2.2. Uncertainties concerning nature–human interactions
The relationships among nutrients, blooms of Florida red tide, public
responses, and consequent reductions in impacts to public health and
human welfare are complex and uncertain. There are two main questions
that remain largely unanswered: do human activities (including
non-point source pollution) actually cause K. brevis blooms; and can
human responses, through the implementation of public policies or
other actions, control, prevent or mitigate those blooms?
While there is a basic understanding that marine algae need nutrients
in order to bloom, there are significant uncertainties about
the nutrient fluxes, their sources, the threshold levels, their chemical
compositions, and the extent to which they can be taken up by algae,
as well as oceanographic and environmental factors affecting bloom
formation and transport. Vargo et al. (2008), for example, describes
more than two dozen theories and ideas that have been put forward
in attempts to explain the reasons for Florida red tide occurrences.
2.2. Uncertainties concerning nature–human interactions
The relationships among nutrients, blooms of Florida red tide, public
responses, and consequent reductions in impacts to public health and
human welfare are complex and uncertain. There are two main questions
that remain largely unanswered: do human activities (including
non-point source pollution) actually cause K. brevis blooms; and can
human responses, through the implementation of public policies or
other actions, control, prevent or mitigate those blooms?
While there is a basic understanding that marine algae need nutrients
in order to bloom, there are significant uncertainties about
the nutrient fluxes, their sources, the threshold levels, their chemical
compositions, and the extent to which they can be taken up by algae,
as well as oceanographic and environmental factors affecting bloom
formation and transport. Vargo et al. (2008), for example, describes
more than two dozen theories and ideas that have been put forward
in attempts to explain the reasons for Florida red tide occurrences.
การแปล กรุณารอสักครู่..
