Night dives reveal hidden alliances between young fish and larval anemones

Night Dives Reveal Hidden Alliances

Since 2016, Rich Collins has been conducting night dives off the coast of Palm Beach, Florida, to capture blackwater photography.

These nighttime dives provide a unique perspective on the lives of sea creatures that usually remain hidden in deeper waters but come up to the surface after dark to feed.

Collins and his fellow divers have observed juvenile fish interacting with larval tube anemones in interesting ways, such as staying close to the anemones or even carrying them around.

These “symbiotic associations” are described in a recent paper published in the Journal of Fish Biology, for which Collins was a co-author.

Author's summary: Night dives reveal hidden fish alliances.

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Mongabay News Mongabay News — 2025-10-31

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