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  • 1
    Electronic Resource
    Electronic Resource
    Estimating the Effect of Beach Nourishment on Caretta caretta (Loggerhead Sea Turtle) Nesting (2001)
    Boston, MA, USA : Blackwell Science Inc
    Restoration ecology 9 (2001), S. 0 
    Details
    ISSN: 1526-100X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Caretta caretta (loggerhead sea turtle) nesting activity was recorded daily during three seasons prior to and two seasons immediately following a beach nourishment (replenishment) project in Palm Beach County, Florida. Surveys were done at the nourished beach (Jupiter/Carlin) and at two natural beaches (Juno and Tequesta). The size of the nourishment effect on nesting activity was estimated using Before-After-Control-Impact Paired Series (BACIPS) models. Nesting declined by 4.4 to 5.4 nests km−1 day−1 on the nourished beach compared to the two natural beaches in the first season after nourishment. At the same time, false crawls (FC, non-nesting crawls) increased by 5.0 to 5.6 FC km−1 day−1 on the nourished beach. In the second season following nourishment, nesting was reduced by 0.5 to 1.6 nests km−1 day−1 on the nourished beach compared to the two natural beaches. The increase in false crawl frequency in the second season following nourishment was 0.7 to 0.9 FC km−1 day−1.These results suggest that beach nourishment significantly decreased loggerhead sea turtle nesting during the first season following the project. However, the size of the effect, in terms of nesting frequency and false crawl frequency, was much reduced by the second season following nourishment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1526-100x.2001.009003304.x
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  • 2
    Electronic Resource
    Electronic Resource
    Organochlorine Pesticides in Anhingas, White Ibises, and Apple Snails Collected in Florida, 1989–1991 (1996)
    Springer
    Archives of environmental contamination and toxicology 30 (1996), S. 379-383 
    Details
    ISSN: 1432-0703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Abstract. Apple snails (Pomacea paludosa) and eggs and nestlings of anhingas (Anhinga anhinga) and white ibises (Eudocimus albus) were collected in Palm Beach County, Florida from 1989–1991 and analyzed for organochlorine pesticide (OCP) residues. Pesticide residues were not detected in the apple snails. Residues of DDT, with maximum concentrations of 1,200 μg/kg wet weight occurred in 50% of the ibis samples but were not present in the anhinga samples. DDE occurred in 100% of avian samples at concentrations up to 2,100 μg/kg and was at significantly greater concentration in the anhingas. Dieldrin was not detected in the first year of the three-year study, but occurred in the majority of avian samples in the last two years at concentrations up to 610 μg/kg. Additionally, residues of seven pesticides and Aroclor® 1016 were detected infrequently at very low concentrations in the birds. While it is possible that nearby municipal solid waste landfills were the source of the pesticides, no corroborating evidence was found to support this speculation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002449900051
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Organochlorine pesticides in anhingas, white ibises, and apple snails collected in Florida, 1989–1991 (1996)
    Springer
    Archives of environmental contamination and toxicology 30 (1996), S. 379-383 
    Details
    ISSN: 1432-0703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Abstract Apple snails (Pomacea paludosa) and eggs and nestlings of anhingas (Anhinga anhinga) and white ibises (Eudocimus albus) were collected in Palm Beach County, Florida from 1989–1991 and analyzed for organochlorine pesticide (OCP) residues. Pesticide residues were not detected in the apple snails. Residues of DDT, with maximum concentrations of 1,200 μg/kg wet weight occurred in 50% of the ibis samples but were not present in the anhinga samples. DDE occurred in 100% of avian samples at concentrations up to 2,100 μg/kg and was at significantly greater concentration in the anhingas. Dieldrin was not detected in the first year of the three-year study, but occurred in the majority of avian samples in the last two years at concentrations up to 610 μg/kg. Additionally, residues of seven pesticides and Aroclor® 1016 were detected infrequently at very low concentrations in the birds. While it is possible that nearby municipal solid waste landfills were the source of the pesticides, no corroborating evidence was found to support this speculation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00212297
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Evaluation of Bioassays to Monitor Surface Microlayer Toxicity in Tropical Marine Waters (1997)
    Springer
    Archives of environmental contamination and toxicology 32 (1997), S. 135-140 
    Details
    ISSN: 1432-0703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Abstract. Bioassays were developed, using embryos of: coral, Montastraea faveolata; graysby, Epinephelus cruentatus; grouper, Epinephelus adscensionis x gruttatus (hybrid); queen conch, Strombus gigas; rock-boring urchin, Echinodermata lucunter; spotted seatrout, Cynoscion nebulosus; variegated urchin, Lytechinus variegatus; winged pearl oyster, Pteria colymbus; and yellowtail snapper, Ocyurus chrysurus. Relative sensitivities and precison of various species-endpoint combinations were evaluated using three reference toxicants: copper, sodium dodecyl sulfate, and Dibrom®. The 24-h P. colymbus embryo test had the best overall sensitivity and exhibited a high degree of precision. However, oyster embryos were difficult to obtain and did not aggregate at the air–water interface. Therefore, the P. colymbus embryo test was deemed unsuitable for use as a bioassay for monitoring sea-surface microlayer (SSML) toxicity. Tests based on normal development of L. variegatus to the early pluteus 3 stage and percent normal-live C. nebulosus larvae at 48 h were relatively sensitive and exhibited good replicability and repeatability. The L. variegatus urchin embryo test was also found to be highly reproducible. The results of this comparative study indicated that L. variegatus and C. nebulosus were suitable surrogates for coral-reef species in toxicity assessments of the SSML.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002449900165
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    Paper (German National Licenses)
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