PPT-Crayfish

Prelab 2010 United streaming crayfish 1044   Youtube crayfish external anatomy httpwwwyoutubecomwatchvrZ7LF5AkGs 621   internal httpwwwyoutubecomwatchvrpkiNLhCBMUampfeaturerelated. 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 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). Are changes in physical forms or behaviors brought about by natural selection that enable an organism to better survive in its natural habitat.. Many adaptations have to do with getting food and oxygen, moving or staying in one place. 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 . 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. Crayfish. FOSS Structures of Life, TESLA Science Notebooks . Big Idea:. All living organisms have identifiable structures . and characteristics . that . serve . different functions in . growth, survival. Video: . https://www.youtube.com/watch?v=3vENk9QPp4M. Crustaceans. All Arthropods have:. Exoskeleton. Jointed legs. Source: https://www.thoughtco.com/subphylum-crustacea-crustaceans-1968439. Crustaceans Basics. Incidental Aquaculture in California's Rice Paddies. . Scott Brady. California State University-Chico. Rice production is concentrated on a 10-14 inch thick, impermeable clay soil layer called the Stockton Clay Adobe. This soil’s 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.. 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 . McClanahanTR 1997 Predation and the distribution and abundance of tropical sea ur-chin popuIationsJournal of Experimental Marine Biology and Ecology221 231-255McShane PE 1997 A summary of commercial c 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%.