High temperatures and absence of light affect the hatching of resting eggs of Daphnia in the tropics
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Anais da Academia Brasileira de Ciências (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000100179 |
Resumo: | Temperature and light are acknowledged as important factors for hatching of resting eggs. The knowledge of how they affect hatching rates of this type of egg is important for the comprehension of the consequences of warming waters in recolonization of aquatic ecosystems dependent on dormant populations. This study aimed at comparing the influence of different temperature and light conditions on hatching rates of Daphnia ambigua andDaphnia laevis resting eggs from tropical environments. The ephippia were collected in the sediment of three aquatic ecosystems, in southeastern Brazil. For each lake, the resting eggs were exposed to temperatures of 20, 24, 28 and 32 °C, under light (12 h photoperiod) and dark conditions. The results showed that the absence of light and high temperatures have a negative influence on the hatching rates. Statistical differences for hatching rates were also found when comparing the studied ecosystems (ranging from 0.6 to 31%), indicating the importance of local environmental factors for diapause and maintenance of active populations. |
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High temperatures and absence of light affect the hatching of resting eggs of Daphnia in the tropicsCladoceradiapauseephippiumlighttemperaturetropical aquatic ecosystemsTemperature and light are acknowledged as important factors for hatching of resting eggs. The knowledge of how they affect hatching rates of this type of egg is important for the comprehension of the consequences of warming waters in recolonization of aquatic ecosystems dependent on dormant populations. This study aimed at comparing the influence of different temperature and light conditions on hatching rates of Daphnia ambigua andDaphnia laevis resting eggs from tropical environments. The ephippia were collected in the sediment of three aquatic ecosystems, in southeastern Brazil. For each lake, the resting eggs were exposed to temperatures of 20, 24, 28 and 32 °C, under light (12 h photoperiod) and dark conditions. The results showed that the absence of light and high temperatures have a negative influence on the hatching rates. Statistical differences for hatching rates were also found when comparing the studied ecosystems (ranging from 0.6 to 31%), indicating the importance of local environmental factors for diapause and maintenance of active populations.Academia Brasileira de Ciências2016-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000100179Anais da Academia Brasileira de Ciências v.88 n.1 2016reponame:Anais da Academia Brasileira de Ciências (Online)instname:Academia Brasileira de Ciências (ABC)instacron:ABC10.1590/0001-3765201620140595info:eu-repo/semantics/openAccessPaes,Thécia A.S.V.Rietzler,Arnola C.Pujoni,Diego G.F.Maia-Barbosa,Paulina M.eng2016-03-07T00:00:00Zoai:scielo:S0001-37652016000100179Revistahttp://www.scielo.br/aabchttps://old.scielo.br/oai/scielo-oai.php||aabc@abc.org.br1678-26900001-3765opendoar:2016-03-07T00:00Anais da Academia Brasileira de Ciências (Online) - Academia Brasileira de Ciências (ABC)false |
dc.title.none.fl_str_mv |
High temperatures and absence of light affect the hatching of resting eggs of Daphnia in the tropics |
title |
High temperatures and absence of light affect the hatching of resting eggs of Daphnia in the tropics |
spellingShingle |
High temperatures and absence of light affect the hatching of resting eggs of Daphnia in the tropics Paes,Thécia A.S.V. Cladocera diapause ephippium light temperature tropical aquatic ecosystems |
title_short |
High temperatures and absence of light affect the hatching of resting eggs of Daphnia in the tropics |
title_full |
High temperatures and absence of light affect the hatching of resting eggs of Daphnia in the tropics |
title_fullStr |
High temperatures and absence of light affect the hatching of resting eggs of Daphnia in the tropics |
title_full_unstemmed |
High temperatures and absence of light affect the hatching of resting eggs of Daphnia in the tropics |
title_sort |
High temperatures and absence of light affect the hatching of resting eggs of Daphnia in the tropics |
author |
Paes,Thécia A.S.V. |
author_facet |
Paes,Thécia A.S.V. Rietzler,Arnola C. Pujoni,Diego G.F. Maia-Barbosa,Paulina M. |
author_role |
author |
author2 |
Rietzler,Arnola C. Pujoni,Diego G.F. Maia-Barbosa,Paulina M. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Paes,Thécia A.S.V. Rietzler,Arnola C. Pujoni,Diego G.F. Maia-Barbosa,Paulina M. |
dc.subject.por.fl_str_mv |
Cladocera diapause ephippium light temperature tropical aquatic ecosystems |
topic |
Cladocera diapause ephippium light temperature tropical aquatic ecosystems |
description |
Temperature and light are acknowledged as important factors for hatching of resting eggs. The knowledge of how they affect hatching rates of this type of egg is important for the comprehension of the consequences of warming waters in recolonization of aquatic ecosystems dependent on dormant populations. This study aimed at comparing the influence of different temperature and light conditions on hatching rates of Daphnia ambigua andDaphnia laevis resting eggs from tropical environments. The ephippia were collected in the sediment of three aquatic ecosystems, in southeastern Brazil. For each lake, the resting eggs were exposed to temperatures of 20, 24, 28 and 32 °C, under light (12 h photoperiod) and dark conditions. The results showed that the absence of light and high temperatures have a negative influence on the hatching rates. Statistical differences for hatching rates were also found when comparing the studied ecosystems (ranging from 0.6 to 31%), indicating the importance of local environmental factors for diapause and maintenance of active populations. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-03-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000100179 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000100179 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0001-3765201620140595 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Academia Brasileira de Ciências |
publisher.none.fl_str_mv |
Academia Brasileira de Ciências |
dc.source.none.fl_str_mv |
Anais da Academia Brasileira de Ciências v.88 n.1 2016 reponame:Anais da Academia Brasileira de Ciências (Online) instname:Academia Brasileira de Ciências (ABC) instacron:ABC |
instname_str |
Academia Brasileira de Ciências (ABC) |
instacron_str |
ABC |
institution |
ABC |
reponame_str |
Anais da Academia Brasileira de Ciências (Online) |
collection |
Anais da Academia Brasileira de Ciências (Online) |
repository.name.fl_str_mv |
Anais da Academia Brasileira de Ciências (Online) - Academia Brasileira de Ciências (ABC) |
repository.mail.fl_str_mv |
||aabc@abc.org.br |
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1754302862741995520 |