Otolith shape and elemental signatures provide insights into the connectivity of euryhaline chelon labrosus inhabiting two close estuaries with different burdens of xenoestrogens in the southern bay of biscay
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.22/23785 |
Resumo: | Intersex gonads have been observed in thicklip grey mullet Chelon labrosus, inhabiting estuaries with high burdens of xenoestrogens in the Southeast Bay of Biscay, but knowledge of population connectivity among estuaries is lacking for this euryhaline fish species. This study investigates the population structure of C. labrosus using otolith shape and elemental signatures of 60 adults (overall length ~ 38 cm) from two estuaries 21 nautic miles apart, one with a high incidence of intersex condition (Gernika), and the other one pristine (Plentzia). Otolith shape analyses were performed using elliptical Fourier descriptors, while elemental signatures of whole sagittae were obtained by inductively coupled plasma mass spectrophotometry. Univariate and multivariate statistics were applied to determine if otolith signatures show patterns of homogeneity between estuaries. The data indicated significant differences in the otolith shape and elemental composition between mullets of Gernika and Plentzia. Elemental differences were mainly driven by Sr, Li (both higher in Plentzia) and Ba (higher in Gernika). The 98% re-classification success rate obtained from stepwise linear discriminant function analysis suggests that Gernika and Plentzia individuals form separated population units. The limited connectivity between these two close estuaries would indicate a different life history of exposure to chemicals, which might explain the high prevalence of intersex condition in Gernika and its absence in Plenztia. |
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Otolith shape and elemental signatures provide insights into the connectivity of euryhaline chelon labrosus inhabiting two close estuaries with different burdens of xenoestrogens in the southern bay of biscayContamination historyFishMugilidaeNatural tagsLife historyPopulationsIntersex gonads have been observed in thicklip grey mullet Chelon labrosus, inhabiting estuaries with high burdens of xenoestrogens in the Southeast Bay of Biscay, but knowledge of population connectivity among estuaries is lacking for this euryhaline fish species. This study investigates the population structure of C. labrosus using otolith shape and elemental signatures of 60 adults (overall length ~ 38 cm) from two estuaries 21 nautic miles apart, one with a high incidence of intersex condition (Gernika), and the other one pristine (Plentzia). Otolith shape analyses were performed using elliptical Fourier descriptors, while elemental signatures of whole sagittae were obtained by inductively coupled plasma mass spectrophotometry. Univariate and multivariate statistics were applied to determine if otolith signatures show patterns of homogeneity between estuaries. The data indicated significant differences in the otolith shape and elemental composition between mullets of Gernika and Plentzia. Elemental differences were mainly driven by Sr, Li (both higher in Plentzia) and Ba (higher in Gernika). The 98% re-classification success rate obtained from stepwise linear discriminant function analysis suggests that Gernika and Plentzia individuals form separated population units. The limited connectivity between these two close estuaries would indicate a different life history of exposure to chemicals, which might explain the high prevalence of intersex condition in Gernika and its absence in Plenztia.ElsevierRepositório Científico do Instituto Politécnico do PortoNzioka, AnthonyCancio, IbonCerio, Oihane Diaz dePinto, EdgarAlmeida, AgostinhoCorreia, Alberto Teodorico2023-10-26T15:48:05Z2023-07-032023-07-03T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.22/23785engNzioka, A., Cancio, I., Diaz de Cerio, O., Pinto, E., Almeida, A., & Correia, A. T. (2023). Otolith shape and elemental signatures provide insights into the connectivity of euryhaline Chelon labrosus inhabiting two close estuaries with different burdens of xenoestrogens in the Southern Bay of Biscay. Marine Environmental Research, 189, 106075. https://doi.org/10.1016/j.marenvres.2023.1060750141-113610.1016/j.marenvres.2023.1060751879-0291info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-01T01:46:29Zoai:recipp.ipp.pt:10400.22/23785Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:26:13.471211Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Otolith shape and elemental signatures provide insights into the connectivity of euryhaline chelon labrosus inhabiting two close estuaries with different burdens of xenoestrogens in the southern bay of biscay |
title |
Otolith shape and elemental signatures provide insights into the connectivity of euryhaline chelon labrosus inhabiting two close estuaries with different burdens of xenoestrogens in the southern bay of biscay |
spellingShingle |
Otolith shape and elemental signatures provide insights into the connectivity of euryhaline chelon labrosus inhabiting two close estuaries with different burdens of xenoestrogens in the southern bay of biscay Nzioka, Anthony Contamination history Fish Mugilidae Natural tags Life history Populations |
title_short |
Otolith shape and elemental signatures provide insights into the connectivity of euryhaline chelon labrosus inhabiting two close estuaries with different burdens of xenoestrogens in the southern bay of biscay |
title_full |
Otolith shape and elemental signatures provide insights into the connectivity of euryhaline chelon labrosus inhabiting two close estuaries with different burdens of xenoestrogens in the southern bay of biscay |
title_fullStr |
Otolith shape and elemental signatures provide insights into the connectivity of euryhaline chelon labrosus inhabiting two close estuaries with different burdens of xenoestrogens in the southern bay of biscay |
title_full_unstemmed |
Otolith shape and elemental signatures provide insights into the connectivity of euryhaline chelon labrosus inhabiting two close estuaries with different burdens of xenoestrogens in the southern bay of biscay |
title_sort |
Otolith shape and elemental signatures provide insights into the connectivity of euryhaline chelon labrosus inhabiting two close estuaries with different burdens of xenoestrogens in the southern bay of biscay |
author |
Nzioka, Anthony |
author_facet |
Nzioka, Anthony Cancio, Ibon Cerio, Oihane Diaz de Pinto, Edgar Almeida, Agostinho Correia, Alberto Teodorico |
author_role |
author |
author2 |
Cancio, Ibon Cerio, Oihane Diaz de Pinto, Edgar Almeida, Agostinho Correia, Alberto Teodorico |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Repositório Científico do Instituto Politécnico do Porto |
dc.contributor.author.fl_str_mv |
Nzioka, Anthony Cancio, Ibon Cerio, Oihane Diaz de Pinto, Edgar Almeida, Agostinho Correia, Alberto Teodorico |
dc.subject.por.fl_str_mv |
Contamination history Fish Mugilidae Natural tags Life history Populations |
topic |
Contamination history Fish Mugilidae Natural tags Life history Populations |
description |
Intersex gonads have been observed in thicklip grey mullet Chelon labrosus, inhabiting estuaries with high burdens of xenoestrogens in the Southeast Bay of Biscay, but knowledge of population connectivity among estuaries is lacking for this euryhaline fish species. This study investigates the population structure of C. labrosus using otolith shape and elemental signatures of 60 adults (overall length ~ 38 cm) from two estuaries 21 nautic miles apart, one with a high incidence of intersex condition (Gernika), and the other one pristine (Plentzia). Otolith shape analyses were performed using elliptical Fourier descriptors, while elemental signatures of whole sagittae were obtained by inductively coupled plasma mass spectrophotometry. Univariate and multivariate statistics were applied to determine if otolith signatures show patterns of homogeneity between estuaries. The data indicated significant differences in the otolith shape and elemental composition between mullets of Gernika and Plentzia. Elemental differences were mainly driven by Sr, Li (both higher in Plentzia) and Ba (higher in Gernika). The 98% re-classification success rate obtained from stepwise linear discriminant function analysis suggests that Gernika and Plentzia individuals form separated population units. The limited connectivity between these two close estuaries would indicate a different life history of exposure to chemicals, which might explain the high prevalence of intersex condition in Gernika and its absence in Plenztia. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-10-26T15:48:05Z 2023-07-03 2023-07-03T00:00:00Z |
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 |
http://hdl.handle.net/10400.22/23785 |
url |
http://hdl.handle.net/10400.22/23785 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Nzioka, A., Cancio, I., Diaz de Cerio, O., Pinto, E., Almeida, A., & Correia, A. T. (2023). Otolith shape and elemental signatures provide insights into the connectivity of euryhaline Chelon labrosus inhabiting two close estuaries with different burdens of xenoestrogens in the Southern Bay of Biscay. Marine Environmental Research, 189, 106075. https://doi.org/10.1016/j.marenvres.2023.106075 0141-1136 10.1016/j.marenvres.2023.106075 1879-0291 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
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reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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