Marine Biology MAR111 Prof. Nancy Black Lecture: Tu & Th 6:00 – 7:25 pm Lab: Tu 7:40 – 9:40 pm.

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Presentation transcript:

Marine Biology MAR111 Prof. Nancy Black Lecture: Tu & Th 6:00 – 7:25 pm Lab: Tu 7:40 – 9:40 pm

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

Field Trips:  North Shore – Stony Brook Harbor  South Shore – Cupsogue Beach ($5)

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 15 pts each (drop lowest lab) = 135 pts 2 field trips X 50 pts each = 100 pts overall attendance / participation = 15 pts

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

Marine Biology The study of the organisms that live in the sea

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

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” 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

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