Disentangling food quantity and quality effects in zooplankton response to P‐enrichment and UV radiation
In a 32‐yr record in oligotrophic Lake La Caldera (Sierra Nevada, Spain) biomass of zooplankton was strongly correlated with precipitation, aerosol deposition intensity, and ultraviolet radiation (UVR). The food associated‐effects of these factors for zooplankton growth were tested in field‐laborato...
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crwiley:10.4319/lo.2012.57.1.0235 2024-06-23T07:57:30+00:00 Disentangling food quantity and quality effects in zooplankton response to P‐enrichment and UV radiation Villar-Argaiz, Manuel Bullejos, Francisco José Medina-Sánchez, Juan Manuel Ramos-Rodríguez, Eloísa Delgado-Molina, José Antonio Carrillo, Presentación 2012 http://dx.doi.org/10.4319/lo.2012.57.1.0235 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.2012.57.1.0235 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.2012.57.1.0235 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Limnology and Oceanography volume 57, issue 1, page 235-250 ISSN 0024-3590 1939-5590 journal-article 2012 crwiley https://doi.org/10.4319/lo.2012.57.1.0235 2024-06-04T06:42:04Z In a 32‐yr record in oligotrophic Lake La Caldera (Sierra Nevada, Spain) biomass of zooplankton was strongly correlated with precipitation, aerosol deposition intensity, and ultraviolet radiation (UVR). The food associated‐effects of these factors for zooplankton growth were tested in field‐laboratory experiments with the aim of separating the effects of food quantity from those of food quality at low food conditions, where there is good evidence to support the existence of food quality effects. Manipulation of nutrients generated a large food quantity gradient that exerted the strongest effect on zooplankton growth, with no significant role of UVR. Growth curves were fitted to a saturation function that reached a plateau at increasing seston levels of ca. 250, 500, and 1000 µg C L −1 for the rotifer Keratella cochlearis , the copepod Mixodiaptomus laciniatus , and the cladoceran Daphnia pulicaria , respectively, and after which growth decreased in M. laciniatus . Nutrients and to a lesser extent UVR also affected seston quality, which had a minor effect on zooplankton growth. K. cochlearis growth was strongly related to the P content of seston, whereas M. laciniatus and D. pulicaria growth were positively correlated with a P‐normalized ω 3‐polyunsaturated fatty acid index ( ω 3‐PUFA:P). The increase in seston associated with more intense and frequent atmospheric depositions would adversely affect copepods, but improve growth of C‐limited cladocerans and P‐limited rotifers in pristine ecosystems of the Mediterranean region. Article in Journal/Newspaper Copepods Rotifer Wiley Online Library Limnology and Oceanography 57 1 235 250 |
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Wiley Online Library |
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crwiley |
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English |
description |
In a 32‐yr record in oligotrophic Lake La Caldera (Sierra Nevada, Spain) biomass of zooplankton was strongly correlated with precipitation, aerosol deposition intensity, and ultraviolet radiation (UVR). The food associated‐effects of these factors for zooplankton growth were tested in field‐laboratory experiments with the aim of separating the effects of food quantity from those of food quality at low food conditions, where there is good evidence to support the existence of food quality effects. Manipulation of nutrients generated a large food quantity gradient that exerted the strongest effect on zooplankton growth, with no significant role of UVR. Growth curves were fitted to a saturation function that reached a plateau at increasing seston levels of ca. 250, 500, and 1000 µg C L −1 for the rotifer Keratella cochlearis , the copepod Mixodiaptomus laciniatus , and the cladoceran Daphnia pulicaria , respectively, and after which growth decreased in M. laciniatus . Nutrients and to a lesser extent UVR also affected seston quality, which had a minor effect on zooplankton growth. K. cochlearis growth was strongly related to the P content of seston, whereas M. laciniatus and D. pulicaria growth were positively correlated with a P‐normalized ω 3‐polyunsaturated fatty acid index ( ω 3‐PUFA:P). The increase in seston associated with more intense and frequent atmospheric depositions would adversely affect copepods, but improve growth of C‐limited cladocerans and P‐limited rotifers in pristine ecosystems of the Mediterranean region. |
format |
Article in Journal/Newspaper |
author |
Villar-Argaiz, Manuel Bullejos, Francisco José Medina-Sánchez, Juan Manuel Ramos-Rodríguez, Eloísa Delgado-Molina, José Antonio Carrillo, Presentación |
spellingShingle |
Villar-Argaiz, Manuel Bullejos, Francisco José Medina-Sánchez, Juan Manuel Ramos-Rodríguez, Eloísa Delgado-Molina, José Antonio Carrillo, Presentación Disentangling food quantity and quality effects in zooplankton response to P‐enrichment and UV radiation |
author_facet |
Villar-Argaiz, Manuel Bullejos, Francisco José Medina-Sánchez, Juan Manuel Ramos-Rodríguez, Eloísa Delgado-Molina, José Antonio Carrillo, Presentación |
author_sort |
Villar-Argaiz, Manuel |
title |
Disentangling food quantity and quality effects in zooplankton response to P‐enrichment and UV radiation |
title_short |
Disentangling food quantity and quality effects in zooplankton response to P‐enrichment and UV radiation |
title_full |
Disentangling food quantity and quality effects in zooplankton response to P‐enrichment and UV radiation |
title_fullStr |
Disentangling food quantity and quality effects in zooplankton response to P‐enrichment and UV radiation |
title_full_unstemmed |
Disentangling food quantity and quality effects in zooplankton response to P‐enrichment and UV radiation |
title_sort |
disentangling food quantity and quality effects in zooplankton response to p‐enrichment and uv radiation |
publisher |
Wiley |
publishDate |
2012 |
url |
http://dx.doi.org/10.4319/lo.2012.57.1.0235 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.2012.57.1.0235 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.2012.57.1.0235 |
genre |
Copepods Rotifer |
genre_facet |
Copepods Rotifer |
op_source |
Limnology and Oceanography volume 57, issue 1, page 235-250 ISSN 0024-3590 1939-5590 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.4319/lo.2012.57.1.0235 |
container_title |
Limnology and Oceanography |
container_volume |
57 |
container_issue |
1 |
container_start_page |
235 |
op_container_end_page |
250 |
_version_ |
1802651173843369984 |