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Table 3 Data extraction table

From: The effectiveness of non-native fish eradication techniques in freshwater ecosystems: a systematic review protocol

Main category Sub-category Description
Article metadata Study ID Unique code given to each study (i.e., linked articles given same code)
  Paper ID Unique code given to each manuscript
  Authors Name of authors
  Email address All email address of main contact
  Publication year Year of manuscript publication
  Title Article title
  Reference Full reference (as extracted from relevant database)
  Publication type Publication format (e.g., book chapter, journal paper, conference paper, thesis, organisation report)
  Abstract Article abstract or summary (if provided)
  Keywords Publication keywords
  Author affiliation type Author affiliation (e.g., academic institution, government, consulting, NGO)
  Article access notes Any issues associated with accessing the full article (e.g., were the authors contacted?)
  Format Article format e.g., PDF, Microsoft Word file, HTML
Location metadata Study country Country(ies) in which study undertaken
  Study region Region(s) in which study undertaken
  Study type Lab or field-based
  Study design BA/CI/BACI/RCT
  Study waterbody Name of waterbodies included in study
Location metadata UTM zone  
  UTM coordinates  
Waterbody metadata Waterbody type Lake, river, reservoir, pond etc.
  Waterbody area Record how it is reported in the article, including units
  Average depth  
  Retention time  
  Secchi depth  
  Wetted width  
  Stream order  
  Stream type E.g., permanent, intermittent
  Water clarity/colour  
  Water temperature  
  Canopy cover (%)  
  Slope (%)  
  Substrate composition E.g., silt, sand, gravel, cobble, rubble, bedrock
  Vectors for introduction If discussed in article
  Open or closed system  
  Manmade or natural system  
  Waterbody accessibility Easy (e.g., canal in city), moderate (e.g., river in national park), difficult (e.g., high alpine lake)
  History of biomanipulation?  
  Extent population is established If discussed in article
Target species metadata Fish species name  
  Fish species scientific name  
  Migratory or non-migratory  
  Life history strategy E.g., anadromous, semelparous, iteroparous
  Target age class  
  Habitat preferences  
  Age at maturity  
  Relative abundance of target species (pre-intervention) Change in abundance of target species, before intervention (e.g., CPUE)
  DO range  
  Depth range  
  Body size  
  Habitat use  
Intervention metadata Date: project start dd-mmm-yy
  Date: project end dd-mmm-yy
  Study length Duration of study
  Study timescale Period between intervention and study
  Pre-monitoring Was there any pre-monitoring that occurred? If yes, describe
  Post-monitoring Was there any post-monitoring that occurred? If yes, describe
  Study seasonality What season did the study take place? Describe all if occurred over many seasons
  Study description Brief description of study
  Eradication method type Mechanical, chemical, biological, environmental, other
  Eradication method details Mechanical method type, type of chemical used, name of introduced biological control etc.
Intervention metadata Eradication effort Will vary depending on method used (e.g., electrofishing time, fishing time, area treated)
  Number of fish removed Report the total number of fish removed. Can separate number of fish removed live versus dead, depending on eradication method type
  Methodological detail Level of methodological detail; low (very little detail, significant information missing), medium (some detail missing but generally sufficient), high (very high level of detail, no obvious information lacking)
  Methodology notes Brief description (summary or quotation) of study methodology
  Intervention type rationale How/why were the intervention types selected?
  Experimental design i.e., observation, experimentation, modeled
  Study cost If discussed in article
  Replication Number of replicates, if applicable
  Randomization Presence of randomization, if applicable
  Sources of potential bias Description of other potential sources of bias
Outcome metadata Relative abundance of target species (post-intervention), over time Change in abundance of target species, after intervention (e.g., CPUE), over time. Report the duration that the abundance was monitored for (e.g., 1 week post intervention, 6 months, 1 year etc.)
  Eradication probability If discussed in article
  Change in species composition If discussed in article, the change in species composition in the waterbody
  Change in biomass of target species  
  Change in size of target species If discussed in article, the change in target species size over time, after eradication efforts (e.g., total length, mass, proportion of catch within a specific size range)
  Statistical results of effectiveness measure Was the effectiveness assessed statistically? If yes, report
Social factors metadata Social risk factors Did project consultation occur for this project? (Y/N)
  Social risk factors—Details If yes, describe (e.g., public meetings, media released)
Linked article metadata Linked study Paper ID of articles describing results of same study. This is especially important to look at overall success rates for projects that are reported over several different publications
  Additional article details Further description of relationship with other articles