Environmental Management

, Volume 45, Issue 4, pp 822–833 | Cite as

Spatial and Temporal Patterns in Fish Assemblages Following an Artificially Extended Floodplain Inundation Event, Northern Murray-Darling Basin, Australia



Water extraction from dryland rivers is often associated with declines in the health of river and floodplain ecosystems due to reduced flooding frequency and extent of floodplain inundation. Following moderate flooding in early 2008 in the Narran River, Murray-Darling Basin, Australia, 10,423 ML of water was purchased from agricultural water users and delivered to the river to prolong inundation of its terminal lake system to improve the recruitment success of colonial waterbirds that had started breeding in response to the initial flooding. This study examined the spatial and temporal patterns of fish assemblages in river and floodplain habitats over eight months following flooding to assess the possible ecological benefits of flood extension. Although the abundances of most fish species were greater in river channel habitats, the fish assemblage used floodplain habitats when inundated. Young-of-the-year (4–12 months age) golden perch (Macquaria ambigua) and bony bream (Nematalosa erebi) were consistently sampled in floodplain sites when inundated, suggesting that the floodplain provides rearing habitat for these species. Significant differences in the abundances of fish populations between reaches upstream and downstream of a weir in the main river channel indicates that the effectiveness of the environmental water release was limited by restricted connectivity within the broader catchment. Although the seasonal timing of flood extension may have coincided with sub-optimal primary production, the use of the environmental water purchase is likely to have promoted recruitment of fish populations by providing greater access to floodplain nursery habitats, thereby improving the ability to persist during years of little or no flow.


Habitat use Migratory barriers Environmental flows Floodplain rivers Murray-Darling Basin Recruitment 


  1. Anderson MJ (2001) A new method for non-parametric multivariate analysis of variance. Austral Ecology 26:32–46CrossRefGoogle Scholar
  2. Anderson MJ, Gorley RN, Clarke KR (2008) PERMANOVA+ for PRIMER: guide to software and statistical methods. PRIMER-E, Plymouth, UKGoogle Scholar
  3. Arthington AH, Balcombe SR, Wilson GA, Thoms MC, Marshall J (2005) Spatial and temporal variation in fish-assemblage structure in isolated waterholes during the 2001 dry season of an arid-zone floodplain river, Cooper Creek, Australia. Marine and Freshwater Research 56:23–35CrossRefGoogle Scholar
  4. Balcombe SR, Arthington AH (2009) Temporal changes in fish abundance in response to hydrological variability in a dryland floodplain river. Marine and Freshwater Research 60:146–159CrossRefGoogle Scholar
  5. Balcombe SR, Arthington AH, Foster ND, Thoms MC, Wilson GG, Bunn SE (2006) Fish assemblages of an Australian dryland river: abundance, assemblage structure and recruitment patterns in the Warrego River, Murray-Darling Basin. Marine and Freshwater Research 57:619–633CrossRefGoogle Scholar
  6. Baumgartner LJ (2004) The effects of Balranald Weir on spatial and temporal distributions of lower Murrumbidgee River fish assemblages. NSW Department of Primary Industries Final Report Series No. 65, Cronulla, NSW, AustraliaGoogle Scholar
  7. Bowen ZH, Bovee KD, Waddle TJ (2003) Effects of flow regulation on shallow-water habitat dynamics and floodplain connectivity. Transactions of the American Fisheries Society 132:809–823CrossRefGoogle Scholar
  8. Brown P, Sivakumaran KP, Stoessel D, Giles A, Green C, Walker T (2003) Carp population biology in Victoria. Marine and Freshwater Resources Institute Report No. 56. Department of Primary Industries, Snobs Creek, Victoria, AustraliaGoogle Scholar
  9. Clarke KR, Gorley RN (2006) PRIMER v6: User manual/ tutorial. PRIMER-E, Plymouth, UKGoogle Scholar
  10. Cucherousset J, Carpentier A, Paillisson J-M (2007) How do fish exploit temporary waters throughout a flooding episode? Fisheries Management and Ecology 14:269–276CrossRefGoogle Scholar
  11. Cummins T, Duggan K (2009) Options for environmental water: an evaluation of the 2008 Narran Lakes environmental water purchase. Murray-Darling Basin Authority, Canberra, AustraliaGoogle Scholar
  12. Davies P, Harris JH, Hillman TJ, Walker KF (2008) Murray-Darling Basin Rivers: Ecosystem Health Check, 2004–2007. A summary report based on the Independent Sustainable Rivers Audit Group’s SRA Report 1: a Report on the Ecological Health of Rivers in the Murray-Darling Basin, 2004–2007. Murray-Darling Basin Commission, Canberra, AustraliaGoogle Scholar
  13. Ebner BC, Scholz O, Gawne B (2009) Golden perch Macquaria ambigua are flexible spawners in the Darling River, Australia. New Zealand Journal of Marine and Freshwater Research 43:571–578Google Scholar
  14. Fairweather PG (1991) Statistical power and design requirements for environmental monitoring. Australian Journal of Marine and Freshwater Research 42:555–567CrossRefGoogle Scholar
  15. Field SA, O’Connor PJ, Tyre AJ, Possingham HP (2007) Making monitoring meaningful. Austral Ecology 32:485–491CrossRefGoogle Scholar
  16. Gehrke PC (1992) Diel abundance, migration and feeding of fish larvae (Eleotridae) in a floodplain billabong. Journal of Fish Biology 40:695–707CrossRefGoogle Scholar
  17. Gehrke PC, Brown P, Schiller CB, Moffatt DB, Bruce DB (1995) River regulation and fish communities in the Murray-Darling river system, Australia. Regulated Rivers: Research and Management 11:363–375CrossRefGoogle Scholar
  18. Gehrke PC, Gilligan DM, Barwick M (2002) Changes in fish communities of the Shoalhaven River 20 years after construction of the Tallowa Dam, Australia. River Research and Applications 18:265–286CrossRefGoogle Scholar
  19. Growns I (2008) The influence of changes to river hydrology on freshwater fish in regulated rivers of the Murray-Darling Basin. Hydrobiologia 596:203–211CrossRefGoogle Scholar
  20. Humphries P, King AJ, Koehn JD (1999) Fish, flows and floodplains: links between freshwater fishes and their environment in the Murray-Darling River system, Australia. Environmental Biology of Fishes 56:129–151CrossRefGoogle Scholar
  21. Humphries P, Serafini LG, King AJ (2002) River regulation and fish larvae: variation through space and time. Freshwater Biology 47:1307–1331CrossRefGoogle Scholar
  22. Humphries P, Cook RA, Richardson AJ, Serafini LG (2006) Creating a disturbance: manipulating slackwaters in a lowland river. River Research and Applications 22:525–542CrossRefGoogle Scholar
  23. Humphries P, Brown P, Douglas J, Pickworth A, Strongman R, Hall K, Serafini L (2008) Flow-related patterns in abundance and composition of the fish fauna of a degraded Australian lowland river. Freshwater Biology 53:789–813CrossRefGoogle Scholar
  24. King AJ, Humphries P, Lake PS (2003) Fish recruitment on floodplains: the roles of patterns of flooding and life history characteristics. Canadian Journal of Fisheries and Aquatic Sciences 60:773–786CrossRefGoogle Scholar
  25. King AJ, Tonkin Z, Mahoney J (2009) Environmental flow enhances native fish spawning and recruitment in the Murray River, Australia. River Research and Applications 25:1205–1218CrossRefGoogle Scholar
  26. King AJ, Ward KA, O’Connor P, Green D, Tonkin Z, Mahoney J (2010) Adaptive management of an environmental watering event to enhance native fish spawing and recruitment. Freshwater Biology 55:17–31CrossRefGoogle Scholar
  27. Kingsford RT (2000a) Ecological impacts of dams, water diversions and river management on floodplain wetlands in Australia. Austral Ecology 25:109–127Google Scholar
  28. Kingsford RT (2000b) Protecting rivers in arid regions or pumping them dry? Hydrobiologia 427:1–11CrossRefGoogle Scholar
  29. Kingsford RT, Brandis K, Porter JL (2008) Waterbird response to flooding in the northern Murray-Darling Basin 2008. School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, NSW, AustraliaGoogle Scholar
  30. Koehn JD, Harrington DJ (2006) Environmental conditions and timing for the spawning of Murray cod (Maccullochella peelii peelii) and the endangered trout cod (M. macquariensis) in southeastern Australian rivers. River Research and Applications 22:327–342CrossRefGoogle Scholar
  31. Llewellyn L (1973) Spawning, development, and temperature tolerance of the spangled perch, Madigania unicolor (Gunther), from inland waters in Australia. Australian Journal of Marine and Freshwater Research 24:73–94CrossRefGoogle Scholar
  32. Mallen-Cooper M, Stuart IG (2003) Age, growth and non-flood recruitment of two potamodromous fishes in a large semi-arid/ temperate river system. River Research and Applications 19:697–719CrossRefGoogle Scholar
  33. MDBC (2008a) Murray-Darling Basin Commission Annual Report 2007–2008. Murray-Darling Basin Commission, Canberra, AustraliaGoogle Scholar
  34. MDBC (2008b) The Narran Ecosystem Project: the responses of a terminal wetland system to variable wetting and drying. Final report to the Murray-Darling Basin Commission. Murray-Darling Basin Commission, Canberra, AustraliaGoogle Scholar
  35. Pease AA, Davis JJ, Edwards MS, Turner TF (2006) Habitat and resource use by larval and juvenile fishes in an arid-land river (Rio Grande, New Mexico). Freshwater Biology 51:475–486CrossRefGoogle Scholar
  36. Poff NL, Allan JD, Palmer MA, Hart DD, Richter BD, Arthington AH, Rogers KH, Meyer JL, Stanford JA (2003) River flows and water wars: emerging science for environmental decision making. Frontiers in Ecology and the Environment 1:298–306CrossRefGoogle Scholar
  37. Propst D, Gido KB, Stefferud JA (2008) Natural flow regimes, nonnative fishes, and native fish persistence in arid-land river systems. Ecological Applications 18:1236–1252CrossRefGoogle Scholar
  38. Puckridge JT, Sheldon F, Walker KF, Boulton AJ (1998) Flow variability and the ecology of large rivers. Marine and Freshwater Research 49:55–72CrossRefGoogle Scholar
  39. Puckridge JT, Walker KF, Costelloe JF (2000) Hydrological persistence and the ecology of dryland Rivers. Regulated Rivers: Research and Management 16:385–402CrossRefGoogle Scholar
  40. Pusey B, Kennard M, Arthington A (2004) Freshwater fishes of north-eastern Australia. CSIRO Publishing, Collingwood, Victoria, AustraliaGoogle Scholar
  41. Rayner TS, Jenkins KM, Kingsford RT (2009) Small environmental flows, drought and the role of refugia for freshwater fish in the Macquarie Marshes, arid Australia. Ecohydrology 2:440–453CrossRefGoogle Scholar
  42. Roberts DT, Duivenvoorden LJ, Stuart IG (2008) Factors influencing recruitment patterns of golden perch (Macquaria ambigua oriens) within a hydrologically variable and regulated Australian tropical river system. Ecology of Freshwater Fish 17:577–589CrossRefGoogle Scholar
  43. Smith KA (2003) A simple multivariate technique to improve the design of a sampling strategy for age-based fishery monitoring. Fisheries Research 64:79–85Google Scholar
  44. Stuart IG, Jones M (2006) Large, regulated forest floodplain is an ideal recruitment zone for non-native common carp (Cyprinus carpio L.). Marine and Freshwater Research 57:333–347CrossRefGoogle Scholar
  45. Vilizzi L (1998) Age, growth and cohort composition of 0 + carp in the River Murray, Australia. Journal of Fish Biology 52:997–1013CrossRefGoogle Scholar
  46. Zeug SC, Winemiller KO (2008) Relationships between hydrology, spatial heterogeneity, and fish recruitment dynamics in a temperate floodplain river. River Research and Applications 24:90–102CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  1. 1.Ecosystem ManagementUniversity of New EnglandArmidaleAustralia
  2. 2.Australian Rivers InstituteGriffith UniversityNathanAustralia

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