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Phys Org

Phys Org

Freshwater jellyfish sightings rise in Canadian lakes

Phys Org
Summary
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87% Informative

Jellyfish are related to saltwater jellyfish ( Cnidaria ), only much smaller.

Jellyfish blooms typically last about a week or two , with blooms lasting just a few days .

The mature form of the Peach Blossom Jellyfish is only produced under the right environmental conditions.

Warm water temperatures appear to be the main trigger for the mature form, says author.

As more lakes are colonized over time, more reports of jellyfish sightings will occur.

Zooplankton are important prey for some fish species and especially juvenile fish.

But for the moment, the timing of species interactions will overlap more as the climate warms.

As the waters of northern temperate lakes remain warmer longer, we risk seeing freshwater jellyfish becoming more permanent members of the summer food web.