Publication
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
| dc.contributor.author | Nzioka, Anthony | |
| dc.contributor.author | Cancio, Ibon | |
| dc.contributor.author | Cerio, Oihane Diaz de | |
| dc.contributor.author | Pinto, Edgar | |
| dc.contributor.author | Almeida, Agostinho | |
| dc.contributor.author | Correia, Alberto Teodorico | |
| dc.date.accessioned | 2023-10-26T15:48:05Z | |
| dc.date.available | 2023-10-26T15:48:05Z | |
| dc.date.issued | 2023-07-03 | |
| dc.description.abstract | 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. | pt_PT |
| dc.description.version | info:eu-repo/semantics/publishedVersion | pt_PT |
| dc.identifier.citation | 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 | pt_PT |
| dc.identifier.doi | 10.1016/j.marenvres.2023.106075 | pt_PT |
| dc.identifier.eissn | 1879-0291 | |
| dc.identifier.issn | 0141-1136 | |
| dc.identifier.uri | http://hdl.handle.net/10400.22/23785 | |
| dc.language.iso | eng | pt_PT |
| dc.peerreviewed | yes | pt_PT |
| dc.publisher | Elsevier | pt_PT |
| dc.relation | This work was funded by the Spanish Ministry of Science. Innovation and Universities and EU-FEDER/ERDF (BORN2bEGG PGC2018-101442-B-I00), the Basque Government (Grants to consolidated research groups IT1302-19 and IT1743-22) and a transnational access project of the Horizon-2020 project ASSEMBLE PLUS. 730984). This study was also partially supported by the Strategic Funding UID/Multi/04423/2019 through national funds provided by FCT and European Regional Development Fund (ERDF) in the framework of the program PT2020. A.N. is a recipient of a pre-doctoral grant from the University of the Basque Country (UPV/EHU). | pt_PT |
| dc.relation.publisherversion | https://www.sciencedirect.com/science/article/pii/S0141113623002039?via%3Dihub | pt_PT |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | pt_PT |
| dc.subject | Contamination history | pt_PT |
| dc.subject | Fish | pt_PT |
| dc.subject | Mugilidae | pt_PT |
| dc.subject | Natural tags | pt_PT |
| dc.subject | Life history | pt_PT |
| dc.subject | Populations | pt_PT |
| dc.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 | pt_PT |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.endPage | 10 | pt_PT |
| oaire.citation.startPage | 1 | pt_PT |
| oaire.citation.title | Marine Environmental Research | pt_PT |
| oaire.citation.volume | 189 | pt_PT |
| person.familyName | Pinto | |
| person.givenName | Edgar | |
| person.identifier.ciencia-id | 271F-B7DF-8FAB | |
| person.identifier.orcid | 0000-0002-8021-4783 | |
| rcaap.rights | openAccess | pt_PT |
| rcaap.type | article | pt_PT |
| relation.isAuthorOfPublication | eaf9fc86-1a1c-437f-adee-d28040aa7f2f | |
| relation.isAuthorOfPublication.latestForDiscovery | eaf9fc86-1a1c-437f-adee-d28040aa7f2f |