Submerged vegetation of Lakes Sumner, Marion, Katrine, Taylor, and Sheppard in Canterbury, New Zealand
作者:
Maryd De Wemton,
JohnS. Clayton,
RohanD. S. Wells,
ChrisC. Tanner,
SuzanneT. Miller,
期刊:
New Zealand Journal of Marine and Freshwater Research
(Taylor Available online 1991)
卷期:
Volume 25,
issue 2
页码: 145-151
ISSN:0028-8330
年代: 1991
DOI:10.1080/00288330.1991.9516464
出版商: Taylor & Francis Group
关键词: Lake Sumner;Lake Marion;Lake Katrine;Lake Taylor, Lake Sheppard;aquatic plants;submerged vegetation;bryophytes;charophytes;Elodea canadensis;Project Aqua;macrophytes
数据来源: Taylor
摘要:
The submerged vegetation of Lakes Sumner, Marion, Katrine, Taylor, and Sheppard was surveyed in May 1987. These high‐altitude lakes lie at c. 600 m a.s.l., within the largely unmodified upper Hurunui catchment. Submerged vegetation was diverse and included numerous short shallow‐water species, dense swards ofIsoetes alpinus, low covers of taller native vascular plants, and charophyte meadows beyond the depth limit of vascular plants to a maximum of 15 m. A sparse deepwater bryophyte community was observed from 11 to 32 m depth in Lake Sumner. Displacement of native vegetation by dense growths of the adventive oxygen weedElodea canadensisover mid‐depths of 3–6 m was noted in all lakes, except Lake Marion.
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