928 datasets found

This data set contains stable isotope values (δ15N and δ13C) from the baleen of fifteen North Atlantic minke whales (Balaenoptera acutorostrata). The whales were taken under...

The values of carbon and nitrogen content, and natural abundance of stable isotopes were measured in mesozooplankton samples from two shelf stations off A Coruña (NW Spain) at...

While nitrogen and carbon stable isotope values can reflect ecological segregation, prey choice and spatial distribution in seabirds, the interpretation of bulk stable isotope...

Denitrification in the Arabian Sea is closely related to the monsoon-induced upwelling and subsequent phytoplankton production in the surface water. The δ15N values of bulk...

Water-column integrated measurements of natural abundance of stable carbon and nitrogen isotopes in seston, sediment trap particles and in four plankton size-fractions...

High latitude deep water upwelling has the potential to control global climate over glacial timescales through the biological pump and ocean-atmosphere CO2 exchange. However,...

δ15N of abundant chlorins (pheophytin a) and bulk material from leaves, litter, and soil across four sites of a precipitation gradient on leeward Kohala volcano, Hawaii....

Stable isotope values (δ¹⁵N and δ¹³C) of 20 calanoid copepod species, 3 zooplankton size fractions and seston were assessed from samples obtained monthly between January and...

In this study we use bulk sediment organic matter stable isotopes (d13Corg and d15N) to examine the nature and timing of preserved organic matter in borehole PRGL1-4 from...

This study includes sample name, depth with respect to the Cretaceous-Paleogene (K/Pg) boundary (cm), percentage of calcium carbonate (%CaCO3), percentage of total organic...

Data set contains natural stable isotopes of carbon and nitrogen of coral reef macroalgae, collected by hand from six locations from the Great Barrier Reef and Moreton Bay,...

In this study organic mater fluorescence is characterized by excitation-emission matrix spectroscopy on alkaline extracted DOM from a Baltic Sea sediment core that spanned 8500...

Carbon and nitrogen elemental composition, abundance, and natural abundance of stable isotopes in planktonic copepods from six geographical zones in the eastern tropical Pacific...

Nitrogen fixation is a key source of nitrogen in the Baltic Sea which counteracts nitrogen loss processes in the deep anoxic basins. Laboratory and field studies have indicated...

Oxygen minimum zones (OMZ) have expanded in all tropical oceans during the last 50 years resulting in habitat contraction and considerable changes in marine biogeochemistry....

Long-term fire histories provide insight into the effects of climate, ecology and humans on fire activity; they can be generated using accumulation rates of charcoal and soot...

Natural stable isotopes ratios (d13Corg and d15N) and associated elemental concentrations (i.e. total organic carbon and total nitrogen contents) preserved in marine sediments...

Although microcosm experiments are a frequent tool used to address fundamental ecological questions, there has been no quantitative assessment of the reproducibility of any...

The following analysis was performed using a Costech Elemental Combustion System 4010 connected to a Thermo Finnigan ConfloIII Interface and Deltaplus Continuous Flow-Stable...

The isotopic composition of atmospheric nitrous oxide (N2O) was measured semicontinuously, at ~35 min frequency in intermittent periods of 1-6 days over one and a half years,...