PPT-Crayfish and Crab culture

Introduction Crayfish are small freshwater arthropods that resemble lobsters They are usually brownishgreen in color but some species may be white pink or even blue Freshwater crayfish are divided into two family groups. Manual calipers are used by sliding the movable arm so the jaws of the ca lipers fit around the carapace The main reading 1 mm is read by finding the closest value above the 582065834858207573475772557718573475775457690576305734757717577255779257602 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). Prelab. 2010. United streaming: crayfish 10:44.  . Youtube. - crayfish external anatomy. http://www.youtube.com/watch?v=rZ-7LF5AkGs. 6.21.  . internal. http://www.youtube.com/watch?v=rpkiNLhCBMU&feature=related. 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 . 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. Brian Helms. 1. and Jim Stoeckel. 2. 1. Department of Biological Sciences. 2. School of Fisheries, Aquaculture, and Aquatic Science. Auburn University, AL 36849. Role of crayfishes in ecosystems. Consumers. Bruce Chittenden. 4.1 Adding Objects Automatically. Right Click on CrabWorld and Select Open editor. Code 4.1. import. greenfoot.*; // (Actor, World, Greenfoot, GreenfootImage). public class . CrabWorld . Spiders, ticks, mites, scorpions. Spider structure. Cephalothorax. . Anterior region of the body. Abdomen. Posterior region of the body. Eyes. 8 simple eyes on the . cephalothorax. Pedipalps. Foot like appendages used for: feeling, sensing chemicals, holding food, communication and mating. Bruce Chittenden. 2.1 Little Crab Scenario. Inheritance. The Arrows Denote Hierarchy. Crab is an Animal. Animal is an Actor. Therefore, It Follows That. The Crab is Also an Actor. Exercise 2.1. Click Run and Nothing Happens. 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 . panel collapsible crab trapWire mesh crab trapCotton mesh crab trapHow a circular/ring crab net works Trap being pulled up Ring that gathers the 4 linesSides snap up to form a pyramid Line tied to eac Kingdom : . Animalia. Phylum : . Arthropoda. Subphylum : . Crustacea. Class : Malacostraca. Order : . Decapoda. 1. Infra order : . Sarah Schieffer, Nicole Bauer, Brandon . Urhammer. , Sarah Bartholomew . Faculty Mentor: Todd Wellnitz, Biology Department. Percent of Rusty Crayfish. Non . sampled . lakes. 0%. 1-40%. 41-80%. 81-100%.