Bait type influences on catch and bycatch in tandem hoop nets set in reservoirs

  • Published source details Long J.M., Stewart D.R., Shiflet J., Balsman D. & Shoup D.E. (2017) Bait type influences on catch and bycatch in tandem hoop nets set in reservoirs. Fisheries Research, 186, 102-108.


This study is summarised as evidence for the following.

Action Category

Use a different bait type: Tortoises, terrapins, side-necked & softshell turtles

Action Link
Reptile Conservation
  1. Use a different bait type: Tortoises, terrapins, side-necked & softshell turtles

    A replicated, paired study in 2014 of 13 reservoirs in Kentucky, USA (Long et al. 2017) found that using soap rather than cheese as fishing bait in hoop nets reduced unwanted catch of turtles in a catfish Ictalurus punctatus fishery. Unwanted catch of all turtles in hoop nets was reduced with soap bait (7 turtles/net deployment) compared to cheese bait (11 turtles/net deployment). Turtle mortality was reduced with soap bait compared to cheese (data reported as statistical model outputs). Catch rates of commercially targeted catfish were similar between soap-baited (1,613 individuals) and cheese-baited hoop nets (1,429 individuals) although soap-baited nets caught larger catfish (344 mm average length) compared to cheese-baited (321 mm). In June 2014, four to six tandem hoop net combinations (three nets/combination, each 3.4 m long with 25 mm bar mesh and seven 0.8 m hoops) were deployed at <4 m depths in 13 reservoirs (70 total net deployments, two sampling periods). Nets were either baited with 800g cheese logs or 800g Zote © soap. Nets were fished for two days; all animals were removed and nets were then reset with the opposite bait and fished for a further two days. In total six turtle species were caught, of which three species (red-eared slider Trachemys scripta elegans, common musk Sternotherus odoratus and common snapping turtles Chelydra serpentina) were caught frequently enough to assess differences in mortality by bait type.

    (Summarised by: Katie Sainsbury)

Output references
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