Elementos paramétricos da agressão em Danio Rerio
Aggressiveness is a set of behaviors that play a important in the adaptation and survival of individuals. The study and development of behavioral tests with Danio rerio has great relevance for several areas science, providing the scientist with a reliable instrument that monitors behaviors on a...
| Autor principal: | MANSUR, Bruno de Matos |
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| Grau: | Dissertação |
| Idioma: | por |
| Publicado em: |
Universidade Federal do Pará
2019
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| Assuntos: | |
| Acesso em linha: |
http://repositorio.ufpa.br/jspui/handle/2011/10631 |
| Resumo: |
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Aggressiveness is a set of behaviors that play a
important in the adaptation and survival of individuals. The study and development
of behavioral tests with Danio rerio has great relevance for several areas
science, providing the scientist with a reliable instrument that monitors
behaviors on a simpler scale. The objective of this work is to establish
an aggression study model in Danio rerio, in which subjects are exposed to
isolation, followed by agonistic interaction and to verify that the outcome of a
influence the outcome of subsequent matches. To do so, we developed three
experiments: I - To determine the effects of the isolation time on the
aggressiveness; II - Determine the effect of the opponent's nature on the pattern of
aggression and whether there is continuity in the pattern of winning / losing with various opponents; III - Determine whether there is continuity in the Win / Loss pattern with the same opponent. Our experiments show that the best isolation time to elicit the display
aggressive of the fish Danio rerio is the one of 6h; the outcome of fights with new opponents
naive is not influenced by the outcome of previous struggles; and the result of fights
with the same opponent is entirely influenced by the outcome of the previous matches.
The fact that the subject recognizes his opponent as the same opponent of the previous fight
seems to be a relevant factor in the establishment and maintenance of the hierarchy, since this
does not hold when the subject struggles with a new naive subject. The acknowledgment
of the opponent appears to be relevant behavior for the establishment and
hierarchy in the group, influencing patterns of aggression. |