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BIOS Spring Courses
Immerse Yourself in Marine Science

Coral Reef Ecology
Instructor: Samantha de Putron, Ph.D.

The Coral Reef Ecology course at the Bermuda Institute of Ocean Sciences is an intensive integrated introduction comprised of lectures, required reading, laboratory exercises and field surveys. The lectures cover a broad range of relevant topics in coral reef ecology that are supplemented by readings from the primary literature with attention given to active areas of research.

Grading
Problem set 5%
2 lab reports 25% (1st lab report is 10%, 2nd lab report is 15%)
Exams 40% (Mid Term 15%) (Final Exam 25%)
Oral Presentation/ analysis of field and lab work 30%
Abstract (5%), reference list (2%)
Science content (5%), Powerpoint use (3%), Presentation skills (3%)
Participation (during the course, 10%; during presentations, 2%)

We meet for lectures in the Sunderman Room and your lab is the Scott Lab.

The lab work is focused on training in practical techniques:

  • separation of coral tissue from skeleton
  • fractionation by centrifugation
  • enumeration of zooxanthellae with a haemocytometer
  • chlorophyll analysis
  • determination of coral surface area
  • demonstration of the use of respirometers and light sensors to construct Production/Irradiance curves for corals
  • coral growth determination using a buoyant weighing technique
  • measurement of coral feeding

Various field techniques and subsequent lab analyses are used repetitively at different sites so that each student has the opportunity to become familiar with the following methods:

  • video-taping of reef transects to assess community structure
  • quantification of reef fish community structure using a visual census method
  • quadrat sampling of reef algae, sorting, identification and dry weight biomass estimation
  • quadrat sampling and measurement of juvenile corals to construct size/frequency curves
  • quantification of parrotfish and surgeon fish feeding rates and social interactions

The laboratory and field work are synthesized either in written laboratory reports or as a final oral presentation (which also requires a 200 word abstract and a list of 4-6 references). Both are based on a typical format for presenting scientific results to an audience and so are designed to provide experience in communicating science.

WEEK 1
    Monday
    BIOS orientation

    Wednesday
    0900 - Lecture 1: Coral structure and anatomy
    1030 - Lecture 2: Coral symbiosis with zooxanthellae
    1300 - BOAT: Check out dive

WEEK 2
    Monday
    0900 - Lecture 3: Coral zonation and distribution
    1030 - Lecture 4: Coral community structure of Bermuda's reefs
    Explanation of the course field and lab work
    1300 - LAB: Zooxanthellae counting, chlorophyll content
    Begin coral buoyant weight (T0)
    Coral and fish identification
    Preparation for patch reef coral community structure field trip

    Tuesday: read Chl values

    Wednesday
    0800 - BOAT: Reef survey at a patch reef in the lagoon
    1300 - LAB: Reef survey data analysis - algae sorting, video transects, enter fish data Surface areas of buoyant weight corals (T0)
    Thursday/ Friday: weigh algae samples

WEEK 3
    Monday
    0900 - Lecture 5: Coral growth & calcification
    1030 - Lecture 6: Factors affecting primary production
    1300 - PI demonstration Drawing a PI curve (computer room tutorial)
    1500 - LAB: Coral buoyant weight (T1)
    Finish off patch reef survey data analysis Coral and fish identification
    Preparation for rim reef coral community structure field trip

    Wednesday
    0800 - BOAT: Reef survey of a rim reef
    1300 - LAB: Reef survey data analysis- algae sorting, video transects, enter fish data
    Coral ID 'fun' quiz
    Thursday/ Friday: weigh algae samples

WEEK 4
    Monday
    P/I Problem Set due
    0900 - MID TERM EXAM
    1100 - LAB: Prepare for ship grounding field trip
    1300 - BOAT: Juvenile coral surveys at a ship grounding site

    Wednesday
    0900 - Lecture 7: Space creation- summary of physical and biological perturbations
    1000 - Lecture 8: Herbivory on coral reefs
    1100 - Lecture 9: Predation & filter feeding
    1300 - LAB: Feeding experiment
    Coral buoyant weight (T2)
    Discuss feeding experiment lab report
    Enter ship grounding data
    Preparation for terrace reef coral community structure field trip

WEEK 5
    Monday
    0800 - BOAT: Survey of a Terrace Reef
    1300 - LAB: Reef survey data analysis- algae sorting, video transects, enter fish data Tuesday/ Wednesday: weigh algae samples

    Wednesday
    Feeding experiment lab report due
    0900 - Lecture 10: Coral reproduction
    1030 - Lecture 11: Nutrients on coral reefs
    1300 - LAB: Final Buoyant weight (T3)
    Zoox counts, chl and surface area of buoyant weight corals
    Discuss corals and irradiance lab data- buoy ant weight, chl and zoox
    Thursday: Read chl values

WEEK 6
    Monday
    0900 - Lecture 12: Coral bleaching and disease
    1030 - Lecture 13: Reef fish ecology
    1300 - Lecture 14:Human Impacts and climate change
    1500 - LAB: Finish off any remaining reef survey analysis
    Work on buoyant weight and irradiance lab report
    Prepare for fish grazing study

    Wednesday
    Buoyant weight and irradiance lab report due
    0800 - BOAT TRIP: fish grazing study
    1300 - Lecture 15: Natural Resource Management of Reefs
    1430 - Enter and discuss fish grazing data
    Assign and discuss presentation topics
    Individual tutorials in groups to work on presentation data

WEEK 7
    Monday
    0900 - FINAL EXAM
    1300 - BOAT: Deep dive/ wreck dive

    Wednesday
    1000 - PRESENTATIONS
    Hand in abstracts and reference lists