Marine Biology MAR111

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Marine BiologyMAR111

• Prof. Nancy Black
• Lecture Tu Th 600 725 pm
• Lab Tu 740 940 pm

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• 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)

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Grading 1000 points total Lecture 60 3
lecture exams (200 points each) drop lowest
exam grade 400 points cumulative final exam
200 points Lab 40 mid-term 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
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• 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

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Printing Powerpoint Slides
2-3 per vertical page (3 gives lines for notes)
4 per horizontal page write in margins
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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/watercolum
n/copepod/images/full/calanus_marshallae.jpg
http//www.sfos.uaf.edu/research/arcdiv/seabottom/
asteroids/images/full/ctenodiscus-crispatus.jpg
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Marine Biology

• A subset of Biology
• Has subdisciplines
• Taxonomy
• Ecology
• Behavior
• Physiology
• Cellular and molecular biology
• Evolution

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Marine Biology

• A subset of Oceanography

• Biological

• Chemical

• Physical

• Geological

http//community.webshots.com/photo/10983856090294
48148TPhhYc
http//www.webshots.com/g/33/628-sh/12378.html
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Marine Biology

• Why is it important?
• 71 of the earths surface is water
• Oxygen, global ecosystem
• Disease, attacks, damage
• Food, medicine, raw materials
• Recreation, tourism
• (20 trillion/yr!)

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Tools of Marine Biology - Then
Research Ships
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Tools of Marine Biology - Now
Research Ships
http//www.sheddheads.org/do/viewjsessionid4FF1A
C1047FEBC828EBA32442CE5BB69?id139
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Tools of Marine Biology - Now
Research Ships
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Tools of Marine Biology - Now
Submersibles
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Tools of Marine Biology - Now
SCUBA, Underwater habitats
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Tools of Marine Biology - Now
Crittercam, satellite tracking
http//www.riverheadfoundation.org/research/conten
t.asp?codeSarge
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Tools of Marine Biology - Now
Satellite remote sensing
http//microbewiki.kenyon.edu/images/9/94/Bloom_su
mmer_off_cornwall.jpg
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Tools of Marine Biology - Now
Sampling devices
http//www.gma.org/onlocation/mocness.html
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Tools of Marine Biology - Now
Laboratory experiments
http//alpha1.msrc.sunysb.edu/flaxpond/Images1/Mvc
-008f.jpg
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Tools of Marine Biology Scientific Method

• Observe, describe
• Coral reef

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Tools of Marine Biology Scientific Method

• Observe, describe
• Stony corals
• Animal polyps have algae cells inside

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Tools of Marine Biology Scientific Method

• Observe, describe
• Corals once green and brown are now white
• Water temperatures were 30C or more for several
  weeks

http//www.york.ac.uk/depts/biol/units/symbiosis/i
mages/coralbleach.jpg
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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?

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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
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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/72ros
scoralbleachingtanks.jpg
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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

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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

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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, thats a hypothesis)

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Tools of Marine Biology Scientific Method
http//www2.nau.edu/gaud/bio372/class/behavior/sc
imeth.gif