Spatial Variation in Polycyclic Aromatic Hydrocarbon Concentrations in Eggs of Diamondback Terrapins, Malaclemys terrapin, from the Patuxent River, Maryland

Holliday, Dawn K.; Roosenburg, Willem M.; Elskus, Adria A.

doi:10.1007/s00128-007-9328-y

Cited by 10 publications

(10 citation statements)

References 15 publications

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“…The middle Patuxent River supports some commercial fishing and agriculture, but unlike some of the other, more polluted tributaries, it is not listed as a region of concern by the Chesapeake Bay Program [21; http://www.chesapeakebay.net/pubs/792.pdf] and concentrations of most sediment contaminants, including PCBs, are well below the effects range low as defined by the National Oceanic and Atmospheric Administration's National Status and Trends Program [22; ccma.nos.noaa.gov/publications/NCCOSTM47.pdf]. Terrapin eggs previously collected from this area showed low concentrations of polycyclic aromatic hydrocarbons following an oil pipeline rupture in 2000 but were not screened for any other contaminants at that time [23].…”

Section: Methodsmentioning

confidence: 99%

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Impacts of multiple stressors on growth and metabolic rate of Malaclemys terrapin

Holliday

Elskus

Roosenburg

2009

Enviro Toxic and Chemistry

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Coastal species encounter numerous physiological stressors ranging from daily fluctuations in salinity and temperature to anthropogenic contaminants, yet the effects of such stressor combinations on aquatic organisms remain largely unknown. Exposure to environmental contaminants, such as polychlorinated biphenyls (PCBs), can disrupt physiological processes, and while physiological responses to salinity change are well understood, the combined effects of salinity change and contaminants on these processes are unknown. Marine and brackish water turtles are often simultaneously exposed to both stressors. We exposed male, eight-month-old diamondback terrapins to one of four salinity treatments (0, 10, 20, and 30 parts per thousand) in the presence and absence of the anthropogenic stressor 3,3',4,4',5-pentachlorobiphenyl (PCB 126, 20 microg/g via intraperitoneal injection) and monitored growth (carapace length and mass) and metabolic rate for six months. Exposure to PCB 126 significantly reduced growth (p < 0.0001), lowered standard metabolic rates (SMRs; p < 0.0001), and altered respiratory pattern (p < 0.0001). Salinity stress reduced growth (p < 0.0001) and altered the respiratory pattern (p < 0.0001) but had no overall effect on metabolic rate (p = 0.33). No interactive effects of PCBs and salinity were seen on either growth or metabolic rate. Our data indicate terrapins may be able to cope with some effects of salinity change through physiological adjustments but are less able to cope with PCBs. We show that PCB 126 disrupts the ecophysiological mechanisms that affect life history traits and thus ultimately could alter population structure and dynamics. The present study enriches our understanding of the environmental toxicology of reptiles and aids in the interpretation of health conditions documented in field-collected turtles contaminated with PCBs.

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Section: Methodsmentioning

confidence: 99%

“…pdf]. Terrapin eggs previously collected from this area showed low concentrations of polycyclic aromatic hydrocarbons following an oil pipeline rupture in 2000 but were not screened for any other contaminants at that time [23].…”

Section: Methodsmentioning

confidence: 99%

Impacts of multiple stressors on growth and metabolic rate of Malaclemys terrapin

Holliday

Elskus

Roosenburg

2009

Enviro Toxic and Chemistry

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“…Hall et al (1983) reported concentrations of petroleum hydrocarbons in tissues of sea turtles exposed to oil after the Ixtoc spill in the Bay of Campeche, Mexico, in 1979. In freshwater turtles, studies have focused on PAH concentrations in eggs and subcutaneous fat (Bell et al 2006, Holliday et al 2008, Rowe et al 2009) or blood (Drabeck et al 2014, Meyer et al 2016) of turtles from known contaminated habitats. In general, information is lacking on baseline exposure, uptake and tissue distribution of parent and alkylated PAH homologs for juvenile and adult turtles.…”

Section: Contribution To the Theme Section 'Effects Of The Deepwater mentioning

confidence: 99%

Determining oil and dispersant exposure in sea turtles from the northern Gulf of Mexico resulting from the Deepwater Horizon oil spill

Ylitalo¹,

Collier²,

Anulacion³

et al. 2017

Endang. Species. Res.

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“…Turtle eggs have been used to evaluate contamination of heavy metals (Tryfonas et al 2006), PAHs (Holliday et al 2008), PCBs (Dabrowska et al 2006;Kelly et al 2008), organochlorine pesticides and dioxins/furans (de Solla and Fernie 2004;Henny et al 2003). Estimating concentrations of contaminants using eggs has been suggested as a potential non-lethal way to monitor metal exposure for endangered marine turtles (Sakai et al 1995).…”

Section: Introductionmentioning

confidence: 98%

Metal accumulation and evaluation of effects in a freshwater turtle

Halbrook

Sparling

et al. 2011

Ecotoxicology

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A variety of contaminants have been detected in aquatic and terrestrial environments around the Paducah Gaseous Diffusion Plant (PGDP), Kentucky. The presence of these contaminants at the PGDP may pose a risk to biota, yet little is known about the bioaccumulation of contaminants and associated effects in wildlife, especially in aquatic turtles. The current study was initiated to evaluate: (1) the accumulation of heavy metals (Cd, Cr, Cu, Pb, and Hg) in aquatic ecosystems associated with the PGDP using red-eared slider turtle (Trachemys scripta elegans) as biomonitors; (2) maternal transfer of heavy metals; and (3) potential hematological and immunological effects resulting from metal accumulation. A total of 26 turtles were collected from 7 ponds located south, adjacent, and north of the PGDP. Liver Cu concentrations were significantly different among ponds and Cu concentrations in eggs were positively correlated with female Cu concentrations in kidney. The concentrations of heavy metals measured in turtle tissues and eggs were low and, based on previous studies of reptiles and established avian threshold levels of heavy metals, did not appear to have adverse effects on aquatic turtles inhabiting ponds near the PGDP. However, total white blood cell counts, heterophil to lymphocyte ratio, and phytohemagglutinin stimulation index were correlated with metal concentrations. Because other factors may affect the hematological and immunological indices, further investigation is needed to determine if these effects are associated with metal exposure, other contaminants, or disease.

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Spatial Variation in Polycyclic Aromatic Hydrocarbon Concentrations in Eggs of Diamondback Terrapins, Malaclemys terrapin, from the Patuxent River, Maryland

Cited by 10 publications

References 15 publications

Impacts of multiple stressors on growth and metabolic rate of Malaclemys terrapin

Impacts of multiple stressors on growth and metabolic rate of Malaclemys terrapin

Determining oil and dispersant exposure in sea turtles from the northern Gulf of Mexico resulting from the Deepwater Horizon oil spill

Metal accumulation and evaluation of effects in a freshwater turtle

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