Various sites throughout Plum Island Estuary, see data file, HTL-PIE-SB2009survey for specific latitude and longitude information, includes lower reaches of Parker, Rowley and Ipswich Rivers.
Various sites throughout Plum Island Estuary, see data file, HTL-PIE-SB2009survey for specific latitude and longitude information, includes lower reaches of Parker, Rowley and Ipswich Rivers.