7

Fall and Winter Movements of Black and Mallard Ducks

Year:
1960
Language:
english
File:
PDF, 1003 KB
english, 1960
9

An evaluation of certain indices of eutrophy and maturity in lakes

Year:
1972
Language:
english
File:
PDF, 928 KB
english, 1972
11

Prey selection by Chaoborus punctipennis under laboratory conditions

Year:
1980
Language:
english
File:
PDF, 173 KB
english, 1980
34

Effects of water hardness and humic acid on zinc toxicity to Daphnia magna Straus

Year:
1988
Language:
english
File:
PDF, 804 KB
english, 1988
35

The toxicity and bioaccumulation of cadmium and copper as affected by humic acid

Year:
1984
Language:
english
File:
PDF, 393 KB
english, 1984
39

An evaluation of some myths concerning the culture of daphnids

Year:
1989
Language:
english
File:
PDF, 331 KB
english, 1989