Appendix D (Table D1). Relative abundance of slow moving invertebrates (no. individuals/m2) at two study sites in Academy Bay, Santa Cruz Island, based on a survey in the high, mid and low-shore zones in June 2002. Mean ± 95% CI are shown for Sites 1 and 2; n = 10 quadrats per shore height.
Trophic status/Taxon |
High |
Mid |
Low |
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Site1 |
Site 2 |
Site1 |
Site 2 |
Site 1 |
Site 2 |
|
Herbivorous gastropods |
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Cerithium adustum |
0.2±0.4 |
0.2±0.4 |
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Cerithium stercusmuscarum |
0.2±0.4 |
0.2±0.4 |
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Chiton sulcatus, C. goodallii |
0.2±0.4 |
0.2±0.4 |
0.2±0.4 |
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Fissurella sp. |
0.2±0.4 |
0.2±0.4 |
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Hoffmannola lesliei |
0.8±1.6 |
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Nerita funiculate |
0.2±0.4 |
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Nodilittorina galapagiensis |
3.8±2.5 |
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Herbivorous echinoids |
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Echinometra vanbrunti |
0.2±0.4 |
0.2±0.4 |
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Eucidaris thouarsii |
0.2±0.4 |
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Carnivorous gastropods |
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Leucozonia tuberculata |
0.6±0.8 |
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Mitra tristis |
0.4±0.8 |
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Plicopurpura patula pansa |
0.4±0.5 |
0.6±1.2 |
0.8±1.1 |
3.0±3.3 |
0.4±0.5 |
|
Thais brevidentata |
1.8±1.1 |
0.4±0.5 |
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Vasula melonis |
1.6±1.5 |
0.6±0.5 |
8.2±0.7 |
3.2±2.4 |
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Thais planospira |
0.2±0.4 |
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Carnivorous crabs |
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Eriphides hispida |
0.8±0.7 |
0.2±0.4 |
0.6±0.8 |
0.8±0.7 |
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Geograpsus lividus |
0.2±0.4 |
0.2±0.4 |
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Mithrax nodosus |
0.2±0.4 |
0.2±0.4 |
0.2±0.4 |
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Ozius verreauxii |
0.2±0.4 |
0.2±0.4 |
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Omnivorous hermit crab |
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Calcinus explorator |
0.2±0.4 |
0.4±0.8 |
1.8±1.7 |
4.4±2.3 |
1.6±3.1 |
|
Particle feeding holothurians |
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Holothuria kefersteini |
0.2±0.4 |
0.6±1.2 |
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Holothuria portovallartensis |
0.2±0.4 |
0.6±0.8 |
0.6±0.8 |
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Holothuria theeli |
0.4±0.8 |
1.0±0.9 |
0.4±0.8 |
0.4±0.5 |
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