marine biology mar111 prof. nancy black lecture: tu & th 6:00 – 7:25 pm lab: tu 7:40 – 9:40...
TRANSCRIPT
Marine BiologyMAR111
Prof. Nancy BlackProf. Nancy Black
Lecture: Tu & Th 6:00 – 7:25 pmLecture: Tu & Th 6:00 – 7:25 pmLab: Tu 7:40 – 9:40 pmLab: Tu 7:40 – 9:40 pm
Books:
Marine Biology, 9th edition, Peter Castro and Michael E. Huber. McGraw-Hill Higher Education. 2013. (recent older editions are OK)
Laboratory and Field Investigations in Marine Life, 10th edition, James Sumich and Gordon Dudley. Jones & Bartlett Publishers. 2011. (optional)
Grading:
1000 points total:Lecture = 60%
3 lecture midterm exams (200 points each) drop lowest midterm exam grade = 400 pointscumulative final exam = 200 points
Lab = 40%midterm quiz = 50 ptspractical final exam = 100 pts10 lab assignments X 10 pts each (drop lowest
lab) = 90 pts2 short research papers (25 pts each) = 50 pts2 field trips X 50 pts each = 100 ptsoverall attendance / participation = 10 pts
How to get a good grade:
Attend class and lab 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 the extra credit work Students who attend, participate, show interest, and/or show improvement will get a bump up a half grade at end if on the borderline
Printing Powerpoint Slides
2-3 per vertical page (3 gives lines for notes)
4 per horizontal pagewrite in margins
Marine Biology
The study of the organisms that live in the sea
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
http://www.daviddarling.info/images/diatoms.jpg
Marine Biology
A subset of Biology Has subdisciplines:
Taxonomy Ecology Behavior Physiology Cellular and
molecular biology Evolution
Marine Biology
Biological Chemical
Geological Physical
A subset of Oceanography:
http://community.webshots.com/photo/1098385609029448148TPhhYc http://www.webshots.com/g/33/628-sh/12378.html
Marine Biology
Why is it important?
Tools of Marine Biology
Tools of Marine Biology
http://www.riverheadfoundation.org/research/content.asp?code=Sargehttp://microbewiki.kenyon.edu/images/9/94/Bloom_summer_off_cornwall.jpg
Tools of Marine Biology
http://www.gma.org/onlocation/mocness.html
http://alpha1.msrc.sunysb.edu/flaxpond/Images1/Mvc-008f.jpg
Tools of Marine Biology – Scientific Method
Observe, describe Coral reef
Tools of Marine Biology – Scientific Method
Observe, describe Stony corals Animal polyps have algae cells inside
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
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?
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
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
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
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
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)
Tools of Marine Biology – Scientific Method
http://www2.nau.edu/~gaud/bio372/class/behavior/scimeth.gif