Arthropod Research Activity

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WLHS/Marine Biology/Oppelt Name ______________________ Arthropod Research Activity DIRECTIONS: Read through the following questions. Choose 3 of the 5 questions to answer. Using the internet, type a paragraph on the following topics. Make sure to use your OWN words. Plagiarism will result in a 0. Cite the sources you found your information for each section. 1. Report on the farming of shrimp, crab, lobster, or crayfish. Compare the size, the technology, and the economic importance of this kind of farming in your state and other states. Compare crustacean farming with fish farming. What environmental issues affect crustacean farming? 2. Learn more about where crabs or shrimp live in natural environments. How, if at all, are their bodies adapted to their habitats? What do they eat and, in turn, what animals prey on them (in other words, eat them)? 3. Many people think that barnacles are mollusks. Read references to learn about the anatomy and life history of barnacles. Explain what makes them arthropods. Learn of their economic impact on the shipping industry, which must cope with barnacles growing on ship hulls. 4. Find out what commercial and medicinal products are extracted from arthropod by-products. An example is chitoson, which is extracted from the carapaces of crabs for use in making fibers, films, and artificial human skin. 5. What is the nutritional value of shrimp, crabs, and lobster? How do they compare with fish in protein, fat, and calories? Do you have to eat more crustaceans to get the same nutritional value as fish or vice versa? Which do you think can feed more people and WHY? (Hint: think about factors like number of offspring produced, how long does it take for them to mature, etc..) .

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Introduction to Arthropod Groups What Is Entomology?
Entomology 340 Introduction to Arthropod Groups What is Entomology? The study of insects (and their near relatives). Species Diversity PLANTS INSECTS OTHER ANIMALS OTHER ARTHROPODS How many kinds of insects are there in the world? • 1,000,0001,000,000 speciesspecies knownknown Possibly 3,000,000 unidentiﬁed species Insects & Relatives 100,000 species in N America 1,000 in a typical backyard Mostly beneficial or harmless Pollination Food for birds and fish Produce honey, wax, shellac, silk Less than 3% are pests Destroy food crops, ornamentals Attack humans and pets Transmit disease Classification of Japanese Beetle Kingdom Animalia Phylum Arthropoda Class Insecta Order Coleoptera Family Scarabaeidae Genus Popillia Species japonica Arthropoda (jointed foot) Arachnida -Spiders, Ticks, Mites, Scorpions Xiphosura -Horseshoe crabs Crustacea -Sowbugs, Pillbugs, Crabs, Shrimp Diplopoda - Millipedes Chilopoda - Centipedes Symphyla - Symphylans Insecta - Insects Shared Characteristics of Phylum Arthropoda - Segmented bodies are arranged into regions, called tagmata (in insects = head, thorax, abdomen). - Paired appendages (e.g., legs, antennae) are jointed. - Posess chitinous exoskeletion that must be shed during growth. - Have bilateral symmetry. - Nervous system is ventral (belly) and the circulatory system is open and dorsal (back). Arthropod Groups Mouthpart characteristics are divided arthropods into two large groups •Chelicerates (Scissors-like) •Mandibulates (Pliers-like) Arthropod Groups Chelicerate Arachnida -Spiders,
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Comparative Neuroanatomy of Mollusks and Nemerteans in the Context of Deep Metazoan Phylogeny
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(Includes Insects) Myriapods Pycnogonids Limulids Arachnids
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Evolutionary Crossroads in Developmental Biology: Annelids David E
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