Publikationsdatum:
2019-07-17
Beschreibung:
Succession was already studied over decades. The present thesis investigated the
succession on hard substrate at two different study sites within the fjord Comau,
Chile. Nine plates were installed at both sites (mouth of fjord and inner fjord) and
photographed over three years. Additionally the natural community was recorded and
a ground truthing was carried out to verify the analyzed species. Respectively at both
sites over 50 different species were detected. Abundance data decreased with only
one exception continuously, whereas the percentage cover increased. But the
communities on the recruitment plates still did not reach the community structure of
the natural environment. The present data indicates that for the hard bottom
community in the fjord Comau is best described by the TOLERANCE MODEL (Connell &
Slatyer, 1977). An important species of the natural community is the stony coral
Desmophyllum dianthus, which normally (outside the fjord) grows beneath 1000 m
water depth. The the still not reached diversity shows that the mature community is
still not reached on the installed recruitment plates.
Repository-Name:
EPIC Alfred Wegener Institut
Materialart:
Thesis
,
notRev
Format:
application/pdf
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