A study into the export of saline water from Hervey Bay, Australia

Ribbe, Joachim

doi:10.1016/j.ecss.2005.10.012

Cited by 24 publications

(27 citation statements)

References 19 publications

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“…the inner-shelf, run-off from the major rivers in the region (e.g. Mary River discharging into Hervey Bay, see Ribbe, 2006) could cause sporadic high Chl-a events due to the supply of nutrients from terrestrial sources in the catchment systems and from coastal mangrove regions. Mostly, the flow of this water is limited to an inner-shelf zone of <10km along the western shoreline, but is likely contributing to the near shore high Chl-a concentrations shown in all months.…”

Section: Monthly Climatological Chl-a Concentrationmentioning

confidence: 99%

“…In addition to upwellingdriven surface layer nutrient enhancement leading to Chl-a blooms, it is noted that, north-and southeast of Fraser Island, surface water nutrient enrichment has other potential sources. These include tidal flushing and advective export of high-nutrient coastal mangrove water (Middleton et al, 1994), densitydriven outflows of Hervey Bay Water (Ribbe, 2006), river-runoff (Pearce et al, 2006;Brodie et al, 2010), and dust storms (e.g. Gabric et al, 2010).…”

Section: Description Of the Study Sitementioning

confidence: 99%

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Is the East Australian Current causing a marine ecological hot-spot and an important fisheries near Fraser Island, Australia?

Brieva

Ribbe

Lemckert

2015

Estuarine, Coastal and Shelf Science

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The distributions of Chlorophyll-a (Chl-a) blooms near the Fraser Island continental shelf along the east coast of Australia were analysed for the period 2002-2012. The blooms were found to exhibit two distinct quasiclimatological patterns. The first pattern was a broad near-coast mid-shelf distribution that prevailed from about March to July each year. The second pattern was established due to re-occurring outer-shelf Chl-a blooms southeast of Fraser Island from about August to February. The outer-shelf Chl-a bloom concentration maxima appeared to be higher than those associated with the near coast pattern. Both distributions were found to be characterised by significant year-to-year variability in the number of total blooms, the length of blooms and the Chl-a bloom concentration maxima. The physical cause of the outer-shelf Chl-a concentration maxima was of particular interest, since this location overlaps with a region previously identified as a key eastern Australian marine ecological site and important fisheries. In this analysis, we found that the area also overlaps with a hot-spot in EAC-generated bottom layer stress, which appears to be the main driver of the "Southeast Fraser Island Upwelling System".

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Section: Monthly Climatological Chl-a Concentrationmentioning

confidence: 99%

Section: Description Of the Study Sitementioning

confidence: 99%

Is the East Australian Current causing a marine ecological hot-spot and an important fisheries near Fraser Island, Australia?

Brieva

Ribbe

Lemckert

2015

Estuarine, Coastal and Shelf Science

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“…Recent studies have also suggested that Hervey Bay (Queensland) has inverse salinity throughout most of the year and that such conditions may persist with drought (Ribbe 2006;Gräwe et al 2010). Inverse salinity in northern Australia is likely only during the dry season and will depend on rainfall changes associated with climate change.…”

Section: Future Scenarios Of Climate Change In Estuariesmentioning

confidence: 99%

Potential effects of climate change on Australian estuaries and fish utilising estuaries: a review

Gillanders

Elsdon

Halliday

et al. 2011

Mar. Freshwater Res.

213

141

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Abstract. Estuaries are especially vulnerable to the impacts of climate change because changes in climatic and hydrologic variables that influence freshwater and marine systems will also affect estuaries. We review potential impacts of climate change on Australian estuaries and their fish. Geographic differences are likely because southern Australian climates are predicted to become warmer and drier, whereas northern regions may see increased precipitation. Environmental factors, including salinity gradients, suspended sediment, dissolved oxygen and nutrient concentrations, will be influenced by changing freshwater input and other climate variables. Potential impacts will vary depending on the geomorphology of the estuary and the level of build-up of sand bars across estuarine entrances. Changes to estuarine fish assemblages will depend on associated changes to salinity and estuarine-mouth morphology. Marine migrants may be severely affected by closure of estuarine mouths, depending on whether species 'must' use estuarine habitat and the level of migratory v. resident individuals. Depending on how fish in coastal waters locate estuaries, there may be reduced cues associated with estuarine mouths, particularly in southern Australia, potentially influencing abundance. In summary, climate change is expected to have major consequences for Australian estuaries and associated fish, although the nature of impacts will show significant regional variation.

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“…Improved knowledge of these time scales assists in evaluating the water quality of coastal environments and can be utilised in sustainable marine resource management. Results from simulations with climatological September forcing are presented and compared to cruise data reported by Ribbe (2006). A series of simulations using idealised forcing provides detailed insight into water renewal pathways and regional differences in renewal timescales.…”

Section: Introductionmentioning

confidence: 99%

Assessing water renewal time scales for marine environments from three-dimensional modelling: A case study for Hervey Bay, Australia

Ribbe

Wolff

Staneva

et al. 2008

Environmental Modelling & Software

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We apply the three-dimensional COupled Hydrodynamical Ecological model for REgioNal Shelf Seas (COHERENS) to compute water renewal time scales for Hervey Bay, a large coastal embayment situated off the central eastern coast of Australia. Water renewal time scales are not directly observable but are derived indirectly from computational studies. Improved knowledge of these time scales assists in evaluating the water quality of coastal environments and can be utilised in sustainable marine resource management. Results from simulations with climatological September forcing are presented and compared to cruise data reported by Ribbe (2006). A series of simulations using idealised forcing provides detailed insight into water renewal pathways and regional differences in renewal timescales. We find that more than 85 % of the coastal embayment's water is fully renewed within about 50-80 days. The eastern and western shallow coastal regions are ventilated more rapidly than the central, deeper part of the domain. The climatological simulation yields temperature and salinity patterns that are consistent with the observed situation and water renewal times scales in the range of those derived from idealised model studies. While the reported simulations involve many simplifications, the global assessment of the renewal time scale is in the range of a previous estimate derived for this coastal embayment from a simpler model and observational data.

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A study into the export of saline water from Hervey Bay, Australia

Cited by 24 publications

References 19 publications

Is the East Australian Current causing a marine ecological hot-spot and an important fisheries near Fraser Island, Australia?

Is the East Australian Current causing a marine ecological hot-spot and an important fisheries near Fraser Island, Australia?

Potential effects of climate change on Australian estuaries and fish utilising estuaries: a review

Assessing water renewal time scales for marine environments from three-dimensional modelling: A case study for Hervey Bay, Australia

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