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IN PHOTOS: Blue Button marine colonies spotted on Mumbai’s Chowpatty shore

Updated On: 30 April, 2026 09:52 PM IST | Anushree Gaikwad

Blue Buttons, jellyfish-like marine colonies, washed ashore at Mumbai's Chowpatty as shifting sea currents and winds signal the approaching monsoon. (Pics/ Special Arrangement)

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Often mistaken for jellyfish, Blue Buttons are small, floating marine colonies commonly seen on Mumbai’s beaches during this time of the year due to changing sea currents and winds. PICS/ SPECIAL ARRANGEMENT
Often mistaken for jellyfish, Blue Buttons are small, floating marine colonies commonly seen on Mumbai’s beaches during this time of the year due to changing sea currents and winds. PICS/ SPECIAL ARRANGEMENT
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The Blue Button is a small, jellyfish-like organism that lives a free-floating life on the sea surface

The Blue Button is a small, jellyfish-like organism that lives a free-floating life on the sea surface

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This is not a single animal; it is a colony of several ‘zooids’

This is not a single animal; it is a colony of several ‘zooids’

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According to experts, Blue Buttons drift wherever winds and surface currents take them

According to experts, Blue Buttons drift wherever winds and surface currents take them

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When sea temperatures rise or cyclonic winds intensify, these floating organisms are pushed closer to the shore, which can be seen as a small but visible sign of changing ocean conditions

When sea temperatures rise or cyclonic winds intensify, these floating organisms are pushed closer to the shore, which can be seen as a small but visible sign of changing ocean conditions

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Despite their jellyfish-like appearance, Blue Buttons are colonies of hydroid polyps, not a single organism. They drift on the ocean’s surface, carried by winds and currents, and use stinging cells to catch plankton for food. Meanwhile, ahead of the approaching monsoon, large numbers of Blue Buttons were found washed ashore at Chowpatty in Mumbai last week

Despite their jellyfish-like appearance, Blue Buttons are colonies of hydroid polyps, not a single organism. They drift on the ocean’s surface, carried by winds and currents, and use stinging cells to catch plankton for food. Meanwhile, ahead of the approaching monsoon, large numbers of Blue Buttons were found washed ashore at Chowpatty in Mumbai last week

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