PPT-Crayfish, Crawdads, and Crawfish:

Incidental Aquaculture in Californias Rice Paddies Scott Brady California State UniversityChico Rice production is concentrated on a 1014 inch thick impermeable clay soil layer called the Stockton Clay Adobe This soils impermeability makes paddy rice production possible The rice growing region experiences a Mediterranean climate Rice is planted in April and May and harvested between September and October. They were introduced purposely into a few Arizona reservoirs and other bodies of water decades ago primarily as a food source for sport fish Unfortunately they have dispersed beyond those original sites on their own and have been acciden tally or in S Geological Survey wwwpaseagrantorg The rusty crayfish is an aggressive crayfish with a huge appetite It has not only managed to outcompete native crayfish species but has also devastated aquatic ecosystems in several states including Pennsylvania A Crawfish ‘Beignets’ with Red Pepper ‘Chow Chow’ 10 Duck and Chicken Liver Terrine * 9 Duck and Pork Rillettes 12 Crispy Fried Pork Cheeks Confit apple mostarda, pickl DISSECTION. . Animal Groups. Image from: http://ology.amnh.org/biodiversity/treeoflife/pages/graph.html. ARTHROPODA. “Arthro” = jointed. “pod” = foot. Arthropods. Structures. to identify in lab. Crayfish Study. Scenario:. We are Biological Technicians for National Park Service at Lake Roosevelt National Recreation Area. Part of our job is to help with the Crayfish Inventory and Monitoring Program. For this study our duties will be to set and take in the crayfish traps as well as collecting and analyzing the data.. ) and identification. Crayfish. Crayfish. Phylum: . Arthropoda. Subphlum. : . Crustacea. Class: Malacostraca. Order: . Decapoda. Crayfish. Order: . Decapoda. Families: . Parastacidae. (South America & Australia). Arthropoda. Characteristics. Makes . up . 3/4. . of all animal species. Includes insects, spiders, scorpions, millipedes, centipedes, crabs, lobsters, & crayfish. Arthropod means . ". jointed. Our group is researching, “Which . macroinvertebrate. has the most mercury when compared throughout the trophic pyramid?” . Macroinvertebrates. are insects without a backbone that can be seen with the naked eye.  Mercury is an element that can be found in water, air and soil or sediment. There is more than one specific type of mercury like inorganic, organic, elemental, and metallic (metal). Mercury can also give off toxic vapors which is dangerous for the environment because they are clear, odorless, and invisible, so we don’t even know they are evaporating because we can’t see or smell them. Mercury’s chemical symbol is Hg, which comes from the Latin word . Introduction. Crayfish are small, freshwater . arthropods. that resemble lobsters. . They are usually brownish-green in color, but some species may be white, pink, or even blue.. Freshwater crayfish are divided into two family groups.. e 1. Common water exchange design using baffles in pond. e 2. Paddlewheel aerator-driven water circulation used in shrimp production ponds. Earthen Baffle Levee ater In ater Out ater Current Collectio Crayfish are active mainly at night, hiding by day under stones or in crevices in the riverbank. The white-clawed crayfish was once wi Deleted: ST SY 2 4 8 0 6 4S X 4 2 S S 4 6 0 2 8 6 Rivers Abdomen.  - The abdomen is the segmented tail area. The swimmerets, . telson. , and . uropods. are attached to the abdomen.. Carapace.  - The protective shell (exoskeleton) of the cephalothorax.. Cephalic groove. macroinvertebrate. has the most mercury when compared throughout the trophic pyramid?” . Macroinvertebrates. are insects without a backbone that can be seen with the naked eye.  Mercury is an element that can be found in water, air and soil or sediment. There is more than one specific type of mercury like inorganic, organic, elemental, and metallic (metal). Mercury can also give off toxic vapors which is dangerous for the environment because they are clear, odorless, and invisible, so we don’t even know they are evaporating because we can’t see or smell them. Mercury’s chemical symbol is Hg, which comes from the Latin word .