Inclusion of copepod Acartia tonsa nauplii in the feeding of Centropomus undecimalis larvae increases stress resistance

Wanessa de Melo-Costa, Cristina Vaz Avelar de Carvalho, Gabriel Passini, Andressa Teles, Manuela Sozo-Cecchini, Vinicius Ronzani-Cerqueira


DOI: https://doi.org/10.3856/vol43-issue4-fulltext-12

Abstract


This research represents the first result of studies of the common snook Centropomus undecimalis larvae from broodstock matured in captivity in Brazil. The aim of this study was to evaluate if the inclusion of Acartia tonsa nauplii improves stress resistance of common snook larvae. The larvae were fed with: rotifers Brachionus plicatilis (10 to 15 mL-1); A. tonsa nauplii (0.25 to 0.5 mL-1) and rotifers (5 to 7.5 mL-1), and A. tonsa nauplii (0.12 to 0.25 mL-1). The average percentage of survival of the treatments was 11.9%. At 20 days of age, larvae were subjected to thermal stress. Subsequently, the stress resistance was evaluated. Common snook larvae fed B. plicatilis+A. tonsa reached a higher weight and length (7.5 ± 0.00 mg and 9.1 ± 0.23 mm, respectively) and resisted more heat stress (87.4%) than larvae fed other foods, indicating that the feed mixture is satisfactory as a starter diet for larvae of common snook. However, more research is needed to confirm these results.


de Melo-Costa W, Vaz Avelar de Carvalho C, Passini G, Teles A, Sozo-Cecchini M, Ronzani-Cerqueira V. Inclusion of copepod Acartia tonsa nauplii in the feeding of Centropomus undecimalis larvae increases stress resistance. Lat. Am. J. Aquat. Res.. 2017;43(4): 739-744. Available from: doi:10.3856/vol43-issue4-fulltext-12 [Accessed 20 Apr. 2021].
de Melo-Costa, W., Vaz Avelar de Carvalho, C., Passini, G., Teles, A., Sozo-Cecchini, M., & Ronzani-Cerqueira, V. (2017). Inclusion of copepod Acartia tonsa nauplii in the feeding of Centropomus undecimalis larvae increases stress resistance. Latin American Journal of Aquatic Research, 43(4), 739-744. doi:http://dx.doi.org/10.3856/vol43-issue4-fulltext-12