engleski

Nematode feeding-types at the eulittoral of Lake Sakadaš (Nature Park Kopački rit, Croatia)

The total of 45 nematode species was found at the investigated sites of the eulittoral of Lake Sakadaš during 1998: 12 deposit feeders (bacterial feeders), six epistrate feeders (algal feeders), eight chewers (predators/omnivorous), and 19 suction feeders (plant feeders/omnivorous). Chewers were the major group of nematofauna at the eulittoral of Lake Sakadaš - they comprised 68.28% of total nematofauna at submerged site A, 70.13% at site B (at the water and land point of contact), and 54.16% at emerge site C. The chewers had the highest relative abundance recorded: Brevitobrilus stefanskii, Mononchus aquaticus and Tobrilus gracilis at sites A and B, and B. stefanskii, M. aquaticus and Paramononchus sp. at site C. Suction-feeders were the next important nematofauna group: 19.98% at site A, 23.60% at site B, and 36.97% at site C, followed by deposit-feeders (5.98-11.78), whereas, epistrate-feeders had the lowest abundance (<2%). The irregularities of water level and the quantity of food available had the major influence on the changes in the distribution of nematode feeding-types.

eulittoral; sediment; freshwater nematodes; feeding-types

nije evidentirano