Faeces of marine birds and mammals as substrates for microbial plankton communities
10 pages, 7 figures, 2 tables.-- Under a Creative Commons license The chemical composition of the seawater soluble fraction (WSF) of yellow-legged gulls and harbour seal faeces and their impact on microbial plankton communities from an eutrophic coastal area have been tested. After characterisation...
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ftcsic:oai:digital.csic.es:10261/259087 2024-06-23T07:53:31+00:00 Faeces of marine birds and mammals as substrates for microbial plankton communities Alba-González, Pablo Álvarez-Salgado, Xosé Antón Cobelo-García, A. Kaal, Joeri Teira, Eva Ministerio de Economía y Competitividad (España) 2022 http://hdl.handle.net/10261/259087 https://doi.org/10.1016/j.marenvres.2022.105560 https://doi.org/10.13039/501100003329 en eng Elsevier #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2017-83362-R/ES/PAPEL DE LAS INTERACCIONES FITOPLANCTON-BACTERIAS EN LA RESPUESTA DEL PLANCTON MICROBIANO A LA ENTRADA DE NUTRIENTES ALOCTONOS/ Publisher's version The underlying dataset has been published as supplementary material of the article in the publishers platform at DOI https://doi.org/10.1016/j.marenvres.2022.105560 https://doi.org/10.1016/j.marenvres.2022.105560 Sí Marine Environmental Research 174: 105560 (2022) 0141-1136 http://hdl.handle.net/10261/259087 doi:10.1016/j.marenvres.2022.105560 http://dx.doi.org/10.13039/501100003329 open Seal Seagull Faeces Water-soluble fraction Bioavailability Phytoplankton Bacterioplankton artículo http://purl.org/coar/resource_type/c_6501 2022 ftcsic https://doi.org/10.1016/j.marenvres.2022.10556010.13039/501100003329 2024-05-29T00:00:47Z 10 pages, 7 figures, 2 tables.-- Under a Creative Commons license The chemical composition of the seawater soluble fraction (WSF) of yellow-legged gulls and harbour seal faeces and their impact on microbial plankton communities from an eutrophic coastal area have been tested. After characterisation of the C:N:P stoichiometry, trace metals content and organic molecular composition of the faeces, significant differences between species have been observed in all parameters. Seagull faeces present about three times larger N content than seal faeces and are also richer in trace elements except for Cu and Zn. Organic nitrogen in seagull faeces is dominated by uric acid, while the proteins are the main N source in seal faeces. It is remarkable that seagull faeces are five times more soluble in seawater than seal faeces and present a much higher N content (48.0 versus 3.5 mg N in the WSF per gram of dry faeces), >85% of which as dissolved organic nitrogen, with C:N molar ratios of 2.4 and 13 for seagull and seal faeces, respectively. Based on this contrasting N content, large differences were expected in their impact on microbial populations. To test this hypothesis, a 3-day microcosm incubation experiment was performed, in which coastal seawater was amended with realistic concentrations of the WSF of seagull or seal faeces. A significant and similar increase in bacterial biomass occurred in response to both treatments. In the case of phytoplankton, the impact of the treatment with seagull faeces was significantly larger that the effect of the treatment with seal faeces. Our data suggest that the distinct competitive abilities of phytoplankton and bacteria largely influence the potential impact of distinct animal faeces on primary productivity in coastal ecosystems. Impacts on the microbial plankton communities do not affect only this trophic level, but the whole trophic chain, contributing to nutrient recycling in coastal areas where large populations of these species are settled This research was partially ... Article in Journal/Newspaper harbour seal Digital.CSIC (Spanish National Research Council) Marine Environmental Research 174 105560 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Seal Seagull Faeces Water-soluble fraction Bioavailability Phytoplankton Bacterioplankton |
spellingShingle |
Seal Seagull Faeces Water-soluble fraction Bioavailability Phytoplankton Bacterioplankton Alba-González, Pablo Álvarez-Salgado, Xosé Antón Cobelo-García, A. Kaal, Joeri Teira, Eva Faeces of marine birds and mammals as substrates for microbial plankton communities |
topic_facet |
Seal Seagull Faeces Water-soluble fraction Bioavailability Phytoplankton Bacterioplankton |
description |
10 pages, 7 figures, 2 tables.-- Under a Creative Commons license The chemical composition of the seawater soluble fraction (WSF) of yellow-legged gulls and harbour seal faeces and their impact on microbial plankton communities from an eutrophic coastal area have been tested. After characterisation of the C:N:P stoichiometry, trace metals content and organic molecular composition of the faeces, significant differences between species have been observed in all parameters. Seagull faeces present about three times larger N content than seal faeces and are also richer in trace elements except for Cu and Zn. Organic nitrogen in seagull faeces is dominated by uric acid, while the proteins are the main N source in seal faeces. It is remarkable that seagull faeces are five times more soluble in seawater than seal faeces and present a much higher N content (48.0 versus 3.5 mg N in the WSF per gram of dry faeces), >85% of which as dissolved organic nitrogen, with C:N molar ratios of 2.4 and 13 for seagull and seal faeces, respectively. Based on this contrasting N content, large differences were expected in their impact on microbial populations. To test this hypothesis, a 3-day microcosm incubation experiment was performed, in which coastal seawater was amended with realistic concentrations of the WSF of seagull or seal faeces. A significant and similar increase in bacterial biomass occurred in response to both treatments. In the case of phytoplankton, the impact of the treatment with seagull faeces was significantly larger that the effect of the treatment with seal faeces. Our data suggest that the distinct competitive abilities of phytoplankton and bacteria largely influence the potential impact of distinct animal faeces on primary productivity in coastal ecosystems. Impacts on the microbial plankton communities do not affect only this trophic level, but the whole trophic chain, contributing to nutrient recycling in coastal areas where large populations of these species are settled This research was partially ... |
author2 |
Ministerio de Economía y Competitividad (España) |
format |
Article in Journal/Newspaper |
author |
Alba-González, Pablo Álvarez-Salgado, Xosé Antón Cobelo-García, A. Kaal, Joeri Teira, Eva |
author_facet |
Alba-González, Pablo Álvarez-Salgado, Xosé Antón Cobelo-García, A. Kaal, Joeri Teira, Eva |
author_sort |
Alba-González, Pablo |
title |
Faeces of marine birds and mammals as substrates for microbial plankton communities |
title_short |
Faeces of marine birds and mammals as substrates for microbial plankton communities |
title_full |
Faeces of marine birds and mammals as substrates for microbial plankton communities |
title_fullStr |
Faeces of marine birds and mammals as substrates for microbial plankton communities |
title_full_unstemmed |
Faeces of marine birds and mammals as substrates for microbial plankton communities |
title_sort |
faeces of marine birds and mammals as substrates for microbial plankton communities |
publisher |
Elsevier |
publishDate |
2022 |
url |
http://hdl.handle.net/10261/259087 https://doi.org/10.1016/j.marenvres.2022.105560 https://doi.org/10.13039/501100003329 |
genre |
harbour seal |
genre_facet |
harbour seal |
op_relation |
#PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2017-83362-R/ES/PAPEL DE LAS INTERACCIONES FITOPLANCTON-BACTERIAS EN LA RESPUESTA DEL PLANCTON MICROBIANO A LA ENTRADA DE NUTRIENTES ALOCTONOS/ Publisher's version The underlying dataset has been published as supplementary material of the article in the publishers platform at DOI https://doi.org/10.1016/j.marenvres.2022.105560 https://doi.org/10.1016/j.marenvres.2022.105560 Sí Marine Environmental Research 174: 105560 (2022) 0141-1136 http://hdl.handle.net/10261/259087 doi:10.1016/j.marenvres.2022.105560 http://dx.doi.org/10.13039/501100003329 |
op_rights |
open |
op_doi |
https://doi.org/10.1016/j.marenvres.2022.10556010.13039/501100003329 |
container_title |
Marine Environmental Research |
container_volume |
174 |
container_start_page |
105560 |
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1802645238813032448 |