Date	Sample_ID	Description	depth	d15N_NO3	d18O_NO3	d15N_NH4	d15N_POM	NO3	NH4	PO4	Silicate
unitless	unitless	unitless	m	per mil (0/00)	per mil (0/00)	per mil (0/00)	per mil (0/00)	micromoles per liter	micromoles per liter	micromoles per liter	micromoles per liter
2014/03/12	MP	Mill Pond Nauset Marsh Estuary MA station 11	1.0			NaN		0.9	1.4	0.1	7.6
2014/03/12	SP	Salt Pond Nauset Marsh Estuary MA station 21	1.0			NaN		0.9	2.8	0.3	9.1
2014/03/12	SP	Salt Pond Nauset Marsh Estuary MA station 21	5.0			11.9		1.4	16.0	3.0	6.8
2014/03/19	SP	Salt Pond Nauset Marsh Estuary MA station 21	3.0			NaN		0.4	5.7	0.5	8.4
2014/04/09	SP	Salt Pond Nauset Marsh Estuary MA station 21	3.0			NaN		<0.04	3.9	0.4	8.4
2014/04/23	MP	Mill Pond Nauset Marsh Estuary MA station 11	5.0			NaN	6.4	0.1	4.1	0.2	9.1
2014/04/23	SP	Salt Pond Nauset Marsh Estuary MA station 21	3.0			NaN		<0.04	1.8	0.3	11.2
2014/04/23	SP	Salt Pond Nauset Marsh Estuary MA station 21	5.0			NaN	5	<0.04	2.9	1.1	10.9
2014/05/02	MP	Mill Pond Nauset Marsh Estuary MA station 11	5.0			NaN	5.4	<0.04	4.6	0.3	11.1
2014/05/02	NPB 2B	Northport-Huntington Bay Complex NY station 2B	0.5			12.7	7.6	1.3	5.2	1.0	20.7
2014/05/02	SP	Salt Pond Nauset Marsh Estuary MA station 21	5.0			1.4	5.5	<0.04	3.6	0.4	10.6
2014/05/07	MP	Mill Pond Nauset Marsh Estuary MA station 11	5.0			NaN	5.5	<0.04	3.3	0.4	13.3
2014/05/07	NPB 2B	Northport-Huntington Bay Complex NY station 2B	0.5	7.45	4.22	17.9	7.7	2.3	2.8	0.6	27.3
2014/05/07	SP	Salt Pond Nauset Marsh Estuary MA station 21	5.0			5.2	5.3	<0.04	13.7	2.1	13.5
2014/05/14	MP	Mill Pond Nauset Marsh Estuary MA station 11	3.0			NaN	5.8	0.5	5.1	0.5	19.0
2014/05/14	NPB 2B	Northport-Huntington Bay Complex NY station 2B	0.5			14.0	7.9	1.2	1.7	0.5	20.0
2014/05/14	SP	Salt Pond Nauset Marsh Estuary MA station 21	3.0			NaN	5.9	<0.04	5.7	0.4	15.3
2014/05/19	MP	Mill Pond Nauset Marsh Estuary MA station 11	3.0			NaN		<0.04	4.6	0.2	17.2
2014/05/19	SP	Salt Pond Nauset Marsh Estuary MA station 21	3.0			NaN		<0.04	2.5	0.3	13.4
2014/05/20	NPB 2B	Northport-Huntington Bay Complex NY station 2B	0.5	7.31	4.01	14.8	8	1.7	2.8	0.4	36.5
2014/05/21	GOM st12	Gulf of Maine station 12	1.0	7.27	5.74	NaN	4.9	6.7	0.3	0.6	8.7
2014/05/21	GOM st15	Gulf of Maine station 15	1.0			NaN	4.4	0.3	0.2	0.3	3.7
2014/05/28	MP	Mill Pond Nauset Marsh Estuary MA station 11	3.0			NaN	6.8	<0.04	3.1	less than DL	0.6
2014/05/28	SP	Salt Pond Nauset Marsh Estuary MA station 21	3.0			7.7	5.6	<0.04	6.9	0.9	11.3
2014/06/12	SP	Salt Pond Nauset Marsh Estuary MA station 21	1.0			NaN		<0.04	6.8	0.3	8.0
2014/06/12	SP	Salt Pond Nauset Marsh Estuary MA station 21	3.0			NaN		<0.04	6.0	0.2	2.2
2014/06/12	SP	Salt Pond Nauset Marsh Estuary MA station 21	5.0			NaN		<0.04	18.9	3.8	8.9
2014/06/16	GOM st20	Gulf of Maine station 20	1.0			NaN	8	0.1	0.2	0.0	1.6
2014/06/16	GOM st20	Gulf of Maine station 20	90.0	4.14	3.41	NaN	less than DL	11.4	0.2	0.7	7.2
2014/06/16	GOM st21	Gulf of Maine station 21	1.0			NaN	7.5	0.2	0.3	0.0	2.2
2015/03/23	NPB 2B	Northport-Huntington Bay Complex NY station 2B	0.5	6.82	3.32	NaN		34.6	0.6	0.3	20.7
2015/04/02	MP	Mill Pond Nauset Marsh Estuary MA station 11	5.0			NaN	6.8	<0.04	0.3	0.2	1.3
2015/04/02	SP	Salt Pond Nauset Marsh Estuary MA station 21	1.0	less than DL	less than DL	NaN	7.7	3.5	0.7	0.3	13.5
2015/04/15	SP	Salt Pond Nauset Marsh Estuary MA station 21	3.0			NaN		0.7	10.0	2.7	11.7
2015/04/29	SP	Salt Pond Nauset Marsh Estuary MA station 21	5.0			NaN		<0.04	10.0	4.3	10.6
2015/05/05	MP	Mill Pond Nauset Marsh Estuary MA station 11	3.0			NaN	7.1	0.1	1.8	0.5	14.9
2015/05/05	SP	Salt Pond Nauset Marsh Estuary MA station 21	3.0			11.4	5.2	0.1	5.0	1.8	13.0
2015/05/13	MP	Mill Pond Nauset Marsh Estuary MA station 11	2.0			NaN	6.2	<0.04	0.9	0.3	19.5
2015/05/13	SP	Salt Pond Nauset Marsh Estuary MA station 21	3.0			NaN	7	<0.04	0.9	0.9	16.4
2015/05/15	MP	Mill Pond Nauset Marsh Estuary MA station 11	2.0			NaN	7.2	<0.04	2.5	0.9	20.7
2015/05/18	MP	Mill Pond Nauset Marsh Estuary MA station 11	2.0			NaN	6.7	<0.04	1.1	0.3	18.1
2015/05/18	SP	Salt Pond Nauset Marsh Estuary MA station 21	3.0			NaN	7	<0.04	1.5	1.1	13.7
2015/05/20	NPB 2B	Northport-Huntington Bay Complex NY station 2B	0.5	6.33	3.49	15.9	7.3	19.8	5.7	1.7	38.7
2015/05/21	NPB 2B	Northport-Huntington Bay Complex NY station 2B	0.5	6.82	4.35	NaN	9.9	20.9	1.2	1.5	41.8
2015/05/26	NPB 2B	Northport-Huntington Bay Complex NY station 2B	0.5			NaN	7.8	1.8	2.2	0.9	39.5
2015/05/27	SP	Salt Pond Nauset Marsh Estuary MA station 21	3.0			NaN		1.7	2.2	1.3	20.9
2015/06/03	SP	Salt Pond Nauset Marsh Estuary MA station 21	3.0			NaN		<0.04	2.5	1.8	21.1
2015/06/17	GOM st 1	Gulf of Maine station 1	1.0	5.51	5.11	NaN	3.5	5.3	0.1	0.6	4.8
2015/06/17	GOM st 1	Gulf of Maine station 1	50.0	4.86	3.92	NaN	2.1	6.3	1.0	0.7	5.7
2015/06/18	GOM st 5	Gulf of Maine station 5	1.0	6.83	6.38	NaN	4.4	4.8	0.6	0.5	5.7
2015/06/18	GOM st 8	Gulf of Maine station 8	1.0			NaN	4	0.4	0.2	0.1	0.1
2015/06/18	GOM st 8	Gulf of Maine station 8	50.0	4.86	3.92	NaN	3.3	5.5	1.1	0.6	6.0