Opportunities for using Navy marine mammals to explore associations between organochlorine contaminants and unfavorable effects on reproduction

Reddy, Michelle L.; Reif, John S.; Bachand, Annette M.; Ridgway, Sam H.

doi:10.1016/s0048-9697(01)00741-0

Cited by 64 publications

(44 citation statements)

References 54 publications

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“…Our research indicates a greater need for biopsy location and collection standardization among studies. A few trace element and organic contaminant studies that have indicated a standardized sampling region for biopsy collection include Reddy et al [12,13] from 10 cm lateral to the anterior insertion of the dorsal fin of bottlenose dolphin, Yang et al [1] from the cervical region near the left flipper of Dall's porpoise, Wells et al [14,15] from below the caudal insertion of the dorsal fin of bottlenose dolphin, and Schwacke et al [16], Bryan et al [10], and Stavros et al [11] from 10 cm posterior to and 10 cm ventral to the posterior aspect of the dorsal fin of bottlenose dolphin.…”

Section: Introductionmentioning

confidence: 99%

Application of ICP-MS to Examining the Utility of Skin as a Monitoring Tissue for Trace Elements in Bottlenose Dolphin, Tursiops Truncatus

Bryan¹,

Christopher²,

McLellan³

et al. 2010

TOCBMJ

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Collision cell technology inductively coupled plasma mass spectrometry (CCT-ICP-MS) was applied to answer fundamental questions about the utility of bottlenose dolphin skin as a monitoring tissue for trace element concentrations. Bottlenose dolphin skin samples were obtained from two freshly dead animals during necropsies. The samples were collected from twelve standardized locations across each animal, representing a significant spatial surface area to test among site trace element concentration variability. Skin biopsy samples were analyzed for As, Cd, Cu, Mn, Mo, Pb, Rb, Se, Sr, V and Zn concentrations by CCT-ICP-MS, and Hg concentrations were separately measured by atomic fluorescence spectrometry (AFS). Wet mass concentrations ranged from > 100 μg/g (Zn) to < 0.0100 μg/g (V, Mo, Cd, and Pb). Relative standard deviations of less than 20% among sample sites were observed for Cu, As, Se, and Hg, demonstrating that deposition of these elements may be tightly regulated in skin tissue. Multifactor mixed-effect analysis of variance analyses (ANOVA) showed significant effects (p < 0.05) longitudinally (dorsal-ventral) for Cu, Mo, Ru, Se, V, and Zn indicating that standardized sample collection sites may be needed for comparative evaluation of these elements between animals, due to relatively heterogeneous distribution in skin.

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Section: Introductionmentioning

confidence: 99%

Application of ICP-MS to Examining the Utility of Skin as a Monitoring Tissue for Trace Elements in Bottlenose Dolphin, Tursiops Truncatus

Bryan¹,

Christopher²,

McLellan³

et al. 2010

TOCBMJ

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“…Bottlenose dolphins (Tursiops truncatus) have been recognized as marine mammal sentinels in aquatic and coastal environments (Reddy et al, 2001;Wells et al, 2004; (IRL), Florida, exhibit site fidelity to the region (Odell and Asper, 1990;Mazzoil et al, 2005), and serve as important indicators for the effects of exposure to pollutants in the marine environment.…”

Section: Introductionmentioning

confidence: 99%

Home Ranges of Bottlenose Dolphins (Tursiops truncatus) in the Indian River Lagoon, Florida: Environmental Correlates and Implications for Management Strategies

et al. 2008

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Photo-identification surveys conducted between 2002 and 2005 were used to determine dolphin home ranges and site fidelity within the Indian River Lagoon (IRL), Florida. The IRL was divided into six segments based on hydrodynamics and geographic features for purposes of characterization. Among the 615 dolphins with identifiable dorsal fins, 339 had > or =6 sightings and were used in segment and linear range analyses. The majority (98%) of dolphins were seen in < or =3 consecutive segments (331/339); of these, 44% (144/331) occurred in two segments, and 33% (109/331) in one segment. No dolphins were observed in all six segments. The largest number of dolphins was sighted in segment 1C (North Indian River). However, the highest density of dolphins was found in segment 2 (North-Central Indian River). Re-sighting rates for dolphins with > or =6 sightings ranged from 2.8 to 8.7 times observed. The mean linear home range varied from 22 to 54 km. Distributional analyses indicated that at least three different dolphin communities exist within the IRL: Mosquito Lagoon, and the North and South Indian River. No statistically significant correlations were found between the total number or density per km(2 )of dolphins and surface water area, salinity, or contaminant loads within segments of the lagoon. These results suggest that dolphins do not selectively avoid areas with relatively unfavorable water quality. IRL dolphins should be studied on smaller spatial scales than currently practiced, and potential anthropogenic impacts should be evaluated based on geographic partitioning.

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“…Chemical, toxicological and ecological approaches have been studied extensively in assessing impacts of heavy metal pollution in aquatic environments. Most of the papers published on organisms as pollution bioindicators have concentrated on invertebrates, mainly molluscs and crustaceans (Jones & Walker, 1979;Phillips & Segar, 1986;Reddy, Reif, Bachand, & Ridgway, 2001;Sogut & Yalcin, 2005), vertebrates, mainly fish (Altindag & Yigit, 2005;Ayas & Kolankaya, 1996;Barlas, 1999;Brim, Alam, & Jenkins, 2001;Canli, Kalay, & Ay, 2001;Farkas, Salánki, & Varanka, 2000;Guhathakurta & Kaviraj, 2000;Kalay, Ay, & Canli, 1999;Karadede & Ünlü, 2000;Kargin, 1998;Kucukbay & Orun, 2003;Storelli & Marcotrigiano, 2001;Tüzen, 2003;Ünlü & Gümgüm, 1993;Usero, Izquierdo, Morillo, & Gracia, 2004;Yilmaz, 2005).…”

Section: Introductionmentioning

confidence: 99%

Heavy Metal Concentrations in Water, Sediment, Fish and Some Benthic Organisms from Tigris River, Turkey

Karadede-Akin

Ünlü

2006

Environ Monit Assess

211

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In this study concentrations of heavy metals, such as Cd, Co, Cu, Fe, Mn, Ni, Pb and Zn were determined in water, sediment, muscle, liver and gill of fish (Silurus triostegus, Mastacembelus simack, Mystus halepensis, Orthrias euphraticus) the muscle and liver of crab (Potamon fluviatilis), the internal organs of fresh water snail (Physa acuta), and mussel (Unio elongatulus), and in whole biomass of green algae (Spirogyra sp.) examples collected seasonally from three selected sites (I, II, and III) of Tigris River and from a reference site on Resan Creek. In general, the average Cd, Cu, Mn, Ni, Zn, and Fe values in Sites I, II, and III were found to be high in spring and summer. The concentrations of heavy metals in the Tigris River are compared with previous studies in the same sites. The results showed that Cu levels have gradually decreased during recent years. In Tigris River, among the living organisms, i.e., those which are living in benthic region and showing biomonitor characteristic, crab, snail, green algae, mussel and fish are seen to be formed in sequence. Cu, Fe, Mn and Zn values obtained from the muscle of fish and from the mass of internal organs of mussel and snail were found to be under the acceptable values suggested.

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Opportunities for using Navy marine mammals to explore associations between organochlorine contaminants and unfavorable effects on reproduction

Cited by 64 publications

References 54 publications

Application of ICP-MS to Examining the Utility of Skin as a Monitoring Tissue for Trace Elements in Bottlenose Dolphin, Tursiops Truncatus

Application of ICP-MS to Examining the Utility of Skin as a Monitoring Tissue for Trace Elements in Bottlenose Dolphin, Tursiops Truncatus

Home Ranges of Bottlenose Dolphins (Tursiops truncatus) in the Indian River Lagoon, Florida: Environmental Correlates and Implications for Management Strategies

Heavy Metal Concentrations in Water, Sediment, Fish and Some Benthic Organisms from Tigris River, Turkey

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