crayfish… crawdad… mudbug… crawfish!!! crayfish… crawdad… mudbug… crawfish!!! dr. craig...

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Crayfish… Crayfish… Crawdad… Crawdad… Mudbug… Mudbug… Crawfish!!! Crawfish!!! Dr. Craig S. Kasper Dr. Craig S. Kasper HCC HCC FAS 1012C FAS 1012C

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Page 1: Crayfish… Crawdad… Mudbug… Crawfish!!! Crayfish… Crawdad… Mudbug… Crawfish!!! Dr. Craig S. Kasper HCC FAS 1012C

Crayfish…Crayfish… Crawdad…Crawdad…

Mudbug…Mudbug…

Crawfish!!! Crawfish!!!

Dr. Craig S. KasperDr. Craig S. KasperHCC HCC FAS 1012CFAS 1012C

Page 2: Crayfish… Crawdad… Mudbug… Crawfish!!! Crayfish… Crawdad… Mudbug… Crawfish!!! Dr. Craig S. Kasper HCC FAS 1012C

Introduction

• Crawfish production is a major market in the Crawfish production is a major market in the U.S.U.S.

• Red Swamp Crawfish—native to the lower Red Swamp Crawfish—native to the lower Mississippi River Drainage. Mississippi River Drainage.

• Preferred habitat—swamps! Preferred habitat—swamps!

• Food—decaying vegetation, aquatic plants, Food—decaying vegetation, aquatic plants, filamentous and attached algae and small filamentous and attached algae and small benthic animals. benthic animals.

Page 3: Crayfish… Crawdad… Mudbug… Crawfish!!! Crayfish… Crawdad… Mudbug… Crawfish!!! Dr. Craig S. Kasper HCC FAS 1012C

Introduction

• As water levels recede (early As water levels recede (early summer) crayfish burrow summer) crayfish burrow (Chimneys) (Chimneys)

• As water levels increase As water levels increase (Fall/Winter)—adults forage on (Fall/Winter)—adults forage on decaying vegetation. decaying vegetation.

• Wild crawfish are harvested Wild crawfish are harvested with baited traps in the Spring. with baited traps in the Spring.

• Crawfish double-cropped with Crawfish double-cropped with rice. rice.

Page 4: Crayfish… Crawdad… Mudbug… Crawfish!!! Crayfish… Crawdad… Mudbug… Crawfish!!! Dr. Craig S. Kasper HCC FAS 1012C

General Crayfish Information

• Adult size is 2" to 6" for most Adult size is 2" to 6" for most US species. Some Australian US species. Some Australian varieties can be much larger varieties can be much larger ((Cherax quadracharanatus, Cherax quadracharanatus, Yabbi).Yabbi).

• Growth occurs following molting Growth occurs following molting or or ecdysisecdysis (shedding of their (shedding of their carapace).carapace). 

Page 5: Crayfish… Crawdad… Mudbug… Crawfish!!! Crayfish… Crawdad… Mudbug… Crawfish!!! Dr. Craig S. Kasper HCC FAS 1012C

General Crayfish Information

• Nearly 150 spp. in N. America, Nearly 150 spp. in N. America, >540 worldwide, but only >540 worldwide, but only several are cultured in this several are cultured in this country.country.

• Color and size varies with Color and size varies with species, diet, and age.species, diet, and age.

• Market value~$5/lbs. when Market value~$5/lbs. when in season.in season.

Page 6: Crayfish… Crawdad… Mudbug… Crawfish!!! Crayfish… Crawdad… Mudbug… Crawfish!!! Dr. Craig S. Kasper HCC FAS 1012C
Page 7: Crayfish… Crawdad… Mudbug… Crawfish!!! Crayfish… Crawdad… Mudbug… Crawfish!!! Dr. Craig S. Kasper HCC FAS 1012C

Crawfish ponds

Harvesting traps Rice fields

Red Swamp Crawfish

Page 8: Crayfish… Crawdad… Mudbug… Crawfish!!! Crayfish… Crawdad… Mudbug… Crawfish!!! Dr. Craig S. Kasper HCC FAS 1012C

Louisiana

90% of crawfish harvest in the U. S. is from:

Grading crawfish

Transport to market alive

Removing tail meat

Boiled crawfish

1998 harvest16,409,000 kg

Page 9: Crayfish… Crawdad… Mudbug… Crawfish!!! Crayfish… Crawdad… Mudbug… Crawfish!!! Dr. Craig S. Kasper HCC FAS 1012C

Dinner anyone??Dinner anyone??

• Crawfish Boil RecipeCrawfish Boil Recipe

Ingredients:Ingredients:• 30 pounds live crawfish (one sack)30 pounds live crawfish (one sack)

2 cups salt for purging2 cups salt for purging2 (3 ounce) boxes crawfish or crab boil seasoning or 2 (3 ounce) boxes crawfish or crab boil seasoning or 2 cups liquid crab boil**2 cups liquid crab boil**4 4 lemons, sliced in half8 bay leaves20 small onions, peeled5 pounds small red or new potatoes, unpeeled10 to 15 ears of fresh corn on the cob, shucked and broken in halvesWhole mushroomsOld Bay Seasoning