Abstract Recent observations from high-latitude marine ecosystems indicate that non-consumptive mortality may be particularly high in Arctic zooplankton during the polar night. Here we have estimated contribution of dead organisms to mesozooplankton community (Svalbard 78–81oN) night (January), spring (May) and late summer (end August). To identify situ organisms, used Neutral Red Stain. The fr...

[1] Stable water isotope (dO, dD) data from a high elevation (5100 masl) ice core recovered from the Tien Shan Mountains, Kyrgyzstan, display a seasonal cycle in deuterium excess (d = dD 8*dO) related to changes in the regional hydrologic cycle during 1994–2000. While there is a strong correlation (r = 0.98) between dO and dD in the ice core samples, the regression slope (6.9) and mean d value ...

In most north temperate lakes, phytoplankton biomass oscillates on an annual scale. While phytoplankton seasonal succession within a year has been described for many lakes, much less is known about variability in seasonal succession over multiple years. Here, we describe how continuous wavelet transforms can be used to identify variation in the periodicity in phytoplankton time series at multip...

Cyclic volatile methyl siloxanes (cVMSs) are important components in personal care products that transport and react in the atmosphere. Octamethylcyclotetrasiloxane (D4), decamethylcyclopentasiloxane (D5), dodecamethylcyclohexasiloxane (D6), and their gas-phase oxidation products have been incorporated into the Community Multiscale Air Quality (CMAQ) model. Gas-phase oxidation products, as the ...