Radio-telemetry techniques in the study of displacement of freshwater anomurans

Detalhes bibliográficos
Autor(a) principal: Ayres-Peres, Luciane
Data de Publicação: 2011
Outros Autores: Coutinho, Cadidja, Baumart, Joele S., Gonçalves, Alberto S., Araujo, Paula Beatriz de, Santos, Sandro
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/197939
Resumo: In an ecological context, information on the movement and activity is important for understanding the requirements of habitat, resource usage patterns and the potential of interspecific interactions. The aim of this study was to examine the displacement pattern on daily activity and occupancy of substrates by Aegla manuinflata using radio-telemetry technique on field on Southern Brazil. Four adult males were monitored during nine days. The aeglids showed a significantly greater displacement toward upstream than downstream. Aegla manuinflata individuals showed higher displacement activity during the night period. Although activity was not constant: the animals spent one or more days without displacement. All aeglids showed locomotion activity concentrated between 11:43 p.m. and 02:25 a.m., although it was not restrict to sunset period and night. Individuals showed specific occupation of different types of substrate, but a pattern in the occupation of substrates as a function of the photoperiod was not observed. In this study, using a new technique for tracking aeglids, it was concluded that A. manuinflata is capable of actively dislocate throughout the stream, either toward upstream and downstream, passing through obstacles which may represent ability of re-colonization. The animals are more active during the night period, probably a strategy to avoid predators that are active during the day; the selection of substrate is not associated to sediment texture.
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spelling Ayres-Peres, LucianeCoutinho, CadidjaBaumart, Joele S.Gonçalves, Alberto S.Araujo, Paula Beatriz deSantos, Sandro2019-08-13T02:30:22Z20110104-6497http://hdl.handle.net/10183/197939000867090In an ecological context, information on the movement and activity is important for understanding the requirements of habitat, resource usage patterns and the potential of interspecific interactions. The aim of this study was to examine the displacement pattern on daily activity and occupancy of substrates by Aegla manuinflata using radio-telemetry technique on field on Southern Brazil. Four adult males were monitored during nine days. The aeglids showed a significantly greater displacement toward upstream than downstream. Aegla manuinflata individuals showed higher displacement activity during the night period. Although activity was not constant: the animals spent one or more days without displacement. All aeglids showed locomotion activity concentrated between 11:43 p.m. and 02:25 a.m., although it was not restrict to sunset period and night. Individuals showed specific occupation of different types of substrate, but a pattern in the occupation of substrates as a function of the photoperiod was not observed. In this study, using a new technique for tracking aeglids, it was concluded that A. manuinflata is capable of actively dislocate throughout the stream, either toward upstream and downstream, passing through obstacles which may represent ability of re-colonization. The animals are more active during the night period, probably a strategy to avoid predators that are active during the day; the selection of substrate is not associated to sediment texture.application/pdfengNauplius. Porto Alegre. Vol. 19, no. 1 (2011), p. 41-54AeglidaeAnomurosAeglidaeCircadian rhythmSubstrate preferenceRadio-telemetry techniques in the study of displacement of freshwater anomuransinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT000867090.pdf.txt000867090.pdf.txtExtracted Texttext/plain49802http://www.lume.ufrgs.br/bitstream/10183/197939/2/000867090.pdf.txt083bda1eb5244b41deeb009cdabed8dcMD52ORIGINAL000867090.pdfTexto completo (inglês)application/pdf1110148http://www.lume.ufrgs.br/bitstream/10183/197939/1/000867090.pdffa82b4a13cf4de6f52ec97e401bf081dMD5110183/1979392019-08-14 02:31:24.657238oai:www.lume.ufrgs.br:10183/197939Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2019-08-14T05:31:24Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Radio-telemetry techniques in the study of displacement of freshwater anomurans
title Radio-telemetry techniques in the study of displacement of freshwater anomurans
spellingShingle Radio-telemetry techniques in the study of displacement of freshwater anomurans
Ayres-Peres, Luciane
Aeglidae
Anomuros
Aeglidae
Circadian rhythm
Substrate preference
title_short Radio-telemetry techniques in the study of displacement of freshwater anomurans
title_full Radio-telemetry techniques in the study of displacement of freshwater anomurans
title_fullStr Radio-telemetry techniques in the study of displacement of freshwater anomurans
title_full_unstemmed Radio-telemetry techniques in the study of displacement of freshwater anomurans
title_sort Radio-telemetry techniques in the study of displacement of freshwater anomurans
author Ayres-Peres, Luciane
author_facet Ayres-Peres, Luciane
Coutinho, Cadidja
Baumart, Joele S.
Gonçalves, Alberto S.
Araujo, Paula Beatriz de
Santos, Sandro
author_role author
author2 Coutinho, Cadidja
Baumart, Joele S.
Gonçalves, Alberto S.
Araujo, Paula Beatriz de
Santos, Sandro
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Ayres-Peres, Luciane
Coutinho, Cadidja
Baumart, Joele S.
Gonçalves, Alberto S.
Araujo, Paula Beatriz de
Santos, Sandro
dc.subject.por.fl_str_mv Aeglidae
Anomuros
topic Aeglidae
Anomuros
Aeglidae
Circadian rhythm
Substrate preference
dc.subject.eng.fl_str_mv Aeglidae
Circadian rhythm
Substrate preference
description In an ecological context, information on the movement and activity is important for understanding the requirements of habitat, resource usage patterns and the potential of interspecific interactions. The aim of this study was to examine the displacement pattern on daily activity and occupancy of substrates by Aegla manuinflata using radio-telemetry technique on field on Southern Brazil. Four adult males were monitored during nine days. The aeglids showed a significantly greater displacement toward upstream than downstream. Aegla manuinflata individuals showed higher displacement activity during the night period. Although activity was not constant: the animals spent one or more days without displacement. All aeglids showed locomotion activity concentrated between 11:43 p.m. and 02:25 a.m., although it was not restrict to sunset period and night. Individuals showed specific occupation of different types of substrate, but a pattern in the occupation of substrates as a function of the photoperiod was not observed. In this study, using a new technique for tracking aeglids, it was concluded that A. manuinflata is capable of actively dislocate throughout the stream, either toward upstream and downstream, passing through obstacles which may represent ability of re-colonization. The animals are more active during the night period, probably a strategy to avoid predators that are active during the day; the selection of substrate is not associated to sediment texture.
publishDate 2011
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dc.relation.ispartof.pt_BR.fl_str_mv Nauplius. Porto Alegre. Vol. 19, no. 1 (2011), p. 41-54
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