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European green shore crab

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					                                 MARINE PEST:
           European green shore crab
                              Carcinus maenas


                                                 Key features
                                                 •	 	5	spines	on	each	side	of	eyes
                                                 •	 	Last	pair	of	legs	sharp	&	
                                                     slightly	flattened	at	tips	-	no	
                                                     swimming	paddles	
                                                 •	 	Smooth	green/brown	shell	
                                                     with	pale	orange	underside
                                                 •	 	Shell	up	to	7	cm	wide
                                                 Habitat
                    5 cm                         •	 	Prefers	bays/estuaries	but	
                                                     found	on	all	types	of	shores	up	
                                                     to	60	m	depth
                                                 •	 	Tolerates	temperatures	up	to	
                                                     30˚C

  spines                                         Impacts
                                                 •	 	Aggressive	predator,	
                                                    outcompetes	natives	for	food		
                                                    &	habitat




                                                 Known locations
                                                 •	 	NSW;	Vic;	Tas;	SA	
RepoRt immediately outside known locations!
                                                    Likely to establish

1. Note the exact location
2. If possible, collect a sample and freeze in
   a plastic bag or take a photo
3. See www.marinepests.gov.au
   for your state contacts
What it is not
Native species that look similar to the pest
                                        Sand crab
                                        Ovalipes australiensis
                                        Key Features
                                          D
                                        •		 istinctive	purple	spots	towards	
                                          rear                                   What you can do
                                          S
                                        •		 wimming	paddles	on	last	set	
                                          of	legs                                •	 	Inspect	&	clean	niche	
                                        •		 ale	grey	shell,	up	to	10	cm	wide
                                          P                                          areas	&	antifoul	your	
                                        Habitat                                      vessel	regularly
                                          B
                                        •		 urrows	into	sand
                       10 cm            •		 ntertidal	&	subtidal	to	60	m	
                                          I                                      •	 	Clean	&	dry	equipment	
                                          depth                                      before	transporting	
                                        Known Locations                              &	using	in	a	different	
                                          Q
                                        •		 ld;	NSW;	Vic;	Tas;	SA;	WA
                                                                                     location

                                        Paragrapsus species                      Learn more
                                        Key Features                             Read	the	national	biofouling	
                                          3
                                        •		 	spines	on	each	side	of	eyes         management	guidelines	for	
                                          F
                                        •		 irst	walking	legs	have	felt	patch	
                                          on	inner	side                          your	sector.
                                          Y
                                        •		 ellow/brown	shell	with	dark	
                                          red	spots                              www.marinepests.gov.au
                                          S
                                        •		 hell	up	to	4.5	cm	wide
                           3 cm         Habitat
                                          U
                                        •		 nder	stones	&	burrows	in	mud
                                          I
                                        •		 ntertidal	to	shallow	subtidal
                                          E
                                        •		 stuaries	&	sheltered	coasts
                                        Known Locations
                                          S
                                        •		 outh	of	Narooma,	NSW;	Vic;	
                                          Tas;	SA


                                        Rough rock crab
                                        Nectocarcinus integrifons
                                        Key Features
                                          S
                                        •		 hell	covered	in	fine	hairs
                                          P
                                        •		 incers/fingers	of	claws	black
                                          L
                                        •		 ast	pair	of	legs	not	swimming	
                                          paddles
                                          S
                                        •		 hell	up	to	8	cm	wide
                                        Habitat
                                          R
                                        •		 ocky	bottoms,	sandy/muddy	
                     8 cm                 shores,	sheltered	seagrass	beds
                                          I
                                        •		 ntertidal	to	15	m	depth
                                                                                 Photograph credits
                                        Known Locations                          This side: Michael Marmach, Museum Victoria
                                          F
                                        •		 remantle,	WA	to	Port	Stephens,	      (top & centre); Graham Edgar, University of
                                          NSW;	around	Tas                        Tasmania (bottom)
                                                                                 Reverse side: P. Gibson NSW Dept. Primary
                                                                                 Industries (top). CSIRO Marine & Atmospheric
                                                                                 Research (bottom)




This collaborative effort is supported by the Australian Government,
state and territory governments, marine industries, researchers and
conservation groups.
Last revised August 2008

				
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Description: European green shore crab