Marine Biology MAR111

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