ENVIRONMENTAL CONTROL OF THE ANNUAL ERECT PHASE OF NEMALION HELMINTHOIDES (RHODOPHYTA) IN THE FIELD

In temperate areas, lack of nutrients during summer, particularly N, is the main limiting factor of macroalgal growth.However, Nemalion helminthoides (Velley) Batters in northern Spain is conspicuous in the field during this time (from mid-May to late-July).Therefore, we assumed that its nutrient requirements are low enough to be sustained by trans

Monitoring the ratio of two correlated normal random variables is often used in many industrial manufacturing processes.At the same time, measurement errors inevitably exist in most processes, which have different effects on the performance of various charting schemes.This paper comprehensively analyses the impacts of measurement errors on the dete