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How low can they go when going with the flow? Tolerance of egg and larval fishes to rapid decompression.

Boys CA, Robinson W, Miller B, Pflugrath B, Baumgartner LJ, Navarro A, Brown R, Deng Z - Biol Open (2016)

Bottom Line: Eggs, but not larvae, were unaffected by all levels of decompression tested.At exposure pressures below ∼40 kPa, or ∼40% of surface pressure, swim bladder deflation occurred in all species and internal haemorrhage was observed in one species.Consequently, if larval drift is expected where river infrastructure is present, adopting design or operational features which maintain exposure pressures at 40% or more of the pressure to which drifting larvae are acclimated may afford greater protection for resident fishes.

View Article: PubMed Central - PubMed

Affiliation: New South Wales Department of Primary Industries, Port Stephens Fisheries Institute, Taylors Beach Road, Taylors Beach, New South Wales 2316, Australia craig.boys@dpi.nsw.gov.au.

No MeSH data available.


Related in: MedlinePlus

The probability that silver perch and golden perch eggs will die before hatching after being exposed to simulated infrastructure passage across a range of ratio of pressure changes (RPCE/A). Each point represents the percentage of that test group (10 eggs) affected.
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BIO017491F1: The probability that silver perch and golden perch eggs will die before hatching after being exposed to simulated infrastructure passage across a range of ratio of pressure changes (RPCE/A). Each point represents the percentage of that test group (10 eggs) affected.

Mentions: Hatching success was unaffected by ratio of pressure change (RPC) for both silver perch and golden perch eggs (golden perch χ2=0.001, d.f.=1, P=0.993; silver perch χ2=0.677, d.f.=1, P=0.41; Fig. 1).Fig. 1.


How low can they go when going with the flow? Tolerance of egg and larval fishes to rapid decompression.

Boys CA, Robinson W, Miller B, Pflugrath B, Baumgartner LJ, Navarro A, Brown R, Deng Z - Biol Open (2016)

The probability that silver perch and golden perch eggs will die before hatching after being exposed to simulated infrastructure passage across a range of ratio of pressure changes (RPCE/A). Each point represents the percentage of that test group (10 eggs) affected.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4920188&req=5

BIO017491F1: The probability that silver perch and golden perch eggs will die before hatching after being exposed to simulated infrastructure passage across a range of ratio of pressure changes (RPCE/A). Each point represents the percentage of that test group (10 eggs) affected.
Mentions: Hatching success was unaffected by ratio of pressure change (RPC) for both silver perch and golden perch eggs (golden perch χ2=0.001, d.f.=1, P=0.993; silver perch χ2=0.677, d.f.=1, P=0.41; Fig. 1).Fig. 1.

Bottom Line: Eggs, but not larvae, were unaffected by all levels of decompression tested.At exposure pressures below ∼40 kPa, or ∼40% of surface pressure, swim bladder deflation occurred in all species and internal haemorrhage was observed in one species.Consequently, if larval drift is expected where river infrastructure is present, adopting design or operational features which maintain exposure pressures at 40% or more of the pressure to which drifting larvae are acclimated may afford greater protection for resident fishes.

View Article: PubMed Central - PubMed

Affiliation: New South Wales Department of Primary Industries, Port Stephens Fisheries Institute, Taylors Beach Road, Taylors Beach, New South Wales 2316, Australia craig.boys@dpi.nsw.gov.au.

No MeSH data available.


Related in: MedlinePlus