Diets and trophic guilds of demersal fishes of the south-eastern Australian shelf
By C. Bulman, F. Althaus, X. He, N. Bax, Alan Williams. 2001
121 citations recorded by the source corpus.
A total of 8200 stomach samples was collected from 102 fish species caught by trawl or gillnet during research surveys on the south-eastern Australian shelf from 1993 to 1996. Diet compositions were analysed based on percentages of wet weight of prey. Of the total fish examined, 70 species had sufficient stomach samples (i.e. >10) for further analysis. Ten trophic guilds were identified from cluster analysis. Benthic prey dominated the diets. However, analysis on a subset of 28 abundant species that were commercially and ecologically important, showed that pelagic prey was dominant, particularly for 12 quota species. This suggests that pelagic production contributes significantly to the trawl fishery production. Further analysis on the diets of these 28 species found that although fish was more important than invertebrate prey, there was no evidence of significant predation on commercially important species (quota species) by other fish species. A food web diagram was constructed, mostly based on the diet compositions, guild structure and relative abundance of commercially and ecologically important fish species, to show major trophic interactions of the shelf ecosystem.
Subfields: Global and Planetary Change, Nature and Landscape Conservation
View Paper: https://www.semanticscholar.org/paper/1554d8b3f3526845ca7d566783342353a7c09284
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In Global and Planetary Change
In Nature and Landscape Conservation
Citations in the corpus
- Standardized diet compositions and trophic levels of skates (Chondrichthyes: Rajiformes: Rajoidei) (2007, background): “This finding is consistent with other studies that reveal skates to be primarily benthopelagic piscivores or epibenthic predators specializing on invertebrates and small crustaceans (Garrison and Link 2000; Bulman et al. 2001; Davenport and Bax 2002).”
- A trophic study of a marine ecosystem off southeastern Australia using stable isotopes of carbon and nitrogen (2002, background): “Group-5 fish are small, with one exception (butterfly mackerel), mostly lanternfish, that feed either on zooplankton or on fish that feed on zooplankton (Collette and Nauen 1983; Young and Blaber 1986; Bulman et al. 2001).”
- Comparison of morphological and DNA metabarcoding analyses of diets in exploited marine fishes (2015, methodology): “…that was visually identifiable had been eaten by H. percoides in a study on the eastern Tasmania slope (Blaber & Bulman 1987) but had not been identified from H. percoides from the Eastern Bass Strait shelf either in the 1990s or in the present study (Bulman et al. 2001, C. Bulman unpubl. data).”