Presentation on theme: "Marine Biology Michael Slemp"— Presentation transcript:
1 Marine Biology Michael Slemp Chapter 1Marine BiologyMichael Slemp
2 The Northern Elephant Seal Named “elephant” because the nose of and adult male resembles an elephant’s trunkFound in the North PacificDuring breeding they live on beaches, rest of the year off shoreYoung pups nurse about 28 days and gain about 10 pounds a dayAdult male may reach 13 feetCan stay under water for up to 2 hours at a timeEat deep-water, bottom-dwelling marine animals such as ratfish, swell sharks, spiny dogfish, eels, rockfish, and squidwere hunted to the brink of extinction, primarily for their blubber, which was used for lamp oilFor more info see links in Chapter 1 “Northern Elephant Seals”
3 Who are scientists?Someone who uses the process of science to find answers about how and why things work in the world and in the observable universe.Science is not just factsScience is the way we analyze the facts
4 What we know of the ocean? We know very little in the big scheme of thingsThere are depths that we are still unable to measureLife that we have not seen, species that have yet to be discoveredResources that are still unknownBathynomus giganteusFor more info see links in Chapter 1 “Deep sea creatures”
5 How does oceans effect our life? Oceans influence the weather and world climate patterns which dictate how warm, cold, wet, or dry a region will beOceans determines where organisms liveOceans provide important resources (food, oxygen, and natural resources such as oil).
6 Human effect on the ocean Commercial fishing has severely depleted many types of fishPollution has deteriorated many marine environments.Coral reefs and mangroves are dying off in record numbers
7 Activity Complete the activity on page 1-6 Go step by step Answer questions 1-7 under Reflecting on your learningWrite out the questionYour answers must be in complete sentences
8 What is Marine science?Process of discovering facts, processes, and unifying principles that explain the nature of the oceans and their associated life forms.Oceanography is the science of recording and describing the ocean’s contents and processes
9 Four main branches of Oceanography Biological oceanography (marine biology) studies the diversity of life in the ocean and the oceans role as their habitat
10 Four main branches of Oceanography Chemical oceanography studies the chemistry of the seawater. Examines chemical changes brought about by nature and people.
11 Four main branches of Oceanography Geological oceanography is the study of the geology of the ocean. This examines the composition of marine sediments and rocks. Studies underwater volcanoes, seabed movement, earthquakesMolokini crater in HawaiiFor more info see links in Chapter 1 “Underwater volcanoes”
12 Four main branches of Oceanography Physical Oceanography is the study of physics in the marine environment. This examines water movement such as waves, currents and tides.
13 Integrating SciencesStudying marine science combines traditional science concepts to marine science conceptsIntegrated different fields of science allows an individual to understand that many branches of science are interconnected.Marine science works closely with the physical sciences (chemistry/ physics), life sciences (biology, physiology and ecology) and Earth and space science ( study of the physical earth, and the universe)
14 What four study areas does marine science involve besides the traditional sciences? Science as inquiry- way to solve problemsScience and technology- how science and technology work hand in hand with each otherScience in personal and social perspectives- how science affects you and societyHistorical nature of science- how science evolved as a discipline
15 What is SCIENCE?A body of knowledge and organized method used to gain knowledge about the observable universe.
16 Is a material system that produces results TechnologyIs a material system that produces resultsWhat are some examples of technology?How do we come up with technology?What are some early examples of technology?
17 Technology? Is all technology good? What are some downsides or negative effects of technology?If you were top scientists how would you argue for technology that negatively affects nature? Now argue against current technology that affects nature negatively.
18 What can we do about the negative effects of technology? 1. Disregard (ignore) the effects of technologyhumans go extinct2. Dismiss the effects of technology (not agree with scientists)3. Prioritize developing technologies that positively affect the environmentwe live
19 SCIENTIFIC METHOD Identify the problem ( or questions) This should be review for everyone. Write the 5 steps below. If you need to review these 5 steps re-read pages 1-24 through 1-28 for a detailed explanation of eachIdentify the problem ( or questions)Make a hypothesis (educated guess)Test the hypothesisInterpret and analyze the resultsReport results, procedures and conclusions
20 Inductive and Deductive Reasoning Inductive/ deductive reasoning should take place during step 2 of the scientific methodUse inductive reasoning to propose a process that explains the facts you observedUse deductive reasoning to propose what you would observe should a known process take place
21 Inductive Reasoning (FIP) Observe a fact (F)Inductive (I) reasoningPropose a process (P) that explains the factBubbles in the waterInductive reasoningScuba diver in a water
22 Deductive Reasoning (opposite of Inductive reasoning) Observe known processDeductive reasoningPropose what should be observedScuba diver in the waterDeductive reasoningBubbles in the water
23 The Progress of Science Always changingRemember some scientist thought the earth was flat and we just fell off the edge if we got too close to the edgeNot all theories are correctScientist thought earth was the center of the universe for centuries
24 The Progress of Science Scientists need to stay current on advances and current theoriesStaying current can help society come to understand either positive or negative effectsExample would be human cloningTwins are human clones,Not all what the media writes is the most current based on the scientific theories currently presented
25 ACTIVITY Complete the activity on page 1-28 Answer question 1-5 under Reflecting on Our learning.Write out questionAnswer must be in complete sentence