Presentation on theme: "KAREN LANCOUR National Bio Rules Committee Chairman"— Presentation transcript:
1 KAREN LANCOUR National Bio Rules Committee Chairman 2013 WATER QUALITY (B&C)KAREN LANCOURNational Bio Rules Committee ChairmanJoyce BockClinton River Watershed Council Volunteer
2 Event Rules – 2013 DISCLAIMER This presentation was prepared using draft rules. There may be some changes in the final copy of the rules. The rules which will be in your Coaches Manual and Student Manuals will be the official rules.
3 Event Rules – 2013BE SURE TO CHECK THE 2013 EVENT RULES FOR EVENT PARAMETERS AND TOPICS FOR EACH COMPETITION LEVEL
4 TRAINING MATERIALS Training Power Point – content overview Training Handout – content informationSample Tournament – sample problems with keyEvent Supervisor Guide – prep tips, setup needs, and scoring tipsInternet Resources & Training Materials – on the Science Olympiad website at under Event InformationA Biology-Earth Science CD and a Water Quality CD are available from SO store at
5 EVENT COMPONENTS Ecology Content – 2013 Part 1 – Freshwater and Estuary EcologyPart 2 – Identify Macro-flora and faunaPart 3 – Water Monitoring and AnalysisProcess skills in data, graph and diagram analysisEvent parameters – check the event parameters in the rules for resources allowed.
6 Part 1: Freshwater and Estuary Ecology Areas such as:Freshwater EcologyAquatic Food Chains and WebsPopulation DynamicsCommunity InteractionsNutrient RecyclingWater CycleAquatic Chemistry and its implications for lifePotable Water TreatmentWaste Water TreatmentWatershed Resource Management IssuesSedimentation PollutionExotic/invasive/harmful species
7 General Principles of Freshwater and Estuary Ecology ECOLOGY – how organisms interact with one another and with their environmentENVIRONMENT – living and non-living componentsABIOTIC – non-living component or physical factors as soil, rainfall, sunlight, temperaturesBIOTIC – living component are other organisms.
8 ECOLOGICAL ORGANIZATION INDIVIDUAL – individual organismsPOPULATION – organisms of same species in same area (biotic factors)COMMUNITY – several populations in same area (biotic factors)ECOSYSTEM – community plus abiotic factorsBIOSPHERE – all ecosystems on earth
9 Aquatic EcosystemsLotic ecosystems – flowing water Streams Rivers Lentic ecosystems – still water Ponds Lakes Wetlands Estuary ecosystems
10 WatershedA watershed or drainage basin is an area of land where water from rain and melting snow or ice drains downhill into a body of water, such as a river, lake, reservoir, estuary, wetland, sea or ocean.
11 ECOLOGY OF INDIVIDUALS Homeostasis – delicate balanceComponentsPhysiological EcologyTemperature and Water BalanceLight and Biological CyclesPhysiological Ecology and Conservation
12 ECOLOGY OF POPULATIONS Properties of populationsPatterns of distribution and densityIntraspecific competitionPopulation dynamicsGrowth and regulationAltering population growthHuman impact
13 ECOLOGY OF COMMUNITIES Closed vs. Open communitiesClosed – sharp boundariesOpen – Lack boundariesSpecies abundance and diversityTrophic Structure of CommunitiesFood chainsFood webTrophic pyramid
14 Food Chain algae mayflies stoneflies trout humans Producer 1st order Consumer or Herbivore2nd order Consumer or 1st order Carnivore3rd order Consumer or 2nd order Carnivore4th order Consumer or 3rd order CarnivoreDecomposers – consume dead and decaying matter as bacteria
16 INTERACTIONS AMONG SPECIES Interspecific competitionPredationExploitationSymbiosis
17 Types of Species Interactions Neutral – two species do not interactMutualism – both benefitCommensalism – one benefits, other neutralParasitism – one benefits, one harmedbut not killedPredation – one benefits, other killed
18 ECOLOGY OF ECOSYSTEMS Energy Flow Community Succession and Stability Energy Flow PyramidsBio-mass PyramidsCommunity Succession and StabilityNutrient Recycling – nutrient cycles
19 Energy vs Nutrient Nutrients – cyclic (Biogeochemical Cycles) Energy flow – one way
20 Ecologic PyramidsEcological pyramid - a graph representing trophic level numbers within an ecosystem. The primary producer level is at the base of the pyramid with the consumer levels above.Numbers pyramid - compares the number of individuals in each trophic level. May be inverteddue to size of individualsBiomass pyramid - compares the total dry weight of the organisms in each trophic level.Energy pyramid - compares the total amount of energy available in each trophic level. This energy is usually measured in kilocalories.
29 Part 2: Macro-flora and Fauna Identify macroinvertebratesIdentify aquatic nuisance plantsby their common nameRelate organisms to water and wetland quality
30 Indicator SpeciesFOR Division C ONLY students will also be expected to know the general ecology, life cycles, and feeding habitats of all listed organismsClass 1-pollution sensitive Class 2-moderately sen. Class 3-moderately tolerant Class 4-pollution tol. Class 5 Air Br.Mayfly Aquatic Sowbug Water Mite Air Breathing Snail Whirligig BeetleCaddisfly Damselfly Midge Deer/Horse Fly Water StriderStonefly Dragonfly Blackfly Tubifex MosquitoDobsonfly Scuds Flatworm Blood Midge Giant Water BugGilled Snails Crane Fly Leeches Back SwimmerWater Penny Water BoatmanRiffle Beetle Predacious Diving BeetleWater ScorpionAquatic Nuisance Plants: Purple Loosestrife, Eurasian Water Milfoil and Water Hyacinth.Aquatic Nuisance Animals: Zebra Mussel; Spiny Water Flea ,Asian Tiger Mosquito, and Carp
38 Part 3: Water Monitoring Understand and interpret data related to testing procedures and purposes for water testing (No actual testing)Build and demonstrate a salinometercapable of testing saltwater (1-10%)
39 Chemical Analysis Salinity - only actual testing with salinometer pH PhosphatesDissolved oxygenTemperatureNitratesFecal ColiformTotal solidsBiochemical oxygen demandTheir relationship to one another
40 Salinomter – Hydrometer Salinometers / HydrometersHydrometer calibrated to read in % of salt concentrationMaterials –soda strawmodeling claya fine-tipped permanent markera tall clear container to holdthe solution for calibrating yourdevicesalt for mixing one or more standard solutionswater (tap water will work-distilled is better)
41 Sample AnalysisUsing the picture below, explain all of the possible human caused problems that can occur. In addition, what types of chemical testing would you perform to confirm your suspicions?
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