Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The grey bar represents freshwater (<0.55 psu) and the black bars represent brackish habitat (≥0.55 psu). Sample sizes for each salinity bin from lowest to highest salinity = 682, 193, 186, 112, 105, and 40. Differing letters denote statistically significant differences. Error bars are SEs.
