer approach to characterize ...
161
Reviews and syntheses: Insights into deep sea food webs and global environmental gradients revealed by stable isotope (δ15N, δ13C) and fatty acid trophic biomarkers
... main food sources, and a benthic and more isotopically enriched trophic pathway, fueled by de- graded sedimented ...primary food source they relied on, benthic organisms at PAP were thus characterized by ...
20
Study the distribution of zooplankton population in the estuarine environment of manakudy
... sp., Brachionus rotundiformis, Brachionus calyciflorus, Brachionus plicatilis, Bdelloid sp., Daphnia sp., Bosmina sp., Moina sp., Penilia avirostris, Glochidium larvae, Polychaete larvae, Paramaecium sp., Megalopa ...
5
Importance of terrestrial subsidies for estuarine food webs in contrasting East African catchments
... Biological material.—1. Primary producers.— Aquatic and terrestrial primary producers were collected from each site. Terrestrial plants (in- cluding mangroves and saltmarsh plants) were collected from the vicinity ...
33
Body size distributions and diet breadth : stream food web proxies and predictions across a contaminant gradient
... Benthic macroinvertebrates were randomly collected in three Surber samples (0.06 m 2 , 0.25 mm mesh) from riffle habitats at each site (Blakely and Harding 2005). Samples were preserved with 100% ethanol in the field and ...
145
Causes and consequences of soil carbon mobilization and lake brownification in northern forested landscapes
... lake food webs (Solomon et al., 2015). In aquatic systems, DOC acts as a light screen and a nutrient vector that supplies macro- (nitrogen and phosphorus) and micronutrients ...of aquatic C ...
165
Food Web Simulation Studies on Aquatic Ecosystems
... Our results suggest that SMALLTUNA is a clear indicator of effects of fishing strategy by FADs. Tuna in the food web is the predator of the other individual species, which in less presence of tuna increase in ...
166
Webs
... Hearing that high percentages of cancer patients report depression, you respond: "But it seenlS likely that of several hundred people who do not have cancer, most would also report d[r] ...
9
Bending the rules:exploitation of allochthonous resources by a top predator modifies size abundance scaling in stream food webs
... the food web, especially in strongly size-structured aquatic ecosystems where gape-limited predation predominates (Kerr & Dickie ...of food-web structure and energy flow (Yvon-Durocher et ...
27
Modeling of Sic Power Semiconductor Devices For Switching Converter Applications
... within food webs has attracted the attention of researchers for over a century (Elton 1927), including efforts to uncover their structural properties ...of food webs may be complex (Polis ...
145
Returnability in complex directed networks (digraphs)
... As can be seen in Table 1, there are four non+returnable directed graphs, i.e., digraphs with zero returnability, with three nodes. Two of them, Nos. 2 and 4, have been identified as motifs in food webs and ...
24