Mateo et al.: Otolith chemistry for Tautoga onitis in Narragansett Bay and Rhode Island coastal ponds 
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71°25'W 71°15'W 
71 °40'W 71 °30W 
(A) Map of tautog (Tautoga onitis) sampling stations in Narragansett Bay for 2005 
and 2006 that were surveyed for juvenile otolith element concentrations and isotopic 
signatures. Sampling stations are shown in arrows. (B) Map of the south coast of Rhode 
Island showing two coastal ponds (Charlestown, Point Judith) that were surveyed for 
tautog for years 2005 and 2006 to determine otolith element concentrations and isotopic 
signatures. Sampling stations are shown in arrows. 
in relation to V-PDB (Vienna Peedee Belemnite). Data 
were corrected for the usual isobaric interferences. The 
external precision (calculated from replicate analyses of 
an internal laboratory calcite standard) was 0.04% for 
5 13 C and 0.08% for d 18 0. 
Statistical analysis 
Two-way analysis of variance (ANOVA) was used to test 
for differences in fish body length among stations and 
years. We also examined relationships between otolith 
