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BOULDER BAY OUTFALL
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Click the photograph for a enlarged view |
Biological Environment Shallow water areas: Lithothamnion
(encrusting Corallinaceae
algae), turfing red algae, brown algae; sponges and
other invertebrates; as the depth of water increased, the area occupied by
algae decreased while the space covered by suspension feeders increased. turfing red algae; sponges (more erect species); uncolonised space. Rock shelf (inside the bay): large
brown algae (Phyllospora comosa and Ecklonia
radiata); Lithothamnion;
coralline algae; grazing molluscs; sea urchins (Centrostephanus
rodgersii); patches of encrusting sponges and a compound ascidian. Intertidal: limpets (Cellana tramoserica) and top shells (Austrocochlea obtusa – probably = A. constricta). At the extreme low tide level there was a short stretch of rock shelf covered by a brown algal film. Hormosira banksii, Corallina and cunjevoi (Pyura stolonifera). Upper Intertidal: periwinkles (Nodilittorina unifasciata and N. pyramidalis); grazing gastropods (Cellana tramoserica, Siphonaria sp, Nerita atramentosa and Austrocochlea obtusa); surf barnacle (Catomerus polymerus); coralline algae and brown algae (Phyllospora comosa); crevices and rock pools inhabited by an assemblage of algae and invertebrates typical for this region (see Dakin 1952, Laurie, Montgomery and Pettit 1977a) |
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Cunjevoi |
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Kelp |
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Sea urchin |
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Cunjevoi |
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Boulder Bay |
(Boul_6) Last updated May 2000 |
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