Math & Nature  Fish feeding mechanisms ◦ Suction feeding  Goliath grouper Epinephelus itajara  Questions  What fluid velocity can the goliath grouper generate during suction feeding?  How does suction feeding by the goliath grouper compare to other fish?
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Math & Nature   Suction feeding in the goliath grouper ◦ Given  Volume of the goliath grouper feeding mechanism at rest (t0) and at maximum expansion (t1)  Duration of the feeding event (t1 - t0)  Area of the mouth opening at maximum expansion (t1) 4) Find the velocity of water flow into the mouth of
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PLACEMENT HOW? Placement Placement Test Test Transfer Transfer Credits Credits SAT SAT or or ACT ACT Scores Scores High High School School AP AP Scores Scores (Mathematics) (Mathematics) WHAT TO DO? Take Take placement placement test test on on any any campus campus at at Testing Testing Center. Center. Accuplacer Accuplacer MATH MATH can can be be taken taken twice. twice. Students Students who who wish wish higher higher placement placement must must then then “appeal”. “appeal”. Appeal Appeal is is request to take a pencil-and-paper type test on material from the course they request to take a pencil-and-paper type test on material from the course they placed placed into. into. Bring Bring transcript transcript showing showing general general education education math math credits credits from from another another college college or or university university to to CCBC CCBC for for evaluation. evaluation. If If completed completed in in Maryland, Maryland, the the highest highest level level developmental math course, Intermediate Algebra can be used for placement. developmental math course, Intermediate Algebra can be used for placement. Placement Placement by by SAT SAT MATH MATH score score of of 500 500 or or higher higher (or (or by by ACT ACT MATH MATH score score 21 21 or or higher) places the student into an entry-level general education math course higher) places the student into an entry-level general education math course (MATH (MATH 111, 111, 125, 125, 131/2/3, 131/2/3, 135, 135, 163). 163). For For higher higher placement, placement, the the student student must must take take Accuplacer MATH. MATH. Accuplacer Students Students with with documentation documentation of of AP AP math math scores scores of of 3, 3, 4, 4, or or 5 5 from from high high school school can can be awarded college credit and placement according to this chart. be awarded college credit and placement according to this chart.
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Math & Nature  Suction feeding in the goliath grouper ◦ Given  Dimensions of cone B at maximum expansion (t1) 3) Find the area of the goliath grouper mouth at maximum expansion (t1).  A. Collins mouth
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Math & Nature  Goliath grouper model ◦ Objective  Determine the velocity of water flow into the mouth ◦ Procedure  Determine the area of the mouth at maximum expansion (t1)  t1 = time at maximum expansion A A B B
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Core Math MATH 95 MATH 96 MATH 126 MATH 176 MATH 96 MATH 126 MATH 176 MATH 126E MATH 176 Recommendation: If you start in Math 95 or Math 96 take summer classes to stay on track! MATH 126 MATH 176 MATH 181 or Math 182 will meet the College of Business math requirement. MATH 176 Pg. 12 of your Advising Manual
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Rounding Methods Examples Math.ceil(2.1) returns 3.0 Math.ceil(2.0) returns 2.0 Math.ceil(-2.0) returns –2.0 Math.ceil(-2.1) returns -2.0 Math.floor(2.1) returns 2.0 Math.floor(2.0) returns 2.0 Math.floor(-2.0) returns –2.0 Math.floor(-2.1) returns -3.0 Math.rint(2.1) returns 2.0 Math.rint(2.0) returns 2.0 Math.rint(-2.0) returns –2.0 Math.rint(-2.1) returns -2.0 Math.rint(2.5) returns 2.0 Math.rint(-2.5) returns -2.0 Math.round(2.6f) returns 3 Math.round(2.0) returns 2 Math.round(-2.0f) returns -2 Math.round(-2.6) returns -3 8
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Math & Nature  Goliath grouper model ◦ Objective  Determine the velocity of water flow into the mouth ◦ Procedure  Determine the volume of components A and B at rest (t0) and at maximum expansion (t1)  t0 = time at rest  t1 = time at maximum expansion A B  Determine the volume change during feeding A B
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Stocks “Subject to Overfishing” (40) – as of September 30, 2010 New England: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Cod – Gulf of Maine Cod – Georges Bank Yellowtail flounder – Southern New England/Middle Atlantic Yellowtail flounder – Cape Cod/Gulf of Maine White Hake Winter Flounder – Georges Bank Winter Flounder – Southern New England/Middle Atlantic Windowpane - Gulf of Maine / Georges Bank Windowpane - Southern New England / Mid-Atlantic Witch Flounder - Northwestern Atlantic Coast Highly Migratory Species: Pacific: 1.Yellowfin Tuna – Eastern Pacific2 1. Blue Marlin – Atlantic2 2. White Marlin – Atlantic2 3. Sailfish – West Atlantic2 4. Albacore – North Atlantic2 5. Bluefin Tuna – West Atlantic2 6. Sandbar Shark 7. Dusky Shark 8. Blacknose Shark 9. Shortfin Mako - Atlantic Pacific and Western Pacific 1. Bigeye Tuna – Pacific2 2. Pacific bluefin tuna – Pacific2 South Atlantic: Gulf of Mexico: 1. Red Snapper 2. Greater Amberjack 3. Gag 4. Gray Triggerfish 1. Indicates non-FSSI stock U.S. Department of Commerce National Oceanic and Atmospheric Administration National Marine Fisheries Service Office of Sustainable Fisheries 2. Stock is fished by U.S. and International fleets. Blue = Also Overfished 1. Vermilion Snapper 2. Red Snapper 3. Snowy Grouper 4. Tilefish 5. Red Grouper 6. Black Sea Bass 7. Gag 8. Speckled Hind 9. Warsaw Grouper Caribbean: 1. Snapper Unit 1 2. Grouper Unit 1 3. Grouper Unit 4 4. Queen Conch 5. Parrotfishes1 11
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Overfished Stocks (47) – as of September 30, 2010 New England: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. North Pacific: 1. Blue King Crab – Pribilof Islands Atlantic Cod – Georges Bank Yellowtail Flounder – Georges Bank Yellowtail Flounder – Southern New England/Middle Atlantic Yellowtail Flounder – Cape Cod/Gulf of Maine White Hake Winter Flounder - Southern New England / Mid-Atlantic Ocean Pout Atlantic Halibut Windowpane - Gulf of Maine / Georges Bank Winter flounder - Georges Bank Witch flounder - Northwestern Atlantic Coast Smooth Skate 14. Thorny Skate Atlantic Salmon1 15. Atlantic Wolffish - Gulf of Maine / Georges Bank1 Highly Migratory Species: 1. Blue Marlin – Atlantic2 2. White Marlin – Atlantic2 3. Albacore – North Atlantic2 4. Bluefin Tuna – West Atlantic2 5. Sandbar Shark Mid-Atlantic: 6. Porbeagle Shark 1. Butterfish (Atlantic) 7. Dusky Shark 8. Blacknose Shark ific: Cowcod Yelloweye Rockfish Canary rockfish - Pacific Coast Petrale sole – Pacific Coast Coho salmon - Washington Coast: Queets1 Coho salmon - Washington Coast: Western Strait of Juan de Fuca1 Chinook salmon - California Central Valley: Sacramento (fall)1 Gulf of Mexico: Western Pacific 3/27/19 1. Seamount Groundfish Complex – Hancock Seamount U.S. Department of Commerce National Oceanic and Atmospheric Administration South Atlantic: 1. Red Snapper 2. Greater Amberjack 3. Gray Triggerfish 4. Gag 1. Indicates non-FSSI stock 2. Stock is fished by U.S. and International fleets. 1. Pink Shrimp 2. Snowy Grouper 3. Black Sea Bass 4. Red Porgy 5. Red Snapper 6. Red Grouper Caribbean: 1. Grouper Unit 1 2. Grouper Unit 2 3. Grouper Unit 4 4. Queen Conch National Marine Fisheries Service Office of Sustainable Fisheries 13
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Math & Nature   Goliath grouper model ◦ Objective  Determine the velocity of water flow into the mouth ◦ Procedure A A B B
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