crab
what is a crab's main food source?
seaweed, worms, shrimp ect.
what is a crayfish's main food source?
fresh vegetation
what is a lobster's main food source?
fish, crabs, clams ect
what is a prawnś main food source?
plant material and micro-organisms
what is a shrimp´s main food source?
algae, dead and living plants, worms ect
how many species of crab are there?
4,500
how many species of crayfish are there?
640
how many species of lobster are there?
75
how many species of prawns are there?
3,000
how many species of shrimp are there?
over 2,000
how long is a crab's lifespan?
8 to 10 years
how long is a crayfish's lifespan?
how long is a lobster's lifespan?
(male and female are different)
males: 31 years
females: 54
how long is a prawn's lifespan?
little over a year
how long is a shrimp's lifespan?
1 to 6 years
how long are crabs pregnant?
two months
how long are crayfish pregnant?
3 to 4 weeks
how long are lobsters pregnant?
9 10 12 months
how long are prawns pregnant?
40 to 45 days
how long are shrimp pregnant?
about 30 days
how many children do crabs have when they give birth?
2.5 million
how many children do crayfish have when they give birth?
how many children do lobsters have when they give birth?
over 10,000 every year
how many children do prawns have when they give birth?
20-40 depending on the species
how many children do shrimp have when they give birth?
20-30