Donut, No Worms
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Category
- Anchored Life
- Subcategory
- Raions
- Entries in Raions
- 8
- Words
- 111
PDA entry
- Donut of worms (tentatively Raion donut) without visible worms.
- 1. Normal state
- Just as terrestrial corals contain photosynthetic partners called zooxanthella, the donut contains a population of predatory worms.
- 2. Disturbed state
- Just as terrestrial corals sometimes expel their partners when under stress, this donut raion has discharged or killed its population of worms. (Alternatively, they have left in search of a better host.) This may be a reproductive strategy, a defensive reaction to the worms turning on and feeding upon the sponge, or a response to environmental stress.
- Assessment: unclear how long the donut can survive without its primary food supply. Terrestrial corals survive only days to weeks after bleaching.
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