Collected Evidence: Collected Evidence: Ponto-Caspian gammarids: Biological control using predatory fish No evidence was captured for the use of predatory fish to control Ponto-Caspian gammarids. 'No evidence' for an action means we have not yet found any studies that directly and quantitatively tested this action during our systematic journal and report searches. Therefore we have been unable to assess whether or not the action is effective or has any harmful impacts. Please get in touch if you know of such a study for this action.    Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1087https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1087Tue, 13 Oct 2015 13:23:09 +0100Collected Evidence: Collected Evidence: Ponto-Caspian gammarids: Control movement of gammarids A replicated, controlled laboratory study in the USA found that movements of invasive freshwater shrimp slowed down or stopped when they were placed in water that had been exposed to different species of predatory fish, compared to those not exposed to fish. A replicated laboratory study in the UK found carbonating the water stunned invasive killer shrimp.  Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1088https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1088Tue, 13 Oct 2015 13:28:18 +0100Collected Evidence: Collected Evidence: Ponto-Caspian gammarids: Exposure to parasites A replicated, laboratory study in Canada found that an introduced parasitic mould reduced populations of an invasive shrimp.  Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1089https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1089Tue, 13 Oct 2015 13:30:53 +0100Collected Evidence: Collected Evidence: Ponto-Caspian gammarids: Exposure to disease-causing organisms No evidence was captured for the use of disease-causing organisms to control Ponto-Caspian gammarids. 'No evidence' for an action means we have not yet found any studies that directly and quantitatively tested this action during our systematic journal and report searches. Therefore we have been unable to assess whether or not the action is effective or has any harmful impacts. Please get in touch if you know of such a study for this action.  Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1090https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1090Tue, 13 Oct 2015 13:31:55 +0100Collected Evidence: Collected Evidence: Ponto-Caspian gammarids: Change salinity of the waterOne of two replicated laboratory studies (one controlled) in Canada and the UK found that increasing the salinity level of water killed the majority of invasive shrimp within five hours. One found that increased salinity did not kill invasive killer shrimp.Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1091https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1091Tue, 13 Oct 2015 13:36:28 +0100Collected Evidence: Collected Evidence: Ponto-Caspian gammarids: Change water temperature 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.  Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1092https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1092Tue, 13 Oct 2015 13:38:26 +0100Collected Evidence: Collected Evidence: Ponto-Caspian gammarids: Change water pH A controlled laboratory study from the UK found that lowering the pH of water did not kill invasive killer shrimp.  Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1093https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1093Tue, 13 Oct 2015 13:41:18 +0100Collected Evidence: Collected Evidence: Ponto-Caspian gammarids: Dewater (dry out) the habitat A replicated, controlled laboratory study from Poland found that lowering water levels in sand killed three species of invasive freshwater shrimp, although one species required water content levels of 4% and below before it was killed.  Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1094https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1094Tue, 13 Oct 2015 13:44:55 +0100Collected Evidence: Collected Evidence: Ponto-Caspian gammarids: Add chemicals to the water A controlled laboratory study in the UK found that iodine solution, acetic acid, Virkon S and sodium hypochlorite added to freshwater killed invasive killer shrimp, but were considered impractical for field application. Methanol, citric acid, urea, hydrogen peroxide and sucrose did not kill invasive killer shrimp when added to freshwater.  Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1095https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1095Tue, 13 Oct 2015 13:48:43 +0100Collected Evidence: Collected Evidence: Ponto-Caspian gammarids: Cleaning equipment No evidence was captured for the cleaning of equipment to control Ponto-Caspian gammarids. 'No evidence' for an action means we have not yet found any studies that directly and quantitatively tested this action during our systematic journal and report searches. Therefore we have been unable to assess whether or not the action is effective or has any harmful impacts. Please get in touch if you know of such a study for this action.    Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1096https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1096Tue, 13 Oct 2015 13:49:53 +0100Collected Evidence: Collected Evidence: Ponto-Caspian gammarids: Exchanging ballast water No evidence was captured for exchanging ballast water to control Ponto-Caspian gammarids. 'No evidence' for an action means we have not yet found any studies that directly and quantitatively tested this action during our systematic journal and report searches. Therefore we have been unable to assess whether or not the action is effective or has any harmful impacts. Please get in touch if you know of such a study for this action.    Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1097https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1097Tue, 13 Oct 2015 13:51:28 +0100
What Works 2021 cover

What Works in Conservation

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.

More about What Works in Conservation

Download free PDF or purchase
The Conservation Evidence Journal

The Conservation Evidence Journal

An online, free to publish in, open-access journal publishing results from research and projects that test the effectiveness of conservation actions.

Read the latest volume: Volume 21

Go to the CE Journal

Discover more on our blog

Our blog contains the latest news and updates from the Conservation Evidence team, the Conservation Evidence Journal, and our global partners in evidence-based conservation.

Who uses Conservation Evidence?

Meet some of the evidence champions

Endangered Landscape ProgrammeRed List Champion - Arc Kent Wildlife Trust The Rufford Foundation Save the Frogs - Ghana Mauritian Wildlife Supporting Conservation Leaders
Sustainability Dashboard National Biodiversity Network Frog Life The international journey of Conservation - Oryx Cool Farm Alliance UNEP AWFA Bat Conservation InternationalPeople trust for endangered species Vincet Wildlife Trust
For a full list of, and information about, our champions:
All Evidence Champions
About our champions, why and how to become one:
Become an Evidence Champion

This website uses Cookies

We use limited Cookies to run the site and to analyse our traffic (none for site vendors). By using this site, you will be providing your consent to our use of Cookies.

Accept & continue