Tytuł pozycji:
Remarks on the causes of the scarcity of benthos in Lake Lisunie
Three years of investigation of the benthos in Lake Lisunie revealed that its numbers are very small. Organic fertilization and other field experiments proved that the scantiness of benthos is due to the trophic situation. The considerable amount of organic substance in the bottom sediments is probably inaccessible to the benthos, despite the high concentration of oxygen at the bottom. It was found that percentage of predatory invertebrates was higher in worse environmental conditions accompanied by poorer condition of non-predatory larvae.
Pages 23-32 ; 24 cm
Strony 23-32 ; 24 cm
Bibliografia na stronie 31
Streszczenie w języku polskim
Bibliographical references (page 31)
Abstract in Polish