Ecological Archives E086-125-A1

**Susan L. Williams and Megan N. Dethier. 2005. High and dry: variation in net photosynthesis of the intertidal seaweed Fucus gardneri. Ecology 86:2373–2379.**

Appendix A. A map of study sites on San Juan Island, Washington, and tables describing physical conditions.

FIG. A1. A map of sites around San Juan Island, Washington, USA. Abbreviations are: CCN (Colins Cove North), CPN (Cattle Point North), CCS (Cattle Point South), DH (Davison Head), FHL (Friday Harbor Laboratories), HH (Hannah Heights), LK (Lime Kiln), PC (Point Caution), PHE (Pump House East), PHW (Pump House West), RTN (Rueben Tarte North), RTS (rueben Tarte South), SJC (San Juna County), and WIL (Willows Point).

TABLE A1. Study site latitude and longitude in degrees and decimal.minutes acquired with a Global Positioning System using World Geodetic System 84 datum.

Site	North	West
CCN	48^o 32.906	123^o 00.393
CCS	48^o 32.910	123^o 00.397
CPN	48^o 27.120	122^o 57.714
CPS	48^o 27.120	122^o 57.714
DH	48^o 37.335	123^o 09.158
HH	48^o 29.477	123^o 06.773
LK	48^o 31.001	123^o 09.149
PC	48^o 35.779	122^o 41.462
PHE	48^o 32.757	123^o 00.478
PHW	48^o 32.767	123^o 00.498
RTN	48^o 36.782	123^o 05.917
RTS	48^o 36.752	123^o 05.858
SJC	48^o 32.589	123^o 09.683
WIL	48^o 32.800	123^o 00.448

TABLE A2. Descriptions of physical characteristics of study sites on San Juan Island, Washington. Tidal height survyed relative to predicted Mean Lower Low Water. Aspect refers to magnetic compass heading.

Site	Tidal height (m above MLLW)		Wave exposure	Aspect	Slope (degrees)	Morning sun
	High	Mid
CCN	1.6	0.9	low	NNW	22	low
CCS	1.6	1.1	fairly low	E	15	high
CPN	1.6	0.8	fairly high	NE	15	moderate
CPS	1.7	1.0	fairly high	SW	30	moderate
DH	1.4	0.7	fairly low	WSW	30	moderate
HH	1.7	0.9	fairly high	ENE	15	moderate
LK	1.8	1.1	fairly high	NE	20	low
PC	1.4	0.6	moderate	NNW	20	low
PHE	1.3	0.6	low	SSW	25	moderate
PHW	1.5	0.7	low	S	20	moderate
RTN	1.6	1.1	moderate	E	30	high
RTS	1.5	0.7	moderate	SE	30	high
SJC	1.8	1.1	moderate	NW	25	low
WIL	1.1	0.4	fairly low	SE	25	high

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