NDLI: Diet of finfish targeted by fishers in North West Australia and the implications for trophic cascades

Content Provider	Springer Nature Link
Author	Farmer, Bryn M. Wilson, Shaun K.
Copyright Year	2010
Abstract	Detailed information of fish diets is required if we are to understand complex interactions between species and successfully manage resources at an ecosystem level. We compiled diet information from 76 species of fish targeted by recreational and commercial fishers in North West Australia. Based on 81 independent studies we demonstrate that species targeted by the fishery are all carnivores, however the type of prey they consume and their trophic level is variable (3.31–4.49) and trophic range of some species spans different trophic levels (e.g. Lethrinus nebulosus, 3.46–4.35). These findings infer that in highly diverse systems, such as coral reefs, trophic cascades instigated by fishing must be investigated at the species, rather than functional or trophic level. Moreover, as prey availability is likely to vary spatially and temporally, diet must be quantified locally to assess ecosystem level impacts of fishing.
Starting Page	71
Ending Page	85
Page Count	15
File Format	PDF
ISSN	03781909
Journal	Environmental Biology of Fishes
Volume Number	91
Issue Number	1
e-ISSN	15735133
Language	English
Publisher	Springer Netherlands
Publisher Date	2010-12-03
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Trophic cascades Predator prey relationships Coral reefs Ecosystem based management Animal Systematics/Taxonomy/Biogeography Nature Conservation Environment Freshwater & Marine Ecology Zoology
Content Type	Text
Resource Type	Article
Subject	Aquatic Science Ecology, Evolution, Behavior and Systematics

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