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The occurrence and diet of fishes in a tidal inlet to a saltmarsh in southern Moreton Bay, Queensland

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Morton, R.M., Pollock, B.R. and Beumer, J.P. (1987) The occurrence and diet of fishes in a tidal inlet to a saltmarsh in southern Moreton Bay, Queensland. Australian Journal of Ecology, 12 (3). pp. 217-237. ISSN 0307-692X

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Article Link: https://doi.org/10.1111/j.1442-9993.1987.tb00945.x


The fishes occurring in the main tidal inlet to a typical saltmarsh situated in southern Moreton Bay were studied from January to December 1984. The aim of the study was to determine the type of fishes and their feeding habits within the inlet, particularly for species of economic importance. Sampling was conducted at night on the full and new moon phases, and during the day on the full moon phase. A total of 19 species were recorded from the inlet, of which 11 are of economic importance. Six species were considered common. Most fish which entered the inlet were juveniles. The diversity of the fish assemblage from the inlet was low when compared with findings of other studies conducted in Australian subtidal mangrove areas. Diel differences in the sire offish entering the inlet were recorded for several species. Two mark-recapture programmes were conducted to investigate short-term utilization of the saltmarsh by fishes. Recapture rates indicated that individuals of some species regularly utilized the saltmarsh. The most abundant species from the inlet were predominantly benthic feeders although one species fed on plankton. Terrestrial foods formed an important part of the diet of some fishes. The inlet serves as a feeding area for certain species although it is unlikely that these species rely exclusively upon the area. Future management of saltmarsh areas should include protection and maintenance of tidal inlets wherever possible.

Item Type:Article
Subjects:Aquaculture and Fisheries > Aquaculture > Feeding
Aquaculture and Fisheries > Fisheries > Fishery research
Live Archive:14 Feb 2024 03:26
Last Modified:14 Feb 2024 03:26

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