✍ Scribed by Walter Traunspurger
No coin nor oath required. For personal study only.
The autecology of Monhysterci pnludicolci (n = 3766 individuals), a dominant nematode of Lake Konigssee, was studied throughout the year 1986. The species comprised 2341% of all nematodes in the littoriprofundal and profundal. Mean yearly biomass was highest at 10 m depth (149 pg/lOO cm2, fresh weight). Abundance peaked twice a year in the littoral (winter and summer) and once in deeper regions (winter). The main reproductive period is the winter. Morphometric data (n = 658) revealed sexual dimorphism i n size, body shape and weight. There was considerable water depth and time dependent variation in sex ratios. The proportion of individuals in the top sediment layer increased with water depth. Juveniles and adults were partially segregated in the sediment column. M. pnlitdicola appears to undergo vertical migrations.
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