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Week of October 12th

by: Iliana Elias

Week of October 12th BIO 106 - M001

Marketplace > Syracuse University > Biology > BIO 106 - M001 > Week of October 12th
Iliana Elias
GPA 3.75
Ocean Life
S. Parks

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Ocean Life
S. Parks
Class Notes
25 ?




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This 4 page Class Notes was uploaded by Iliana Elias on Sunday October 18, 2015. The Class Notes belongs to BIO 106 - M001 at Syracuse University taught by S. Parks in Fall 2015. Since its upload, it has received 31 views. For similar materials see Ocean Life in Biology at Syracuse University.

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Date Created: 10/18/15
MARINE INVERTEBRATES Diversity of life and invertebrates Animalia 0 Arthropods most dominant phyla 0 Range in size from lt10cm to 6 meters Porifera one of the oldest invertebrates 0 Originally thought to be plants 0 Barrel sponges can be gt2m in length can be very colorful 0Cnidarian Giants ancient group 0 Corals anemones jelly sh and hydroids o Coral reefs can be enormous structures 0 Many species of coral 2cm in max diameter for individual polyps 0 Can use tentacles to sting prey and then pull into body for digestion o Larva gt Polyp gt strobili gt free swimming medusa 0Giantjelly sh oLion s manejelly sh o Largest specimen 23m diameter bell 1037m long tentacles 0 lots of tentacles 0 cold water species oneyear life span open ocean and coastal waters 0 Problems with Jelly sh Swim in large groups and clog shing nets I Habitat modi cation creates more polyp habitat water exchange and transport spread jelly sh to new habitats I over shing Coral o Staghorn elkhorn brain 0 Great barrier reef largest coral reef o Coral triangle biodiversity hotspot Life history Strategy rselected species 0 short life span 0 lots of offspring 0 minimal parental care 0 fast growth 0 quotopportunist kselected 0 longer life span 0 few offspring o extensive parental care MARINE INVERTEBRATES 0 slow growth 0 competitor longlived champions 0 red sea urchin o boulder brain coral o Antarctic sponge o Immortal jelly sh Giant worms 0 Phylum Nematoda 0 Round worms 0 Up to 8 meters long Phylum Annelida o Lie in wait predator o Bobbit owrm up to 3m in length 0 segmented Valuable invertebrates Commerciallyimportant 1 Crabs 2 Shrimp 3 Lobster 4ScaHops Phylum Mollusca o Cephalopoda squid o 800 species today 0 most diverse in equatorial waters fewer polar species FISH Diversity of life and shes o All sh fall under animalia lawless Fishes o SUPERCLASS Agnatha 3 major divisions 0 30k species Cartilaginous shes gt 0 CLASS Chondrichthyes o 900 species Bony shes o SUPERCLASS Osteichthyes 58 of shes are marine shes Thermoregulation Warm Cold blooded blooded o Ectotherm Endotherms o Poikilotherm organisms that don t 0 homeotherms Most sh regulate their body temp are cold blooded Jawless Fishes Notochord lateral neural cartilages o Eellike body form 0 No scales 0 Feed by suction using round muscular mouth and rows of teeth Cartilaginous Fishes 0 Don t have a bony skeleton skeletons made of cartilage o Subclasses holocephali chimeras amp Elasmobranchii sharks rays skates Moveable jaws well developed teeth Covered by tiny overlapping rear facing scales rough like sandpaper Paired ns and nares Holocephali 0 Deep water sh 2002600m 0 Lack sharp 39shark like teeth Elasmobranchii 0 Rays and Skates 500 species at and wide feed on clams crabs lay eggs 0 Sharks 400 species Fusiform shape allow them to swim ef ciently in water FISH Multiple rows of teeth that are continuously replaced over lifetime Eat anything from zooplankton to small sh Most sharks give birth to live young Largest shark whale shark Cartilaginous sh ectothermic Hag sh most ancient All sharks are carnivores True


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