Ponto-Caspian gammarids: Change water pH

How is the evidence assessed?
  • Effectiveness
    0%
  • Certainty
    50%
  • Harms
    not assessed

Study locations

Key messages

  • A controlled laboratory study from the UK found that lowering the pH of water did not kill invasive killer shrimp.

 

About key messages

Key messages provide a descriptive index to studies we have found that test this intervention.

Studies are not directly comparable or of equal value. When making decisions based on this evidence, you should consider factors such as study size, study design, reported metrics and relevance of the study to your situation, rather than simply counting the number of studies that support a particular interpretation.

Supporting evidence from individual studies

  1. A controlled laboratory study in 2011 in England, UK1 (Stebbing et al. 2011) found that lowering the pH of water did not kill the killer shrimp Dikerogammarus villosus. None of the shrimp died during the test period. Tests were conducted on 5 captive shrimp immersed for 15 minutes in de-chlorinated water of different pH values. Values ranged from pH 7.2-3.1. Hydrochloric acid was used to adjust the pH of the test solutions. Dead and live shrimp were counted.

    Study and other actions tested
Please cite as:

Aldridge, D., Ockendon, N., Rocha, R., Smith, R.K. & Sutherland, W.J. (2020) Some Aspects of Control of Freshwater Invasive Species. Pages 555-87 in: W.J. Sutherland, L.V. Dicks, S.O. Petrovan & R.K. Smith (eds) What Works in Conservation 2020. Open Book Publishers, Cambridge, UK.

Where has this evidence come from?

List of journals searched by synopsis

All the journals searched for all synopses

Control of Freshwater Invasive Species

This Action forms part of the Action Synopsis:

Control of Freshwater Invasive Species
Control of Freshwater Invasive Species

Control of Freshwater Invasive Species - Published 2017

Control of Freshwater Invasive Species Synopsis

What Works 2021 cover

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What Works in Conservation provides expert assessments of the effectiveness of actions, based on summarised evidence, in synopses. Subjects covered so far include amphibians, birds, mammals, forests, peatland and control of freshwater invasive species. More are in progress.

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