EFFICACY OF A PRATICAL HOOP-NET TRAPS MODEL INTHE CAPTURE OF FRESHWATER TURTLES, WITHSUGGESTION OF SAMPLING PROTOCOLS
DOI:
https://doi.org/10.18554/acbiobras.v2i2.8669Keywords:
: inventory, sampling, side-neck turtles, Testudines, turtleAbstract
Freshwater turtles remain little known in many regions of Brazil and have been
neglected in faunal surveys, which in part runs from the difficulties of using traditional traps in sampling. We have analyzed the effectiveness of a practical and easy to obtain hoop-net trap model. Three sizes of traps baited with canned sardines were analyzed in standardized samplings (910 traps, 380 points, 1685 traps-days
effort) and non-standard samples, conducted in lentic and lotic environments in the Cerrado, Atlantic Forest and Amazon, Brazil. Eleven species belonging to four
families of chelonians were captured, including 148 specimens in the standardized samples. The hoop-net trap model was effective in the capture of several freshwater species, especially with great sampling effort, and canned sardines were attractive.
The model was also effective in the various lentic and lotic environments sampled. In the standardized samples the capture rate was 9.23% and the stay period of 01 day was more efficient (capture rate: 60.20%) than 02 days (39.80%). In nonstandard samples, there was satisfactory success with a residence period of 04 hours. The capture rate varied from 4.86% to 14.32% between the different hoop
trap sizes. Based on the results we propose sampling protocols with the hoop-net trap model tested in rapid and long studies.
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