Damselfish face climate change: Impact of temperature and habitat structure on agonistic behavior.

Autor: da Silva-Pinto T; Laboratório de Peixes, Departamento de Fisiologia e Comportamento, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Natal, Brazil., Silveira MM; Laboratório de Peixes, Departamento de Fisiologia e Comportamento, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Natal, Brazil., de Souza JF; Laboratório de Peixes, Departamento de Fisiologia e Comportamento, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Natal, Brazil., Moreira ALP; Laboratório de Peixes, Departamento de Fisiologia e Comportamento, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Natal, Brazil., Vieira EA; Laboratório de Ecologia Marinha, Departamento de Oceanografia e Limnologia, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Natal, Brazil., Longo GO; Laboratório de Ecologia Marinha, Departamento de Oceanografia e Limnologia, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Natal, Brazil., Luchiari AC; Laboratório de Peixes, Departamento de Fisiologia e Comportamento, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Natal, Brazil.
Jazyk: angličtina
Zdroj: PloS one [PLoS One] 2020 Jun 30; Vol. 15 (6), pp. e0235389. Date of Electronic Publication: 2020 Jun 30 (Print Publication: 2020).
DOI: 10.1371/journal.pone.0235389
Abstrakt: Oceans absorb a huge part of the atmospheric heat, leading to the rise in water temperature. Reefs are among the most affected ecosystems, where the complex behavioral repertoire of fishes is usually an indicator of environmental impacts. Here, we examined whether temperature (28 and 34°C) and habitat complexity (high and low) interact to affect the agonistic behavior (mirror test) of the dusky damselfish (Stegastes fuscus), a key species in Brazilian reefs because of its gardening capacity and territorial behavior. Higher temperatures altered basal behavior in both high and low-complexity conditions. Fish kept at 28°C under the high-complexity condition were more aggressive than those at a higher temperature (34°C) and in a low-complexity condition, which also exhibited lower dispersion. Our data show that changes in behavior of coral reef fish is associated to fluctuations in environmental conditions. Thus, it is important to implement management or conservation strategies that could mitigate global change effects.
Competing Interests: The authors have declared that no competing interests exist.
Databáze: MEDLINE
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