THE PROBLEM OF OIL POLLUTION O F THE SEA
285
Littorina neritoidos
L obtusata (JUV)
barnocle spot
Chthamalus stellatus
b l o w s balanoides
Nucella lapillus
Ocenebra erinacea
Actinia equina
Mmodonta Iineata
Gibbula umbilicalis
G. cineraria
Patella vulgota
P asppra
Mytilus edulis
Pomatoceros triqueter
Spirarbis corallinae
5 borealis
S rupestris
sponqeb
Lichina pygrnaea
Parphyro umbilicalis
k l v e t i a canaliculato
Fucus spiralis
Ascophyllurn nodosum
Fucus vesiculosus
F serratus
Halidrys siliquosa
Cladophora rupestris
Colpomenia pereqrina
Enteromrpha spp.
f
Ulva Iactuca
Codium fragile
Catenello repens
Coral1 ina officinal is
Laurencia pinnatifida
Gigortina stellata
Himanthalin elongata
Laminaria spp
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1
.
1
. . . . .
E m ' D 2 2 9 l m 0 * A
c _
C
.evesic.
FIG. 17. The distribution of common animals and plants on two shores in west Cornwdl,
resurveyed six months after '' Torrey Canyon " pollution and cleansing. Open
(white) histograms show the situation just after the disaster ; black histograms
superimposed on thess indicate survival. Many of the animals previously present
had been killed and washed away before the original survey, leaving no record.
Stippled histograms show settlement since the first snrvey-mainly barnacle spat
and green algae (from Nelson-Smith, 1068b).