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

D. Starrs; B. C. Ebner; M. Lintermans; C. J. Fulton

doi:10.1111/j.1365-2400.2011.00788.x

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

D. Starrs^*, B. C. Ebner, M. Lintermans, C. J. Fulton

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

46 Citations (Scopus)

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 (2.7-166MLday^-1) and temperatures (10-22°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 (>17.7cm total length) under a high river discharge. Cold water temperatures (below 16°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.

Original language	English
Pages (from-to)	360-374
Number of pages	15
Journal	Fisheries Management and Ecology
Volume	18
Issue number	5
DOIs	https://doi.org/10.1111/j.1365-2400.2011.00788.x
Publication status	Published - Oct 2011

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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 (2.7-166MLday-1) and temperatures (10-22°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 (>17.7cm total length) under a high river discharge. Cold water temperatures (below 16°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.",

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

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