After some measurements during the day, me and my PI decided it was also important to get pre-dawn measurements. So I will be duplicating some of my previous sampling: I will measure temperature (thermometer), dissolved oxygen (handheld optode microsensor), pH (meter), and salinity (handheld refractometer). I will collect three water samples place them on ice in a dark cooler, and transport to the laboratory at UCLA. Within each site, I will sample intertidal macroalgae along a 30-m transect parallel to the waterline and 1 m downslope from the vascular vegetation. I will estimate macroalgal abundance by measuring percent cover. At five randomly chosen points along each transect, which will be reassigned each sampling time, a 0.25-m2 quadrat. When present, algae will be collected from a 530 cm2 area circumscribed by a plastic cylinder placed on the benthos in the center of each quadrat. Each sample will be placed in an individual Ziploc bag in a cooler, transported to the laboratory, and refrigerated.

Approved