Using sprint swimming performance to predict upstream passage of the endangered Macquarie perch in a highly regulated river

Starrs, D., Ebner, B.C., Lintermans, M., and Fulton, C.J. (2011) Using sprint swimming performance to predict upstream passage of the endangered Macquarie perch in a highly regulated river. Fisheries Management and Ecology, 18 (5). pp. 360-374.

[img] PDF (Published Version) - Published Version
Restricted to Repository staff only

View at Publisher Website: http://dx.doi.org/10.1111/j.1365-2400.20...
 
26
4


Abstract

Barriers to migration are a major threat to freshwater fish populations. A novel measurement of swimming speed performance and an analytical model were used to calculate the probability that endangered Macquarie perch, Macquaria australasica Cuvier, can swim through instream structures. Over the range of river discharges (2.7-166 ML day(-1)) and temperatures (10-22 degrees C) examined, M. australasica could successfully pass through a rock-ramp fishway and nearby natural riffles under most river discharges, whilst pipe culverts were passable only to large individuals (> 17.7 cm total length) under a high river discharge. Cold water temperatures (below 16 degrees C) significantly reduced the likelihood of passage in each case. It was concluded that both the volume and thermal characteristics of environmental flow releases should be considered when assessing and remediating potential instream barriers to fish passage in regulated river systems.

Item ID: 35635
Item Type: Article (Research - C1)
ISSN: 1365-2400
Keywords: connectivity, environmental flow, fishway, migration, U(crit), U(sprint)
Funders: ACTEW Corporation, Australian National University, Australian Society for Fish Biology
Date Deposited: 01 Oct 2014 15:55
FoR Codes: 06 BIOLOGICAL SCIENCES > 0602 Ecology > 060204 Freshwater Ecology @ 100%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970106 Expanding Knowledge in the Biological Sciences @ 100%
Downloads: Total: 4
More Statistics

Actions (Repository Staff Only)

Item Control Page Item Control Page