Relating Disparity in Competitive Foraging Behavior Between Two Populations of Fiddler Crabs to the Subcellular Partitioning of Metals
Behavioral changes in aquatic organisms such as reduced prey capture and decreased mobility have been linked to exposure to contaminants in the field. The purpose of this study was to compare competitive foraging and dominance behaviors of two populations of the fiddler crab, Uca pugnax, and to exam...
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| Veröffentlicht in: | Archives of environmental contamination and toxicology 2009-04, Vol.56 (3), p.489-499 |
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| creator | Khoury, Jacques N Powers, Evelyn Patnaik, Pradyot Wallace, William G |
| description | Behavioral changes in aquatic organisms such as reduced prey capture and decreased mobility have been linked to exposure to contaminants in the field. The purpose of this study was to compare competitive foraging and dominance behaviors of two populations of the fiddler crab, Uca pugnax, and to examine the relationship between tissue metal residues and observed differences in behavior. Foraging behavior (number of total scoops and scoops on a protein-rich patch) and dominance behavior (percentage of successful attacks) of fiddler crabs from an impacted site (Meredith Creek, New York) and a reference site (Tuckerton, New Jersey) were compared in the laboratory. Tuckerton (Tk) crabs were found to have twice the number of total scoops (70 vs. 38 scoops, p < 0.05) and three times the number of scoops on patch (34 vs. 10 scoops, p < 0.05) than Meredith (Me) crabs. No difference was observed between crab populations in the number of successful attacks (i.e., fights over the protein-rich patch). Analyses of total metal body burdens and metals associated with various subcellular fractions showed that, when compared with Tk crabs, Me crabs had higher levels of Ag, Cd, Cu, Ni, and Se in the heat-denatured proteins (HdeP) (i.e., enzymes). Metal bioaccumulation can have inhibitory effects on enzymes, which play an essential role in the regulation of various biochemical, metabolic, and physiological activities in crustaceans. This study suggests that there is a relationship between the accumulation of metals in HdeP (i.e., enzymes) and impairment of competitive foraging behavior in fiddler crabs. Additionally, this study shows that when compared with dominance behavior, foraging behavior is a more sensitive indicator of metal exposure and might be used as an end point in ecotoxicology studies. |
| doi_str_mv | 10.1007/s00244-008-9270-y |
| format | Article |
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The purpose of this study was to compare competitive foraging and dominance behaviors of two populations of the fiddler crab, Uca pugnax, and to examine the relationship between tissue metal residues and observed differences in behavior. Foraging behavior (number of total scoops and scoops on a protein-rich patch) and dominance behavior (percentage of successful attacks) of fiddler crabs from an impacted site (Meredith Creek, New York) and a reference site (Tuckerton, New Jersey) were compared in the laboratory. Tuckerton (Tk) crabs were found to have twice the number of total scoops (70 vs. 38 scoops, p < 0.05) and three times the number of scoops on patch (34 vs. 10 scoops, p < 0.05) than Meredith (Me) crabs. No difference was observed between crab populations in the number of successful attacks (i.e., fights over the protein-rich patch). Analyses of total metal body burdens and metals associated with various subcellular fractions showed that, when compared with Tk crabs, Me crabs had higher levels of Ag, Cd, Cu, Ni, and Se in the heat-denatured proteins (HdeP) (i.e., enzymes). Metal bioaccumulation can have inhibitory effects on enzymes, which play an essential role in the regulation of various biochemical, metabolic, and physiological activities in crustaceans. This study suggests that there is a relationship between the accumulation of metals in HdeP (i.e., enzymes) and impairment of competitive foraging behavior in fiddler crabs. 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Psychology ; General aspects ; Invertebrates ; Laboratories ; Marine ; Metallothionein - metabolism ; Metals ; Metals - toxicity ; Monitoring/Environmental Analysis ; Nickel - toxicity ; Pollutants ; Pollution ; Predation ; Sediments ; Selenium - toxicity ; Shellfish ; Soil erosion ; Soil Science & Conservation ; Studies ; Toxicity ; Uca pugnax ; Water Pollutants, Chemical - toxicity</subject><ispartof>Archives of environmental contamination and toxicology, 2009-04, Vol.56 (3), p.489-499</ispartof><rights>Springer Science+Business Media, LLC 2008</rights><rights>2009 INIST-CNRS</rights><rights>Springer Science+Business Media, LLC 2009</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c485t-fbdc9ddbb84bc4715c2f414b127c3364b7caea631bce49e72d02215ac2a80a163</citedby><cites>FETCH-LOGICAL-c485t-fbdc9ddbb84bc4715c2f414b127c3364b7caea631bce49e72d02215ac2a80a163</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/s00244-008-9270-y$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00244-008-9270-y$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27903,27904,41467,42536,51297</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=21378601$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/19083137$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Khoury, Jacques N</creatorcontrib><creatorcontrib>Powers, Evelyn</creatorcontrib><creatorcontrib>Patnaik, Pradyot</creatorcontrib><creatorcontrib>Wallace, William G</creatorcontrib><title>Relating Disparity in Competitive Foraging Behavior Between Two Populations of Fiddler Crabs to the Subcellular Partitioning of Metals</title><title>Archives of environmental contamination and toxicology</title><addtitle>Arch Environ Contam Toxicol</addtitle><addtitle>Arch Environ Contam Toxicol</addtitle><description>Behavioral changes in aquatic organisms such as reduced prey capture and decreased mobility have been linked to exposure to contaminants in the field. The purpose of this study was to compare competitive foraging and dominance behaviors of two populations of the fiddler crab, Uca pugnax, and to examine the relationship between tissue metal residues and observed differences in behavior. Foraging behavior (number of total scoops and scoops on a protein-rich patch) and dominance behavior (percentage of successful attacks) of fiddler crabs from an impacted site (Meredith Creek, New York) and a reference site (Tuckerton, New Jersey) were compared in the laboratory. Tuckerton (Tk) crabs were found to have twice the number of total scoops (70 vs. 38 scoops, p < 0.05) and three times the number of scoops on patch (34 vs. 10 scoops, p < 0.05) than Meredith (Me) crabs. No difference was observed between crab populations in the number of successful attacks (i.e., fights over the protein-rich patch). Analyses of total metal body burdens and metals associated with various subcellular fractions showed that, when compared with Tk crabs, Me crabs had higher levels of Ag, Cd, Cu, Ni, and Se in the heat-denatured proteins (HdeP) (i.e., enzymes). Metal bioaccumulation can have inhibitory effects on enzymes, which play an essential role in the regulation of various biochemical, metabolic, and physiological activities in crustaceans. This study suggests that there is a relationship between the accumulation of metals in HdeP (i.e., enzymes) and impairment of competitive foraging behavior in fiddler crabs. Additionally, this study shows that when compared with dominance behavior, foraging behavior is a more sensitive indicator of metal exposure and might be used as an end point in ecotoxicology studies.</description><subject>Animal, plant and microbial ecology</subject><subject>Animals</subject><subject>Applied ecology</subject><subject>Aquatic ecology</subject><subject>Aquatic organisms</subject><subject>Behavior, Animal - drug effects</subject><subject>Bioaccumulation</subject><subject>Biological and medical sciences</subject><subject>Brachyura - drug effects</subject><subject>Brachyura - physiology</subject><subject>Cadmium - toxicity</subject><subject>Competition</subject><subject>Contaminants</subject><subject>Contamination</subject><subject>Copper - toxicity</subject><subject>Crustacea</subject><subject>Crustaceans</subject><subject>Decapoda</subject><subject>Earth and Environmental Science</subject><subject>Ecotoxicology</subject><subject>Ecotoxicology, biological effects of pollution</subject><subject>Environment</subject><subject>Environmental Chemistry</subject><subject>Environmental Health</subject><subject>Environmental monitoring</subject><subject>Enzymes</subject><subject>Foraging behavior</subject><subject>Fundamental and applied biological sciences. 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Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Khoury, Jacques N</au><au>Powers, Evelyn</au><au>Patnaik, Pradyot</au><au>Wallace, William G</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Relating Disparity in Competitive Foraging Behavior Between Two Populations of Fiddler Crabs to the Subcellular Partitioning of Metals</atitle><jtitle>Archives of environmental contamination and toxicology</jtitle><stitle>Arch Environ Contam Toxicol</stitle><addtitle>Arch Environ Contam Toxicol</addtitle><date>2009-04-01</date><risdate>2009</risdate><volume>56</volume><issue>3</issue><spage>489</spage><epage>499</epage><pages>489-499</pages><issn>0090-4341</issn><eissn>1432-0703</eissn><coden>AECTCV</coden><abstract>Behavioral changes in aquatic organisms such as reduced prey capture and decreased mobility have been linked to exposure to contaminants in the field. The purpose of this study was to compare competitive foraging and dominance behaviors of two populations of the fiddler crab, Uca pugnax, and to examine the relationship between tissue metal residues and observed differences in behavior. Foraging behavior (number of total scoops and scoops on a protein-rich patch) and dominance behavior (percentage of successful attacks) of fiddler crabs from an impacted site (Meredith Creek, New York) and a reference site (Tuckerton, New Jersey) were compared in the laboratory. Tuckerton (Tk) crabs were found to have twice the number of total scoops (70 vs. 38 scoops, p < 0.05) and three times the number of scoops on patch (34 vs. 10 scoops, p < 0.05) than Meredith (Me) crabs. No difference was observed between crab populations in the number of successful attacks (i.e., fights over the protein-rich patch). Analyses of total metal body burdens and metals associated with various subcellular fractions showed that, when compared with Tk crabs, Me crabs had higher levels of Ag, Cd, Cu, Ni, and Se in the heat-denatured proteins (HdeP) (i.e., enzymes). Metal bioaccumulation can have inhibitory effects on enzymes, which play an essential role in the regulation of various biochemical, metabolic, and physiological activities in crustaceans. This study suggests that there is a relationship between the accumulation of metals in HdeP (i.e., enzymes) and impairment of competitive foraging behavior in fiddler crabs. Additionally, this study shows that when compared with dominance behavior, foraging behavior is a more sensitive indicator of metal exposure and might be used as an end point in ecotoxicology studies.</abstract><cop>New York</cop><pub>New York : Springer-Verlag</pub><pmid>19083137</pmid><doi>10.1007/s00244-008-9270-y</doi><tpages>11</tpages></addata></record> |
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| subjects | Animal, plant and microbial ecology Animals Applied ecology Aquatic ecology Aquatic organisms Behavior, Animal - drug effects Bioaccumulation Biological and medical sciences Brachyura - drug effects Brachyura - physiology Cadmium - toxicity Competition Contaminants Contamination Copper - toxicity Crustacea Crustaceans Decapoda Earth and Environmental Science Ecotoxicology Ecotoxicology, biological effects of pollution Environment Environmental Chemistry Environmental Health Environmental monitoring Enzymes Foraging behavior Fundamental and applied biological sciences. Psychology General aspects Invertebrates Laboratories Marine Metallothionein - metabolism Metals Metals - toxicity Monitoring/Environmental Analysis Nickel - toxicity Pollutants Pollution Predation Sediments Selenium - toxicity Shellfish Soil erosion Soil Science & Conservation Studies Toxicity Uca pugnax Water Pollutants, Chemical - toxicity |
| title | Relating Disparity in Competitive Foraging Behavior Between Two Populations of Fiddler Crabs to the Subcellular Partitioning of Metals |
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