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BIOACCUMULATION Lauren Campbell What Is Bioaccumulation? Bioaccumulation is the build up of a biological substance in organisms. This can happen at any trophic level.
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Biomagnification Biomagnification is the process where chemicals accumulate AND become more concentrated at each trophic level of the food chain. ORCAS ...
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DDT A persistent pollutant * In lesson three the students will work with an osprey dataset. To familiarize students with some of feeding habits of osprey,the example ...
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Pesticides and Bioaccumulation Pesticides, radioactive isotopes, heavy metals, industrial chemicals (eg PCBs) can be taken up via food or simply absorbed.
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As these chemicals move through the food chain there concentrations increase in ... osprey eagles, pelicans, falcons and hawks ...
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Bioaccumulation and Biomagnification Bioaccumulation: a toxin that remains in body tissue. Toxins that bioaccumulate include PCB s, DDT and mercury.
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PESTS AND PESTICIDES. Pests are organisms that compete with or damage crop species. Examples include weeds, caterpillars, and mice. To maximize the growth of a crop ...
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Support Research to Understand Processes Determining Observed ... Monitoring to Support the Comprehensive Everglades Restoration Plan. FRESHWATER SAMPLING SITES ...
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Bioaccumulation in the Great Lakes. Jay Sobel. Sara Syswerda. Game fish of the Great Lakes Region ... Fish are consumers, which means that they eat other ...
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... Dennis Wentz Sources anthropogenic and natural Hg Hg+2 MeHg Methylation Hg Hg+2 Biomagnification PHg (particulate Hg) PHg Sed. Hg Hg ...
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Crayfish. Cast of Food Web Characters ... Crayfish. Plant material and algae. 3-76 g/g ww (enough to cause death) 1-2 g/g ww ...
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California Sediment Quality Objectives Bioaccumulation Methods A Presentation to the SQO Scientific Steering Committee July 27, 2005 Presentation Summary Background ...
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Emissions of mercury from industrial sources. Mercury ... Mercury cycling in lake algae ... insectivore, breeds in coniferous forests above 900m. ...
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Distribution and Bioaccumulation of Zinc, Nickel, Lead and Cadmium in Water, Sediment and Some Biota of Al-Gharraf River South of Iraq
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Assessment of mercury bioaccumulation within the lower food web of lakes in the western Great Lakes Region Super Odon-8 Hotel Kris Rolfhus, Britt Hall, Michael ...
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Female Harbor Seal. 10.3. 4000. Ecological Risk LOAEL. Tern Egg. 17.0. 5000 ... Male harbor seal. 0.85 (0.37 1.93) 1.19 (0.44 - 3.21) Phalacrocorax auritus ...
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Modelling the PCB bioaccumulation in the hake (Merluccius merluccius) from the Gulf of Lions (Mediterranean sea) X. Bodiguel1, V. Loizeau1, C. Mellon2, F. Ferraton2
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... is what happens when the concentration of pesticides first sprayed on the soil ... of spraying MORE of a pesticide on the crop, farmers should spray DIFFERENT ...
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Ex parte Allen (polyploid ... colony collapse and bioaccumulation Economic injury to nonadopting farmers Laws regulating GMO use Laws governing GMO use ...
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The factors that control mercury bioaccumulation are not fully understood. Highest in predator fish, more steps in food chain Aquatic food chain . Title:
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Sustaining Biodiversity: The Species Approach Chapter 8 * * * Figure 8-11 Bioaccumulation and biomagnification: DDT is a fat-soluble chemical that can accumulate in ...
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... Health: Pesticides & Lactation. Ana Maria Osorio, ... Physiology and lactation influence considered: Age (bioaccumulation over time in adipose tissue) ...
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These pesticides were given to the animals at levels within the range often encountered in ... Bioaccumulation can be a process enhancing a pollutant s ...
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Bioaccumulation and Biomagnification Pesticides Pro and Con Kill unwanted pests that carry disease (rats, mosquitoes, Tse-Tse flies) ...
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... but the process of bioaccumulation and incremental increases in the food chain creates a threat of overexposure.
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... dosage, bioaccumulation, biomagnification, synergism, response, acute effect, chronic effect ... Non-transmissible disease, transmissible disease, pathogens, ...
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Essential that the fish are not perceived as tainted. Essential that there are no public health concerns. Bioaccumulation ... Fodder. Forage ...
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DAMS & THE AQUATIC ENVIRONMENT: SEDIMENT, HYDROLOGY, ... Midge larvae Amphipod. Bioaccumulation Testing. Caged organisms. Ideally expose until equilibrium ...
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Contaminants dans la cha ne alimentaire. augmentation rapide. Zone de ... Contaminants dans la cha ne alimentaire. Facteur de bioaccumulation (FBA) : FBC ...
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... Procedure for classifying a substance dangerous to the aquatic environment when ... LC50 1mg/L. NOEC 1 mg/L. RAPIDLY. DEGRADABLE. BIOACCUMULATION. NO ...
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Figure 54.1 An overview of ecosystem dynamics ... Figure 54.4 Regional annual net primary ... Great Lakes Food Web. Biomagnification 'Bioaccumulation' ...
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Voluntary confidential volume of use surveys. Conducted by IFRA. Program ... Bioaccumulation (Co-Chair) and Animal Alternatives SAGs. SAICM Steering Committee ...
Title: PowerPoint Presentation Author: Michael H. Dong Last modified by: Eugene Chubmkov Created Date: 5/28/2004 3:28:59 PM Document presentation format
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Decomposer Dead Organisms. How Ecosystems Work. Food Chains (Linear Relationships) ... As bigger animals eat smaller animals, the level of contamination in the food is ...
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Introduction to biomagnification
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Prevention of Biomagnification In an attempt to eradicate biomagnification, the U.S. and several countries worldwide have placed a ban on the use of DDT.
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DDT. Background Information: Before 1972, DDT was commonly used as a pesticide; pesticides are chemicals used to kill pests like mosquitos. Overtime, DDT polluted the ...
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The fully customizable modular PowerPoint deck allows the ... Community Resources for ... Utilize Resources on-line Virtual File Cabinet http ...
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Food chains If an ecosystem is ... use sun s energy Make their own food - autotrophs Consumers eat other organisms (heterotrophs) Primary eat plants ...
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Title: PowerPoint Presentation Last modified by: Mandy Created Date: 1/1/1601 12:00:00 AM Document presentation format: On-screen Show Other titles
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Sediment Quality Objectives Indirect Effects Project Ben Greenfield Aroon Melwani John Oram Mike Connor San Francisco Estuary Institute (SFEI)
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Biological Diversity & Conservation
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Future Science Issues of BFRs Linda S. Birnbaum Director, Experimental Toxicology Division NHEERL Research Triangle Park, NC Region 2 Science Day/Non-Regulated ...
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Title: Humans in the Biosphere Author: mmerritt Last modified by: Slater, Pamela L Created Date: 9/21/2005 7:24:00 PM Document presentation format
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Krill as a major vector for Domoic acid. Pseudo-nitzschia in Monterey Bay, CA ... Krill: a potential vector for Domoic acid in marine food webs. ...
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Matter and Energy in Ecosystems Almost all energy in the ecosystem comes originally from the sun. Food chains show the direction of energy transfer.
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Exam: Wednesday, April 2 Study Guide: today Review: Monday, March 31 Student numbers on Exam Solubility Solubility 108 inches of rain in south FL.
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Determines the amount of time a substance will remain in the environment ... Eco Film is a non-toxic, fully biodegradable and compostable film for a wide ...
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Chapter 23 The Pesticide Dilemma
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Evaluation of Unknown Organic Contaminants in the San Francisco Estuary Daniel R. Oros and Nicole David San Francisco Estuary Institute Robert Risebrough
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Chemical and biological control of agricultural pests 5.5 Learning Objectives All students should know: What pests and pesticides are. Most students should know: The ...
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Title: Slide 1 Author: Jill Last modified by: GX270image Created Date: 10/12/2004 4:48:36 AM Document presentation format: On-screen Show Company: Saves
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Development of Sediment Quality Objectives for California Bays and Estuaries Technical Approach Steven Bay Southern California Coastal Water Research Project (SCCWRP)
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The GEMCO PROJECT -2- The foodweb model ABARNOU, A.(1), LOIZEAU, V.(1), ROMA A, L.A.(2), BAART, A.(3), van HATTUM, B.(4), THOMAS, P.(5) (1) IFREMER, Direction de l ...
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Pests and Pesticides Pesticides Pesticides are chemicals that are designed to kill pests. A pest is an organism that humans consider harmful or inconvenient.
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