Gulls

Birds. In avian populations, organochlorine-associated suppression of T-cell mediated immune response has been found in herring gull and Caspian tern colonies adjacent to the Great Lakes in Northern America.In the most severe cases, immune response was suppressed by up to 50%. Similarly, seabirds exposed to petrochemicals from oil spills have been found to have suppressed immune function. " ... 

The gate drive transformer will be bifilar wound where two identieal wires (about 30AWG) will be wound simultaneously with equal turns. For eonve-nienee, the transformer will be mounted on a four-pin, gull wing, surfaee mount header. 

CADA Critical Action and Decision Approach Gull, 1990... 

Gull, 1990, An Analysis of Nuclear Incidents resulting from Cognitive Error, 11th Advances in Reliability Technology Symposium, University of Liverpool, Elsevier, April... 

Dravins, D., 2001, Quantum-Optical Signatures of Stimulated Emission in T. Gull, S. Johansson, K. Davidson, eds., Astron. Soc. Pacific Conference series 242, 339... 

Figure 5. Trends in EDDT Concentrations in Herring Gull Eggs from Mugg s Island, Lake Ontario.

Phytoplankton Zooplankton Rainbow trout smelt Lake trout Herring gull eggs... 

Bioaccumulation factor (BF) of herring gull (Lams argentatus) eggs/Alewife (Alosa pseudoharengus) relative to PCB no 153 (Norstrom 1988). 

Because of its high toxicity, there is concern about very low levels of 2,3,7,8-TCDD in biota. This raises analytical problems, and high resolution capillary gas chromatography (GC) is needed to obtain reliable isomer-specific analyses at low concentrations. In the analysis of herring gull eggs collected from the Great Lakes, Hebert et al. (1994)... 

Hebert, C.E., Weseloh, D.V., and Kot, L. et al. (1994). Temporal trends and sources of PCDDs and PCDFs in the Great Lakes. Herring gull egg monitoring, 19S1-1991. Environmental Science and Technology 25, 1268-1277. 

White, D.H., Mitchell, C.A., and HUl, E.F. (1983). Parathion alters incnbation behavior of laughing gulls. Bulletin of Environmental Contamination and Toxicology 31, 93-91. 

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