ABSTRACT
C. fragile is a model study system for many fields from algal physiology, endosymbiosis, and heavy metal accumulation to invasion ecology, algal genetics, and natural products. The alga is consumed by humans, used as invertebrate food by the mariculture industry, is a pest of natural and cultivated shellfish beds, is a source of bioactive compounds, and is a potential indicator of heavy metal pollution. Yet, this review demonstrates that ecological information on C. fragile is patchy in coverage and quality, particularly for native, non-weedy populations. There are six specific subject areas that warrant future attention.
