Streptosyllis Verrilli (Moore, 1907), New Combination, Life Cycle, Population Dynamics and Production from a Salt Marsh in Southern New England
Abstract:Streptosyllis verrilli is a small syllid commonly found in tidal sandy sediments in Great Sippewissett salt marsh. This species has a monotelic reproductive strategy. S. verrilli has been identified in the past as Syllides verrilli but the presence of enlarged acicula on some anterior para podia places the species in the genus Streptosyllis. The population of Streptosyllis verrilli has an annual life-cycle. Reproduction takes place in May–July by the survivors of the last year's recruitment. Recruitment takes place from June to August; then only juveniles from the new recruitment can be observed. Spring values of biomass and density maxima during the year are a function of the last year population size and the winter mortality due to the weather. The mean annual biomass was 0.10 g dry weight m−2, mean annual production 0.33 g dry weight m−2 and the production:biomass ratio 3.27 during the 2-years studied.
Document Type: Research Article
Publication date: November 1, 1992
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