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Predator preferences: a key to effective biological control design / Preferências do predador: a chave para um projeto de controle biológico eficaz
Kimirei, Merikinoi; Cleopa, Cecília; Steven, Winnie; Ombeni, Kishimbo; Kweka, Eliningaya J.
  • Kimirei, Merikinoi; Department of Zoology and Wildlife Conservation, College of Natural and Applied Sciences, University of Dar-es-salaam. TZ
  • Cleopa, Cecília; Department of Zoology and Wildlife Conservation, College of Natural and Applied Sciences, University of Dar-es-salaam. TZ
  • Steven, Winnie; Department of Zoology and Wildlife Conservation, College of Natural and Applied Sciences, University of Dar-es-salaam. TZ
  • Ombeni, Kishimbo; Department of Zoology and Wildlife Conservation, College of Natural and Applied Sciences, University of Dar-es-salaam. TZ
  • Kweka, Eliningaya J; Tropical Pesticides Research Institute. Department of Medical Parasitology and Entomology, Catholic University of Health and Allied Sciences. TZ
J. Health Biol. Sci. (Online) ; 9(1): 1-4, 2021. Ilu, Graf
Article in English | LILACS | ID: biblio-1352349
ABSTRACT
Objetctive This experimental study aimed to assess the preference of Gambusia affinis to mosquito larvae of An.gambiae s.s., Cx. quinquefasciatus and Aedes aegypti.

Method:

Three Gambusia affinis were introduced in a glass container with a dimension of 45cm x 25cmx 25cm. Three larvae densities were used, 90 (30 larvae per species), 120 (40 larvae per species), and 180 (60 larvae per species). Each density experiment was set in triplicate and monitored after 1, 2, 3, and 24 hours. No fish food was added to the container for larvae.

Results:

Results have shown that in all times A. aegypti has been the most preferred species by Gambusia affinis. Among the tested species, A. aegypti was most prayed with time and in different densities. In mixed models including density, species, and time there was no significant difference among the species predation.

Conclusion:

Preliminary results have shown that the appropriate choice of predators for each mosquito species can have a great impact on bio-control to substantially complement existing tools.
RESUMO

Objetivo:

avaliar a preferência de Gambusia affinis por larvas de mosquito de An. gambiae s.s., Cx. quinquefasciatus e Aedes aegypti.

Método:

Três Gambusia affinis foram introduzidos em um recipiente de vidro com dimensões de 45cm x 25cm x 25cm. Foram utilizadas três densidades de larvas, 90 (30 larvas por espécie), 120 (40 larvas por espécie) e 180 (60 larvas por espécie). Cada experimento de densidade foi estabelecido em triplicado e monitorado após 1, 2, 3 e 24 horas. Nenhum alimento de peixe foi adicionado ao recipiente com larvas.

Resultados:

Os resultados mostraram que em todos os tempos o A. aegypti foi a espécie mais preferida por Gambusia affinis. Entre as espécies testadas, A. aegypti foi a mais predada com o tempo e em diferentes densidades. Em modelos mistos incluindo densidade, espécie e tempo, não houve diferença significativa entre a predação por espécies.

Conclusão:

Os resultados preliminares mostraram que a escolha apropriada de predadores para cada espécie de mosquito pode ter um grande impacto no bio-controle para complementar substancialmente as ferramentas existentes.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Predatory Behavior Language: English Journal: J. Health Biol. Sci. (Online) Journal subject: Ciˆncias da Sa£de / Disciplinas das Ciˆncias Biol¢gicas Year: 2021 Type: Article Affiliation country: Tanzania Institution/Affiliation country: Department of Zoology and Wildlife Conservation, College of Natural and Applied Sciences, University of Dar-es-salaam/TZ / Tropical Pesticides Research Institute/TZ

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Full text: Available Index: LILACS (Americas) Main subject: Predatory Behavior Language: English Journal: J. Health Biol. Sci. (Online) Journal subject: Ciˆncias da Sa£de / Disciplinas das Ciˆncias Biol¢gicas Year: 2021 Type: Article Affiliation country: Tanzania Institution/Affiliation country: Department of Zoology and Wildlife Conservation, College of Natural and Applied Sciences, University of Dar-es-salaam/TZ / Tropical Pesticides Research Institute/TZ