The filtration activity of a serpulid polychaete population (Ficopomatus enigmaticus (Fauvel) and its effects on water quality in a coastal marina

Comparative study of water-processing in two ciliary filter-feeding polychaetes (Ditrupa arietina and Euchone papillosa) from two different habitats

“…The general trend for E. papillosa (Table 1), but not D. arietina (Table 2), to become satiated after a second algal addition to the experimental aquarium supports this interpretation. Use of high particle concentrations in earlier clearance experiments may explain the generally low values found for filter-feeding polychaetes by other workers (Dales 1957, 1961, Buhr 1976, Klöckner 1978, Shumway et al 1988, Davies et al 1989). For example, in a study of Lanice conchilega, Buhr (1976) used a Dunaliella marina algal concentration of 40 000 cells ml…”

Reef formation versus solitariness in two New Zealand serpulids does not involve cryptic species

“…Serpulid aggregations provide hard substrate and refugia for a wide variety of organisms and enhance biodiversity in the temperate waters where they occur (Haines & Maurer 1980, Moore et al 1998, Haanes & Gulliksen 2011, as well as locally affecting water flow and sedimentation (Schwindt et al 2004). Serpulid aggregations affect the local environment in other ways: they clean the water by filtering out particles as the worms feed (Davies et al 1989); they also remove calcium carbonate from seawater for tube production, acting as a carbon sink (Medernach et al 2000). Gregarious serpulids can thus be considered 'ecosystem engineers' (sensu Jones et al 1994); under standing the causes of gregariousness is important for protection of their fragile and disappearing (see e.g.…”

Some aspects of water filtering activity of filter-feeders

“…87.5 days Newell (1988) Marina da Gama 0.025 · 10 6 m 3 -1.1 days Davies et al (1989) Kertinge Nor, Denmark 11 000 · 10 6 m 3…”