Climate affects fish-kill events in subtropical estuaries of eastern Australia
Vanessa N. L. Wong A C , Simon Walsh B and Stephen Morris BA School of Earth, Atmosphere and Environment, Monash University, Wellington Road, Clayton, Vic. 3800, Australia.
B Wollongbar Primary Industries Institute, New South Wales Department of Primary Industries, 1243 Bruxner Highway, Wollongbar, NSW 2477, Australia.
C Corresponding author. Email: vanessa.wong@monash.edu
Marine and Freshwater Research 69(11) 1641-1648 https://doi.org/10.1071/MF17307
Submitted: 28 February 2017 Accepted: 11 April 2018 Published: 23 July 2018
Abstract
Fish kills following austral summer flood events (November–March) occur episodically in estuarine channels in Australia. We examined the climatic conditions associated with the historic record of such events in a subtropical region in eastern Australia to determine the effect of antecedent weather conditions on the probability of post-flood fish-kill events. Records, including regional county council logs, newspapers and New South Wales Fisheries annual reports, were analysed for reports of floods and fish kills following these events. Daily rainfall patterns preceding floods with fish-kill events tended to be drier than rainfall patterns preceding floods when a fish kill did not occur. Based on these observations, it is proposed that estuarine hypoxia resulting in a fish kill is increased by prolonged dry periods followed by rapid and intensive rainfall preceding the flood peak. This is most likely due to (i) accumulation of organic material on the floodplain due to vegetation stress and reduced decomposition processes in drier conditions; (ii) upstream migration of the salt wedge, allowing some estuarine fish species to maintain an optimum environment, followed by flooding with (iii) rapid consumption of dissolved oxygen during decomposition of accumulated organic material sourced from senescent vegetation; and (iv) fish becoming trapped upstream in discharging hypoxic floodwater during the flood recession phase.
Additional keywords: blackwater, drought, fish kill, flood, hypoxia, rainfall.
References
Arend, K. K., Beletsky, D., DePinto, J. V., Ludsin, S. A., Roberts, J. J., Rucinski, D. K., Scavia, D., Schwab, D. J., and Höök, T. O. (2011). Seasonal and interannual effects of hypoxia on fish habitat quality in central Lake Erie. Freshwater Biology 56, 366–383.| Seasonal and interannual effects of hypoxia on fish habitat quality in central Lake Erie.Crossref | GoogleScholarGoogle Scholar |
Attrill, M. J., and Power, M. (2000). Modelling the effect of drought on estuarine water quality. Water Research 34, 1584–1594.
| Modelling the effect of drought on estuarine water quality.Crossref | GoogleScholarGoogle Scholar |
Baldwin, D. S. (1999). Dissolved organic matter and phosphorus leached from fresh and ‘terrestrially’ aged river red gum leaves: implications for assessing river-floodplain interactions. Freshwater Biology 41, 675–685.
| Dissolved organic matter and phosphorus leached from fresh and ‘terrestrially’ aged river red gum leaves: implications for assessing river-floodplain interactions.Crossref | GoogleScholarGoogle Scholar |
Baldwin, D. S., and Mitchell, A. M. (2000). The effects of drying and re-flooding on the sediment and soil nutrient dynamics of lowland river-floodplain systems: a synthesis. Regulated Rivers: Research and Management 16, 457–467.
| The effects of drying and re-flooding on the sediment and soil nutrient dynamics of lowland river-floodplain systems: a synthesis.Crossref | GoogleScholarGoogle Scholar |
Bath, M. (2017). Lismore floods: Wilsons River flood heights and Lismore flood pictures. Richmond River Catchment Northeast NSW. In Storm News: Floods. Available at http://australiasevereweather.com/floods/lismore_flood_pictures_reports.htm [Verified 16 February 2018].
Becker, A., Laurenson, L. J. B., and Bishop, K. (2009). Artificial mouth opening fosters anoxic conditions that kill small estuarine fish. Estuarine, Coastal and Shelf Science 82, 566–572.
| Artificial mouth opening fosters anoxic conditions that kill small estuarine fish.Crossref | GoogleScholarGoogle Scholar |
Bianchi, T. S., DiMarco, S. F., Cowan, J. H., Hetland, R. D., Chapman, P., Day, J. W., and Allison, M. A. (2010). The science of hypoxia in the Northern Gulf of Mexico: a review. The Science of the Total Environment 408, 1471–1484.
| The science of hypoxia in the Northern Gulf of Mexico: a review.Crossref | GoogleScholarGoogle Scholar |
Boyero, L., Pearson, R. G., Gessner, M. O., Barmuta, L. A., Ferreira, V., Graça, M. A. S., Dudgeon, D., Boulton, A. J., Callisto, M., Chauvet, E., Helson, J. E., Bruder, A., Albariño, R. J., Yule, C. M., Arunachalam, M., Davies, J. N., Figueroa, R., Flecker, A. S., Ramírez, A., Death, R. G., Iwata, T., Mathooko, J. M., Mathuriau, C., Gonçalves, J. F., Moretti, M. S., Jinggut, T., Lamothe, S., M’Erimba, C., Ratnarajah, L., Schindler, M. H., Castela, J., Buria, L. M., Cornejo, A., Villanueva, V. D., and West, D. C. (2011). A global experiment suggests climate warming will not accelerate litter decomposition in streams but might reduce carbon sequestration. Ecology Letters 14, 289–294.
| A global experiment suggests climate warming will not accelerate litter decomposition in streams but might reduce carbon sequestration.Crossref | GoogleScholarGoogle Scholar |
Breitburg, D. (2002). Effects of hypoxia, and the balance between hypoxia and enrichment, on coastal fishes and fisheries. Estuaries and Coasts 25, 767–781.
| Effects of hypoxia, and the balance between hypoxia and enrichment, on coastal fishes and fisheries.Crossref | GoogleScholarGoogle Scholar |
Callaghan, J., and Power, S. B. (2014). Major coastal flooding in southeastern Australia 1860–2012, associated deaths and weather systems. Australian Meteorological and Oceanographic Journal 64, 183–213.
| Major coastal flooding in southeastern Australia 1860–2012, associated deaths and weather systems.Crossref | GoogleScholarGoogle Scholar |
Chanson, H. (2008). Field observations in a small subtropical estuary during and after a rainstorm event. Estuarine, Coastal and Shelf Science 80, 114–120.
| Field observations in a small subtropical estuary during and after a rainstorm event.Crossref | GoogleScholarGoogle Scholar |
Conley, D. J., Carstensen, J., Ãrtebjerg, G., Christensen, P. B., Dalsgaard, T., Hansen, J. L. S., and Josefson, A. B. (2007). Long-term changes and impacts of hypoxia in Danish coastal waters. Ecological Applications 17, S165–S184.
| Long-term changes and impacts of hypoxia in Danish coastal waters.Crossref | GoogleScholarGoogle Scholar |
Conley, D., Carstensen, J., Vaquer-Sunyer, R., and Duarte, C. (2009). Ecosystem thresholds with hypoxia. Hydrobiologia 629, 21–29.
| Ecosystem thresholds with hypoxia.Crossref | GoogleScholarGoogle Scholar |
Diaz, R. J. (2001). Overview of hypoxia around the world. Journal of Environmental Quality 30, 275–281.
| Overview of hypoxia around the world.Crossref | GoogleScholarGoogle Scholar |
Diaz, R. J. (2016). Anoxia, hypoxia, and dead zones. In ‘Encyclopedia of Estuaries’. (Ed. M. J. Kennish.) pp. 19–29. (Springer Netherlands: Dordrecht, Netherlands.)
Diaz, R. J., and Rosenberg, R. (2008). Spreading dead zones and consequences for marine ecosystems. Science 321, 926–929.
| Spreading dead zones and consequences for marine ecosystems.Crossref | GoogleScholarGoogle Scholar |
Eyre, B. D., Kerr, G., and Sullivan, L. A. (2006). Deoxygenation potential of the Richmond River Estuary floodplain, northern NSW, Australia. River Research and Applications 22, 981–992.
| Deoxygenation potential of the Richmond River Estuary floodplain, northern NSW, Australia.Crossref | GoogleScholarGoogle Scholar |
Ficke, A., Myrick, C., and Hansen, L. (2007). Potential impacts of global climate change on freshwater fisheries. Reviews in Fish Biology and Fisheries 17, 581–613.
| Potential impacts of global climate change on freshwater fisheries.Crossref | GoogleScholarGoogle Scholar |
Gillanders, B., and Kingsford, M. (2002). Impact of changes in flow of freshwater on estuarine and open coastal habitats and the associated organisms. Oceanography and Marine Biology – an Annual Review 40, 233–309.
| Impact of changes in flow of freshwater on estuarine and open coastal habitats and the associated organisms.Crossref | GoogleScholarGoogle Scholar |
Gillanders, B. M., Elsdon, T. S., Halliday, I. A., Jenkins, G. P., Robins, J. B., and Valesini, F. J. (2011). Potential effects of climate change on Australian estuaries and fish utilising estuaries: a review. Marine and Freshwater Research 62, 1115–1131.
| Potential effects of climate change on Australian estuaries and fish utilising estuaries: a review.Crossref | GoogleScholarGoogle Scholar |
Glade, T., Albini, T., and Frances, P. (2001). ‘The Use of Historical Data in Natural Hazard Assessments.’ (Springer: Dordrecht, Netherlands.)
Hamilton, S. K., Sippel, S. J., Calheiros, D. F., and Melack, J. M. (1997). An anoxic event and other biogeochemical effects of the pantanal wetland on the Paraguay River. Limnology and Oceanography 42, 257–272.
| An anoxic event and other biogeochemical effects of the pantanal wetland on the Paraguay River.Crossref | GoogleScholarGoogle Scholar |
Harris, L., Duarte, C., and Nixon, S. (2006). Allometric laws and prediction in estuarine and coastal ecology. Estuaries and Coasts 29, 340–344.
| Allometric laws and prediction in estuarine and coastal ecology.Crossref | GoogleScholarGoogle Scholar |
Hennessy, K., Page, C., McInnes, K., Jones, R., Bathols, J., Collins, D., and Jones, D. (2004) ‘Climate Change in New South Wales.’ (CSIRO: Canberra, ACT, Australia.)
Hladyz, S., Watkins, S. C., Whitworth, K. L., and Baldwin, D. S. (2011). Flows and hypoxic blackwater events in managed ephemeral river channels. Journal of Hydrology 401, 117–125.
| Flows and hypoxic blackwater events in managed ephemeral river channels.Crossref | GoogleScholarGoogle Scholar |
Howitt, J. A., Baldwin, D. S., Rees, G. N., and Williams, J. L. (2007). Modelling blackwater: predicting water quality during flooding of lowland river forests. Ecological Modelling 203, 229–242.
| Modelling blackwater: predicting water quality during flooding of lowland river forests.Crossref | GoogleScholarGoogle Scholar |
Hrycik, A. R., Almeida, L. Z., and Höök, T. O. (2017). Sub-lethal effects on fish provide insight into a biologically relevant threshold of hypoxia. Oikos 126, 307–317.
| Sub-lethal effects on fish provide insight into a biologically relevant threshold of hypoxia.Crossref | GoogleScholarGoogle Scholar |
Jeffrey, S. J., Carter, J. O., Moodie, K. B., and Beswick, A. R. (2001). Using spatial interpolation to construct a comprehensive archive of Australian climate data. Environmental Modelling & Software 16, 309–330.
| Using spatial interpolation to construct a comprehensive archive of Australian climate data.Crossref | GoogleScholarGoogle Scholar |
Johnston, S. G., Slavich, P. G., Sullivan, L. A., and Hirst, P. (2003a). Artificial drainage of floodwaters from sulfidic backswamps: effects on deoxygenation in an Australian estuary. Marine and Freshwater Research 54, 781–795.
| Artificial drainage of floodwaters from sulfidic backswamps: effects on deoxygenation in an Australian estuary.Crossref | GoogleScholarGoogle Scholar |
Johnston, S. J., Kroon, F., Slavich, P., Cibilic, A., and Bruce, A. (2003b). Restoring the balance: guidelines for managing floodgates and drainage systems on coastal floodplains. NSW Agriculture, Wollongbar, Australia.
Jones, P. D. (2006). Water quality and fisheries in the Mersey estuary, England: a historical perspective. Marine Pollution Bulletin 53, 144–154.
| Water quality and fisheries in the Mersey estuary, England: a historical perspective.Crossref | GoogleScholarGoogle Scholar |
Junk, W. J., Bayley, P. B., and Sparks, R. E. (1989). The flood pulse concept in river–floodplain systems. In ‘Proceedings of the International Large River Symposium’. (Ed. D. P. Dodge.) Vol. 106, pp. 110–127. (Canadian Special Publication for Fish and Aquatic Science: Toronto, ON, Canada.)
Justić, D., Bierman, V., Scavia, D., and Hetland, R. (2007). Forecasting Gulf’s hypoxia: the next 50 years? Estuaries and Coasts 30, 791–801.
| Forecasting Gulf’s hypoxia: the next 50 years?Crossref | GoogleScholarGoogle Scholar |
Kemp, W. M., Testa, J. M., Conley, D. J., Gilbert, D., and Hagy, J. D. (2009). Temporal responses of coastal hypoxia to nutrient loading and physical controls. Biogeosciences 6, 2985–3008.
| Temporal responses of coastal hypoxia to nutrient loading and physical controls.Crossref | GoogleScholarGoogle Scholar |
Kerr, J. L., Baldwin, D. S., and Whitworth, K. L. (2013). Options for managing hypoxic blackwater events in river systems: a review. Journal of Environmental Management 114, 139–147.
| Options for managing hypoxic blackwater events in river systems: a review.Crossref | GoogleScholarGoogle Scholar |
King, A. J., Tonkin, Z., and Lieshcke, J. (2012). Short-term effects of a prolonged blackwater event on aquatic fauna in the Murray River, Australia: considerations for future events. Marine and Freshwater Research 63, 576–586.
| Short-term effects of a prolonged blackwater event on aquatic fauna in the Murray River, Australia: considerations for future events.Crossref | GoogleScholarGoogle Scholar |
Kroon, F. J., and Ludwig, J. A. (2010). Response and recovery of fish and invertebrate assemblages following flooding in five tributaries of a sub-tropical river. Marine and Freshwater Research 61, 86–96.
| Response and recovery of fish and invertebrate assemblages following flooding in five tributaries of a sub-tropical river.Crossref | GoogleScholarGoogle Scholar |
Lough, J. M., and Hobday, A. J. (2011). Observed climate change in Australian marine and freshwater environments. Marine and Freshwater Research 62, 984–999.
| Observed climate change in Australian marine and freshwater environments.Crossref | GoogleScholarGoogle Scholar |
Luther, G., Ma, S., Trouwborst, R., Glazer, B., Blickley, M., Scarborough, R., and Mensinger, M. (2004). The roles of anoxia, H2S, and storm events in fish kills of dead-end canals of Delaware inland bays. Estuaries and Coasts 27, 551–560.
| The roles of anoxia, H2S, and storm events in fish kills of dead-end canals of Delaware inland bays.Crossref | GoogleScholarGoogle Scholar |
McNeil, D. G., and Closs, G. P. (2007). Behavioural responses of a south-east Australian floodplain fish community to gradual hypoxia. Freshwater Biology 52, 412–420.
| Behavioural responses of a south-east Australian floodplain fish community to gradual hypoxia.Crossref | GoogleScholarGoogle Scholar |
Micevski, T., Franks, S. W., and Kuczera, G. (2006). Multidecadal variability in coastal eastern Australian flood data. Journal of Hydrology 327, 219–225.
| Multidecadal variability in coastal eastern Australian flood data.Crossref | GoogleScholarGoogle Scholar |
Moore, A. (1996). ‘Blackwater and Fish Kills in the Richmond River Estuary.’ (Southern Cross University: Lismore, NSW, Australia.)
Naulet, R., Lang, M., Ouarda, T. B. M. J., Coeur, D., Bobée, B., Recking, A., and Moussay, D. (2005). Flood frequency analysis on the Ardèche River using French documentary sources from the last two centuries. Journal of Hydrology 313, 58–78.
| Flood frequency analysis on the Ardèche River using French documentary sources from the last two centuries.Crossref | GoogleScholarGoogle Scholar |
O’Connell, M., Baldwin, D. S., Robertson, A. I., and Rees, G. (2000). Release and bioavailability of dissolved organic matter from floodplain litter: influence of origin and oxygen levels. Freshwater Biology 45, 333–342.
| Release and bioavailability of dissolved organic matter from floodplain litter: influence of origin and oxygen levels.Crossref | GoogleScholarGoogle Scholar |
Passeri, D. L., Hagen, S. C., Medeiros, S. C., Bilskie, M. V., Alizad, K., and Wang, D. (2015). The dynamic effects of sea level rise on low-gradient coastal landscapes: a review. Earth’s Future 3, 159–181.
| The dynamic effects of sea level rise on low-gradient coastal landscapes: a review.Crossref | GoogleScholarGoogle Scholar |
Power, S. B., and Callaghan, J. (2016). Variability in severe coastal flooding, associated storms, and death tolls in southeastern Australia since the mid-nineteenth century. Journal of Applied Meteorology and Climatology 55, 1139–1149.
| Variability in severe coastal flooding, associated storms, and death tolls in southeastern Australia since the mid-nineteenth century.Crossref | GoogleScholarGoogle Scholar |
Pressey, R. L. (1982). Impacts of flood mitigation works on coastal wetlands in New South Wales. Wetlands Australia 2, 27–44.
Qiu, S., McComb, A. J., Bell, R. W., and Davis, J. A. (2005). Response of soil microbial activity to temperature, moisture, and litter leaching on a wetland transect during seasonal refilling. Wetlands Ecology and Management 13, 43–54.
| Response of soil microbial activity to temperature, moisture, and litter leaching on a wetland transect during seasonal refilling.Crossref | GoogleScholarGoogle Scholar |
Ray, G. C. (2005). Connectivities of estuarine fishes to the coastal realm. Estuarine, Coastal and Shelf Science 64, 18–32.
| Connectivities of estuarine fishes to the coastal realm.Crossref | GoogleScholarGoogle Scholar |
Robertson, A. I., Bacon, P., and Heagney, G. (2001). The responses of floodplain primary production to flood frequency and timing. Journal of Applied Ecology 38, 126–136.
| The responses of floodplain primary production to flood frequency and timing.Crossref | GoogleScholarGoogle Scholar |
Rogers, K., Knoll, E. J., Copeland, C., and Walsh, S. (2016). Quantifying changes to historic fish habitat extent on north coast NSW floodplains, Australia. Regional Environmental Change 16, 1469–1479.
| Quantifying changes to historic fish habitat extent on north coast NSW floodplains, Australia.Crossref | GoogleScholarGoogle Scholar |
Sammut, J., White, I., and Melville, M. D. (1995). Estuarine acidification: impacts on aquatic biota of draining acid sulphate soils. Australian Geographical Studies 33, 89–100.
| Estuarine acidification: impacts on aquatic biota of draining acid sulphate soils.Crossref | GoogleScholarGoogle Scholar |
Sharp, J., Yoshiyama, K., Parker, A., Schwartz, M., Curless, S., Beauregard, A., Ossolinski, J., and Davis, A. (2009). A biogeochemical view of estuarine eutrophication: seasonal and spatial trends and correlations in the Delaware Estuary. Estuaries and Coasts 32, 1023–1043.
| A biogeochemical view of estuarine eutrophication: seasonal and spatial trends and correlations in the Delaware Estuary.Crossref | GoogleScholarGoogle Scholar |
Small, K., Kopf, R. K., Watts, R. J., and Howitt, J. (2014). Hypoxia, blackwater and fish kills: experimental lethal oxygen thresholds in juvenile predatory lowland river fishes. PLoS One 9, e94524.
| Hypoxia, blackwater and fish kills: experimental lethal oxygen thresholds in juvenile predatory lowland river fishes.Crossref | GoogleScholarGoogle Scholar |
Smith, J., Burford, M., Revill, A., Haese, R., and Fortune, J. (2012). Effect of nutrient loading on biogeochemical processes in tropical tidal creeks. Biogeochemistry 108, 359–380.
| Effect of nutrient loading on biogeochemical processes in tropical tidal creeks.Crossref | GoogleScholarGoogle Scholar |
Steffe, A. S., Macbeth, W. G., and Murphy, J. J. (2007). Status of the recreational fisheries in two Australian coastal estuaries following large fish-kill events. Fisheries Research 85, 258–269.
| Status of the recreational fisheries in two Australian coastal estuaries following large fish-kill events.Crossref | GoogleScholarGoogle Scholar |
Strydom, N. A., Whitfield, A. K., and Paterson, A. W. (2002). Influence of altered freshwater flow regimes on abundance of larval and juvenile Gilchristella aestuaria (Pisces : Clupeidae) in the upper reaches of two South African estuaries. Marine and Freshwater Research 53, 431–438.
| Influence of altered freshwater flow regimes on abundance of larval and juvenile Gilchristella aestuaria (Pisces : Clupeidae) in the upper reaches of two South African estuaries.Crossref | GoogleScholarGoogle Scholar |
Thronson, A., and Quigg, A. (2008). Fifty-five years of fish kills in coastal Texas. Estuaries and Coasts 31, 802–813.
| Fifty-five years of fish kills in coastal Texas.Crossref | GoogleScholarGoogle Scholar |
Townsend, S. A. (1999). The seasonal pattern of dissolved oxygen, and hypolimnetic deoxygenation, in two tropical Australian reservoirs. Lakes and Reservoirs: Research and Management 4, 41–53.
| The seasonal pattern of dissolved oxygen, and hypolimnetic deoxygenation, in two tropical Australian reservoirs.Crossref | GoogleScholarGoogle Scholar |
Townsend, S. A., and Edwards, C. A. (2003). A fish kill event, hypoxia and other limnological impacts associated with early wet season flow into a lake on the Mary River floodplain, tropical northern Australia. Lakes and Reservoirs: Research and Management 8, 169–176.
| A fish kill event, hypoxia and other limnological impacts associated with early wet season flow into a lake on the Mary River floodplain, tropical northern Australia.Crossref | GoogleScholarGoogle Scholar |
Townsend, S. A., Boland, K. T., and Wrigley, T. J. (1992). Factors contributing to a fish kill in the Australian wet/dry tropics. Water Research 26, 1039–1044.
| Factors contributing to a fish kill in the Australian wet/dry tropics.Crossref | GoogleScholarGoogle Scholar |
Trimble, S. W. (2008). The use of historical data and artifacts in geomorphology. Progress in Physical Geography 32, 3–29.
| The use of historical data and artifacts in geomorphology.Crossref | GoogleScholarGoogle Scholar |
Tulau, M. J. (1999). ‘Acid Sulfate Soil Management Priority Areas in the Lower Richmond Floodplain.’ (Department of Land and Water Conservation: Sydney, NSW, Australia.)
Valett, H. M., Baker, M. A., Morrice, J. A., Crawford, C. S., Molles, M. C., Dahm, C. N., Moyer, D. L., Thibault, J. R., and Ellis, L. M. (2005). Biogeochemical and metabolic responses to the flood pulse in a semiarid floodplain. Ecology 86, 220–234.
| Biogeochemical and metabolic responses to the flood pulse in a semiarid floodplain.Crossref | GoogleScholarGoogle Scholar |
Vaquer-Sunyer, R., and Duarte, C. M. (2008). Thresholds of hypoxia for marine biodiversity. Proceedings of the National Academy of Sciences of the United States of America 105, 15452–15457.
| Thresholds of hypoxia for marine biodiversity.Crossref | GoogleScholarGoogle Scholar |
Vijith, V., Sundar, D., and Shetye, S. R. (2009). Time-dependence of salinity in monsoonal estuaries. Estuarine, Coastal and Shelf Science 85, 601–608.
| Time-dependence of salinity in monsoonal estuaries.Crossref | GoogleScholarGoogle Scholar |
Walsh, S., Copeland, C., and Westlake, M. (2004). Major fish kills in the northern rivers of New South Wales in 2001: causes, impacts and responses. New South Wales Department of Primary Industries, Ballina, NSW, Australia.
Wang, H., Dai, M., Liu, J., Kao, S.-J., Zhang, C., Cai, W.-J., Wang, G., Qian, W., Zhao, M., and Sun, Z. (2016). Eutrophication-driven hypoxia in the East China Sea off the Changjiang Estuary. Environmental Science & Technology 50, 2255–2263.
| Eutrophication-driven hypoxia in the East China Sea off the Changjiang Estuary.Crossref | GoogleScholarGoogle Scholar |
Wetz, M. S., Hutchinson, E. A., Lunetta, R. S., Paerl, H. W., and Taylor, J. C. (2011). Severe droughts reduce estuarine primary productivity with cascading effects on higher trophic levels. Limnology and Oceanography 56, 627–638.
| Severe droughts reduce estuarine primary productivity with cascading effects on higher trophic levels.Crossref | GoogleScholarGoogle Scholar |
Whitworth, K. L., Baldwin, D. S., and Kerr, J. L. (2012). Drought, floods and water quality: drivers of a severe hypoxic blackwater event in a major river system (the southern Murray–Darling Basin, Australia). Journal of Hydrology 450–451, 190–198.
| Drought, floods and water quality: drivers of a severe hypoxic blackwater event in a major river system (the southern Murray–Darling Basin, Australia).Crossref | GoogleScholarGoogle Scholar |
Wong, V. N. L., Johnston, S. G., Bush, R. T., Sullivan, L. A., Clay, C., Burton, E. D., and Slavich, P. G. (2010). Spatial and temporal changes in estuarine water quality during a post-flood hypoxic event. Estuarine, Coastal and Shelf Science 87, 73–82.
| Spatial and temporal changes in estuarine water quality during a post-flood hypoxic event.Crossref | GoogleScholarGoogle Scholar |
Wong, V. N. L., Johnston, S. G., Burton, E. D., Bush, R. T., Sullivan, L. A., and Slavich, P. G. (2011). Anthropogenic forcing of estuarine hypoxic events in sub-tropical catchments: landscape drivers and biogeochemical processes. The Science of the Total Environment 409, 5368–5375.
| Anthropogenic forcing of estuarine hypoxic events in sub-tropical catchments: landscape drivers and biogeochemical processes.Crossref | GoogleScholarGoogle Scholar |
Xiong, S., and Nilsson, C. (1997). Dynamics of leaf litter accumulation and its effects on riparian vegetation: a review. Botanical Review 63, 240–264.
| Dynamics of leaf litter accumulation and its effects on riparian vegetation: a review.Crossref | GoogleScholarGoogle Scholar |
Zhang, J., Gilbert, D., Gooday, A. J., Levin, L., Naqvi, S. W. A., Middelburg, J. J., Scranton, M., Ekau, W., Peña, A., Dewitte, B., Oguz, T., Monteiro, P. M. S., Urban, E., Rabalais, N. N., Ittekkot, V., Kemp, W. M., Ulloa, O., Elmgren, R., Escobar-Briones, E., and Van der Plas, A. K. (2010). Natural and human-induced hypoxia and consequences for coastal areas: synthesis and future development. Biogeosciences 7, 1443–1467.
| Natural and human-induced hypoxia and consequences for coastal areas: synthesis and future development.Crossref | GoogleScholarGoogle Scholar |