Response of shoal grass, Halodule wrightii, to extreme winter conditions in the Lower Laguna Madre, Texas
Aquatic Botany
By: D.W. Hicks, C.P. Onuf, and J.W. Tunnell
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Abstract
Effects of a severe freeze on the shoal grass, Halodule wrightii, were documented through analysis of temporal and spatial trends in below-ground biomass. The coincidence of the second lowest temperature (-10.6??C) in 107 years of record, 56 consecutive hours below freezing, high winds and extremely low water levels exposed the Laguna Madre, TX, to the most severe cold stress in over a century. H. wrightii tolerated this extreme freeze event. Annual pre- and post-freeze surveys indicated that below-ground biomass estimated from volume was Unaffected by the freeze event. Nor was there any post-freeze change in biomass among intertidal sites directly exposed to freezing air temperatures relative to subtidal sites which remained submerged during the freezing period.
Suggested Citation
Hicks, D., Onuf, C., Tunnell, J., 1998, Response of shoal grass, Halodule wrightii, to extreme winter conditions in the Lower Laguna Madre, Texas: Aquatic Botany, v. 62, no. 2, p. 107-114, https://doi.org/10.1016/S0304-3770(98)00084-9.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Response of shoal grass, Halodule wrightii, to extreme winter conditions in the Lower Laguna Madre, Texas |
| Series title | Aquatic Botany |
| DOI | 10.1016/S0304-3770(98)00084-9 |
| Volume | 62 |
| Issue | 2 |
| Year Published | 1998 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Aquatic Botany |
| First page | 107 |
| Last page | 114 |