. The Canadian field-naturalist. 1990 Henny, Blus, and Grove: Western Grebe in Puget Sound 461. Figure 1. Location of Commencement Bay and Tacoma Waterways, Washington. nated biphenyls (PCBs) and hexachlorobenzene (HCB) in livers, fish residue information from Commencement Bay was limited to edible parts for human consumption (muscle) and therefore, does not reflect whole body burden which would be higher if liver and other organs were included. However, the data available provide useful comparative information. The contaminants studied were from the US EPA list of priority pollutants and incl
. The Canadian field-naturalist. 1990 Henny, Blus, and Grove: Western Grebe in Puget Sound 461. Figure 1. Location of Commencement Bay and Tacoma Waterways, Washington. nated biphenyls (PCBs) and hexachlorobenzene (HCB) in livers, fish residue information from Commencement Bay was limited to edible parts for human consumption (muscle) and therefore, does not reflect whole body burden which would be higher if liver and other organs were included. However, the data available provide useful comparative information. The contaminants studied were from the US EPA list of priority pollutants and included several previously found in high concentrations in Commencement Bay sediments (selenium, copper, arsenic, mercury, lead, PCBs, and organochlorine pesticides including HCB which also has an industrial source). Study Area Commencement Bay is a hydrologically complex, deep-water embayment (170m maxi- mum depth) in Puget Sound (Figure 1). The Puyallup River is the major source of freshwater to the Bay, supplying an average of 5800 m^/min of silt-laden water (Dexter et al. 1981). Dredge material disposal occurred at station DS5 from 1971 through 1975, and dredge material and industrial waste disposal has taken place at station DSl since 1972 (Schults et al. 1987). The head of the Bay, bordering the waterways, is heavily industrialized with chemical manufacturing plants, a metals reclamation yard, a pulp mill, log holding areas, petroleum refineries, marinas, ship repair/ manufacturing facilities, pole treating yard, tanners, food processors, and other activities associated with marine commerce. The Western Grebes we studied wintered within 1 km of shoreline at the head of Commencement Bay (Figure 1). Methods Grebes were collected from a boat with a shotgun (steel shot), immediately placed in aluminum foil and frozen for later processing. During the processing, the bursa of Fabricius, a cloacal diverticulum, was measured to the nearest mm in an attempt to age the grebes. The bur
Size: 1763px × 1417px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorottawafi, bookcentury1900, bookdecade1910, bookyear1919
