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Full-Text Articles in Marine Biology
Bioaccumulation Of Polychlorinated Biphenyls (Pcbs) In Atlantic Sea Bream (Archosargus Rhomboidalis) From Kingston Harbour, Jamaica, Ann-Teneil O'Connor, Dwight Robinson, Tara P. Dasgupta, Aaron T. Fisk, Ken G. Drouillard
Bioaccumulation Of Polychlorinated Biphenyls (Pcbs) In Atlantic Sea Bream (Archosargus Rhomboidalis) From Kingston Harbour, Jamaica, Ann-Teneil O'Connor, Dwight Robinson, Tara P. Dasgupta, Aaron T. Fisk, Ken G. Drouillard
Great Lakes Institute for Environmental Research Publications
Multiple sizes of Sea bream were collected from Kingston Harbour, Jamaica, to assess steady state bioaccumulation of polychlorinated biphenyls (PCBs) in a tropical fish. Sea beam fork lengths ranged from 7.3-21.5 cm (n=36 fish) and tissue lipids decreased with body length. Larger fish had lower δ13C isotopes compared to smaller fish, suggesting a change in diet. Linear regressions showed no differences in lipid equivalent sum PCB concentrations with size. However, differences in individual congener bioaccumulation trajectories occurred. Less hydrophobic PCBs decreased with increasing body length, intermediate PCBs showed no trend, whereas highly hydrophobic (above log KOW of …
Green Sea Turtles (Chelonia Mydas) In Bermuda Exhibit An Ontogenetic Diet Shift Despite Overexploitation Of Resources In Their Developmental Habitat, Claire Margaret Burgett
Green Sea Turtles (Chelonia Mydas) In Bermuda Exhibit An Ontogenetic Diet Shift Despite Overexploitation Of Resources In Their Developmental Habitat, Claire Margaret Burgett
FIU Electronic Theses and Dissertations
Green sea turtles in Bermuda are overgrazing the seagrasses on which later life stages are thought to specialize. I hypothesized that larger green turtles in Bermuda would display individual diet specializations during seagrass scarcity. Stable isotope methods were used to determine the diet composition of green sea turtles from the Bermuda Platform as a function of size class and in turtles captured in successive years. Individual turtles had a wide range of diets, however, the variation in diets was driven by differences among size class rather than within the size classes of larger turtles, indicating that green turtles undergo a …