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The filtration activity of a serpulid polychaete population (Ficopomatus enigmaticus (Fauvel)) and its effects on water quality in a coastal marina
Davies, B.R.; Stuart, V.; de Villiers, M. (1989). The filtration activity of a serpulid polychaete population (Ficopomatus enigmaticus (Fauvel)) and its effects on water quality in a coastal marina. Est., Coast. and Shelf Sci. 29: 613-620
In: Estuarine, Coastal and Shelf Science. Academic Press: London; New York. ISSN 0272-7714, more
Peer reviewed article  

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Keywords
    Epizoites; Filter feeders; Filtration; Particle concentration; Pollution control; Water quality; Zoobenthos; Ficopomatus enigmaticus (Fauvel, 1923) [WoRMS]; Potamogeton pectinatus L. [WoRMS]; PSW, South Africa [Marine Regions]; Marine

Authors  Top 
  • Davies, B.R.
  • Stuart, V.
  • de Villiers, M.

Abstract
    An estimate of the total standing stock of Ficopomatus enigmaticus in the Marina de Gama, Zandvlei, near Cape Town was made, and some aspects of the animals' filter-feeding behaviour investigated. Working on values of 5 multiplied by 23 g dry mass of worm (excluding tube)/m² on the submerged aquatic plant (Potamogeton pectinatus), plus 84 multiplied by 9 g/m² on the canal walls, the total standing stock of the serpulid was estimated at 2 multiplied by 88 plus or minus 2 multiplied by 24 t (1 multiplied by 4 on Potamogeton); 1 multiplied by 48 t on canal walls). Clearance and ingestion rates both increased in direct proportion to food concentration. Using estimates of total standing stocks within the Marina, the F. Enigmaticus population clears 2 multiplied by 47 x 107 l of water/h and consumes 1 multiplied by 3 x 108 mg of particles/h in the 2-16 µm size range. Thus, the entire volume of the Marina will be filtered in 26 multiplied by 1 h through the activities of this animal alone, illustrating its importance for the maintenance of water quality within this moderately polluted system.

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