Metals and Metallothioneins in Morelet’s Crocodile (Crocodylus moreletii) from a Transboundary River Between Mexico and Belize
The aim of this study was to determine concentrations of heavy metals (cadmium [Cd] and mercury [Hg]) and metallothioneins (MTs) in blood plasma and caudal scutes of Morelet’s crocodile ( Crocodylus moreletii ) from Rio Hondo, a river and natural border between Mexico and Belize. Three transects of...
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| Veröffentlicht in: | Archives of environmental contamination and toxicology 2015-02, Vol.68 (2), p.265-273 |
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| creator | Buenfil-Rojas, A. M. Álvarez-Legorreta, T. Cedeño-Vázquez, J. R. |
| description | The aim of this study was to determine concentrations of heavy metals (cadmium [Cd] and mercury [Hg]) and metallothioneins (MTs) in blood plasma and caudal scutes of Morelet’s crocodile (
Crocodylus moreletii
) from Rio Hondo, a river and natural border between Mexico and Belize. Three transects of the river (approximately 20 km each) were surveyed in September 2012 and April 2013, and samples were collected from 24 crocodiles from these areas. In blood plasma, Cd (7.6 ± 9.6 ng/ml) was detected in 69 % of samples (
n
= 9); Hg (12.2 ± 9.2 ng/ml) was detected in 46 % of samples (
n
= 6); and MTs (10,900 ± 9,400 ng/ml) were detected in 92 % of samples (
n
= 12). In caudal scutes samples, Cd (31.7 ± 39.4 ng/g) was detected in 84 % of samples (
n
= 12) and Hg (374.1 ± 429.4 ng/g) in 83 % of samples (
n
= 20). No MTs were detected in caudal scutes. Hg concentrations in scutes from the Rio Hondo were 2- to 5-fold greater than those previously reported in scutes from other localities in northern Belize. In blood plasma, a significant positive relationship between Hg and body size was observed. Mean concentrations of Cd and MTs in size classes suggest that MTs may be related to Cd exposure. This is the first report of MT presence in crocodile blood. |
| doi_str_mv | 10.1007/s00244-014-0088-5 |
| format | Article |
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Crocodylus moreletii
) from Rio Hondo, a river and natural border between Mexico and Belize. Three transects of the river (approximately 20 km each) were surveyed in September 2012 and April 2013, and samples were collected from 24 crocodiles from these areas. In blood plasma, Cd (7.6 ± 9.6 ng/ml) was detected in 69 % of samples (
n
= 9); Hg (12.2 ± 9.2 ng/ml) was detected in 46 % of samples (
n
= 6); and MTs (10,900 ± 9,400 ng/ml) were detected in 92 % of samples (
n
= 12). In caudal scutes samples, Cd (31.7 ± 39.4 ng/g) was detected in 84 % of samples (
n
= 12) and Hg (374.1 ± 429.4 ng/g) in 83 % of samples (
n
= 20). No MTs were detected in caudal scutes. Hg concentrations in scutes from the Rio Hondo were 2- to 5-fold greater than those previously reported in scutes from other localities in northern Belize. In blood plasma, a significant positive relationship between Hg and body size was observed. Mean concentrations of Cd and MTs in size classes suggest that MTs may be related to Cd exposure. This is the first report of MT presence in crocodile blood.</description><identifier>ISSN: 0090-4341</identifier><identifier>EISSN: 1432-0703</identifier><identifier>DOI: 10.1007/s00244-014-0088-5</identifier><identifier>PMID: 25355289</identifier><language>eng</language><publisher>Boston: Springer US</publisher><subject>Alligators and Crocodiles - metabolism ; Animals ; Aquatic ecosystems ; Aquatic reptiles ; Belize ; Blood ; Blood plasma ; Body size ; Borders ; Cadmium ; Contamination ; Crocodiles ; Crocodylus moreletii ; Earth and Environmental Science ; Ecotoxicology ; Environment ; Environmental Chemistry ; Environmental Health ; Environmental Monitoring ; Freshwater ; Heavy metal content ; Heavy metals ; Laboratories ; Mercury ; Mercury (metal) ; Metal concentrations ; Metallothionein - metabolism ; Metallothioneins ; Metals - analysis ; Metals - metabolism ; Mexico ; Monitoring/Environmental Analysis ; Plasma ; Pollution ; Reptiles & amphibians ; Rivers ; Rivers - chemistry ; Soil Science & Conservation ; Studies ; Transboundary waters ; Water Pollutants, Chemical - analysis ; Water Pollutants, Chemical - metabolism ; Water pollution</subject><ispartof>Archives of environmental contamination and toxicology, 2015-02, Vol.68 (2), p.265-273</ispartof><rights>Springer Science+Business Media New York 2014</rights><rights>Springer Science+Business Media New York 2015</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c438t-384928bb5e5b9a16de98ee976a54a31a3e85ece25f11b3140c4eaa2d4c756f7c3</citedby><cites>FETCH-LOGICAL-c438t-384928bb5e5b9a16de98ee976a54a31a3e85ece25f11b3140c4eaa2d4c756f7c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00244-014-0088-5$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00244-014-0088-5$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27923,27924,41487,42556,51318</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/25355289$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Buenfil-Rojas, A. M.</creatorcontrib><creatorcontrib>Álvarez-Legorreta, T.</creatorcontrib><creatorcontrib>Cedeño-Vázquez, J. R.</creatorcontrib><title>Metals and Metallothioneins in Morelet’s Crocodile (Crocodylus moreletii) from a Transboundary River Between Mexico and Belize</title><title>Archives of environmental contamination and toxicology</title><addtitle>Arch Environ Contam Toxicol</addtitle><addtitle>Arch Environ Contam Toxicol</addtitle><description>The aim of this study was to determine concentrations of heavy metals (cadmium [Cd] and mercury [Hg]) and metallothioneins (MTs) in blood plasma and caudal scutes of Morelet’s crocodile (
Crocodylus moreletii
) from Rio Hondo, a river and natural border between Mexico and Belize. Three transects of the river (approximately 20 km each) were surveyed in September 2012 and April 2013, and samples were collected from 24 crocodiles from these areas. In blood plasma, Cd (7.6 ± 9.6 ng/ml) was detected in 69 % of samples (
n
= 9); Hg (12.2 ± 9.2 ng/ml) was detected in 46 % of samples (
n
= 6); and MTs (10,900 ± 9,400 ng/ml) were detected in 92 % of samples (
n
= 12). In caudal scutes samples, Cd (31.7 ± 39.4 ng/g) was detected in 84 % of samples (
n
= 12) and Hg (374.1 ± 429.4 ng/g) in 83 % of samples (
n
= 20). No MTs were detected in caudal scutes. Hg concentrations in scutes from the Rio Hondo were 2- to 5-fold greater than those previously reported in scutes from other localities in northern Belize. In blood plasma, a significant positive relationship between Hg and body size was observed. Mean concentrations of Cd and MTs in size classes suggest that MTs may be related to Cd exposure. This is the first report of MT presence in crocodile blood.</description><subject>Alligators and Crocodiles - metabolism</subject><subject>Animals</subject><subject>Aquatic ecosystems</subject><subject>Aquatic reptiles</subject><subject>Belize</subject><subject>Blood</subject><subject>Blood plasma</subject><subject>Body size</subject><subject>Borders</subject><subject>Cadmium</subject><subject>Contamination</subject><subject>Crocodiles</subject><subject>Crocodylus moreletii</subject><subject>Earth and Environmental Science</subject><subject>Ecotoxicology</subject><subject>Environment</subject><subject>Environmental Chemistry</subject><subject>Environmental Health</subject><subject>Environmental Monitoring</subject><subject>Freshwater</subject><subject>Heavy metal content</subject><subject>Heavy metals</subject><subject>Laboratories</subject><subject>Mercury</subject><subject>Mercury (metal)</subject><subject>Metal concentrations</subject><subject>Metallothionein - metabolism</subject><subject>Metallothioneins</subject><subject>Metals - analysis</subject><subject>Metals - metabolism</subject><subject>Mexico</subject><subject>Monitoring/Environmental Analysis</subject><subject>Plasma</subject><subject>Pollution</subject><subject>Reptiles & amphibians</subject><subject>Rivers</subject><subject>Rivers - chemistry</subject><subject>Soil Science & Conservation</subject><subject>Studies</subject><subject>Transboundary waters</subject><subject>Water Pollutants, Chemical - analysis</subject><subject>Water Pollutants, Chemical - metabolism</subject><subject>Water pollution</subject><issn>0090-4341</issn><issn>1432-0703</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNqNkc9qFjEUxYMo9rP6AG4k4KYuRm_-TmZpP1pbaBGkrkMmc0dTZiY1mdG2q76Gr-eTmHaqiCC4CLmQ3z0n9x5CnjN4zQDqNxmAS1kBKweMqdQDsmFS8ApqEA_JBqCBSgrJdsiTnM8BGDdGPiY7XAmluGk25OYUZzdk6qaO3pVDnD-HOGGYMg0TPY0JB5x_3HzPdJuij10YkO6t5dWwZDquRAivaJ_iSB09S27KbVymzqUr-iF8xUT3cf6GWPTwMvh4Z7ePQ7jGp-RRXz6Az-7vXfLx8OBse1SdvH93vH17UnkpzFwJIxtu2lahahvHdIeNQWxq7ZR0gjmBRqFHrnrGWsEkeInO8U76Wum-9mKX7K26Fyl-WTDPdgzZ4zC4CeOSLdMaQLPi8h-oktrUoGVBX_6FnsclTWWQQkmtlOBNUyi2Uj7FnBP29iKFsSzHMrC3Sdo1SVuStLdJWlV6XtwrL-2I3e-OX9EVgK9ALk_TJ0x_WP9T9SeJAKok</recordid><startdate>20150201</startdate><enddate>20150201</enddate><creator>Buenfil-Rojas, A. M.</creator><creator>Álvarez-Legorreta, T.</creator><creator>Cedeño-Vázquez, J. 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M. ; Álvarez-Legorreta, T. ; Cedeño-Vázquez, J. R.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c438t-384928bb5e5b9a16de98ee976a54a31a3e85ece25f11b3140c4eaa2d4c756f7c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Alligators and Crocodiles - metabolism</topic><topic>Animals</topic><topic>Aquatic ecosystems</topic><topic>Aquatic reptiles</topic><topic>Belize</topic><topic>Blood</topic><topic>Blood plasma</topic><topic>Body size</topic><topic>Borders</topic><topic>Cadmium</topic><topic>Contamination</topic><topic>Crocodiles</topic><topic>Crocodylus moreletii</topic><topic>Earth and Environmental Science</topic><topic>Ecotoxicology</topic><topic>Environment</topic><topic>Environmental Chemistry</topic><topic>Environmental Health</topic><topic>Environmental Monitoring</topic><topic>Freshwater</topic><topic>Heavy metal content</topic><topic>Heavy metals</topic><topic>Laboratories</topic><topic>Mercury</topic><topic>Mercury (metal)</topic><topic>Metal concentrations</topic><topic>Metallothionein - metabolism</topic><topic>Metallothioneins</topic><topic>Metals - analysis</topic><topic>Metals - metabolism</topic><topic>Mexico</topic><topic>Monitoring/Environmental Analysis</topic><topic>Plasma</topic><topic>Pollution</topic><topic>Reptiles & amphibians</topic><topic>Rivers</topic><topic>Rivers - chemistry</topic><topic>Soil Science & Conservation</topic><topic>Studies</topic><topic>Transboundary waters</topic><topic>Water Pollutants, Chemical - analysis</topic><topic>Water Pollutants, Chemical - metabolism</topic><topic>Water pollution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Buenfil-Rojas, A. 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M.</au><au>Álvarez-Legorreta, T.</au><au>Cedeño-Vázquez, J. R.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Metals and Metallothioneins in Morelet’s Crocodile (Crocodylus moreletii) from a Transboundary River Between Mexico and Belize</atitle><jtitle>Archives of environmental contamination and toxicology</jtitle><stitle>Arch Environ Contam Toxicol</stitle><addtitle>Arch Environ Contam Toxicol</addtitle><date>2015-02-01</date><risdate>2015</risdate><volume>68</volume><issue>2</issue><spage>265</spage><epage>273</epage><pages>265-273</pages><issn>0090-4341</issn><eissn>1432-0703</eissn><abstract>The aim of this study was to determine concentrations of heavy metals (cadmium [Cd] and mercury [Hg]) and metallothioneins (MTs) in blood plasma and caudal scutes of Morelet’s crocodile (
Crocodylus moreletii
) from Rio Hondo, a river and natural border between Mexico and Belize. Three transects of the river (approximately 20 km each) were surveyed in September 2012 and April 2013, and samples were collected from 24 crocodiles from these areas. In blood plasma, Cd (7.6 ± 9.6 ng/ml) was detected in 69 % of samples (
n
= 9); Hg (12.2 ± 9.2 ng/ml) was detected in 46 % of samples (
n
= 6); and MTs (10,900 ± 9,400 ng/ml) were detected in 92 % of samples (
n
= 12). In caudal scutes samples, Cd (31.7 ± 39.4 ng/g) was detected in 84 % of samples (
n
= 12) and Hg (374.1 ± 429.4 ng/g) in 83 % of samples (
n
= 20). No MTs were detected in caudal scutes. Hg concentrations in scutes from the Rio Hondo were 2- to 5-fold greater than those previously reported in scutes from other localities in northern Belize. In blood plasma, a significant positive relationship between Hg and body size was observed. Mean concentrations of Cd and MTs in size classes suggest that MTs may be related to Cd exposure. This is the first report of MT presence in crocodile blood.</abstract><cop>Boston</cop><pub>Springer US</pub><pmid>25355289</pmid><doi>10.1007/s00244-014-0088-5</doi><tpages>9</tpages></addata></record> |
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| ispartof | Archives of environmental contamination and toxicology, 2015-02, Vol.68 (2), p.265-273 |
| issn | 0090-4341 1432-0703 |
| language | eng |
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| source | MEDLINE; SpringerLink Journals - AutoHoldings |
| subjects | Alligators and Crocodiles - metabolism Animals Aquatic ecosystems Aquatic reptiles Belize Blood Blood plasma Body size Borders Cadmium Contamination Crocodiles Crocodylus moreletii Earth and Environmental Science Ecotoxicology Environment Environmental Chemistry Environmental Health Environmental Monitoring Freshwater Heavy metal content Heavy metals Laboratories Mercury Mercury (metal) Metal concentrations Metallothionein - metabolism Metallothioneins Metals - analysis Metals - metabolism Mexico Monitoring/Environmental Analysis Plasma Pollution Reptiles & amphibians Rivers Rivers - chemistry Soil Science & Conservation Studies Transboundary waters Water Pollutants, Chemical - analysis Water Pollutants, Chemical - metabolism Water pollution |
| title | Metals and Metallothioneins in Morelet’s Crocodile (Crocodylus moreletii) from a Transboundary River Between Mexico and Belize |
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