Toxic thresholds of cadmium and lead to oceanic phytoplankton: Cell size and ocean basin–dependent effects
Abstract Thresholds of cadmium (Cd) and lead (Pb) toxic to oceanic phytoplankton were examined in natural communities from the Mediterranean and Black Seas and the North East Atlantic Ocean. At concentrations of added Cd and Pb greater than 0.11 µg L −1 , cell abundances and growth rates decreased w...
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crwiley:10.1002/etc.1893 2024-09-15T18:24:43+00:00 Toxic thresholds of cadmium and lead to oceanic phytoplankton: Cell size and ocean basin–dependent effects Echeveste, P. Agustí, S. Tovar‐Sánchez, A. 2012 http://dx.doi.org/10.1002/etc.1893 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fetc.1893 https://setac.onlinelibrary.wiley.com/doi/pdf/10.1002/etc.1893 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Environmental Toxicology and Chemistry volume 31, issue 8, page 1887-1894 ISSN 0730-7268 1552-8618 journal-article 2012 crwiley https://doi.org/10.1002/etc.1893 2024-09-05T05:02:45Z Abstract Thresholds of cadmium (Cd) and lead (Pb) toxic to oceanic phytoplankton were examined in natural communities from the Mediterranean and Black Seas and the North East Atlantic Ocean. At concentrations of added Cd and Pb greater than 0.11 µg L −1 , cell abundances and growth rates decreased with increasing addition of Cd and Pb, for all phytoplankton populations. The lethal concentrations at which populations decreased by half (LC50s), ranged from 0.23 to 498.7 µg L −1 Cd for Atlantic Prochlorococcus and Black Sea picoeukaryotes, respectively, and from 20 to 465.2 µg L −1 Pb for Mediterranean Synechococcus and Black Sea nanoplankton, respectively. These lethal concentrations were significantly lower than those previously reported for phytoplankton cultures. The LC50s were strongly related to population cell size, increasing as cell size increased, indicating that oceanic picocyanobacteria Prochlorococcus and Synechococcus populations were the most sensitive, and the largest phytoplankton cells the most resistant. Based on this relationship, differences in sensitivity to Cd across systems were detected, with Black Sea phytoplankton communities being more resistant (up to 100 times) than similar sized phytoplankton of the Mediterranean Sea and Atlantic Ocean. Environ. Toxicol. Chem. 2012; 31: 1887–1894. © 2012 SETAC Article in Journal/Newspaper North East Atlantic Wiley Online Library Environmental Toxicology and Chemistry 31 8 1887 1894 |
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Wiley Online Library |
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English |
description |
Abstract Thresholds of cadmium (Cd) and lead (Pb) toxic to oceanic phytoplankton were examined in natural communities from the Mediterranean and Black Seas and the North East Atlantic Ocean. At concentrations of added Cd and Pb greater than 0.11 µg L −1 , cell abundances and growth rates decreased with increasing addition of Cd and Pb, for all phytoplankton populations. The lethal concentrations at which populations decreased by half (LC50s), ranged from 0.23 to 498.7 µg L −1 Cd for Atlantic Prochlorococcus and Black Sea picoeukaryotes, respectively, and from 20 to 465.2 µg L −1 Pb for Mediterranean Synechococcus and Black Sea nanoplankton, respectively. These lethal concentrations were significantly lower than those previously reported for phytoplankton cultures. The LC50s were strongly related to population cell size, increasing as cell size increased, indicating that oceanic picocyanobacteria Prochlorococcus and Synechococcus populations were the most sensitive, and the largest phytoplankton cells the most resistant. Based on this relationship, differences in sensitivity to Cd across systems were detected, with Black Sea phytoplankton communities being more resistant (up to 100 times) than similar sized phytoplankton of the Mediterranean Sea and Atlantic Ocean. Environ. Toxicol. Chem. 2012; 31: 1887–1894. © 2012 SETAC |
format |
Article in Journal/Newspaper |
author |
Echeveste, P. Agustí, S. Tovar‐Sánchez, A. |
spellingShingle |
Echeveste, P. Agustí, S. Tovar‐Sánchez, A. Toxic thresholds of cadmium and lead to oceanic phytoplankton: Cell size and ocean basin–dependent effects |
author_facet |
Echeveste, P. Agustí, S. Tovar‐Sánchez, A. |
author_sort |
Echeveste, P. |
title |
Toxic thresholds of cadmium and lead to oceanic phytoplankton: Cell size and ocean basin–dependent effects |
title_short |
Toxic thresholds of cadmium and lead to oceanic phytoplankton: Cell size and ocean basin–dependent effects |
title_full |
Toxic thresholds of cadmium and lead to oceanic phytoplankton: Cell size and ocean basin–dependent effects |
title_fullStr |
Toxic thresholds of cadmium and lead to oceanic phytoplankton: Cell size and ocean basin–dependent effects |
title_full_unstemmed |
Toxic thresholds of cadmium and lead to oceanic phytoplankton: Cell size and ocean basin–dependent effects |
title_sort |
toxic thresholds of cadmium and lead to oceanic phytoplankton: cell size and ocean basin–dependent effects |
publisher |
Wiley |
publishDate |
2012 |
url |
http://dx.doi.org/10.1002/etc.1893 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fetc.1893 https://setac.onlinelibrary.wiley.com/doi/pdf/10.1002/etc.1893 |
genre |
North East Atlantic |
genre_facet |
North East Atlantic |
op_source |
Environmental Toxicology and Chemistry volume 31, issue 8, page 1887-1894 ISSN 0730-7268 1552-8618 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/etc.1893 |
container_title |
Environmental Toxicology and Chemistry |
container_volume |
31 |
container_issue |
8 |
container_start_page |
1887 |
op_container_end_page |
1894 |
_version_ |
1810465132901302272 |