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Download Marine Biology and Classification (part 2 of 3)
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Mola mola Sunfish Octopus vulgaris Common Octopus Orcinus orca Killer Whale Aurelia aurita Moon Jellyfish Can you think of any scientific names of marine organisms? Tursiops truncatus Carcharodon carcharias Salmo salar Bottlenose Dolphin Great White Shark Atlantic Salmon Asterias rubens Common Starfish Why is classification important? • Need to be able to tell different organisms apart • Group together similar organisms and identify man made effects on the sea, like pollution • Make sure that we are discussing the same species when communicating with other scientists • Shows relationships between different organisms Fossilised fish found alive, shows evolutionary relationships How can we tell them apart? Quite easy as aren’t too similar and are large and well known How about these? Spot the Difference! Spire Shape and length Ridges on shell Lip of Shell Operculum Shape Need to pick up on subtle differences Same down to genus level Spot the Difference! These are the same species! Some Species show different morphologies (shapes) so we need to understand them, sometimes we need to use genetic techniques Importance of studying Marine Life • All life originated from the sea and still depends on it • Dependence for food (Fish and seafood), tourism and resources (Oil) • New Marine Technologies • Still much of ocean undiscovered Coastal Fish Farm Oceanic fish Farms Shark Skin Technology Activity Who am I game • Think of your favourite marine organism • Draw it and simplify it to its key features • People need to ask yes or no questions based on characteristics • Example Questions • “Does it have legs?” • “Can it swim?” • “Does it breathe air?” Invertebrate Phyla • Lack backbone • Sometimes have a hard outer shell • Many different types of animals in this group • Sometimes bioluminescence in the deep sea for camouflage and communication • Why is it important to study them? • Used for food by larger organisms • Transfer energy from lower trophic levels Make up over 50% of invertebrate ecosystem and support higher forms of life
