Calcium Carbonate Production by Epibionts on Thalassia in Florida Bay
Calcium Carbonate Production by Epibionts on Thalassia in Florida Bay
复制标题
佛罗里达湾 Thalassia 上的 Epibiont 生产碳酸钙
DOI：
10.1306/212f89ef-2b24-11d7-8648000102c1865d
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发表时间：
1986
影响因子：
2
通讯作者：
R. Ginsburg
中科院分区：
文献类型：
--
作者：
John E. Nelsen;R. Ginsburg
摘要对佛罗里达湾东部现代石灰泥堆积区的两种红藻属和一种蛇虫属的石灰泥年产量进行了估算。红藻Melobesia membranacea和Fosliella farinosa以及螺旋虫Spirobis sp.作为附着生物生活在海龟藻（Thalassia testudinum）的叶子上，海龟藻是一种广泛的海草。通过量化1）海藻的寿命; 2）海藻的丰度;和3）每个叶片的表生体碳酸钙的平均量来估计由表生体产生的石灰泥。这一估计数还考虑到了现存量的空中变化和海吹藻生长率的季节性变化。估计表层生物碳酸盐的年产量为118 ± 44 g/m2/yr，比来自同一地区的绿色丝状菌Penicillus capitatus的估计产量高出六倍以上（Stockman et at. 1967年）。这导致了这样的结论，即在佛罗里达湾，海拉西亚上的附着生物产生了大量的石灰泥。这一结果接近牙买加发表的估计值180克/平方米/年（兰德，1970年），但明显低于巴巴多斯发表的估计值（帕特里昆，1972年）。龟草自白垩纪晚期（伊娃1980）就已经存在，而藻类很可能有更长的历史。因此，自白垩纪晚期以来，表生生物可能是重要的贡献者。
ABSTRACT Annual production of lime mud by two genera of red algae and one genus of serpulid worms was estimated for an area of modern lime mud accumulation in Eastern Florida Bay. The red algae Melobesia membranacea and Fosliella farinosa and the serpulid worm Spirobis sp. live as epibionts on the leaves of Thalassia testudinum, the extensive marine grass. The lime mud produced by the epibionts was estimated by quantifying 1) the life span of Thalassia; 2) the abundance of Thalassia; and 3) the average amount of epibiont calcium carbonate per blade. The estimate also accounts for both aerial variations in standing crop and seasonal variations in growth rate of Thalassia. The estimated annual production of epibiont carbonate is 118 ± 44 g/m2/yr, over six times more than the estimated production by the green alga Penicillus capitatus from the same area (Stockman et at. 1967). This leads to the conclusion that the epibionts on Thalassia produce significant amounts of lime mud in Florida Bay. This result is close to the published estimate for epibiont production in Jamaica of 180 g/m2/yr (Land 1970), but it is significantly less than a published estimate for epibiont production in Barbados (Patriquin 1972). Turtle grass has been around since the late Cretaceous (Eva 1980), and algae most likely has had a longer history. Therefore, epibionts may have been significant contributors since the late Cretaceous.