NDLI: Habitat structure affect abundances of labrid fishes across temperate reefs in south-western Australia

Content Provider	Springer Nature Link
Author	Tuya, Fernando Wernberg, Thomas Thomsen, Mads S.
Copyright Year	2009
Abstract	We tested the effect of reef complexity (number of small vs. large topographic elements,<1 m and >1 m, respectively), and composition of macroalgae (cover of the kelp Ecklonia radiata, fucalean and red algae) on the abundance patterns of labrid fishes across ~800 km of coastline in south-western Australia. Fishes and habitat attributes were visually counted at 12 reefs visited at four times over 1 year. Five labrids (Austrolabrus maculatus, Coris auricularis, Notolabrus parilus, Ophthalmolepis lineolata and Pseudolabrus biseralis) were frequently observed (>20% of counts), while three species (Bodianus axillaris, Choerodon rubescens and Thalassoma lutescens) were rarely censused (< 6%). Patterns of abundance were generally affected by two descriptors of the habitat structure: the number of small topographic elements (100 m−2), and the percentage of red algal cover. Most species showed a tendency for an increase in their abundances with an increase in the number of small topographic elements and cover of red algae. The patterns likely reflect an underlying correlation between habitat structure and prey accessibility and lowered predation risk.
Starting Page	311
Ending Page	319
Page Count	9
File Format	PDF
ISSN	03781909
Journal	Environmental Biology of Fishes
Volume Number	86
Issue Number	2
e-ISSN	15735133
Language	English
Publisher	Springer Netherlands
Publisher Date	2009-08-07
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Habitat structure Fish Abundance Spatial distribution Temperate reefs Western Australia Nature Conservation Environment Animal Systematics/Taxonomy/Biogeography Zoology Freshwater & Marine Ecology
Content Type	Text
Resource Type	Article
Subject	Aquatic Science Ecology, Evolution, Behavior and Systematics

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