Why in the News
Large numbers of Porpita porpita, commonly called Blue Button, were recently found washed ashore at Girgaon Chowpatty. This phenomenon is often observed before the onset of the monsoon.
What is Blue Button
- A marine organism found floating on the sea surface
- Not a single organism but a colonial species
- Composed of multiple zooids working together as one unit
- Often mistaken for jellyfish
Key Characteristics
- Small, disc shaped body with tentacles
- Free floating organism
- Each zooid performs specific functions: Feeding, Digestion, and Movement
Comparison with Similar Species
- Blue Button (Porpita porpita)
- Harmless to humans
- Mild or no sting
- Portuguese Man o’ War
- Venomous
- Can cause painful stings
Why They Appear on Shores
- Linked to monsoon onset
- Caused by:
- Changes in sea temperature
- Shifts in ocean currents
- Strong winds pushing them ashore
| [2021] Which of the following have species that can establish symbiotic relationship with other organisms? 1. Cnidarians 2. Fungi 3. Protozoa Select the correct answer using the code given below. [A] 1 and 2 only [B] 2 and 3 only [C] 1 and 3 only [D] 1, 2 and 3 |
