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 96:1166–1173. 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 |