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Distribution of hydroids along fronds of the kelp Ecklonia radiata
Citation
Zagal, CJ and Underwood, AJ and Chapman, MG, Distribution of hydroids along fronds of the kelp Ecklonia radiata, Hydrobiologia, 720, (1) pp. 89-99. ISSN 0018-8158 (2013) [Refereed Article]
Copyright Statement
Copyright 2013 Springer Science+Business Media Dordrecht
DOI: doi:10.1007/s10750-013-1627-1
Abstract
Abundances of organisms generally
increase with structural heterogeneity and complexity
of habitat. Patterns of distribution of hydroids on the
kelp Ecklonia radiata were studied in Australia to
examine the generality of this pattern. It was predicted
that the cover of hydroids on E. radiata would be
greater in the most heterogeneous (e.g., peripheral,
crinkled blades) and complex (e.g., middle and bushy)
parts of the alga. When different zones were independently
compared along laminae of E. radiata, two
clear patterns were found. Covers of hydroids in basal,
middle and distal zones were greater in the periphery
than in the centre of kelp. Second, covers in the
periphery and in the centre of kelp were greater in
middle than in distal zones and greater in distal than in
basal zones. Both patterns conform to those predicted.
At a finer spatial resolution, hydroids were significantly
more abundant in troughs than on ridges of the
peripheral blades of E. radiata. The primary substrata
on which kelp was growing (pier-pilings or shark-nets)
did not affect the distribution of hydroids. Biological
and abiotic factors associated with the kelp itself most
probably influence the distribution of hydroids along
fronds, but manipulative experiments are needed to
establish what models explain these patterns.
Item Details
Item Type: | Refereed Article |
---|---|
Keywords: | Algal epifauna |
Research Division: | Biological Sciences |
Research Group: | Ecology |
Research Field: | Marine and estuarine ecology (incl. marine ichthyology) |
Objective Division: | Environmental Management |
Objective Group: | Marine systems and management |
Objective Field: | Oceanic processes (excl. in the Antarctic and Southern Ocean) |
UTAS Author: | Zagal, CJ (Dr Carolina Zagal) |
ID Code: | 87332 |
Year Published: | 2013 |
Web of Science® Times Cited: | 2 |
Deposited By: | Sustainable Marine Research Collaboration |
Deposited On: | 2013-11-13 |
Last Modified: | 2015-07-10 |
Downloads: | 0 |
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