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    Author(s): Alissa L. Gulette; James Anderson; Donald J. Brown
    Date: 2019
    Source: Northeastern Naturalist
    Publication Series: Scientific Journal (JRNL)
    Station: Northern Research Station
    PDF: Download Publication  (352.0 KB)

    Description

    We investigated the influence of hoop-net trap size on number and size of captures for comparatively large (Chelydra serpentina [Snapping Turtle]) and small (Chrysemys picta [Painted Turtle]) freshwater turtle species. We trapped turtles at 32 ponds throughout West Virginia in the summers of 2016 and 2017, with each pond sampled for 5 consecutive days using five 0.91-m–diameter and five 0.76-m–diameter baited hoop-net traps. We captured a total of 98 and 283 unique Snapping Turtles and Painted Turtles, respectively. Larger-diameter traps captured more Snapping Turtles and smaller-diameter traps captured more Painted Turtles. Mean carapace length was greater for both species in larger-diameter traps, but this result was possibly influenced by the ability of the smallest Painted Turtles to escape through the mesh of the larger traps. Our results indicate that hoop-net–trap diameter can substantially influence both number and size distribution of captures, and thus, trap size is an important sampling design consideration for freshwater turtle research and monitoring using hoop-net traps.

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    Citation

    Gulette, Alissa L.; Anderson, James T; Brown, Donald J. 2019. Influence of Hoop-Net Trap Diameter on Capture Success and Size Distribution of Comparatively Large and Small Freshwater Turtles. Northeastern Naturalist. 26(1): 129-136. https://doi.org/10.1656/045.026.0111.

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