Early warming stress on rainbow trout juveniles impairs male reproduction but contrastingly elicits intergenerational thermotolerance

Abstract The exposure of adult fish to warm or high temperatures is known to impair reproduction, yet the long-term reproductive impacts for treatments at early life are not well clarified. This study aimed to evaluate the effects of warm temperature (WT) during juvenile stage on gonad maturation, g...

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Autores principales:	Arno Juliano Butzge, Tulio Teruo Yoshinaga, Omar David Moreno Acosta, Juan Ignacio Fernandino, Eduardo Antônio Sanches, Yara Aiko Tabata, Claudio de Oliveira, Neuza Sumico Takahashi, Ricardo Shohei Hattori
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/38348bfe29a140d3871628bef984a501
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spelling	oai:doaj.org-article:38348bfe29a140d3871628bef984a5012021-12-02T16:34:58ZEarly warming stress on rainbow trout juveniles impairs male reproduction but contrastingly elicits intergenerational thermotolerance10.1038/s41598-021-96514-12045-2322https://doaj.org/article/38348bfe29a140d3871628bef984a5012021-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-96514-1https://doaj.org/toc/2045-2322Abstract The exposure of adult fish to warm or high temperatures is known to impair reproduction, yet the long-term reproductive impacts for treatments at early life are not well clarified. This study aimed to evaluate the effects of warm temperature (WT) during juvenile stage on gonad maturation, gamete quality, and offspring thermotolerance in rainbow trout. While the comparison of basic reproductive parameters in WT females did not reveal any kind of impairment, many WT males showed an atrophied, undeveloped gonad, or a smaller testis with lower milt volume; sperm quality parameters in WT males and deformity rates in the respective progeny were also highly affected. However, despite of such negative effects, many of the remaining progeny presented better rates of survival and growth when exposed to the same conditions as those of parental fish (WT), suggesting that thermal stress in parr stage males elicited intergenerational thermotolerance after a single generation. The present results support that prolonged warming stress during early life stages can adversely affect key reproductive aspects, but contrastingly increase offspring performance at upper thermal ranges. These findings have implications on the capacity of fish to adapt and to cope with global warming.Arno Juliano ButzgeTulio Teruo YoshinagaOmar David Moreno AcostaJuan Ignacio FernandinoEduardo Antônio SanchesYara Aiko TabataClaudio de OliveiraNeuza Sumico TakahashiRicardo Shohei HattoriNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Arno Juliano Butzge Tulio Teruo Yoshinaga Omar David Moreno Acosta Juan Ignacio Fernandino Eduardo Antônio Sanches Yara Aiko Tabata Claudio de Oliveira Neuza Sumico Takahashi Ricardo Shohei Hattori Early warming stress on rainbow trout juveniles impairs male reproduction but contrastingly elicits intergenerational thermotolerance
description	Abstract The exposure of adult fish to warm or high temperatures is known to impair reproduction, yet the long-term reproductive impacts for treatments at early life are not well clarified. This study aimed to evaluate the effects of warm temperature (WT) during juvenile stage on gonad maturation, gamete quality, and offspring thermotolerance in rainbow trout. While the comparison of basic reproductive parameters in WT females did not reveal any kind of impairment, many WT males showed an atrophied, undeveloped gonad, or a smaller testis with lower milt volume; sperm quality parameters in WT males and deformity rates in the respective progeny were also highly affected. However, despite of such negative effects, many of the remaining progeny presented better rates of survival and growth when exposed to the same conditions as those of parental fish (WT), suggesting that thermal stress in parr stage males elicited intergenerational thermotolerance after a single generation. The present results support that prolonged warming stress during early life stages can adversely affect key reproductive aspects, but contrastingly increase offspring performance at upper thermal ranges. These findings have implications on the capacity of fish to adapt and to cope with global warming.
format	article
author	Arno Juliano Butzge Tulio Teruo Yoshinaga Omar David Moreno Acosta Juan Ignacio Fernandino Eduardo Antônio Sanches Yara Aiko Tabata Claudio de Oliveira Neuza Sumico Takahashi Ricardo Shohei Hattori
author_facet	Arno Juliano Butzge Tulio Teruo Yoshinaga Omar David Moreno Acosta Juan Ignacio Fernandino Eduardo Antônio Sanches Yara Aiko Tabata Claudio de Oliveira Neuza Sumico Takahashi Ricardo Shohei Hattori
author_sort	Arno Juliano Butzge
title	Early warming stress on rainbow trout juveniles impairs male reproduction but contrastingly elicits intergenerational thermotolerance
title_short	Early warming stress on rainbow trout juveniles impairs male reproduction but contrastingly elicits intergenerational thermotolerance
title_full	Early warming stress on rainbow trout juveniles impairs male reproduction but contrastingly elicits intergenerational thermotolerance
title_fullStr	Early warming stress on rainbow trout juveniles impairs male reproduction but contrastingly elicits intergenerational thermotolerance
title_full_unstemmed	Early warming stress on rainbow trout juveniles impairs male reproduction but contrastingly elicits intergenerational thermotolerance
title_sort	early warming stress on rainbow trout juveniles impairs male reproduction but contrastingly elicits intergenerational thermotolerance
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/38348bfe29a140d3871628bef984a501
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Early warming stress on rainbow trout juveniles impairs male reproduction but contrastingly elicits intergenerational thermotolerance

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