A multi-faceted approach for evaluating fishway performance in south-eastern Australia

Simple item page
dc.contributor.authorWalsh, Cen_AU
dc.contributor.authorDuncan, Men_AU
dc.contributor.authorPaull, Ten_AU
dc.contributor.authorReinfelds, IVen_AU
dc.contributor.authorMazumder, Den_AU
dc.contributor.authorGiligan, Den_AU
dc.date.accessioned2021-09-02T01:31:20Zen_AU
dc.date.available2021-09-02T01:31:20Zen_AU
dc.date.issued2015-06-24en_AU
dc.date.statistics2021-08-19en_AU
dc.description.abstractIn the coastal rivers of south-eastern Australia 70% of fish migrate at some stage between the rivers and estuary to complete their life cycle, predominantly as catadromous and amphidromous migrations. A major threat to diadromous fishes in this region is the construction of artificial barriers, such as dams, weirs and road crossings. Traditionally, fishways in Australia were based on those designed to pass salmonids, thus limiting fish passage for the comparatively poorly swimming Australian native species. However, in the past few decades fishway design has been refined to accommodate native species’ swimming ability and wide range of body sizes (40- 1000mm). Ongoing monitoring programs have facilitated the refinement of modern fishway design to ensure successful passage of the target community. The Hawkesbury-Nepean and Shoalhaven rivers are the second and fifth largest regulated coastal river systems within the state of New South Wales. Barriers in these systems were retrofitted with either vertical slot or high-dam fishways completed over the last six years, together with new environmental flows. Sampling techniques for fishway evaluation on these rivers includes monitoring fish communities above and below the barrier; PIT tagging to assess timing of migration through fishways; and fishway entrance and exit trapping to assess the success of the fishway at passing individual species. Modern sampling techniques such as genetics and stable isotope analysis (SIA) are also being used on historically fragmented habitats to detect changes in population genetic structure and trophic shifts. Finally, analysis of fish movement (derived via acoustic telemetry) in response to environmental variables is providing detailed information on potential migration cues and flow regimes required to stimulate fish movement. This multi-faceted research approach not only provides empirical and real-time data for evaluating the performance of fishways in improving fish passage, but also informs operational managers on their efficiency and assists engineers in refining future fishway design.en_AU
dc.identifier.citationWalsh, C., Duncan, M., Paull, T., Reinfelds, I., Mazumder, D. & Giligan, D. (2015). A multi-faceted approach for evaluating fishway performance in south-eastern Australia. Paper presented at Fish Passage 2015 – International conference on river connectivity best practices and innovations, 22- 24 June 2015, Groningen, Netherlands. Retrieved from:https://scholarworks.umass.edu/fishpassage_conference/2015/June24/62/en_AU
dc.identifier.conferenceenddate24 June 2015en_AU
dc.identifier.conferencenameFish Passage 2015, International conference on river connectivity best practices and innovationsen_AU
dc.identifier.conferenceplaceGroningen, Netherlandsen_AU
dc.identifier.conferencestartdate22 June 2015en_AU
dc.identifier.otherSession A8en_AU
dc.identifier.urihttps://scholarworks.umass.edu/fishpassage_conference/2015/June24/62/en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/11573en_AU
dc.language.isoenen_AU
dc.publisherUniversity of Massachusetts Amhersten_AU
dc.subjectCoastal regionsen_AU
dc.subjectAustraliaen_AU
dc.subjectFishesen_AU
dc.subjectEstuariesen_AU
dc.subjectLife cycleen_AU
dc.subjectFish passage facilitiesen_AU
dc.subjectMigrationen_AU
dc.subjectDamsen_AU
dc.subjectRoadsen_AU
dc.subjectNew South Walesen_AU
dc.subjectStable isotopesen_AU
dc.titleA multi-faceted approach for evaluating fishway performance in south-eastern Australiaen_AU
dc.typeConference Abstracten_AU
Files
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.63 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Conference Publications