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| Title | Date of sighting | reporter | Image | Lat / Lng | Description | Type of organism | Other type |
|---|---|---|---|---|---|---|---|
| Moon jellies in S.… | mobile_jellywatcher | 
|
42.350 / -71.040 | Jellyfish | |||
| Girolata | Tsutan | 42.350 / 8.610 | Infestation in port |
Jellyfish | |||
| Cargese Infestation | Tsutan | 42.350 / 8.610 | Jellyfish | ||||
| Comb Jellies | mobile_jellywatcher | 
|
42.350 / -71.050 | Many comb jellies drifting in Fort Point Channel. |
Jellyfish | Comb Jellies | |
| Boston Bass River 1000s… | Jellywatcher | 
|
42.350 / -71.060 | Whoa there must be over 1000 if not more jellyfish here.< |
Jellyfish | ||
| moon jellies at harbor… | eustatic | 42.360 / -71.050 | flowing into the harbor between NEAQ and the historic Mar |
Jellyfish | |||
| Boston harbor… | Jellywatcher |
|
42.360 / -71.050 | Other | |||
| Jellies (some dead) | mobile_jellywatcher | 
|
42.360 / -71.050 | Jellyfish | |||
| Comb jellies | mobile_jellywatcher | 
|
42.370 / -71.060 | Other | Ctenophore | ||
| Jellies in Boston | Jellywatcher | 42.370 / -71.060 | I saw three jellies as I was walking across the bridge fo |
Jellyfish | |||
| Comb jellies | Jellywatcher | 
|
42.370 / -71.050 | A school of comb jellies along a commercial dock. |
Jellyfish | ||
| Washes up in Winthrop MA… | Jellywatcher |
|
42.370 / -70.970 | Dozens of clear/white jellies on shore, near surf, approx |
Jellyfish | ||
| Algae bloom | jackpayette | 
|
42.370 / -71.060 | Possibly microcystis, probably some type of blue green al |
Red Tide | Cyanobacteria | |
| Jellyfish | mobile_jellywatcher | 
|
42.370 / -71.050 | Jellyfish | |||
| Jellyfish - ctenophores… | mobile_jellywatcher | 
|
42.370 / -71.060 | Jellyfish | Ctenophore | ||
| Pas de méduses | mobile_jellywatcher | 42.380 / 9.530 | Clean sea | ||||
| Moon jelly | Jellywatcher | 
|
42.380 / -71.000 | Lots of moon jellies in Charlestown Marina |
Jellyfish | ||
| Purple Jelly Fish | Jellywatcher | 42.390 / 6.590 | We've seen them everyday for the past week. |
Jellyfish | |||
| Mer belle sans méduses… | mobile_jellywatcher | 
|
42.390 / 9.530 | Clean sea | |||
| Bloom of Thalia… | mobile_jellywatcher | 
|
42.420 / -70.910 | Other | Salps | ||
| Thalia democratica… | Alex Damian | 
|
42.420 / -70.910 | Other | Salps | ||
| Lion's Mane | eeyores |
|
42.430 / -70.870 | We came across these amorphous jellies off the coast of N |
Jellyfish | Lion's Mane (Cyanea capillata) | |
| Nahant Reservation Beach… | Jellywatcher | 
|
42.430 / -70.920 | 20 + rust colored jelly fish some 12” across scattered ov |
Jellyfish | ||
| San Pellegrino | Jellywatcher | 42.450 / 9.540 | big blue jellyfish |
Jellyfish | |||
| Thousands of Mnemiopsis… | Dwinchester | 42.460 / -70.940 | Thousands of individuals at the surface approaching high |
Other | Comb Jellies |