Particulate organic matter in Antarctic summer sea ice: concentration and stable isotopic composition

By H. Kennedy, D. Thomas, G. Kattner, C. Haas, G. Dieckmann. 2002

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Large scale importance of sea ice biology in the Southern Ocean (2004, background): “This may be true of internal assemblages, and is certainly true for surface gap layers (Kennedy et al. 2002) as well as platelet ice systems underlying fast ice (Arrigo et al. 1995).”
Food web structure in the high Arctic Canada Basin: evidence from δ13C and δ15N analysis (2005, unknown): “This was surprising because recent studies (e.g., Schubert and Calvert 2001; Kennedy et al. 2002; Thomas and Papadimitriou 2003) found sea-ice algae to be isotopically heavier than phytoplankton.”
Increased irradiance reduces food quality of sea ice algae (2010, background): “Changes in the carbon isotopic composition of ice algae may reflect changes in the isotopic composition of ΣCO2 in closed or semi-closed environments where replenishment of ΣCO2 from either atmospheric or advective exchange are limited (Kennedy et al. 2002).”
Temporal and vertical variations of lipid biomarkers during a bottom ice diatom bloom in the Canadian Beaufort Sea: further evidence for the use of the IP25 biomarker as a proxy for spring Arctic sea ice (2011, background): “In contrast, for sections where fatty acid concentrations were much higher, the more positive d(13)C values, especially in the 1–4 cm ice sections, indicated relatively lower (13)C depletion consistent with a CO2-limited environment (McMinn et al. 1999; Kennedy et al. 2002; Budge et al. 2008).”