1.   So they then examined lake sediments for different algae species, to provide a record of phosphorus levels over time.

2.   The newly-recognized algae species also was found in rivers in North Carolina and Maryland.

3.   Some bacteria and viruses attack certain algae species but more research is needed before a biological remedy might be available.

4.   The algae species at that time was Gyrodinium aureolum, which was also attacking Hong Kong for the first time.

5.   Water samples taken from the three beaches showed the dominant algae species to be Cochlodinium polykrikodes.