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Pg. 56 RTW: Name one abiotic and one biotic thing in the room. Objective: I will be able to describe the abiotic factors and label the following areas of the marine environment: ▫Photic and aphotic ▫Benthic (littoral, shelf, bathyal, abyssal, hadal) ▫Pelagic (oceanic and nertic) Agenda ▫Layers of the Ocean Project Begin research & start putting information on your poster Homework ▫None Monday, November 9 th
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An ecosystem includes both biotic and abiotic factors. Biotic factors are living things. plants animals fungi bacteria plants
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Abiotic factors are nonliving things. moisture temperature wind sunlight soil moisture sunlight
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Zones of the Ocean You will be assigned into one of the following ocean zones: 1.Supralittoral 2.Littoral 3.Sublittoral 4.Oceanic Photic 5.Oceanic Dysphotic 6.Neritic 7.Abyssal (Benthic) 8.Group’s choice
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You will research: 1.What the zone encompasses ▫Where it is, depth, etc. 2.Why it is named this ▫Definition and any Greek or Latin roots 3.Abiotic factors in your zone ▫Environmental factors 4.Biotic factors in your zone ▫Living factors 5.Adaptations for this zone ▫How have organisms adapted to the environment?
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What your poster should look like: ______ Zone Information: This zone encompasses _____ part(s) of the ocean This zone is named this after the Greek word ____ which means ____ Organisms need to be adapted in these ways to survive in this zone… Biotic Factors:Abiotic Factors: Parrot fish: biotic Blue-ringed octopus: biotic Light: abiotic
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RTW: How does light (abiotic) affect organisms (biotic)? Objective: I will be able to describe the abiotic factors and label the following areas of the marine environment: ▫Photic and aphotic ▫Benthic (littoral, shelf, bathyal, abyssal, hadal) ▫Pelagic (oceanic and nertic) Agenda ▫Layers of the Ocean Project Finish putting information on your poster Gallery Walk (pg. 57) Homework ▫None Tuesday, November 10 th
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You will research: 1.What the zone encompasses ▫Where it is, depth, etc. 2.Why it is named this ▫Definition and any Greek or Latin roots 3.Abiotic factors in your zone ▫Environmental factors 4.Biotic factors in your zone ▫Living factors 5.Adaptations for this zone ▫How have organisms adapted to the environment?
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What your poster should look like: ______ Zone Information: This zone encompasses _____ part(s) of the ocean This zone is named this after the Greek word ____ which means ____ Organisms need to be adapted in these ways to survive in this zone… Biotic Factors:Abiotic Factors: Parrot fish: biotic Blue-ringed octopus: biotic Light: abiotic
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Prefixes and Suffixes (pg. 57) Supra= above Sub= below Littoral= pertaining to the shore Photic= well lit Aphotic= absence of light Oceanic= open sea Benthic= bottom of the ocean
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RTW: Which ocean layer is your favorite? Why? Objective: I will be able to classify and give examples of organisms as planktonic (phytoplankton and zooplankton), nektonic, or benthic. Agenda ▫Plankton Notes (pg. 59) ▫Plankton Lab (pg. 58) Homework ▫None Thursday, November 12 th
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Plankton Plankton = Free-floating organisms (drifters) ▫Most abundant organisms in the ocean. ▫Bottom of the food chain ▫Two types: phytoplankton & zooplankton
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Why do you think plankton are important to the ocean’s ecosystems?
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Phytoplankton 1) Phytoplankton = autotrophic (photosynthesis provides their energy); Always located near the surface
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Types of Phytoplankton Diatoms: ▫Single celled protists (kingdom) ▫“pill box” structure made of SiO 2 (silicon dioxide) with the living organism inside ▫Unique designs ▫Reproduce by dividing in half ▫We use these everyday!!! How?
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Diatoms are responsible for causing algae blooms and changing the turbidity, dissolved oxygen and pH of the water. Algae blooms are both human induced and naturally occurring.
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Types of Phytoplankton Dinoflagellates: class Dinophycea ▫Single celled protist (kingdom) ▫Have two flagella ▫Red tide is caused by an algae (dinoflagellate) bloom. Plankton releases toxins into water. Responsible for massive death/infection in fish and irritation to humans. ▫Some are bioluminescent = light the wakes of waves ▫Some are non-mobile and SYMBIONTS with other animals (corals, giant clams, sea anemones) = ZOOXANTHELLAE
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Red Tide
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Zooplankton 2) Zooplankton = heterotrophic (must obtain their food from outside sources) ▫ located beneath phytoplankton, vertically migrate at night. ▫More diverse than phytoplankton. ▫Significance = provides a link between the phytoplankton, producers and the larger fish below.
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Types of Zooplankton Copepods: Kingdom = Animalia ▫phylum-Arthropoda, ▫Most valuable zooplankton ▫Use small jerky movements ▫Use antennae to slow sinking ▫Filter feeders of phytoplankton
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Copepods link phytoplankton to the rest of the food chain. Fastest animal in the world.
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So why should I care… Without plankton the entire marine ecosystem would collapse! Primary Productivity ▫95% in the ocean is from phytoplankton ▫Other 5% is from plants and chemosynthesis.
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Pg. 56 S.T.A.R. 1.What are the two types of plankton? 2.What type of plankton produce their own food? 3.________ and _______ are types of phytoplankton.
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Pg. 58 Plankton Lab You will EACH need a sheet of white paper from me. Fold your paper so it has 4 squares. Assignment: Groups of 2 Look at your plankton sample and find 2 phytoplankton and 2 zooplankton ▫Draw these and label them in your squares. (one in each square) Have fun looking at the different types of plankton in your sample!!!
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Pg. 56 RTW: What is the difference between zoo- and phytoplankton? Objective: I will be able to classify and give examples of organisms as planktonic (phytoplankton and zooplankton), nektonic, or benthic. Agenda ▫Study Guide Homework ▫Unit 4 Test and notebook check on Tuesday, November 17 th Friday, November 13 th
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