Salinity regulation of copepod egg production in a large microtidal estuary
Salinity is a key variable for ecological processes in estuaries. Acartia tonsa is a typical estuarine copepod whose responses to salinity have been thoroughly studied in the laboratory. However, results cannot be extrapolated to the field, and formal comparisons between lab and field responses to s...
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| Andre forfattere: | , , |
| Format: | article |
| Sprog: | engelsk |
| Udgivet: |
2019
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| Online adgang: | https://hdl.handle.net/20.500.12008/28735 |
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| _version_ | 1868890176651001856 |
|---|---|
| author | Calliari, Danilo |
| author2 | Espinosa, Noé Martínez, Mariano Rodríguez-Graña, Laura |
| author2_role | author author author |
| author_browse | Calliari, Danilo Espinosa, Noé Martínez, Mariano Rodríguez-Graña, Laura |
| author_facet | Calliari, Danilo Espinosa, Noé Martínez, Mariano Rodríguez-Graña, Laura |
| author_role | author |
| collection | COLIBRI |
| dc.contributor.none.fl_str_mv | Calliari Danilo, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Ecología y Ciencias Ambientales. Espinosa Noé, Universidad de la República (Uruguay). CURE Martínez Mariano, Universidad de la República (Uruguay). CURE Rodríguez-Graña Laura, Universidad de la República (Uruguay). CURE |
| dc.creator.none.fl_str_mv | Calliari, Danilo Espinosa, Noé Martínez, Mariano Rodríguez-Graña, Laura |
| dc.date.none.fl_str_mv | 2019 2021-07-28T14:14:22Z 2021-07-28T14:14:22Z |
| dc.format.none.fl_str_mv | 9 h. application/pdf |
| dc.identifier.none.fl_str_mv | Calliari, D, Espinosa, N, Martínez, M y otro "Salinity regulation of copepod egg production in a large microtidal estuary". Brazilian Journal of Oceanography. [en línea] 2019, 67:e19267. 9 h. DOI: 10.1590/s1679-87592019026706708 1982-436X https://hdl.handle.net/20.500.12008/28735 10.1590/s1679-87592019026706708 |
| dc.language.none.fl_str_mv | en eng |
| dc.publisher.none.fl_str_mv | Universidade de São Paulo, Instituto Oceanográfico |
| dc.relation.none.fl_str_mv | Brazilian Journal of Oceanography, 2019, 67:e19267 |
| dc.rights.none.fl_str_mv | info:eu-repo/semantics/openAccess Licencia Creative Commons Atribución (CC - By 4.0) |
| dc.source.none.fl_str_mv | reponame:COLIBRI instname:Universidad de la República instacron:Universidad de la República |
| dc.subject.none.fl_str_mv | Copepods Estuary Acartia tonsa Egg production rate Río de la Plata |
| dc.title.none.fl_str_mv | Salinity regulation of copepod egg production in a large microtidal estuary |
| dc.type.none.fl_str_mv | Artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
| description | Salinity is a key variable for ecological processes in estuaries. Acartia tonsa is a typical estuarine copepod whose responses to salinity have been thoroughly studied in the laboratory. However, results cannot be extrapolated to the field, and formal comparisons between lab and field responses to salinity were not attempted. Here we compare lab-based with field copepod egg production rates (EPR) from the Río de la Plata estuary (RPE), with focus on A. tonsa. Field work was conducted between 2009 and 2011 in the mixing zone of the RPE. Water temperature, salinity and chlorophyll-a varied over ample ranges (temperature: 10.54 - 24.56ºC, salinity: 2.83 - 32.99, chlorophyll-a: 0.62 - 7.27 mg m-3). A. tonsa was the strongly dominant species. EPR ranged between 6.7 and 95.7 eggs female-1 day-1, and correlated to salinity, temperature (weakly), but not to chlorophyll. The relationship between A. tonsa’s EPR (EPRAT) and salinity was consistent with that obtained under laboratory conditions: a humped pattern with a maximum at intermediate salinities. However, differences were also evident, e.g., higher EPRAT was measured in the field. We speculate that discrepancies derive from nutritional differences between field and reference (laboratory) data sets. Besides salinity, food quality and quantity may be first order drivers of A. tonsa’s productivity in the RPE. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | anni_badae1c1017d5b8dcca45697f8f3b5bb |
| identifier_str_mv | Calliari, D, Espinosa, N, Martínez, M y otro "Salinity regulation of copepod egg production in a large microtidal estuary". Brazilian Journal of Oceanography. [en línea] 2019, 67:e19267. 9 h. DOI: 10.1590/s1679-87592019026706708 1982-436X 10.1590/s1679-87592019026706708 |
| instacron_str | Universidad de la República |
| institution | Universidad de la República |
| instname_str | Universidad de la República |
| language | eng |
| language_invalid_str_mv | en |
| network_acronym_str | anni |
| network_name_str | oai-lr-anni |
| oai_identifier_str | oai:colibri.udelar.edu.uy:20.500.12008/28735 |
| publishDate | 2019 |
| publishDateSort | 2019 |
| publisher.none.fl_str_mv | Universidade de São Paulo, Instituto Oceanográfico |
| reponame_str | COLIBRI |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | Licencia Creative Commons Atribución (CC - By 4.0) |
| spelling | Salinity regulation of copepod egg production in a large microtidal estuaryCalliari, DaniloEspinosa, NoéMartínez, MarianoRodríguez-Graña, LauraCopepodsEstuaryAcartia tonsaEgg production rateRío de la PlataSalinity is a key variable for ecological processes in estuaries. Acartia tonsa is a typical estuarine copepod whose responses to salinity have been thoroughly studied in the laboratory. However, results cannot be extrapolated to the field, and formal comparisons between lab and field responses to salinity were not attempted. Here we compare lab-based with field copepod egg production rates (EPR) from the Río de la Plata estuary (RPE), with focus on A. tonsa. Field work was conducted between 2009 and 2011 in the mixing zone of the RPE. Water temperature, salinity and chlorophyll-a varied over ample ranges (temperature: 10.54 - 24.56ºC, salinity: 2.83 - 32.99, chlorophyll-a: 0.62 - 7.27 mg m-3). A. tonsa was the strongly dominant species. EPR ranged between 6.7 and 95.7 eggs female-1 day-1, and correlated to salinity, temperature (weakly), but not to chlorophyll. The relationship between A. tonsa’s EPR (EPRAT) and salinity was consistent with that obtained under laboratory conditions: a humped pattern with a maximum at intermediate salinities. However, differences were also evident, e.g., higher EPRAT was measured in the field. We speculate that discrepancies derive from nutritional differences between field and reference (laboratory) data sets. Besides salinity, food quality and quantity may be first order drivers of A. tonsa’s productivity in the RPE.Universidade de São Paulo, Instituto OceanográficoCalliari Danilo, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Ecología y Ciencias Ambientales.Espinosa Noé, Universidad de la República (Uruguay). CUREMartínez Mariano, Universidad de la República (Uruguay). CURERodríguez-Graña Laura, Universidad de la República (Uruguay). CURE2021-07-28T14:14:22Z2021-07-28T14:14:22Z2019Artículoinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion9 h.application/pdfCalliari, D, Espinosa, N, Martínez, M y otro "Salinity regulation of copepod egg production in a large microtidal estuary". Brazilian Journal of Oceanography. [en línea] 2019, 67:e19267. 9 h. DOI: 10.1590/s1679-875920190267067081982-436Xhttps://hdl.handle.net/20.500.12008/2873510.1590/s1679-87592019026706708reponame:COLIBRIinstname:Universidad de la Repúblicainstacron:Universidad de la RepúblicaenengBrazilian Journal of Oceanography, 2019, 67:e19267Las obras depositadas en el Repositorio se rigen por la Ordenanza de los Derechos de la Propiedad Intelectual de la Universidad de la República.(Res. Nº 91 de C.D.C. de 8/III/1994 – D.O. 7/IV/1994) y por la Ordenanza del Repositorio Abierto de la Universidad de la República (Res. Nº 16 de C.D.C. de 07/10/2014)info:eu-repo/semantics/openAccessLicencia Creative Commons Atribución (CC - By 4.0)oai:colibri.udelar.edu.uy:20.500.12008/287352026-04-14T10:09:40Z |
| spellingShingle | Salinity regulation of copepod egg production in a large microtidal estuary Calliari, Danilo Copepods Estuary Acartia tonsa Egg production rate Río de la Plata |
| status_str | publishedVersion |
| title | Salinity regulation of copepod egg production in a large microtidal estuary |
| title_full | Salinity regulation of copepod egg production in a large microtidal estuary |
| title_fullStr | Salinity regulation of copepod egg production in a large microtidal estuary |
| title_full_unstemmed | Salinity regulation of copepod egg production in a large microtidal estuary |
| title_short | Salinity regulation of copepod egg production in a large microtidal estuary |
| title_sort | Salinity regulation of copepod egg production in a large microtidal estuary |
| topic | Copepods Estuary Acartia tonsa Egg production rate Río de la Plata |
| url | https://hdl.handle.net/20.500.12008/28735 |