Crab

Physical characters

Adult male crabs average 143-149 mm in carapace width and 1.7-2.4 lb in weight. Females are considerably smaller, averaging 102 mm in width and 0.6-0.8 lb in weight. Average size of adults and juveniles decreases with greater depth.

Molting probably takes place in late summer - fall. Most females cease to molt after the puberty molt. Adult males may not molt every year. The mean carapace width increase after molting for juvenile crabs was calculated to be 26.14%.

Minimum size at maturity is approximately 118 mm carapace width for males and 85 mm for females. Age at maturity is predicted to be 5-6 years.

Reproduction

Adult males migrate to deeper waters in the fall and winter, presumably for mating. Tanner crabs are probably polygamous i.e. a single crab will mate with more than one individual. Eggs are carried by the female for almost a year and hatch in the next winter specially between January to March just before the next batch of eggs are ovulated and then fertilized. Larvae are planktonic near the sea surface for approximately of 80 days. During this planktonic phase, surface currents are mostly directed offshore. Consequently, when the larvae settle to the bottom, they are distributed at greater depths. Young crab then migrate to shallower depths as growth proceeds.

Food

The Tanner crabs are probably food generalists, opportunistic, and sometimes cannibalistic.

List Of Animals
Aardvarks	African Clawed Frog
African Elephants	African Grey Parrots
African Wild Dog	Africanized Bees
Albatross	Amazon River Dolphin
Anacondas	Anadromous Fish
Anadromous Fishes Chinook Salmon	Anadromous Fishes Coho Salmon
Anadromous Fishes Steelhead	Andean Condors
Anemone Crab	Anemone Shrimp
Angel Shark	Angelfish Breeding
Angelfish	Annelids Earthworms
Annelids Leeches	Annelids
Antelopes	Antlions
Ants	Apes
Arachnids	Arctic Terns
Armadillos	Arowana
Arrow Crab	Arthropods
Asian Barbets	Asian Elephants
Asiatic Black Bear	Atlantic White Sided Dolphins
Australian Brush Turkey	Australian Fur Seal
Avocets	Axolotls
Babirusa	Baboons
Badgers	Bald Eagles
Baleen Whales	Ball Pythons
Banded Coral Shrimp	Bandicoots
Barn Owls	Basilisks
Basking Shark	Bass
Bats	Bearded Dragons
Bears	Beavers
Bed Bugs	Beluga Whales
Bengal Tigers	Betta Splendens
Betta Splendens	Bilbies
Bird Eating Spiders	Bird Eating Spiders
Black Howler Monkeys	Black Bear
Black Dogfish Shark	Black Howler Monkeys
Black backed Three toed Woodpecker	Blood Red Fire Shrimp
Blue Crabs	Blue Shark
Blue Whale	Bluebirds
Boa Constrictor	Boa Constrictor
Bobcats	Bogong Moth
Bongo	Bonobos
Boobies	Bottlenose Dolphins
Bottlenose Whales	Bowhead Whales
Brine Shrimp	Brine Shrimp
Broad Winged Hawks	Broad Winged Hawks
Brown Pelican	Brown Bear
Brown Pelican	Brydes Whales
Buffalo	Bull Shark
Bull Shark	Burrowing Owls
Burrowing Owls	Button Quail
Button Quail	Caenorhabditis elegans
California Condors	California Quail
California Red Legged Frog	California Sea Lion
California Condors	California Quail
California Red Legged Frog	California Sea Lion
Camel Spiders	Camel Spiders
Camels	Canada Goose
Canada Goose	Canaries
Cane Toad	Cane Toad
Capuchin Monkeys	Capuchin Monkeys
Capybaras	Caribou
Carpenter Bees	Carpenter Bees
Cassowary	Catfish
Centipedes	Cephalopods
Chatham Island Taiko	Cheetahs
Chickens	Chiggers
Chimpanzees	Chinchillas
Chinese Mitten Crab	Chipmunks
Cicadas	Cichlid
Clownfish	Cnidarians
Cobras	Cockatiels
Cockroaches	Coelacanth
Common Dolphin	Common Loons
Cookie Cutter Shark	Coopers Hawks
Copepods	Copperheads
Cougars	Cow
Cowbirds	Coyotes
Crab	Crane Fly
Crane	Crayfish
Crickets and Grasshoppers	Crocodiles and Alligators
Crustaceans	Cuscus
Daddy Long Legs Spiders	Dama Gazelle
Deer	Degu
Desert Pupfish	Desert Tortoise
Devils Hole Pupfish	Dik Diks
Dingoes	Discus
Dodo	Donkey
Downy Woodpecker	Dusky Shark
Eagles	Earthworms
Eastern Cougar	Eastern Mole
Echidna	Egrets
Finback Whales	Giant Panda
Golden Eagles	Great White Shark
Hairy Woodpecker	Harlequin Shrimp
Harpy Eagles	Humpback Whales
Minke Whale	North Atlantic Right Whale
Northern Flicker	Northern Three toed Woodpecker
Oceanic Whitetip Shark	Orca Killer Whale
Palm Cockatoos	Pileated Woodpecker
Polar Bear	Porbeagle Shark
Portuguese Shark	Purple Shore Crab
Red Bellied Woodpecker	Red headed Woodpecker
Rough Sagre Shark	Sand Tiger Shark
Scarlet Skunk Cleaner Shrimp	Sei Whale
Sharks	Sharpnose Shark
Shortfin Mako Shark	Slipper Lobster
Sloth Bear	Smooth Dogfish Shark
Smooth Hammerhead Shark	Spectacled Bear
Spiny Dogfish Shark	Spiny Lobster
Starfish	Sun Bear
Thresher Shark	Tiger Shark
Wallabies	Walruses
Wasps	Water Dragons
Waterbucks	Weasels
Western Yellow billed Cuckoo	Whale Shark
Whales	White Beaked Dolphins
White Pelican	Whitetip Reef Shark
Whooping Cranes	Widow Spiders
Wild Canids	Wild Cats
Wild and Feral Horses	Wildebeest
Wildlife	Wobbegong Shark
Wolf Spiders	Wolverines
Wolves	Wombats
Wood Storks	Woodpeckers
Worms	Yaks
Yellow Bellied Marmot	Yellow bellied Sapsucker
Zebra Finches	Zebrafish
Zebras	camels adaptations
camels australia	camels biology
camels information	camels life
camels people	camels uses
lis	template