Publikationsdatum:
2019-07-16
Beschreibung:
A complete checklist of intertidal to shallow subtidal marine
green seaweeds (Chlorophyta) growing on the subtropical
island of Hainan (China) is presented here for the fi rst time.
It covers data from extensive recent (1990 – 2009) and historical
(1933 – 1935) collections, and additional published records
from various time periods. Data were analyzed by time period.
We postulate that environmental changes on Hainan Island
documented since the 1980s (e.g., degradation of coral reefs,
development of tourism and mariculture farms) are refl ected in
the green algal species complement and in the dominance or
absence of specifi c algal groups during different time periods.
In total, 105 green algal taxa were recorded, including 37 new
to Hainan Island, and 18 new records for China. There was a
clearly evident change in fl oristic composition between early
and recent collections. In the 1930s, there was a dominance of
Caulerpaceae, Codiaceae and Cladophoraceae. By 1990/1992,
the numbers of Ulvaceae had increased 1.6-fold and numbers
of Cladophoraceae 1.7-fold. Both families contain many
opportunistic species that prefer nutrient-enriched or degraded
environments. At the same time, species richness of Codiaceae,
Caulerpaceae and Udotaceae, families with complex thallus
structures, decreased considerably. The fl oristic differences
between the 1990/1992 and 2008/2009 collections were minor.
Repository-Name:
EPIC Alfred Wegener Institut
Materialart:
Article
,
isiRev
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