2020 WATER QUALITY-(B&C) Marine & Estuary

1. KAREN LANCOUR National Bio Rules Committee Chairman 2020 WATER QUALITY-(B&C) Marine & Estuary C. Robyn Fischer National Event Supervisor

2. Event Rules – 2020 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 – 2020 • BE SURE TO CHECK THE 2020 EVENT RULES FOR EVENT PARAMETERS AND TOPICS FOR EACH COMPETITION LEVEL

4. SOSITRAINING MATERIALS • Training Power Point – content overview • 6 Training Handouts – overview, general principles, each section of competition • Sample Tournament – sample problems with key • Event Supervisor Guide – prep tips, event needs, and scoring tips • Coral Reef extras • Online textbook

5. SO WEBSITE TRAINING MATERIALS EVENT RESOURCES – the Science Olympiad website www.soinc.org under Event Information-will be posted throughout the fall • Training Power Point – content overview • Internet Resource – links to good resources for learning content • Training Handouts – overview, general principles • Sample Tournament – sample problems with key • Event Supervisor Guide – prep tips, event needs, and scoring tips Training CD’s – the Science Olympiad Store at www.soinc.org • Biology-Earth Science CD(BECD) – current year topics for all bio events with training materials and extra resources • Water Quality CD– all content, extra resources, exams for freshwater, estuary & marine systems • Division B and Division C Test Packets – national exams from the previous year

6. Game Plan • Use the POWERPOINT for an overview • Study the HANDOUTS– for background information and content • Use the INTERNET RESOURCES and CD’Sfor more help – see the Science Olympiad National website at www.soinc.org under event information and the Science Olympiad store • Prepare a RESOURCE BINDER and use OTHER TOOLS to LEARN THE CONTENT FOR EACH SECTION OF THE COMPETITION AND MAKE YOUR SALINOMETER • Prepare your ONE PAGE OF NOTES for effective use in competition • Do PRACTICE ACTIVITIES to prepare for doing a competition • Do the SAMPLE TOURNAMENT under timed conditions to experience being timed in competition. • Prepare and do PRACTICE STATIONS, OLD TESTS, andINVITATIONALS–to master knowledge, teamwork, and using your page of notes effectively under timed conditions.

7. Aquatic Ecosystems Freshwater - 2019 Lotic ecosystems – flowing water Streams Rivers Lentic ecosystems – still water Ponds Lakes Wetlands Estuary ecosystems – 2020 Marine ecosystems – 2020 Coral Reef Ecology – 2020

8. EVENT COMPONENTS • Ecology Content – 2020 • Part 1 – Estuary and Marine Ecology • Part 2 – Coral Reef Ecology • Part 3 – Water Monitoring and Analysis • Part 4- Salinometer • Process skills in data, graph and diagram analysis • Event parameters – check the event parameters in the rules for resources allowed.

9. Part 1: Estuary and Marine Ecology Areas such as: • Aquatic Ecology in Marine/Estuary Environments • Aquatic Food Chains and Webs • Population Dynamics • Community Interactions • Nutrient Recycling • Water Cycle • Threats to Marine & Estuary Water Quality

10. General Principles of Aquatic Ecology ECOLOGY – how organisms interact with one another and with their environment ENVIRONMENT – living and non-living components • ABIOTIC – non-living component or physical factors as soil, rainfall, sunlight, temperatures • BIOTIC – living component are other organisms.

11. Marine Ecology • Abiotic • Non-living part of the environment • Biotic • Living part of the environment • interdependence of all organisms living in the ocean, in shallow coastal waters, and on the seashore

12. Marine Abiotic Factors • water • salinity • light • pressure • temperature • dissolved gases • pH • tides • currents • waves • substratum • nutrient supply • exposure to air

13. Water Cycle 97 % of the water on earth is salt water in the ocean. Of the 3% of water that is fresh water, 2% is frozen in ice caps and only 1% is usable by organisms as liquid water or water vapor found in lakes, rivers, streams, ponds , in the ground water, and as vapor in the atmosphere

14. Unique Qualities of Pure Water The Unique Nature of Pure Water • Water is 775 times as dense as air at 0 o C • Water is found on earth in three forms – liquid, solid and gas • Density – maximum density is at 4o C not at freeing point of 0 o C and expands as it freezes so ice floats • The H20 molecule is polar and hydrogen bonding is present • Water is a polar molecule; one end is positively charged and the other is negatively charged • Cohesion of water molecules at the surface of a body of water (surface tension) is very high

15. Salt Water Features The oceans consist of (by mass): • 96.5% water • 3.0% sodium and chlorine ions (table salt, Na+ and Cl–) • 0.5% other salts

16. Marine Environments

17. Marine Regions

18. Food Chain • Producer • 1st order Consumer or Herbivore • 2nd order Consumer or 1st order Carnivore • 3rd order Consumer or 2nd order Carnivore • 4th order Consumer or 3rd order Carnivore • Decomposers – consume dead and decaying matter as bacteria

19. Marine Food Web

20. Ecologic Pyramids Ecological 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 inverted due to size of individuals • Biomass 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.

21. Trophic Pyramids-Marine The 10% rule for Energy Pyramids

22. Carbon, Nitrogen & Phosphorus Cycles

23. Threats to Marine Ecosystems • Oil spills and their ecological disasters • Marine dumping of wastes – plastic and other wastes • Dredging Wastes • Overfishing • Ocean acidification reducing calcium carbonate • Population displacement • Mangrove Destruction • Bycatch – marine wildlife unintentionally caught as sea turtles, porpoises, albatross, crabs, starfish & fish • Whaling is still a problem though strides are being make

24. Threats to Ocean Health • Marine Pollution • Habitat Destruction • Overfishing and Exploitation • Climate Change • Sea Temperature Rise • Ocean Acidification • Invasive Species • Ocean Dead Zones

25. Estuaries The areas of water and shoreline where a freshwater stream or river merges with the ocean Estuaries can be partially enclosed body of water (such as bays, lagoons, sounds or sloughs) where two different bodies of water meet and mix They often bordered by salt marshes or intertidal mudflats Salinity varies within the estuary from nearly fresh water to ocean water

26. Importance of Estuaries • Of the 32 largest cities in the world, 22 are located on estuaries • Many animal species rely on estuaries for nesting and breeding • Most of the fish and shellfish eaten in the United States, including salmon, herring, and oysters, complete at least part of their life cycles in estuaries • Estuaries filter out sediments and pollutants from rivers and streams before they flow into the ocean, providing cleaner waters for humans and marine life • Humans also rely on estuaries for recreation, jobs, and even our homes • Coastal development, introduction of invasive species, over fishing, dams, and global climate change have led to a decline in the health of estuaries, making them one of the most threatened ecosystems on Earth

27. Estuary Classification Estuaries can be classified according to their water circulation: The amount of circulation affects the salt distribution and salinity concentrations salt-wedge fjord slightly stratified vertically mixed freshwater 

28. Common Estuary Habitats • oyster reefs • kelp forests • rocky and soft shorelines • submerged aquatic vegetation • coastal marshes • mangroves forests • deepwater swamps and riverine forests • mud flats • tidal streams • barrier beaches • salt marshes

29. Adaptation of Organisms • Physiological adaptations • How organisms adapt to the environment by changes in metabolism, behavior and other characteristics. • The genes of the organism remains unchanged • The adaptation is not passed onto its progeny • Evolutionary adaptations • Over generations, species adapt to the environment through natural selection. • Genetic differences of an individual organism that makes it better adapted to its environment are passed onto the organism’s progeny

30. Adaptations of Estuary Organisms Salinity, temperature, water levels and light levels vary along the length of an estuary • shutting up shells, digging borrows and excretion of excess salts • fish maintain water balance by actively drinking salt water • increasing their respiratory water flow and increase oxygen consumption • mechanisms to deal with high energy winds and waves • most efficient tree is low, with numerous crowded branches • the tree may include flattening of the trunk, root and branches in a plan parallel to the wind direction

31. Estuary Organisms & Survival

32. Estuary Food Web

33. Threats to Estuaries EPA • Too many nutrients • Pathogens • Toxic chemicals • Habitat loss • Invasive Species • Changes in water flow

34. Point and Non-Point Pollution Sources • Pollutants pose a large threat to estuarine organisms • Pollutants are introduced into estuaries from either point sources or non-point sources. • Point sources are clearly defined, localized inputs such as pipes, industrial plants, sewer systems, oil spills from tankers, and aquaculture ventures. • Non-point sources are indistinct inputs that do not have a clearly defined source, such as runoff of petroleum products from roadways or pesticides from farmland. • A majority of pollutants find their way into estuaries from non-point sources • Non-point sources are harder to detect and control • Reduction of pollution requires substantial individual and collective efforts • The federal and state governments regulate them.

35. Estuary Preservation • Ensuring the health of our estuaries is vital to the survival of the plant and animal communities • To preserve our estuaries, the National Estuarine Research Reserve System was established to protect more than 1.3 million acres of estuarine habitat for long-term research, monitoring, education, and stewardship throughout the coastal United States.

36. Part 2: Coral Reef Ecology • Examine coral reefs and the effects of pollution on reef ecosystems • Topics that may be included are • coral reef biology • growth and reproduction • zooxanthellae • reef fish communities • reef ecosystem • health indicators • the importance of coral reefs • problems associated with pollution • management of reef systems

37. Coral Polyp • Stony corals are the major reef architects. These small marine animals, (individual organisms are called polyps), produce a hard skeleton made of calcium carbonate, which they extract from the seawater and combine with CO2 for limestone • Other reef building organisms include fire corals, blue & pipe corals, coralline algae, tropical reef worms

38. Coral Life Cycle • First stage of the coral’s life cycle is planula larvae, which allows it to be free swimming. • Second stage of its life is polyp which is when the coral is stuck to a rock. • In the polyp stage, it is able to reproduce, • either asexual - involves the splitting of a coral (called fission) or sprouting another coral from itself (called budding). • sexually (with another polyp) • involves a cycle of: • SPAWNING >> FERTILIZING >> PLANULAE LARVAE SETTLEMENT >> CLONING

39. Symbiosis Coral & Zooxanthellae • Coral Polyp provides a home for the zooxanthellae, it provides nitrates and phosphates, and it gives off CO2 • Zooxanthellae, a dinoflagellate carries out photosynthesis and make oxygen and food for the polyp through photosynthesis, gain nutrients from the corals nitrogen and phosphorus wastes, and provide for most of the colors for the coral in the reef making them look like underwater gardens

40. Coral Reef Regions

41. Requirements for Reef Formation • Solid structure for the base with a hard substrate for attachment • Warmwater temperatures > 20°C (68°F) and oceanic salinities • High Light Levels • Clear waters with high water transparency • Low nutrient waters - low in phosphate and nitrogen nutrients • Good water circulation with moderate wave action to disperse wastes and bring oxygen and plankton to the reef

42. Coral Reef Development

43. Zones of a Coral Biome • Shore or inner reef zone - area is between the crest and the shoreline-full of life including fishes, sea cucumbers, starfish, and anemones. • Crest reef zone - highest point of the reef and where the waves break over the reef. • Fore or outer reef zone - As the reef wall falls off, the waters get calmer. Around 30 feet deep, will be the most populated part of the reef along with lots of different types of coral species.

44. Coral Reef Organisms Coral reefs are inhabited by thousands of species including: • Algae • Sponges • Soft corals • Sea slugs • Urchins and star fish • Worms • Crabs and lobster • Snails • Clams, scallops, and barnacles • Fish • Sea turtles • Sharks and rays

45. Coral Reef Food Web

46. Coral Reef Fish Communities

47. Coral Reef Importance • Fishery and nursery areas (food) • Tourism, recreation • Potential medicines • Coastal protection

48. Coral Reef Health Indicators • Marine Apex Predators • Biomass • Average Catch Length • Coral Cover • Indicator Organisms

49. INDICATOR ORGANISMS • Reef Check http://reefcheck.org/about_RC_Reef/publications/Reef%20Check%20Report.pdf/RC_report_FINAL_2.pdf • Global Coral Reef Monitoring Network-http://gcrmn.org/gcrmn-publication/status-of-coral-reefs-of-the-world-2008/ • http://gcrmn.org/publication-category/status-of-coral-reefs-of-the-world/

50. Healthy vs. Badly Damaged Reef