R. Yossi Hameshulam says: Whence is it derived that just as it (Eretz Yisrael) imparts flavors to the land, so it imparts flavors to the sea (i.e., the Mediterranean)? From (Bereshith 11:10) "and the gathering of the waters He called "'seas.'" Now the sea is one, viz. (Ibid. 9) "Let the waters under the heavens be gathered into one place." How, then, is "and the gathering of the waters He called 'seas'" to be understood? (It is to be understood as meaning) that the flavor of a fish brought up from Acco is not like that of one brought up from Tzor, and that the flavor of a fish brought up from Tzor is not like that of one brought up from Spain.