Levantamento de imaturos de libélulas (INSECTA: ODONATA) em tanques escavados de piscicultura na mesorregião de Alfenas-MG

Fortunato, Murilo Henrique Tank; Mendes, Humberto Fonseca; Hayashi, Carmino; Faria, Lincoln Rodrigues de; Melo, Caroline Lopes de; Ananias, Imaculada Morais Carvalho

doi:10.33448/rsd-v10i11.19846

Cited by 1 publication

(2 citation statements)

References 29 publications

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“…The selection of the Odonata genera used in the experiments was based on the results of studies of Fortunato et al, 2021 with a survey of the genera in five excavated fish farming ponds at the Universidade Professor Edson Antônio Velano between October 2018 and March 2019. In this survey 692 larvae were collected, being 34.41% of them represented by the Miathyria genus and 20.4% by the Erythemis genus.…”

Section: Selection Of Odonata Generamentioning

confidence: 99%

“…However, despite their ecological importance in aquatic communities, when referring to fish farming environments, specifically in excavated ponds and in the initial moments of fish life, these insects can cause great productive losses as mentioned above (Tave, Rezk, & Smitherman, 1990). According to studies by Santos, Costa, and Luz (1988), De Marco Junior, Latini, and Reis (1999), Fonseca, Sanches, Fonseca, Quintilhiano, and Silva (2004), and Fortunato et al (2021, among the main genus of Odonata found in fish farms, Pantala Hagen, 1861, Orthemis Hagen, 1861, Miathyria Kirby, 1889, Erythrodiplax Brauer, 1868, Erythemis Hagen, 1861 belong to the Libellulidae family.…”

Section: Introductionmentioning

confidence: 99%

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Predation rate of dragonfly (Odonata: Libellulidae) on tilapia (Oreochromis niloticus Linnaeus 1758) and the availability of alternative preys (Insecta: Diptera: Chironomidae) to increase fish survival

Fortunato,

Mendes,

Hayashi

et al. 2023

Acta Sci. Biol. Sci.

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The objective of this work was to evaluate the predation rates of two genera of Odonata Miathyria Kirby, 1889 and Erythemis Hagen, 1861 in post-larviculture of tilapia with and without availability of Chironomidae. For that, 3 experiments were carried out, the first to analyze which size scale of these two genera would be more efficient in the predation of tilapia and the other 2 experiments with the selected size scales, to analyze the predation rates on tilapia with different Odonata densities, with and without availability of the aquatic insect Chironomidae. For statistical analysis of the data, an analysis of variance (ANOVA) was applied with the Duncan test searching for the means in all experiments. In experiments 2 and 3 a linear regression model was also applied. In experiment 1, there were significant differences between treatments, and in the phase with Miathyria the predation of tilapia post-larvae was higher among odonates that corresponded to the size scale from 7.1 to 9.9 mm and therefore the scale was also selected for the next experiments. For Erythemis, the consumption of tilapia was higher in the size scale between 12.1 to 14,2 mm. In the following experiments, there were significant differences between treatments. With the increase in Odonata densities the predation of the fish was greater. With the availability of Chironomidae, the consumption of tilapia post-larvae decreased. The consumption of Chironomidae was higher than the consumption of fish in experiment 3. Miathyria proved to be more efficient than Erythemis in predation and the use of Chironomidae can be a sustainable alternative for post-larvae predation control on fish farms.

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Section: Selection Of Odonata Generamentioning

confidence: 99%