Experimental studies on the ecology of intertidal environments at Herox Island

Stephenson W. (1961) Experimental studies on the ecology of intertidal environments at Herox Island. Marine and Freshwater Research, 12 2: 129-149. doi:10.1071/MF9610164


Author Stephenson W.
Title Experimental studies on the ecology of intertidal environments at Herox Island
Journal name Marine and Freshwater Research   Check publisher's open access policy
ISSN 1323-1650
Publication date 1961-01-01
Sub-type Article (original research)
DOI 10.1071/MF9610164
Open Access Status Not yet assessed
Volume 12
Issue 2
Start page 129
End page 149
Total pages 21
Subject 1104 Complementary and Alternative Medicine
1105 Dentistry
2303 Ecology
1910 Oceanography
Abstract Different kinds of rocks were cemented to the beach rock at Heron Island both upon the open surface to permit fish browsing, and within cages to prevent it. During a 12-month period, a negligible number of intertidal animals colonized these rocks, and their sparsity upon the surrounding beach rock is evidently not due to a substratum effect per se. Minor effects of the substratum on the flora were noted. On the harder rocks the brown alga, Ralfsia, was a conspicuous newcomer, while green algae were best developed on the calcareous substrata. The intensity of fish browsing was inversely related to the hardness of the rock surface, but the effect was concluded to be an indirect one, hardness affecting the thickness of the algal cover, and this, in turn, affecting the browsing intensity. Hard concrete placed upon the beach 7 years previously was appreciably higher than the general surface, and (after making certain assumptions) it appears that rock is removed by fish browsing to a thickness of about 0.5 mm per year. In a preliminary experiment acorn barnacles were transplanted from the reef crest to the beach rock, and a higher survival rate was observed on caged specimens.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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Created: Tue, 14 Jun 2016, 11:51:06 EST by System User