Diel, seasonal, regional and annual variations in the characteristics of the ichthyofauna of the upper reaches of a large Australian microtidal estuary

Hoeksema, Steeg D.; Potter, I. C.

doi:10.1016/j.ecss.2005.12.003

Cited by 44 publications

(32 citation statements)

References 41 publications

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“…This increase in both number of species and total density of fish at night is consistent with that recorded in the upper reaches of this system and other estuaries (Gray et al, 1998;Griffiths, 2001;Hoeksema and Potter, 2006;Young et al, 1997) and has been related to predator-prey interactions and feeding-related movements (Yeoh et al, 2017).…”

Section: Fish Faunal Compositionsupporting

confidence: 67%

“…The densities of three species of atherinids increased markedly at night, which is thought to occur in response to the threat of predation by piscivorous birds, e.g. the cormorant Phalacrocorax sulcirostris (Hoeksema and Potter, 2006;Trayler et al, 1989). The apogonid O. rueppellii also made a significant contribution to the teleost fauna, and its densities also increased at night.…”

Section: Fish Faunal Compositionmentioning

confidence: 99%

“…Although diel changes in fish composition have been recorded in several estuaries in temperate southwestern Australia, with different species being more abundant at one time of day/night, the trends are not consistent across estuaries (c.f. Hoeksema and Potter, 2006;Yeoh et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Estimating predation rates of restocked individuals: The influence of timing-of-release on metapenaeid survival

et al. 2018

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The success of aquaculture-based enhancement programs is greatly influenced by the survival of released individuals. Immediate post-release mortality through predation is one of the greatest obstacles to the success of releases, and the choice of a release site or time-of-release can be critical in maximising survival. This paper develops a novel quantitative method of estimating predation rate to inform release programs, and describes its use in determining whether hatchery-reared Western School Prawns Metapenaeus dalli should be released into the Swan-Canning Estuary in temperate south-western Australia during the night or day. and Atherinomorus vaigiensis (Atherinidae), were responsible for ~99 % of the predation, and that the total number of postlarval prawns consumed was 288 % higher at night than in the day. These findings suggest that releasing M. dalli during the day will greatly reduce predation and consequently allow a greater survival rate at this release site. The simple methodology developed here could be readily employed to inform release strategies for other species.

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Section: Fish Faunal Compositionsupporting

confidence: 67%

Section: Fish Faunal Compositionmentioning

confidence: 99%

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Estimating predation rates of restocked individuals: The influence of timing-of-release on metapenaeid survival

et al. 2018

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“…However, based on catches of wild fish it is assumed many of the fish live until at least the beginning of their fourth year of life. In south-western Australia yellowtail trumpeter are essentially confined to estuaries, including the SCE Wise et al, 1994;Hoeksema and Potter, 2006). In the SCE the main dietary items of juvenile yellowtail trumpeter include planktonic crustaceans such as the calanoid copepod Gladioferans imparipes and crab zoea.…”

Section: Introductionmentioning

confidence: 99%

Hepatic metabolism of contaminants in the terapontid fish, yellowtail trumpeter (Amniataba caudavittata Richardson)

Webb

Gagnon

Rose

2008

Environmental Toxicology

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The yellowtail trumpeter (Amniataba caudavittata) is an estuarine-dependent omnivorous fish found in the Swan-Canning Estuary, Western Australia. Thirty five fish were injected with either the polycyclic aromatic hydrocarbon, benzo[a]pyrene (B[a]P), the synthetic flavenoid b-naphthoflavone (BNF), or used as controls. The fish were then sampled at 3 and 7 days postinjection. Induction of the enzyme ethoxyresorufin O-deethylase (EROD) activity was nonsignificant while ethoxycoumarin O-deethylase (ECOD) activity induction differed amongst treatments. A high interindividual variability in the EROD activity was observed. The measurement of sorbitol dehydrogenase in the serum (s-SDH) was elevated (BNF 2.2 times and B[a]P 3.2 times the control fish) demonstrating that liver cell damage had occurred. Increases in biliary metabolites of both B[a]P-type and pyrene-type (19 times and 3.4 times the controls respectively) indicated that detoxification of pyrene-type compounds had taken place. Fish of the Terapontidae family, such as the yellowtail trumpeter, were found to be suitable for biomonitoring the health of the Swan-Canning Estuary. A combination of ECOD activity, s-SDH, and the measurement of biliary metabolites represents a suitable suite of biomarkers for environmental monitoring of the sublethal effects of PAH pollution in these fish. # 2008 Wiley Periodicals, Inc. Environ Toxicol 23: 68-76, 2008

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“…These changes reflect seasonal variations in water quality (e.g. salinity and 529 temperature) due largely to highly seasonal rainfall and freshwater discharge into the 530 estuary, as well as differences in the timing of the reproductive cycles and juvenile 531 recruitment of different fish species (Loneragan et al, 1989;Loneragan and Potter, 1990; 532 Hoeksema & Potter, 2006). Fish community composition in the bloom period and region 533 was, however, clearly distinct from that in all other period×region combinations, and 534 second-stage nMDS ordination further showed that the inter-regional similarities in fish 535 composition during the bloom were highly dissimilar to any of those in the standard 536 seasonal cycle from summer to spring.…”

Section: Introduction 32 33mentioning

confidence: 99%

Effects of a harmful algal bloom on the community ecology, movements and spatial distributions of fishes in a microtidal estuary

et al. 2015

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Western Australia. The combined evidence suggests that a large proportion of the more 18 mobile fish species in the offshore waters of the bloom-affected area relocated to other 19 regions during the bloom. This was indicated by marked declines in mean species richness, 20 catch rates and FCI scores in the bloom region but concomitant increases in these 21 characteristics in more distal regions, and by pronounced and atypical shifts in the pattern 22 of inter-regional similarities in fish community composition during the bloom. The lack of 23 any significant changes among the nearshore fish communities revealed that bloom 24 1 Present address: Swan River Trust,

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Diel, seasonal, regional and annual variations in the characteristics of the ichthyofauna of the upper reaches of a large Australian microtidal estuary

Cited by 44 publications

References 41 publications

Estimating predation rates of restocked individuals: The influence of timing-of-release on metapenaeid survival

Estimating predation rates of restocked individuals: The influence of timing-of-release on metapenaeid survival

Hepatic metabolism of contaminants in the terapontid fish, yellowtail trumpeter (Amniataba caudavittata Richardson)

Effects of a harmful algal bloom on the community ecology, movements and spatial distributions of fishes in a microtidal estuary

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