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Isotopic Determination of Food Sources ofCrassostrea gigasAlong a Trophic Gradient in the Estuarine Bay of Marennes-Ol éron
Along a trophic gradient from the head of an estuary to the open ocean, carbon isotope ratios were determined both in tissues of the Pacific oysterCrassostrea gigasand in different components of theExpand
Overview and regional and temporal differences of heavy metals in Arctic whales and ringed seals in the Canadian Arctic.
Concentrations of mercury, cadmium, and other heavy metals in tissues of belugas (Delphinapterus leucas), narwhal (Monodon monoceros) and ringed seals (Phoca hispida) from across the Canadian ArcticExpand
Whisker isotopic signature depicts migration patterns and multi-year intra- and inter-individual foraging strategies in fur seals
The isotopic signature of whiskers revealed new multi-year foraging strategies of male Antarctic fur seals and is a powerful tool for investigating the ecological niche during cryptic stages of mammals' life. Expand
Summer and Autumn Movements of Belugas of the Eastern Beaufort Sea Stock
Beluga whales of the eastern Beaufort Sea stock were tagged with satellite-linked time-depth recorders and tracked during summer and autumn in 1993, 1995, and 1997. Whales occupied the MackenzieExpand
Chemical and isotopic composition of the organic matter sources in the Gulf of Gdansk (southern Baltic Sea)
Abstract Particulate organic matter (POM) in coastal areas and in estuaries, originates from heterogeneous allochthonous and autochthonous sources. Each POM source may contribute substantially to theExpand
Isotopic niches and trophic levels of myctophid fishes and their predators in the Southern Ocean
The isotopic niche of myctophids indicates that Aptenodytes patagonicus (king penguin) adults prey upon K. anderssoni when they feed for themselves, thus exemplifying the usefulness of isotopic datasets on potential prey of predators to depict trophic relationships. Expand
Food sources of an infaunal suspension-feeding bivalve Cerastoderma edule in a muddy sandflat of Marennes-Oléron Bay, as determined by analyses of carbon and nitrogen stable isotopes
It is suggested that there are 2 major sources of organic matter assimilated by cockles of the studied flats: microphytobenthos and POM, and the relative importance of the 2 major food sources depends on the age of the cockles and the season. Expand
Determination of food sources for benthic invertebrates in a salt marsh (Aiguillon Bay, France) by carbon and nitrogen stable isotopes: importance of locally produced sources
This isotopic data set revealed complex trophic relationships for the nematode community and for the crab Carcinus maenas which did not allow accurate isotopic determination of food sources. Expand
Stable isotopes reveal the trophic position and mesopelagic fish diet of female southern elephant seals breeding on the Kerguelen Islands
It is suggested that female seals occupy a unique trophic niche amongst the guild of air-breathing, diving vertebrates by feeding on mesopelagic fish at great depths, which emphasizes the role of myctophids in oceanic waters and will help to quantify and model fluxes of matter and energy within the pelagic ecosystem of the Southern Ocean. Expand
Resource partitioning within a tropical seabird community: new information from stable isotopes
It is shown that analyzing stable isotope values in blood and feathers appears to be a promising alternative method for investigating food and feeding ecology of tropical seabirds year round, and for determin- ing sex- and age-related differences in their foraging strategies. Expand