Table 1.1.
Clearance rates of selected benthic suspension feeders. Clearance rates computed using ash-free dry body weight (AFDW)
....
...
Group
Species
Habitat
Clearance rate
Maximum
Source(s)
(1 g-l h-1)
density
(No.m- 2
)
Ascidians
Ascidiella aspersa
Subtidal! epifauna
2.7
0.5
Hily (1991)
Ciona intestinalis
Subtidal! epifauna
7.1"
277
Randl0v and Riisgiird (1979);
Riisgiird et al. (1995)
Phallusia mammillata
Subtidal/ epifauna
2.1
0.8
Fiala-Medoni (1978); Hily (1991)
Styela clava
Subtidal! epifauna
7.0"
Riisgiird (1988)
Barnacles
Balanus crenatus
Encrusting
0.1
2000
Hily (1991)
Balanus perforatus
Encrusting
8.8ml!ind.
Crisp
and Southward (1961)
Bryozoans
General
Encrusting
OA2/zooid
Riisgiird
and Manriquez (1997)
Echinoderms
Ophiothrix fragilis
Subtidal! solitary
lOA
500
Hily (1991)
Mollusca
Bivalvia
Arctica islandica
Subtidal!infauna
5.6"
M0hlenberg and Riisgiird (1979)
Argopectin irradians
Subtidal! epifauna
8.0
Kirby-Smith (1972)
Cardium echinatum
Subtidal
4.2"
M0hlenberg and Riisgiird (1979)
Cerastoderma edule
Intertidal!infauna
1.5
Smaal et al. (1997)
7.9
2000
Verwey (1952;) Vahl (1973)
Chlamys hastata
Subtidal!infauna
8.6
5
Hily (1991)
Crassostrea gigas
Inter/subtidal beds
6.7
Walne (1972)
Crassostrea virginica
Inter/subtidal reefs
6.8"
4400
Dame (1975); Riisgiird (1988)
Geukensia demissa
Intertidal!epifauna
6.2"
2000
Bertness (1984); Riisgiird (1988)
~
Mercenaria mercenaria
Inter/subtidal
2.6"
Coughlan and Ansell (1964)
~
tl
beds/infauna
~
Modiolus modiolus
Subtidal! epifauna
6.0"
M0hlenberg and Riisgiird 1979)
S
(1)
::a.
~