README FILE FOR "Sand dollar & sea urchin fertilization dataset"

Created by:
Dr. Michael T. Nishizakis  
Biology Department 
Carleton College, Northfield, MN 55057 
mikenish@carleton.edu 
Homepage: mikenish.com
Twitter: @mikenishizaki

I. Project description

Date - 2020 to 2021
Location - San Juan Island, WA, USA

Data are from experiments testing the effects of multiple stressors, temperature and pH on sperm swimming velocity and fertilization rates in two species of echinoderm, sand dollars and sea urchins.

The attached spreadsheet (Fertilization data.xlsx) includes the following data,

Column #    Desccription
1		Water temperatures for sand dollar experiment in Fig. 2
2		Fertilization rates for sand dollar experiment in Fig. 2
3		Sperm swimming velocities for sand dollar experiment in Fig. 2
4		Sperm motility for sand dollar experiment in Fig. 2
5		Water temperatures for sea urchin experiment in Fig. 3
6		Fertilization rates for sea urchin experiment in Fig. 3
7		Sperm swimming velocities for sea urchin experiment in Fig. 3
8		Sperm motility for sea urchin experiment in Fig. 3
9		Water temperatures for sand dollar multiple stressor experiment in Fig. 3
10		Water pH for sand dollar multiple stressor experiment in Fig. 3
11		Fertilization rates for sand dollar multiple stressor experiment in Fig. 3
12		Sperm swimming velocities for sand dollar multiple stressor experiment in Fig. 3
13		Sperm motility for sand dollar multiple stressor experiment in Fig. 3
14          2020 datetimes from Argyle Creek, WA, USA
15		2020 water temperatures from Argyle Creek, WA, USA
16		2021 datetimes from Argyle Creek, WA, USA
17		2021 water temperatures from Argyle Creek, WA, USA
18		2020 datetimes from Deadman Bay, WA, USA
19		2020 water temperatures from Deadman Bay, WA, USA
20		2021 datetimes from Deadman Bay, WA, USA
21		2021 water temperatures from Deadman Bay, WA, USA

Missing data in columns 14/15/20/21 due to sensor malfunction.