@article{goldsborough_light_1988,
	title = {Light responses of a submersed macrophyte: implications for survival in turbid tidal waters},
	doi = {10.2307/1941156},
	abstract = {Responses and acclimation of the submersed vascular plant Potamogeton perfoliatus to changes in total irradiance were investigated by growing replicate populations under 3 treatment levels (11, 32 and 100\% of ambient). Significant morphological responses to and recovery from shade were evident within 10 d, including: elongation of stems, thinning of lower leaves, and canopy formation at the water surface. Both photosynthetic and morphological acclimations to shade conferred substantial improvements in P. perfoliatus production at experimentally reduced irradiance compared to pretreatment conditions. Significant decreases in plant stem density, biomass and reproduction, as well as increases in mortality, were observed for plants at low growth irradiance. The inability of populations treated at low irradiance to exhibit any recovery (posttreatment increases) in these variables after 16 d of full ambient light suggests that 11\% of ambient irradiance was below the minimum level needed for survival of this plant. Although stem elongation is a beneficial response to shade for P. perfoliatus in turbid lakes, it may be nonadaptive in turbulent tidal waters because of increased susceptibility to fragmentation. -from Authors},
	journal = {Ecology},
	author = {Goldsborough, W. J. and Kemp, W. M.},
	year = {1988},
	keywords = {Environmental Interactions, Processes, and Modeling},
}

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