Ecological and environmental factors - report from Working Group 2

Bijma, J., Altabet, M., Conte, M., Kinkel, H., Versteegh, G.J.M., Volkman, J.K., Wakeham, S.G. and Weaver, P. (2001) Ecological and environmental factors - report from Working Group 2. Geochemistry, Geophysics, Geosystems, 2, art.1003. (doi:10.1029/2000GC000051).

Abstract

Alkenone-based proxies are routinely used for paleoceanographic and climatologic reconstructions despite the fact that their calibration to environmental parameters is still a matter of debate. Significant differences are observed among culture calibrations using different strains of alkenone producers, between regional field calibrations within the euphotic zone, and between water column- and core top-based calibrations. The reasons for these discrepancies are not well understood and call for further evaluation. The possibility is raised that several aspects of genetics, physiology, and ecology of alkenone-producing haptophytes may be responsible, and suggestions of future research are proposed.

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