A toxic diet: Transfer of contaminants to offspring through a parental care mechanism
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional do INPA |
Texto Completo: | https://repositorio.inpa.gov.br/handle/1/15057 |
Resumo: | The transfer of maternal contaminants to offspring during oogenesis and gestation is documented in many animals, and in mammals, contaminants may pass from mother to offspring during lactation. Although other non-mammalian vertebrates provide parental care in the form of nutritive secretions for offspring to feed from, the potential for toxicant transfer during nonmammalian parental care is rarely considered. The discus fish, Symphysodon spp., employs an unusual parental care strategy where fry feed on parental epidermal mucus for several weeks after hatching. This strategy has the potential to act as a method of contaminant transfer. In discus adults, both waterborne and dietary toxicants are sequestered and secreted into their epidermal mucus, the food on which fry depend. To determine whether parents could channel these contaminants directly to offspring, we exposed parents to aqueous cadmium (Cd) and recorded the subsequent feeding behaviour and Cd content of fry. Fry continued to feed normally from contaminated mucus and accumulated significant tissue concentrations of Cd. In conclusion, this parental care mechanism of the discus fish can expose offspring to harmful contaminants during the sensitive early stages of life and highlights that parent to offspring contaminant transfer after birth may be more widespread than previously thought. © 2013 Published by The Company of Biologists Ltd. |
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Maunder, Richard J.Buckley, JonathanVal, Adalberto LuisSloman, Katherine A.2020-05-07T14:02:16Z2020-05-07T14:02:16Z2013https://repositorio.inpa.gov.br/handle/1/1505710.1242/jeb.089102The transfer of maternal contaminants to offspring during oogenesis and gestation is documented in many animals, and in mammals, contaminants may pass from mother to offspring during lactation. Although other non-mammalian vertebrates provide parental care in the form of nutritive secretions for offspring to feed from, the potential for toxicant transfer during nonmammalian parental care is rarely considered. The discus fish, Symphysodon spp., employs an unusual parental care strategy where fry feed on parental epidermal mucus for several weeks after hatching. This strategy has the potential to act as a method of contaminant transfer. In discus adults, both waterborne and dietary toxicants are sequestered and secreted into their epidermal mucus, the food on which fry depend. To determine whether parents could channel these contaminants directly to offspring, we exposed parents to aqueous cadmium (Cd) and recorded the subsequent feeding behaviour and Cd content of fry. Fry continued to feed normally from contaminated mucus and accumulated significant tissue concentrations of Cd. In conclusion, this parental care mechanism of the discus fish can expose offspring to harmful contaminants during the sensitive early stages of life and highlights that parent to offspring contaminant transfer after birth may be more widespread than previously thought. © 2013 Published by The Company of Biologists Ltd.Volume 216, Número 19, Pags. 3587-3590Attribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/info:eu-repo/semantics/openAccessCadmiumAnimalsBiparentalCichlidDietDiscusEnvironmental ExposureEpidermisFeeding BehaviorFemaleGrowth, Development And AgingMaleMetabolismMucusWater PollutantBiparentalCadmiumDiscusMucusAnimalCadmiumCichlidsDietEnvironmental ExposureEpidermisFeeding BehaviorFemaleMaleMucusWater Pollutants, ChemicalA toxic diet: Transfer of contaminants to offspring through a parental care mechanisminfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleJournal of Experimental Biologyengreponame:Repositório Institucional do INPAinstname:Instituto Nacional de Pesquisas da Amazônia (INPA)instacron:INPAORIGINALartigo-inpa.pdfapplication/pdf228960https://repositorio.inpa.gov.br/bitstream/1/15057/1/artigo-inpa.pdf1af622ad764f9ff235bb224485fafff9MD51CC-LICENSElicense_rdfapplication/octet-stream914https://repositorio.inpa.gov.br/bitstream/1/15057/2/license_rdf4d2950bda3d176f570a9f8b328dfbbefMD521/150572020-07-14 10:43:33.691oai:repositorio:1/15057Repositório de PublicaçõesPUBhttps://repositorio.inpa.gov.br/oai/requestopendoar:2020-07-14T14:43:33Repositório Institucional do INPA - Instituto Nacional de Pesquisas da Amazônia (INPA)false |
dc.title.en.fl_str_mv |
A toxic diet: Transfer of contaminants to offspring through a parental care mechanism |
title |
A toxic diet: Transfer of contaminants to offspring through a parental care mechanism |
spellingShingle |
A toxic diet: Transfer of contaminants to offspring through a parental care mechanism Maunder, Richard J. Cadmium Animals Biparental Cichlid Diet Discus Environmental Exposure Epidermis Feeding Behavior Female Growth, Development And Aging Male Metabolism Mucus Water Pollutant Biparental Cadmium Discus Mucus Animal Cadmium Cichlids Diet Environmental Exposure Epidermis Feeding Behavior Female Male Mucus Water Pollutants, Chemical |
title_short |
A toxic diet: Transfer of contaminants to offspring through a parental care mechanism |
title_full |
A toxic diet: Transfer of contaminants to offspring through a parental care mechanism |
title_fullStr |
A toxic diet: Transfer of contaminants to offspring through a parental care mechanism |
title_full_unstemmed |
A toxic diet: Transfer of contaminants to offspring through a parental care mechanism |
title_sort |
A toxic diet: Transfer of contaminants to offspring through a parental care mechanism |
author |
Maunder, Richard J. |
author_facet |
Maunder, Richard J. Buckley, Jonathan Val, Adalberto Luis Sloman, Katherine A. |
author_role |
author |
author2 |
Buckley, Jonathan Val, Adalberto Luis Sloman, Katherine A. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Maunder, Richard J. Buckley, Jonathan Val, Adalberto Luis Sloman, Katherine A. |
dc.subject.eng.fl_str_mv |
Cadmium Animals Biparental Cichlid Diet Discus Environmental Exposure Epidermis Feeding Behavior Female Growth, Development And Aging Male Metabolism Mucus Water Pollutant Biparental Cadmium Discus Mucus Animal Cadmium Cichlids Diet Environmental Exposure Epidermis Feeding Behavior Female Male Mucus Water Pollutants, Chemical |
topic |
Cadmium Animals Biparental Cichlid Diet Discus Environmental Exposure Epidermis Feeding Behavior Female Growth, Development And Aging Male Metabolism Mucus Water Pollutant Biparental Cadmium Discus Mucus Animal Cadmium Cichlids Diet Environmental Exposure Epidermis Feeding Behavior Female Male Mucus Water Pollutants, Chemical |
description |
The transfer of maternal contaminants to offspring during oogenesis and gestation is documented in many animals, and in mammals, contaminants may pass from mother to offspring during lactation. Although other non-mammalian vertebrates provide parental care in the form of nutritive secretions for offspring to feed from, the potential for toxicant transfer during nonmammalian parental care is rarely considered. The discus fish, Symphysodon spp., employs an unusual parental care strategy where fry feed on parental epidermal mucus for several weeks after hatching. This strategy has the potential to act as a method of contaminant transfer. In discus adults, both waterborne and dietary toxicants are sequestered and secreted into their epidermal mucus, the food on which fry depend. To determine whether parents could channel these contaminants directly to offspring, we exposed parents to aqueous cadmium (Cd) and recorded the subsequent feeding behaviour and Cd content of fry. Fry continued to feed normally from contaminated mucus and accumulated significant tissue concentrations of Cd. In conclusion, this parental care mechanism of the discus fish can expose offspring to harmful contaminants during the sensitive early stages of life and highlights that parent to offspring contaminant transfer after birth may be more widespread than previously thought. © 2013 Published by The Company of Biologists Ltd. |
publishDate |
2013 |
dc.date.issued.fl_str_mv |
2013 |
dc.date.accessioned.fl_str_mv |
2020-05-07T14:02:16Z |
dc.date.available.fl_str_mv |
2020-05-07T14:02:16Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://repositorio.inpa.gov.br/handle/1/15057 |
dc.identifier.doi.none.fl_str_mv |
10.1242/jeb.089102 |
url |
https://repositorio.inpa.gov.br/handle/1/15057 |
identifier_str_mv |
10.1242/jeb.089102 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Volume 216, Número 19, Pags. 3587-3590 |
dc.rights.driver.fl_str_mv |
Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ info:eu-repo/semantics/openAccess |
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Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Journal of Experimental Biology |
publisher.none.fl_str_mv |
Journal of Experimental Biology |
dc.source.none.fl_str_mv |
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