Marine Biology MAR111

1. Marine BiologyMAR111 Prof. Nancy Black Lecture: Tu & Th 6:15 – 7:45 pm Lab: Tu 8:00 – 10:00 pm

2. Required books/materials: • Marine Biology, 9th edition, Peter Castro and Michael E. Huber. McGraw-Hill Higher Education. 2013. (recent older editions are OK) • Gloves for dissections.

3. Field Trips: • North Shore – Stony Brook Harbor • South Shore – Cupsogue Beach ($5) • Both are on weekends.

4. Grading: 1000 points total: Lecture = 60% 3 lecture midterm exams (200 points each) drop lowest midterm exam grade = 400 points cumulative final exam = 200 points Lab = 40% midterm quiz = 50 pts practical final exam = 100 pts 10 lab assignments X 10 pts each (drop lowest lab) = 90 pts 2 short research papers (25 pts each) = 50 pts 2 field trips X 50 pts each = 100 pts overall attendance / participation = 10 pts

5. How to get a good grade: • Attend class and lab • Attend the field trips • Print the powerpoint lectures before class and take notes on them • Read the book • Study for the exams (seriously) • Turn in assignments on time • Do not cheat or plagiarize • Do the extra credit work

6. Printing Powerpoint Slides 2-3 per vertical page (3 gives lines for notes) 4 per horizontal page write in margins

7. Marine Biology The study of the organisms that live in the sea http://www.daviddarling.info/images/diatoms.jpg http://www.sfos.uaf.edu/research/arcdiv/watercolumn/copepod/images/full/calanus_marshallae.jpg http://www.sfos.uaf.edu/research/arcdiv/seabottom/asteroids/images/full/ctenodiscus-crispatus.jpg

8. Tools of Marine Biology – Scientific Method • Observe, describe • Coral reef

9. Tools of Marine Biology – Scientific Method • Observe, describe • Stony corals • Animal polyps have algae cells inside

10. Tools of Marine Biology – Scientific Method • Observe, describe • Corals once green and brown are now white • Water temperatures were 30°C (86°F) or more for several weeks http://www.york.ac.uk/depts/biol/units/symbiosis/images/coralbleach.jpg

11. Tools of Marine Biology – Scientific Method • Ask questions • Why did the corals turn white? • Did the warm temperatures cause the problem? Pollution? Salinity changes? UV? • Is it permanent or will the coral recover?

12. Tools of Marine Biology – Scientific Method • Choose one question to address, then create a hypothesis • The prolonged warm water temperatures caused the “bleaching” http://appserv.pace.edu/emplibrary/thermometer.gif AFP/Queensland University/File/Ove Hoegh-Guidberg

13. Tools of Marine Biology – Scientific Method • Conduct a controlled experiment to test the hypothesis • Collect some identical corals • Place some in normal temperature water and others in warmer water http://www.aqob.com.au/images/product/detail/72rosscoralbleachingtanks.jpg

14. Tools of Marine Biology – Scientific Method • Experiment results, statistics • Corals in lab held in the warmer water “bleached” after several weeks while those in the control water did not

15. Tools of Marine Biology – Scientific Method • If confirmed, then more tests of the hypothesis • Experiment must be repeatable • Test other species, temperatures, time frames • If not, then test an alternative hypothesis

16. Tools of Marine Biology – Scientific Method • Theory • After the hypothesis has passed extensive testing and is accepted as true, it may be considered a theory • Explanation supported by evidence • Beware of misuse (scientific theory is not a guess, that’s a hypothesis)

17. Tools of Marine Biology – Scientific Method http://www2.nau.edu/~gaud/bio372/class/behavior/scimeth.gif