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| Title | Date of sighting | reporter | Image | Lat / Lng | Description | Type of organism | Other type |
|---|---|---|---|---|---|---|---|
| Aequorea… | themom51 | 
|
43.650 / -124.210 | There were hundreds of small Aequorea victoria along the |
Jellyfish | Aequorea victoria | |
| Aequorea,… | Nomeus | 
|
52.040 / 1.460 | One Aequorea stranded on mudflats - no much left of it (p |
Other | hydrozoan, ctenophore | |
| Aequorea,… | jellyhunter | 36.630 / -121.910 | Aequorea 11-99, Mitrocoma 100+, Pleurobrachia 100+, Phace |
Jellyfish | |||
| After the… | Jellywatcher | 
|
50.700 / -3.070 | Portuguese man of wars spotted on Seaton Beach, Devon |
Man o war | ||
| Afternoon… | Jellywatcher | 
|
33.590 / -79.010 | Found in the surf at 2pm on Friday. No movement. |
Jellyfish | ||
| Agalma okeni… | Jellywatcher | 7.330 / -81.790 | Found this and a few other siphonophore species on isla C |
Other | Siphonophore | ||
| Agalma Okeni (… | Jellywatcher | 
|
26.840 / 34.000 | In a depth of 8m, it was alive and swimming, contracting |
Other | Agalma Okeni | |
| Aglantha… | Leo | 48.540 / -123.010 | Numerous Aglantha digitale hydromedusae seen over several |
Jellyfish | |||
| Agua falto | mobile_jellywatcher | 37.720 / -25.470 | Jellyfish | ||||
| Águas vivas | mobile_jellywatcher | 38.750 / -27.100 | Jellyfish | ||||
| Águas vivas | jpaes | 38.650 / -27.220 | Jellyfish | ||||
| Águas vivas | mobile_jellywatcher | 
|
36.960 / -25.140 | Jellyfish | Água viva | ||
| Águas vivas | Mikelcsp | 37.740 / -25.670 | LIsjs |
Jellyfish | Jellyfish | ||
| Aguas vivas… | mobile_jellywatcher | 
|
38.680 / -27.330 | Jellyfish | |||
| Aguavivas | HappyMarina | 
|
-38.010 / -57.540 | Jellyfish | |||
| Ai aperçu un… | mobile_jellywatcher | 43.690 / 7.340 | Au large de Paloma Beach |
Jellyfish | |||
| Alabama… | Jellywatcher | 30.250 / -88.080 | 6 medium to large Drymonema larsoni and 24 large Aurelia |
Jellyfish | |||
| Alatina alata… | Jellywatcher | 
|
10.340 / 123.530 | Looks like Alatina alata over coral reef |
Box Jelly | ||
| Alatina alata… | cnatsphysalia | 18.460 / -67.160 | It stung a person in the leg, but no severe Irukandji syn |
Box Jelly | |||
| Alatina alata… | Tesserazoa | 
|
12.160 / -68.280 | Alatina alata forms reproductive aggregations 8-10 days a |
Box Jelly | ||
| Alatina alata… | cnatsphysalia | 17.880 / -66.520 | Saw it while SCUBA Diving |
Box Jelly | |||
| Algae bloom | jackpayette | 
|
42.370 / -71.060 | Possibly microcystis, probably some type of blue green al |
Red Tide | Cyanobacteria | |
| Algal bloom?… | Jellywatcher | 27.220 / -82.520 | Dead fish line the shore and float in the sea; at night w |
Red Tide | |||
| alive and dead… | avandaea | 
|
27.630 / -97.200 | Alive and dead Portuguese man o wars washed up on shore a |
Man o war | ||
| alive at North… | avandaea | 
|
27.640 / -97.190 | Man o war |