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| Title | Date of sighting | reporter | Image | Lat / Lng | Description | Type of organism | Other type |
|---|---|---|---|---|---|---|---|
| Anchor River beach (… | chayatamal | 
|
59.780 / -151.870 | Jellyfish | |||
| Anapolis dock | Android | 47.540 / -122.620 | Squid | ||||
| Anadolou Kavagi Sighting… | Jellywatcher | 41.170 / 29.090 | Species appears to have been Aurelia aurita. |
Jellyfish | |||
| Anacapa Island Salp | Jellywatcher | 34.020 / -119.390 | Seen off Anacapa Island |
Jellyfish | |||
| Among all the others,… | mobile_jellywatcher | 
|
30.260 / -87.600 | Jellyfish | |||
| Ammareurs beach | Shazmatt | 
|
49.500 / -2.540 | Lots of jellyfish washed up and in the water. |
Jellyfish | Cyanea lamarckii | |
| Amelia Island, Florida… | mobile_jellywatcher | 
|
30.550 / -81.440 | Jellyfish | |||
| Amazing bioluminescence… | beroe | 48.540 / -123.020 | Biolum higher than a Bioluminescent Bay! |
Red Tide | Bioluminescence | ||
| Alykes,Chalkida,Greece… | Jellywatcher | 38.500 / 23.530 | The sightings starts end of July! |
Jellyfish | |||
| Always quite a few | mobile_jellywatcher | 42.830 / 9.310 | I suspect jellies are attracted by some sewage waters sin |
Jellyfish | Pellagia | ||
| Alve with Jellyfish | openhouse | 36.850 / -121.810 | Lots of small clear jellies and nudibranchs (purple and y |
Jellyfish | |||
| Along Platja di Migjorn… | Jellywatcher | 38.700 / 1.450 | Sightings of brown/purple jellyfish along beach shoreline |
Jellyfish | |||
| Alnmouth beach… | Jellywatcher | 53.930 / -2.470 | Purple and lions mane jellyfish |
Jellyfish | |||
| Allatina Grandis Oman… | Jellywatcher | 23.550 / 58.660 | Saw large 1 ft long (body of jellyfish - tentacles longer |
Jellyfish | |||
| All the bay nettles | Jellywatcher | 
|
36.380 / -75.830 | Too many jellyfish to swim |
Jellyfish | ||
| All day. Worse later in… | mobile_jellywatcher | 
|
30.260 / -87.630 | Moon and bioluminescent jellies keeping swimmers out of w |
Jellyfish | Moon Jelly | |
| All along Pescadero… | Jellywatcher | 
|
37.260 / -122.410 | Velella, dead ones and just beached ones all along the sh |
Velella | ||
| alive at North Padre… | avandaea | 
|
27.640 / -97.190 | Man o war | |||
| alive and dead… | avandaea | 
|
27.630 / -97.200 | Alive and dead Portuguese man o wars washed up on shore a |
Man o war | ||
| Algal bloom? | Jellywatcher | 27.220 / -82.520 | Dead fish line the shore and float in the sea; at night w |
Red Tide | |||
| Algae bloom | jackpayette | 
|
42.370 / -71.060 | Possibly microcystis, probably some type of blue green al |
Red Tide | Cyanobacteria | |
| Alatina alata, Caja de… | cnatsphysalia | 17.880 / -66.520 | Saw it while SCUBA Diving |
Box Jelly | |||
| Alatina alata… | Tesserazoa | 
|
12.160 / -68.280 | Alatina alata forms reproductive aggregations 8-10 days a |
Box Jelly | ||
| Alatina alata at Crash… | cnatsphysalia | 18.460 / -67.160 | It stung a person in the leg, but no severe Irukandji syn |
Box Jelly | |||
| Alatina alata | Jellywatcher | 
|
10.340 / 123.530 | Looks like Alatina alata over coral reef |
Box Jelly |