Ponto-Caspian gammarids: Change water temperature

How is the evidence assessed?
  • Effectiveness
    80%
  • Certainty
    50%
  • Harms
    not assessed

Study locations

Key messages

  • A controlled laboratory study from the UK1 found that heating water to >36°C killed all shrimps after 15 minutes exposure and at >43°C all shrimps died immediately.

 

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, England, UK (Stebbing et al. 2011) found that heating water killed the invasive killer shrimp Dikerogammarus villosus. All shrimp died within a 15 minute exposure period when immersed into water at temperatures >36°C. All shrimps died immediately when immersed into water at temperatures >43°C. For each temperature tested, a container holding five shrimp was filled with water with measured temperatures of 28.4, 31.1, 36.3, 38.9, 43.2°C. A control set of five shrimps was held at ambient temperature (14-15°C). Shrimps were observed over a 15 minute period and then moved to freshwater at ambient conditions (14-15°C) to check for mortality over an 80 minute period.

    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

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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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