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Shore crab

Carcinus maenas

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Zoological classification

Domain:Eukaryota
Kingdom:Animalia
Phylum:Arthropoda
Class:Malacostraca
Order:Decapoda
Family:Carcinidae
Genus:Carcinus
Species:maenas
Name:Shore crab


Description

No description

Observation data

Observation data updated daily from

iNaturalist.org

The observations are "research-grade" and must therefore meet the following criteria:

  1. At least two independent users must confirm the observation.
  2. No additional users must reject the observation.
  3. The observation must not be marked as "unidentifiable."
  4. The observation must have georeferenced coordinates.
  5. The date and time of the observation must be correct.

Observations by distribution and threat status

Total number of observations: 1177

native

endemic

introduced

threatened

Bar graph:
native 52%, endemic 0%, introduced 48%, threatened 0%

Observation (ID 327225404):
more details at iNaturalist.org

Carcinus maenas

on Tuesday, 2nd December 2025 at 7:14 PM
in Port of Le Havre, Le Havre, France

Open in Google Maps
(49.4891559178,0.1184660196)
(Time zone: +01:00 Europe/Paris)
by pascal_girard

This species is native to this region.
Observation (ID 327225393):
more details at iNaturalist.org

Carcinus maenas

on Tuesday, 2nd December 2025 at 4:35 PM
in Port of Le Havre, Le Havre, France

Open in Google Maps
(49.4891559178,0.1184660196)
(Time zone: +01:00 Europe/Paris)
by pascal_girard

This species is native to this region.
Observation (ID 327225380):
more details at iNaturalist.org

Carcinus maenas

on Tuesday, 2nd December 2025 at 1:56 PM
in Port of Le Havre, Le Havre, France

Open in Google Maps
(49.4891559178,0.1184660196)
(Time zone: +01:00 Europe/Paris)
by pascal_girard

This species is native to this region.
Observation (ID 327225279):
more details at iNaturalist.org

Carcinus maenas

on Tuesday, 2nd December 2025 at 5:56 AM
in Port of Le Havre, Le Havre, France

Open in Google Maps
(49.4891559178,0.1184660196)
(Time zone: +01:00 Europe/Paris)
by pascal_girard

This species is native to this region.
Observation (ID 327225289):
more details at iNaturalist.org

Carcinus maenas

on Tuesday, 2nd December 2025 at 5:56 AM
in Port of Le Havre, Le Havre, France

Open in Google Maps
(49.4891559178,0.1184660196)
(Time zone: +01:00 Europe/Paris)
by pascal_girard

This species is native to this region.
Observation (ID 329113895):
more details at iNaturalist.org

Carcinus maenas

on Monday, 1st December 2025 at 3:56 PM
in Buzzards Bay, Wareham, MA, US

Open in Google Maps
(41.7410369112,-70.6269284621)
(Time zone: -05:00 America/New_York)
by erin_donlan26

This species was introduced to this region.
Observation (ID 329113719):
more details at iNaturalist.org

Carcinus maenas

on Monday, 1st December 2025 at 3:55 PM
in Massachusetts Maritime Academy, Buzzards Bay, MA, US

Open in Google Maps
(41.7408950581,-70.6268041023)
(Time zone: -05:00 America/New_York)
by erin_donlan26

This species was introduced to this region.
Observation (ID 329096004):
more details at iNaturalist.org

Carcinus maenas

on Monday, 1st December 2025 at 11:13 AM
in Crescent Beach, Lunenburg, NS, CA

Open in Google Maps
(44.2303297504,-64.3909259001)
(Time zone: -04:00 America/Halifax)
by morgandeveaux

This species was introduced to this region.
Observation (ID 328949465):
more details at iNaturalist.org

Carcinus maenas

on Sunday, 30th November 2025 at 7:39 PM
in Veerse Meer, Zeeland, NL

Open in Google Maps
(51.5475991786,3.81109273)
(Time zone: +01:00 Europe/Amsterdam)
by daniellegeschiere

This species is native to this region.
Observation (ID 328904721):
more details at iNaturalist.org

Carcinus maenas

on Sunday, 30th November 2025 at 11:09 AM
in Haverfordwest, Wales, GB

Open in Google Maps
(51.784425,-5.1037083333)
(Time zone: +00:00 Europe/London)
by alexander4615

This species is native to this region.
Observation (ID 328897141):
more details at iNaturalist.org

Carcinus maenas

on Sunday, 30th November 2025 at 9:02 AM
in Trevone, Padstow PL28 8QY, UK

Open in Google Maps
(50.54405,-4.9827416667)
(Time zone: +00:00 Europe/London)
by mdayglos

This species is native to this region.
Observation (ID 328891114):
more details at iNaturalist.org

Carcinus maenas

on Sunday, 30th November 2025 at 8:59 AM
in Anglesey Area of Outstanding Natural Beauty, Anglesey Business Centre, Bryn Cefni Isle of Anglesey County Council, Llangefni LL77 7XA, UK

Open in Google Maps
(53.352895,-4.234935)
(Time zone: +00:00 Europe/London)
by worthyfool

This species is native to this region.
Observation (ID 328997227):
more details at iNaturalist.org

Carcinus maenas

on Sunday, 30th November 2025 at 8:06 AM
in Middle St, Stockton Springs, ME, US

Open in Google Maps
(44.4831981091,-68.8557998153)
(Time zone: -05:00 America/New_York)
by mills225

This species was introduced to this region.
Observation (ID 329066768):
more details at iNaturalist.org

Carcinus maenas

on Saturday, 29th November 2025 at 12:10 PM
in Nassau County, NY, USA

Open in Google Maps
(40.5797133333,-73.5734816667)
(Time zone: -05:00 America/New_York)
by hannahoc

This species was introduced to this region.
Observation (ID 328876317):
more details at iNaturalist.org

Carcinus maenas

on Saturday, 29th November 2025 at 10:39 AM
in Sooke, BC, Canada

Open in Google Maps
(48.3730642248,-123.7221462652)
(Time zone: -08:00 America/Vancouver)
by dytiskid

This species was introduced to this region.
Observation (ID 328914294):
more details at iNaturalist.org

Carcinus maenas

on Saturday, 29th November 2025 at 10:33 AM
in Green Bay Rd, Lunenburg, NS, CA

Open in Google Maps
(44.2184951775,-64.4353831525)
(Time zone: -04:00 America/Halifax)
by morgandeveaux

This species was introduced to this region.
Observation (ID 328779581):
more details at iNaturalist.org

Carcinus maenas

on Saturday, 29th November 2025 at 8:25 AM
in Bodega Harbor, Bodega Bay, CA, US

Open in Google Maps
(38.330525,-123.0576555)
(Time zone: -08:00 America/Los_Angeles)
by apt40

This species was introduced to this region.
Observation (ID 328764680):
more details at iNaturalist.org

Carcinus maenas

on Friday, 28th November 2025 at 1:54 PM
in Moss, Norway

Open in Google Maps
(59.424665049,10.6214087152)
(Time zone: +01:00 Europe/Oslo)
by mikat78

This species is native to this region.
Observation (ID 328751056):
more details at iNaturalist.org

Carcinus maenas

on Friday, 28th November 2025 at 11:39 AM
in 22120 Hillion, France

Open in Google Maps
(48.5073421,-2.6171116)
(Time zone: +01:00 Europe/Paris)
by lesanimauxdu22

This species is native to this region.
Observation (ID 328610722):
more details at iNaturalist.org

Carcinus maenas

on Friday, 28th November 2025 at 10:40 AM
in Peddar's Way and Norfolk Coast Path, Hunstanton, England, GB

Open in Google Maps
(52.9422536183,0.4867005936)
(Time zone: +00:00 Europe/London)
by kirstyhayward19

This species is native to this region.
Observation (ID 328506295):
more details at iNaturalist.org

Carcinus maenas

on Thursday, 27th November 2025 at 4:24 PM
in IE

Open in Google Maps
(52.1243638333,-10.262455)
(Time zone: +00:00 Europe/Dublin)
by davidsexton94

This species is native to this region.
Observation (ID 328475186):
more details at iNaturalist.org

Carcinus maenas

on Thursday, 27th November 2025 at 1:08 PM
in 29900 Concarneau, Frankrijk

Open in Google Maps
(47.8691611111,-3.91925)
(Time zone: +01:00 Europe/Paris)
by dor_snake

This species is native to this region.
Observation (ID 328475209):
more details at iNaturalist.org

Carcinus maenas

on Thursday, 27th November 2025 at 12:58 PM
in 29900 Concarneau, Frankrijk

Open in Google Maps
(47.8690333333,-3.9186083333)
(Time zone: +01:00 Europe/Paris)
by dor_snake

This species is native to this region.
Observation (ID 328475334):
more details at iNaturalist.org

Carcinus maenas

on Thursday, 27th November 2025 at 12:39 PM
in Concarneau, Frankrijk

Open in Google Maps
(47.869025,-3.9182944444)
(Time zone: +01:00 Europe/Paris)
by dor_snake

This species is native to this region.
Observation (ID 328382347):
more details at iNaturalist.org

Carcinus maenas

on Wednesday, 26th November 2025 at 10:52 AM
in Necanicum Dr, Seaside, OR, US

Open in Google Maps
(46.0012571919,-123.9230465548)
(Time zone: -08:00 America/Los_Angeles)
by dandelion_soup

This species was introduced to this region.
Observation (ID 328168819):
more details at iNaturalist.org

Carcinus maenas

on Tuesday, 25th November 2025 at 6:31 PM
in Channel Hwy, Gordon, TAS, AU

Open in Google Maps
(-43.2648576596,147.2398513583)
(Time zone: +10:00 Australia/Hobart)
by casstrain

This species was introduced to this region.
Observation (ID 328271815):
more details at iNaturalist.org

Carcinus maenas

on Tuesday, 25th November 2025 at 4:02 PM
in Ipswich, MA, USA

Open in Google Maps
(42.6681069741,-70.7390926691)
(Time zone: -05:00 America/New_York)
by paul__seaman

This species was introduced to this region.
Observation (ID 328260302):
more details at iNaturalist.org

Carcinus maenas

on Tuesday, 25th November 2025 at 2:24 PM
in Point Molate Beach, Richmond, CA, US

Open in Google Maps
(37.9412083333,-122.4105616667)
(Time zone: -08:00 America/Los_Angeles)
by ktnoon

This species was introduced to this region.
Observation (ID 328026168):
more details at iNaturalist.org

Carcinus maenas

on Monday, 24th November 2025 at 9:16 AM
in Huon Valley, AU-TS, AU

Open in Google Maps
(-43.2153222907,147.0461907455)
(Time zone: +10:00 Australia/Hobart)
by richardhughes1973

This species was introduced to this region.
Observation (ID 327828271):
more details at iNaturalist.org

Carcinus maenas

on Sunday, 23rd November 2025 at 10:34 AM
in Anglesey Area of Outstanding Natural Beauty, Anglesey Business Centre, Bryn Cefni Isle of Anglesey County Council, Llangefni LL77 7XA, UK

Open in Google Maps
(53.3055074044,-4.2081287876)
(Time zone: +00:00 Europe/London)
by worthyfool

This species is native to this region.
Observation (ID 327746513):
more details at iNaturalist.org

Carcinus maenas

on Saturday, 22nd November 2025 at 9:08 PM
in Western Port, Balnarring Beach, AU

Open in Google Maps
(-38.39307,145.1254888333)
(Time zone: +10:00 Australia/Melbourne)
by jmar24

This species was introduced to this region.
Observation (ID 328181801):
more details at iNaturalist.org

Carcinus maenas

on Saturday, 22nd November 2025 at 7:00 PM
in Lysekil, Sverige

Open in Google Maps
(58.2676974568,11.4343946202)
(Time zone: +01:00 Europe/Stockholm)
by bergylta

This species is native to this region.
Observation (ID 327676168):
more details at iNaturalist.org

Carcinus maenas

on Saturday, 22nd November 2025 at 4:00 PM
in Lough Swilly, IE

Open in Google Maps
(55.1147888333,-7.5293116667)
(Time zone: +00:00 Europe/Dublin)
by macbird

This species is native to this region.
Observation (ID 327655462):
more details at iNaturalist.org

Carcinus maenas

on Saturday, 22nd November 2025 at 2:35 PM
in Stanley TAS 7331, Australia

Open in Google Maps
(-40.7947921667,145.2622680556)
(Time zone: +10:00 Australia/Hobart)
by cockatoo89

This species was introduced to this region.
Observation (ID 327776656):
more details at iNaturalist.org

Carcinus maenas

on Saturday, 22nd November 2025 at 1:20 PM
in Lunenburg, CA-NS, CA

Open in Google Maps
(44.5977635142,-64.0609600927)
(Time zone: -04:00 America/Halifax)
by elliofthenorth

This species was introduced to this region.
Observation (ID 327654139):
more details at iNaturalist.org

Carcinus maenas

on Saturday, 22nd November 2025 at 1:05 PM
in Kilve, Bridgwater TA5 1EG, UK

Open in Google Maps
(51.1932116667,-3.22835)
(Time zone: +00:00 Europe/London)
by lisa34252

This species is native to this region.
Observation (ID 328042530):
more details at iNaturalist.org

Carcinus maenas

on Saturday, 22nd November 2025 at 1:01 PM
in Kilve, Bridgwater TA5 1EG, UK

Open in Google Maps
(51.1925111552,-3.2272295281)
(Time zone: +00:00 Europe/London)
by athenaallen24

This species is native to this region.
Observation (ID 327644170):
more details at iNaturalist.org

Carcinus maenas

on Saturday, 22nd November 2025 at 11:12 AM
in Bude-Stratton EX23, UK

Open in Google Maps
(50.8368958533,-4.5566126145)
(Time zone: +00:00 Europe/London)
by greenie33

This species is native to this region.
Observation (ID 327686324):
more details at iNaturalist.org

Carcinus maenas

on Saturday, 22nd November 2025 at 10:43 AM
in Crooklets Beach, S W Coast Path, Bude EX23 8NE, UK

Open in Google Maps
(50.8359216247,-4.5563697119)
(Time zone: +00:00 Europe/London)
by hamlet_ben

This species is native to this region.
Observation (ID 328604569):
more details at iNaturalist.org

Carcinus maenas

on Saturday, 22nd November 2025 at 10:39 AM
in South West Coast Path, Bude, England, GB

Open in Google Maps
(50.8346893134,-4.5556527191)
(Time zone: +00:00 Europe/London)
by claire2minute

This species is native to this region.
Observation (ID 327864632):
more details at iNaturalist.org

Carcinus maenas

on Friday, 21st November 2025 at 8:59 PM
in Cap-Pelé, NB E4N 1S5, Canada

Open in Google Maps
(46.230417117,-64.2972644046)
(Time zone: -04:00 America/Moncton)
by tomcod

This species was introduced to this region.
Observation (ID 327596858):
more details at iNaturalist.org

Carcinus maenas

on Friday, 21st November 2025 at 6:45 PM
in Argentina

Open in Google Maps
(-41.431601,-65.052993)
(Time zone: -03:00 America/Argentina/Salta)
by ivanfedericoebrecht

This species was introduced to this region.
Observation (ID 327597041):
more details at iNaturalist.org

Carcinus maenas

on Friday, 21st November 2025 at 5:41 PM
in Argentina

Open in Google Maps
(-41.4279119722,-65.0461839722)
(Time zone: -03:00 America/Argentina/Salta)
by ivanfedericoebrecht

This species was introduced to this region.
Observation (ID 327597322):
more details at iNaturalist.org

Carcinus maenas

on Friday, 21st November 2025 at 5:19 PM
in Argentina

Open in Google Maps
(-41.42895,-65.041273)
(Time zone: -03:00 America/Argentina/Salta)
by ivanfedericoebrecht

This species was introduced to this region.
Observation (ID 327597470):
more details at iNaturalist.org

Carcinus maenas

on Friday, 21st November 2025 at 4:36 PM
in Argentina

Open in Google Maps
(-41.427061,-65.0452259722)
(Time zone: -03:00 America/Argentina/Salta)
by ivanfedericoebrecht

This species was introduced to this region.
Observation (ID 329001659):
more details at iNaturalist.org

Carcinus maenas

on Friday, 21st November 2025 at 4:06 PM
in Canada

Open in Google Maps
(44.4104089,-64.3413292997)
(Time zone: -04:00 America/Halifax)
by leahdef

This species was introduced to this region.
Observation (ID 327472973):
more details at iNaturalist.org

Carcinus maenas

on Friday, 21st November 2025 at 2:52 PM
in Hallett Cove Beach

Open in Google Maps
(-35.0777408132,138.4960646555)
(Time zone: +09:30 Australia/Adelaide)
by hayleymugford

This species was introduced to this region.
Observation (ID 327477432):
more details at iNaturalist.org

Carcinus maenas

on Friday, 21st November 2025 at 2:49 PM
in Holdfast Bay, Kingston Park, SA, AU

Open in Google Maps
(-35.0384334833,138.514156734)
(Time zone: +09:30 Australia/Adelaide)
by thomaswpturner

This species was introduced to this region.
Observation (ID 327472808):
more details at iNaturalist.org

Carcinus maenas

on Friday, 21st November 2025 at 2:47 PM
in Hallett Cove SA 5158, Australia

Open in Google Maps
(-35.0777408132,138.4960646555)
(Time zone: +09:30 Australia/Adelaide)
by hayleymugford

This species was introduced to this region.
Observation (ID 327498951):
more details at iNaturalist.org

Carcinus maenas

on Friday, 21st November 2025 at 1:04 PM
in Muxía, La Coruña, ES

Open in Google Maps
(43.01129445,-9.265245)
(Time zone: +01:00 Europe/Madrid)
by florian_karner

This species is native to this region.
Observation (ID 327599811):
more details at iNaturalist.org

Carcinus maenas

on Friday, 21st November 2025 at 12:29 PM
in San Antonio, Río Negro, Argentina

Open in Google Maps
(-41.48185,-65.01354)
(Time zone: -03:00 America/Argentina/Salta)
by ivanfedericoebrecht

This species was introduced to this region.
Observation (ID 327472451):
more details at iNaturalist.org

Carcinus maenas

on Friday, 21st November 2025 at 11:26 AM
in Hallett Cove SA 5158, Australia

Open in Google Maps
(-35.0777408132,138.4960646555)
(Time zone: +09:30 Australia/Adelaide)
by hayleymugford

This species was introduced to this region.
Observation (ID 327472285):
more details at iNaturalist.org

Carcinus maenas

on Friday, 21st November 2025 at 11:24 AM
in Hallett Cove SA 5158, Australia

Open in Google Maps
(-35.0777408132,138.4960646555)
(Time zone: +09:30 Australia/Adelaide)
by hayleymugford

This species was introduced to this region.
Observation (ID 327472150):
more details at iNaturalist.org

Carcinus maenas

on Friday, 21st November 2025 at 11:23 AM
in Hallett Cove SA 5158, Australia

Open in Google Maps
(-35.0777408132,138.4960646555)
(Time zone: +09:30 Australia/Adelaide)
by hayleymugford

This species was introduced to this region.
Observation (ID 327459197):
more details at iNaturalist.org

Carcinus maenas

on Friday, 21st November 2025 at 11:21 AM
in Hallett Cove, SA, AU

Open in Google Maps
(-35.08085,138.495255)
(Time zone: +09:30 Australia/Adelaide)
by charlottehockin

This species was introduced to this region.
Observation (ID 327516159):
more details at iNaturalist.org

Carcinus maenas

on Friday, 21st November 2025 at 10:02 AM
in Marshfield, MA, US

Open in Google Maps
(42.1559677778,-70.7616485755)
(Time zone: -05:00 America/New_York)
by haydenstebbins

This species was introduced to this region.
Observation (ID 327533010):
more details at iNaturalist.org

Carcinus maenas

on Friday, 21st November 2025 at 9:33 AM
in China Camp State Park, San Rafael, CA, US

Open in Google Maps
(38.0009416667,-122.4615033333)
(Time zone: -08:00 America/Los_Angeles)
by yungcarlotta

This species was introduced to this region.
Observation (ID 327403608):
more details at iNaturalist.org

Carcinus maenas

on Thursday, 20th November 2025 at 3:29 PM
in Great Darkgate Street Top, Aberystwyth SY23 1DE, UK

Open in Google Maps
(52.4157224103,-4.0879638121)
(Time zone: +00:00 Europe/London)
by bongostongo

This species is native to this region.
Observation (ID 327229870):
more details at iNaturalist.org

Carcinus maenas

on Wednesday, 19th November 2025 at 3:20 PM
in Australia

Open in Google Maps
(-42.9720027778,147.5160527778)
(Time zone: +10:00 Australia/Hobart)
by nierinna

This species was introduced to this region.
Observation (ID 328146777):
more details at iNaturalist.org

Carcinus maenas

on Wednesday, 19th November 2025 at 11:29 AM
in Capital, BC, CA

Open in Google Maps
(48.5727188173,-124.4077135472)
(Time zone: -08:00 America/Vancouver)
by anneblh

This species was introduced to this region.
Observation (ID 327083440):
more details at iNaturalist.org

Carcinus maenas

on Tuesday, 18th November 2025 at 6:04 PM
in Bass Coast Bal, AU-VI, AU

Open in Google Maps
(-38.6550533333,145.6872416667)
(Time zone: +10:00 Australia/Melbourne)
by mickeymason

This species was introduced to this region.
Observation (ID 327143509):
more details at iNaturalist.org

Carcinus maenas

on Tuesday, 18th November 2025 at 2:57 PM
in Kings

Open in Google Maps
(45.1105194092,-64.2386322021)
(Time zone: -04:00 America/Halifax)
by jennbaici

This species was introduced to this region.
Observation (ID 327280685):
more details at iNaturalist.org

Carcinus maenas

on Monday, 17th November 2025 at 8:27 PM
in Marennes, 17320 Marennes-Hiers-Brouage, France

Open in Google Maps
(45.815676191,-1.136557376)
(Time zone: +01:00 Europe/Paris)
by frederic-andre

This species is native to this region.
Observation (ID 327280682):
more details at iNaturalist.org

Carcinus maenas

on Monday, 17th November 2025 at 8:05 PM
in Marennes, 17320 Marennes-Hiers-Brouage, France

Open in Google Maps
(45.815676191,-1.136557376)
(Time zone: +01:00 Europe/Paris)
by frederic-andre

This species is native to this region.
Observation (ID 327280677):
more details at iNaturalist.org

Carcinus maenas

on Monday, 17th November 2025 at 8:04 PM
in Marennes, 17320 Marennes-Hiers-Brouage, France

Open in Google Maps
(45.815676191,-1.136557376)
(Time zone: +01:00 Europe/Paris)
by frederic-andre

This species is native to this region.
Observation (ID 327280678):
more details at iNaturalist.org

Carcinus maenas

on Monday, 17th November 2025 at 8:04 PM
in Marennes, 17320 Marennes-Hiers-Brouage, France

Open in Google Maps
(45.815676191,-1.136557376)
(Time zone: +01:00 Europe/Paris)
by frederic-andre

This species is native to this region.
Observation (ID 326960631):
more details at iNaturalist.org

Carcinus maenas

on Monday, 17th November 2025 at 8:03 PM
in Spit Beach

Open in Google Maps
(50.3406692622,-4.7047363437)
(Time zone: +00:00 Europe/London)
by maveriiiiiiick

This species is native to this region.
Observation (ID 326955026):
more details at iNaturalist.org

Carcinus maenas

on Monday, 17th November 2025 at 7:14 PM
in Spit Beach

Open in Google Maps
(50.3406692622,-4.7047363437)
(Time zone: +00:00 Europe/London)
by maveriiiiiiick

This species is native to this region.
Observation (ID 326954350):
more details at iNaturalist.org

Carcinus maenas

on Monday, 17th November 2025 at 7:10 PM
in Spit Beach

Open in Google Maps
(50.3406692622,-4.7047363437)
(Time zone: +00:00 Europe/London)
by maveriiiiiiick

This species is native to this region.
Observation (ID 326998260):
more details at iNaturalist.org

Carcinus maenas

on Monday, 17th November 2025 at 7:08 PM
in Menai Suspension Bridge, Menai Bridge LL59 5HG, UK

Open in Google Maps
(53.2211763742,-4.1644694656)
(Time zone: +00:00 Europe/London)
by worthyfool

This species is native to this region.
Observation (ID 326994361):
more details at iNaturalist.org

Carcinus maenas

on Monday, 17th November 2025 at 6:41 PM
in Depot, Bangor LL57, UK

Open in Google Maps
(53.233570419,-4.1188511252)
(Time zone: +00:00 Europe/London)
by worthyfool

This species is native to this region.
Observation (ID 327198084):
more details at iNaturalist.org

Carcinus maenas

on Monday, 17th November 2025 at 3:37 PM
in Alberni-Clayoquot, BC, CA

Open in Google Maps
(48.8215466667,-125.1378555)
(Time zone: -08:00 America/Vancouver)
by igooutsidesometimes

This species was introduced to this region.
Observation (ID 328081047):
more details at iNaturalist.org

Carcinus maenas

on Monday, 17th November 2025 at 3:02 PM
in Arcata Bay, Arcata, CA, US

Open in Google Maps
(40.854518128,-124.0973651665)
(Time zone: -08:00 America/Los_Angeles)
by jillian_a

This species was introduced to this region.
Observation (ID 327432964):
more details at iNaturalist.org

Carcinus maenas

on Monday, 17th November 2025 at 11:13 AM
in 50530 Saint-Jean-le-Thomas, France

Open in Google Maps
(48.7291598473,-1.5161457392)
(Time zone: +01:00 Europe/Paris)
by frederic-andre

This species is native to this region.
Observation (ID 326835545):
more details at iNaturalist.org

Carcinus maenas

on Sunday, 16th November 2025 at 3:30 PM
in Portaferry Road, Ards and North Down, Northern Ireland, GB

Open in Google Maps
(54.5584866667,-5.62338)
(Time zone: +00:00 Europe/London)
by anna_e_k

This species is native to this region.
Observation (ID 326833920):
more details at iNaturalist.org

Carcinus maenas

on Sunday, 16th November 2025 at 1:00 PM
in France

Open in Google Maps
(49.319146,-0.021988)
(Time zone: +01:00 Europe/Paris)
by elimadmartigan

This species is native to this region.
Observation (ID 326824286):
more details at iNaturalist.org

Carcinus maenas

on Sunday, 16th November 2025 at 12:35 PM
in 14640 Saint-Vaast-en-Auge, France

Open in Google Maps
(49.3208839722,-0.015583)
(Time zone: +01:00 Europe/Paris)
by elimadmartigan

This species is native to this region.
Observation (ID 326823004):
more details at iNaturalist.org

Carcinus maenas

on Sunday, 16th November 2025 at 12:34 PM
in 14640 Saint-Vaast-en-Auge, France

Open in Google Maps
(49.3209305692,-0.015427731)
(Time zone: +01:00 Europe/Paris)
by elimadmartigan

This species is native to this region.
Observation (ID 326790617):
more details at iNaturalist.org

Carcinus maenas

on Sunday, 16th November 2025 at 12:30 PM
in 987H+8R, Doonfore, Ardmeen, Co. Sligo, Ireland

Open in Google Maps
(54.3383359058,-8.6043391004)
(Time zone: +00:00 Europe/Dublin)
by seabirder

This species is native to this region.
Observation (ID 327527727):
more details at iNaturalist.org

Carcinus maenas

on Sunday, 16th November 2025 at 11:15 AM
in Le Port, Le Havre, France

Open in Google Maps
(49.4892720257,0.1188337487)
(Time zone: +01:00 Europe/Paris)
by frederic-andre

This species is native to this region.
Observation (ID 326769636):
more details at iNaturalist.org

Carcinus maenas

on Sunday, 16th November 2025 at 11:07 AM
in Palhais, Portugal

Open in Google Maps
(38.6100755934,-9.0488398075)
(Time zone: +00:00 Europe/Lisbon)
by cristinapeixinhos

This species is native to this region.
Observation (ID 327023909):
more details at iNaturalist.org

Carcinus maenas

on Sunday, 16th November 2025 at 10:59 AM
in Port of Le Havre, Le Havre, France

Open in Google Maps
(49.4891559178,0.1184660196)
(Time zone: +01:00 Europe/Paris)
by pascal_girard

This species is native to this region.
Observation (ID 327527726):
more details at iNaturalist.org

Carcinus maenas

on Sunday, 16th November 2025 at 10:51 AM
in Le Port, Le Havre, France

Open in Google Maps
(49.4892720257,0.1188337487)
(Time zone: +01:00 Europe/Paris)
by frederic-andre

This species is native to this region.
Observation (ID 327507397):
more details at iNaturalist.org

Carcinus maenas

on Sunday, 16th November 2025 at 3:23 AM
in Pointe-du-Chêne, NB E4P 4V7, Canada

Open in Google Maps
(46.2403407613,-64.5291366801)
(Time zone: -04:00 America/Moncton)
by tomcod

This species was introduced to this region.
Observation (ID 326777311):
more details at iNaturalist.org

Carcinus maenas

on Sunday, 16th November 2025 at 2:26 AM
in Holyhead, Wales, GB

Open in Google Maps
(53.321655,-4.6503916667)
(Time zone: +00:00 Europe/London)
by sarahnauman

This species is native to this region.
Observation (ID 327507449):
more details at iNaturalist.org

Carcinus maenas

on Sunday, 16th November 2025 at 2:25 AM
in Pointe-du-Chêne, NB E4P 4V7, Canada

Open in Google Maps
(46.2405070252,-64.5296265185)
(Time zone: -04:00 America/Moncton)
by tomcod

This species was introduced to this region.
Observation (ID 326608530):
more details at iNaturalist.org

Carcinus maenas

on Saturday, 15th November 2025 at 11:06 PM
in Bunurong Ward, Cape Paterson, VIC, AU

Open in Google Maps
(-38.678955,145.606445)
(Time zone: +10:00 Australia/Melbourne)
by omarvela

This species was introduced to this region.
Observation (ID 326608556):
more details at iNaturalist.org

Carcinus maenas

on Saturday, 15th November 2025 at 11:01 PM
in Bunurong Ward, Cape Paterson, VIC, AU

Open in Google Maps
(-38.6788166667,145.606675)
(Time zone: +10:00 Australia/Melbourne)
by omarvela

This species was introduced to this region.
Observation (ID 327735621):
more details at iNaturalist.org

Carcinus maenas

on Saturday, 15th November 2025 at 8:15 PM
in Hazelhurst St, Halifax, NS, CA

Open in Google Maps
(44.6653462871,-63.5596452574)
(Time zone: -04:00 America/Halifax)
by bewarethebug

This species was introduced to this region.
Observation (ID 326602248):
more details at iNaturalist.org

Carcinus maenas

on Saturday, 15th November 2025 at 7:43 PM
in Tea Tree Gully - Central, South Australia, Australia

Open in Google Maps
(-34.803745,138.541456)
(Time zone: +09:30 Australia/Adelaide)
by bradlp10

This species was introduced to this region.
Observation (ID 328282744):
more details at iNaturalist.org

Carcinus maenas

on Saturday, 15th November 2025 at 7:33 PM
in Point Pleasant Beach, NJ 08742, USA

Open in Google Maps
(40.1005589997,-74.0488088997)
(Time zone: -05:00 America/New_York)
by fishing_429

This species was introduced to this region.
Observation (ID 326630418):
more details at iNaturalist.org

Carcinus maenas

on Saturday, 15th November 2025 at 4:44 PM
in France

Open in Google Maps
(50.91236598,1.68768046)
(Time zone: +01:00 Europe/Paris)
by flovh

This species is native to this region.
Observation (ID 327386477):
more details at iNaturalist.org

Carcinus maenas

on Saturday, 15th November 2025 at 3:36 PM
in Le Port, Le Havre, France

Open in Google Maps
(49.4892001724,0.1183217057)
(Time zone: +01:00 Europe/Paris)
by frederic-andre

This species is native to this region.
Observation (ID 327386473):
more details at iNaturalist.org

Carcinus maenas

on Saturday, 15th November 2025 at 2:47 PM
in Le Port, Le Havre, France

Open in Google Maps
(49.4892001724,0.1183217057)
(Time zone: +01:00 Europe/Paris)
by frederic-andre

This species is native to this region.
Observation (ID 326632959):
more details at iNaturalist.org

Carcinus maenas

on Saturday, 15th November 2025 at 2:45 PM
in Royal Albion Hotel, Broadstairs CT10, UK

Open in Google Maps
(51.366379674,1.4451825991)
(Time zone: +00:00 Europe/London)
by uisce_beatha

This species is native to this region.
Observation (ID 326646856):
more details at iNaturalist.org

Carcinus maenas

on Saturday, 15th November 2025 at 2:41 PM
in De Haan Zwarte Kiezel, 8421 De Haan, Belgien

Open in Google Maps
(51.2877777778,3.0466972222)
(Time zone: +01:00 Europe/Brussels)
by marcoschmidtffm

This species is native to this region.
Observation (ID 326683541):
more details at iNaturalist.org

Carcinus maenas

on Saturday, 15th November 2025 at 2:41 PM
in Cape Cod Canal Bike Paths, MA, US

Open in Google Maps
(41.7787563931,-70.4941307252)
(Time zone: -05:00 America/New_York)
by calebgriffin11

This species was introduced to this region.
Observation (ID 327386476):
more details at iNaturalist.org

Carcinus maenas

on Saturday, 15th November 2025 at 2:34 PM
in Le Port, Le Havre, France

Open in Google Maps
(49.4892001724,0.1183217057)
(Time zone: +01:00 Europe/Paris)
by frederic-andre

This species is native to this region.
Observation (ID 327386472):
more details at iNaturalist.org

Carcinus maenas

on Saturday, 15th November 2025 at 2:16 PM
in Le Port, Le Havre, France

Open in Google Maps
(49.4892001724,0.1183217057)
(Time zone: +01:00 Europe/Paris)
by frederic-andre

This species is native to this region.
Observation (ID 326976692):
more details at iNaturalist.org

Carcinus maenas

on Saturday, 15th November 2025 at 1:31 PM
in Sussex County, DE, USA

Open in Google Maps
(38.8062944444,-75.0963833333)
(Time zone: -05:00 America/New_York)
by primno

This species was introduced to this region.

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