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Habitat Selection Response of Anchovy and Sardine

Figure 6. Quotient curves related to water column parameters for Engraulis encrasicolus and Sardina pilchardus in both study areas.
Each plot shows the observed QI curve (solid line), its CI (dashed lines), and the frequency histogram of the considered environmental variable. The
dotted line in each plot indicates the value QI = 1.
doi:10.1371/journal.pone.0101498.g006

PLOS ONE | www.plosone.org 10 July 2014 | Volume 9 | Issue 7 | e101498