Where did they come from ??

 We are now catching 3 spot crabs regularly, I have never seen them till this year, where did they come from & what regs do they come under??

Image Upload: 

Vinesh87's picture

Posts: 2751

Date Joined: 02/04/11

 3 spot crab, got a picture? 

Wed, 2014-04-16 15:57

 3 spot crab, got a picture? 

Posts: 908

Date Joined: 06/05/12

I know they are introduced ,

Wed, 2014-04-16 16:14

I know they are introduced , but are they as good to eat as our crabs ?

Posts: 94

Date Joined: 14/10/12

on the chew

Wed, 2014-04-16 16:16

 cooked up just like a bluey

fords_rule85's picture

Posts: 116

Date Joined: 05/03/09

3 spot crab

Wed, 2014-04-16 16:31

Here is a link with some info on the species, looks to be of the same genus as the blue swimmer crab. Would think they come under same regs. But would pay to confirm.

http://species-identification.org/species.php?species_group=crabs_of_japan&id=1102

dkonig82's picture

Posts: 2091

Date Joined: 06/07/10

Wow, never seen one of those

Wed, 2014-04-16 16:40

Wow, never seen one of those before.

Where are you getting them?

____________________________________________________________________________

When asked by a non-fisherman 'how many fishing rods do you really need?' the correct answer is either:

n+1 (where n is the number of fishing rods you currently own); or

n-1 (where n is the number of fishing rods which would cause your significant other to dump you. 

clogwog's picture

Posts: 265

Date Joined: 01/02/11

I use to catch them 25 years

Wed, 2014-04-16 17:28

I use to catch them 25 years ago from coogee jetty, not as big as a blue manner but taste pretty good. We use to catch them at night only

around this time of year.

 

Paul_86's picture

Posts: 1449

Date Joined: 27/03/09

 I actually spotted one a few

Wed, 2014-04-16 19:38

 I actually spotted one a few weeks ago about 25km's off hillaries in 30 odd meters of water splashing around on the surface! Thought that was a bit odd

kirky79's picture

Posts: 1351

Date Joined: 13/01/12

 Used to get a similar crab

Wed, 2014-04-16 22:21

 Used to get a similar crab over east. We called it a sand crab. Same shell shape as a blue swimmer.  Like the one above but without the 3 dots. Another one for Glenn maybe???

lachieH's picture

Posts: 1126

Date Joined: 02/03/13

 Maybe a mutation of blue

Wed, 2014-04-16 22:24

 Maybe a mutation of blue manna?

____________________________________________________________________________

Fishing the swan for bream, it's just an obsession

Posts: 66

Date Joined: 21/03/14

SAND CRAB

Wed, 2014-04-16 22:40

HAVE CAUGHT THEM ON THE BEACH IN MANDURAH & JURIEN BAY , WE JUST CALLED THEM SAND CRABS

Posts: 160

Date Joined: 04/01/13

 Sand crab, look the similar

Wed, 2014-04-16 22:40

 Sand crab, look the similar to the sand crabs in Busso, except they only have 2 spots. A guy from over east told me they taste like blues, tryed one, good but not as sweet. No bag or size limit. 

____________________________________________________________________________

 Fisherman, constantly trying to out-smart fish.......with limited success  

bitten's picture

Posts: 803

Date Joined: 07/04/10

 used o get plenty when i was

Thu, 2014-04-17 00:04

 used o get plenty when i was pro crabbing in shark bay, they are called 3 spot crab, we would throw them back, no market for them, cant say i ever ate one though

Vinesh87's picture

Posts: 2751

Date Joined: 02/04/11

Hmm in 20+ years of diving

Thu, 2014-04-17 10:14

Hmm in 20+ years of diving for crabs in the swan and the ocean i have never seen one!! Look slike a Blue with spots!

Glenn Moore's picture

Posts: 228

Date Joined: 13/02/12

Three-spotted Crab

Thu, 2014-04-17 14:39

Not my field, but I asked and can confirm what a few have said above that it is a Three-spotted Swimmer Crab (Portunus sanguinolentus).  Also called Blood-spotted Swimmer Crab.

It is widespread from Africa to Hawaii, including being native to Australia.  Apparently they often swim at the surface, especially at night.

____________________________________________________________________________

Glenn Moore

Curator of Fishes

Western Australian Museum

twitter @WestOzFish