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Effects of seasonal growth rate on morphological variation of Undaria pinnatifida (Alariaceae, Phaeophyceae)
Citation
Stuart, MD and Hurd, CL and Brown, MT, Effects of seasonal growth rate on morphological variation of Undaria pinnatifida (Alariaceae, Phaeophyceae), Hydrobiologia, 398-399 pp. 191-199. ISSN 0018-8158 (1999) [Refereed Article]
Copyright Statement
Copyright 1999 Kluwer Academic Publishers
DOI: doi:10.1023/A:1017012301314
Abstract
Undaria pinnatifida (Harvey) Suringar is currently divided into two morphological forms, f. typica Yendo. and f.
distans Miyabe & Okamura. The objective of this study was to determine the effects of seasonal variation in growth
rate on the morphology of U. pinnatifida, and to define the form of U. pinnatifida growing in Otago Harbour, New
Zealand. Morphological variables (stipe length, blade length, blade width, sporophyll length and degree of blade
incision), growth rates (frond, blade and stipe) and blade erosion were measured each month from August 1993 to
February 1995, and compared using correspondence analysis. Variation in the morphology of U. pinnatifida was
largely accounted for by varying growth rates. Definition of the form of U. pinnatifida growing in Otago Harbour
is equivocal because morphological characteristics of both f. typica and f. distans were exhibited at different times
of the year.
Item Details
Item Type: | Refereed Article |
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Keywords: | Undaria, invasive seaweed, morphology, growth, seaweed, seasonal variation, phenotypic modulation, kelp |
Research Division: | Biological Sciences |
Research Group: | Plant biology |
Research Field: | Phycology (incl. marine grasses) |
Objective Division: | Environmental Management |
Objective Group: | Coastal and estuarine systems and management |
Objective Field: | Control of pests, diseases and exotic species in coastal and estuarine environments |
UTAS Author: | Hurd, CL (Professor Catriona Hurd) |
ID Code: | 93152 |
Year Published: | 1999 |
Web of Science® Times Cited: | 36 |
Deposited By: | IMAS Research and Education Centre |
Deposited On: | 2014-07-14 |
Last Modified: | 2014-08-04 |
Downloads: | 0 |
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