What term describes the dense clusters formed by aggregating adult Zebra Mussels?
Answer
Druses
Zebra mussels exhibit a strong tendency to aggregate in large groups when settling and growing, especially when suitable firm substrate is available. These dense colonies are specifically referred to as druses. The sheer density these colonies can reach is staggering, with reports noting populations that can exceed tens of thousands per square yard, and under ideal conditions, densities can peak as high as 1 million individuals per square meter. This aggregation behavior contributes significantly to their environmental impact.
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