162
M. A. Mateo, J. Cebri ´
an, K. Dunton, and T. Mutchler
Fig. 1. Comparison of the
13 C,
14 C, and O 2 methods for estimating carbon uptake rates in Zostera marina (modified from Mateo et al.,
2002).
Recent advances in both mass spectrometric analyses of stable isotopes and chlorophyll fluorescence
measurements have presented some promising opportunities for seagrass biologists. Direct measurement of carbon uptake by seagrasses and other large
macrophytes has always proved difficult, using
14 C
uptake methods, due to expense and hazards associated with its use and disposal. However, both
Mateo et al. (2001) and Miller and Dunton (2003)
have recently demonstrated the application of
13 C to
M. A. Mateo, J. Cebri ´
an, K. Dunton, and T. Mutchler
Fig. 1. Comparison of the
13 C,
14 C, and O 2 methods for estimating carbon uptake rates in Zostera marina (modified from Mateo et al.,
2002).
Recent advances in both mass spectrometric analyses of stable isotopes and chlorophyll fluorescence
measurements have presented some promising opportunities for seagrass biologists. Direct measurement of carbon uptake by seagrasses and other large
macrophytes has always proved difficult, using
14 C
uptake methods, due to expense and hazards associated with its use and disposal. However, both
Mateo et al. (2001) and Miller and Dunton (2003)
have recently demonstrated the application of
13 C to