Ecological Archives E096-104-A3

Mary A. Rogalski. 2015. Tainted resurrection: metal pollution is linked with reduced hatching and high juvenile mortality in Daphnia egg banks. Ecology 96:11661173. http://dx.doi.org/10.1890/14-1663.1

Appendix C. Additional data regarding juvenile mortality and hatching rates from the various time periods from which Daphnia were successfully hatched from the four study lakes.

Table C1. Juvenile mortality and hatching rates from the various time periods from which Daphnia were successfully hatched from the four study lakes. For mortality rate, n represents the number of animals that hatched (including those that died or lived to maturity) from a particular time period. For hatching rate, n represents the number of viable embryos from which hatching was recorded. PC1 scores from analysis of Cd, Hg, Pb, and Zn are shown for each time period.

Lake

Approximate age

Mortality rate (n)

Hatching rate (n)

PC1

Alexander

2008

0.338 (80)

0.315 (54)

1.031

 

1992

0.167 (12)

0.462 (28)

0.958

 

1954

0.188 (16)

0.143 (14)

0.764

Black

2011

0.091 (11)

0.478 (23)

-0.157

 

1965

0.000 (2)

0.133 (15)

-0.112

 

1938

0.000 (11)

0.333 (33)

-0.134

 

1912

0.000 (2)

0.333 (3)

-0.568

Cedar

2011

0.083 (12)

0.278 (18)

-0.486

 

1992

0.250 (12)

0.550 (20)

-0.398

 

1982

0.000 (3)

0.130 (23)

-0.274

 

1969

0.500 (2)

0.065 (31)

-0.033

Roseland

2011

0.111 (18)

0.708 (24)

-0.010

 

2007

0.130 (23)

0.500 (46)

0.016

 

2001

0.125 (8)

0.321 (28)

0.024

 

1990

0.302 (43)

0.500 (20)

0.138

 

1975

0.000 (2)

0.273 (22)

0.165

 

1944

0.154 (13)

1.0 (2)

0.052


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