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| Title | Date of sighting | reporter | Image | Lat / Lng | Description | Type of organism | Other type |
|---|---|---|---|---|---|---|---|
| Chrysaora fuscescens in… | kraskoff | 
|
36.810 / -121.790 | Chrysaora fuscescens off boat ramp on north side of sloug |
Jellyfish | ||
| Physalia physalis | Medusas_Barcelona | 38.520 / -0.100 | Physalia physalis was seen at Benidorm so the beach was c |
Man o war | |||
| Physalia physalis | Medusas_Barcelona | 38.620 / -0.020 | Physalia physalis was seen at Altea, near "Illa de l |
Man o war | |||
| Large jellyfish off… | Jellywatcher | 34.410 / -119.830 | Some of the jellyfish looked to be 12" to 18" a |
Jellyfish | |||
| New masses of Gelatinous… | Medusas_Barcelona | 
|
42.320 / 3.320 | In the north of Catalunya again masses (millions) of salp |
Jellyfish | salps, ctnenophores also | |
| plastic galore | mucktopus | -8.830 / 115.080 | ramen packets, plastic bags and misc plastic trash about |
Plastic | |||
| Stomolophus in Camarones… | Cristina Cedeño | 
|
11.440 / -73.080 | Reported By: Pedro Torres, Universidad Jorge Tadeo Lozano |
Jellyfish | ||
| black sea nettles | michael | 
|
34.380 / -119.880 | several, large accumulations of 250 or more jellies, tigh |
Jellyfish | ||
| Chrysaora bloom at Santa… | alison | 34.400 / -119.850 | While out for a paddle-board, there were 100's of 8- |
Jellyfish | |||
| Chrysaora in Moss Landing… | kraskoff | 
|
36.810 / -121.780 | Dozens of Chrysaora colorata (Pelagia) and Chrysaora fusc |
Jellyfish | ||
| Physalia physalis in… | Medusas_Barcelona | 38.940 / 1.230 | 7 Physalia physalis were collected in Cala Tarida, Ibiza. |
Man o war | |||
| Masses of Gelatinous… | Medusas_Barcelona | 41.260 / 1.990 | Every year we have in April-May many salps, ctenophores a |
Other | salps, siphonophors | ||
| Physalia physalis | Medusas_Barcelona | 
|
37.850 / -0.760 | 4 indivuals separately beached in very fresh condition (O |
Man o war | ||
| Velella velella | Medusas_Barcelona | 
|
37.850 / -0.760 | More than 100 small (3 cm) indivials beached in serveral |
Velella | Velella | |
| Box Jellyfish Found in… | poghmahone | 36.600 / -121.890 | While diving near the wharf next to Del Monte Beach on Sa |
Box Jelly | |||
| Ctenos | mucktopus | -0.570 / 130.690 | only a few gelatinous organisms noticed in four day dives |
Other | Ctenophores | ||
| Pelagia noctiluca,… | Medusas_Barcelona | 37.850 / -0.760 | Physalia physalis and Velella velella stranded. |
Velella | Velella | ||
| Dolphins on the San… | henry | 37.850 / -122.370 | Saw three dolphins while sailing on the SF bay between An |
Vertebrate | |||
| Jellyfish at Pillar Point… | bobbreen | 43.960 / -76.120 | Two Chrysaora melanaster, 20 to 30cm, at "Maverick& |
Jellyfish | |||
| Gelatinous plankton in… | Medusas_Barcelona | 42.290 / 3.290 | We saw a bloom of all king of gelatinous plankton: salps, |
Jellyfish | and others | ||
| Gray whales North West of… | bobbreen | 37.510 / -122.530 | Two gray whales, mother and calf sighted about 1200 meter |
Vertebrate | |||
| Aurelia sp. missing form… | Shane Anderson | 7.160 / 134.380 | While snorkeling in Palau's jellyfish lake on April |
Clean sea | |||
| Moon Jellyfish in Loch… | markcra | 56.180 / -4.780 | Regularly seeing tiny moon jellyfish during dives in Loch |
Jellyfish | |||
| zero | mucktopus | 0.140 / 130.050 | nothing of note- 12-15 April 2010, four day dives and two |
Clean sea | |||
| Vv and Pn in Columbretes… | Medusas_Barcelona | 41.390 / 2.200 | A lot of Velella Velella and a few Pelagia Noctiluca. |
Jellyfish |