Observations on the Ecology of the Marine Nematode Monhystera filicaudata Allgen, 1929

Abstract

The marine nematode Monhystera filicaudata Allgen, 1929 was isolated from sediment of a Rhode Island estuary and maintained in the laboratory in culture. Information is presented which suggests that this nematode feeds primarily on detritus, bacteria, and dinoflagellates. Experiments using the elimination products of the bay scallop, Aequipecten irradians, as food are described. Maturation time of this nematode at 20-25 C required 24-35 days. The total disappearance of the remains of dead nematodes from sub-cultures is noted, and information is presented which suggests they are selectively fed upon by colorless euglenoids also present in the culture medium.