College rocks practical

what tests were used for algae cover?

welch and posthoc games howell

where were significant differences in cover found?

high-low and high-mid

where was cover lowest?

high shore

why might the low shore have more algae cover?

more water/submersion allows more algae species to tolerate conditions

which species were most prevalent on the low shore?

bladderwrack (fucus vesiculosus) and knotted wrack (ascophyllum nodosum)

which species were most prevalent on the high shore?

channel wrack (pelvetia cananiculata) and spiral wrack (fucus spiralis)

which species were most prevalent on the mid shore?

bladderwrack (fucus vesiculosus) and knotted wrack (ascophyllum nodosum) and encrusting red algae (lithophyllum incrustans)

what tests were used for animal diversity?

one way anova and posthoc tukey hsd

where were significant differences in diversity found?

low-high and mid-high

where was diversity lowest?

high shore

was the simpson’s index generally high or low for all shore levels?

high

what types of species were found on the high shore?

desiccation tolerant species like barnacles and limpets

what types of species were found on the mid and low shores?

less tolerant species like starfish and anemones