Collected reprints: Abstract 3410

Collected reprints

Abstract

Vranken, G.; Thielemans, L.K.; Heip, C.; Vandycke, M. (1981). Aspects of the life-cycle of Monhystera parelegantula (Nematoda; Monhysteridae). Mar. Ecol. Prog. Ser. 6: 67-72

Monhystera parelegantula (De Coninck,1943) was collected from the sediment of the Sluice-dock, a euhaline-polyhaline lagoon near the harbour of Ostend (Belgium). The species was cultivated in large numbers on a bacto-agar medium with bacterial growth. Embryonic growth was studied at 30 C and 30 promille S. Maximum embryonic length-growth occurs at the vermiform stage. Post-embryonic length-growth, studied at 25 C and 30 promille S, is a linear function of time and may be expressed as l = 160.46 + 29.55(t-to), where to = time at the beginning of development; t and l = time (d) and length (m). At 25 C and 30 promille S, average embryonic development time and generation time are 4 and 9 d respectively. Reproduction under culture conditions is parthenogenetic, but males were sometimes found. Reproduction, feeding and duration of the life cycle are discussed.


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