week of October 19th
week of October 19th BIO 106 - M001
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This 3 page Class Notes was uploaded by Iliana Elias on Sunday October 25, 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 44 views. For similar materials see Ocean Life in Biology at Syracuse University.
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Date Created: 10/25/15
FISHES Fish diversity 0 Approx 30k species 0 Agnatha 85 species hang shes o Chondrichthyes 900 species Ex Sharks and rays 0 Osteichthyes 25k species Ex Herring salmon parrot sh Adaptations Rockcoral dwelling Coastal rocky bottom 0 Open ocean 0 Deep sea New sh species 0 Over 100 new additions coming from the Census of Marine Life in 2010 0 Estimated 500 remaining unknown species Bony sh 25000 species 96 of all shes o 50 of all vertebrates o 50 marine tails usually homocercal top and bottom same size 0 eel seahorses skeleton o buoyancy 0 most species have a swim bladder gas lled sac for adjusting buoyancy gold sh gup air directly into their swim bladders o compensates for heavy bony skeleton characteristics 0 cycloid or ctenoid scales thin exible overlapping o operculum ap of bony plates covering and protecting gis animals whose body temp adjusts depending on the environment animals that primarily gain heat through the environment Exceptions endothermic and homeothermic Body shape of bony shes 0 streamlined shape 0 Blue n tuna sail sh o atera compression dorsoventrally attened 0 winter ounder elongate eellike FISHES truncate shaped Fish ns 0 pectoral and pelvic side turning braking balance 0 Ex Parrot sh wrasse surgeon sh ying sh dorsal and anal vertical stabilizers 0 caudal tail propulsion Locomotion o mucous covered scales and streamlined to reduce drag 0 most sh swim by rhythmic sidetoside motion of body or tail 0 many sh use pectoral ns for movement Ocean sun sh Mala mola Heaviest bony sh up to 5k lbs and 33m Omnivorous but eat mostly jelly sh Females produce the most eggs of any vertebrate species 0 Up to 300 million eggs at a time 0 Top speed 2pmh Spend time in the mesopelagic zone but seen near surface Reproduction Most bony sh have two sexes Most produce eggs that are fertilized externally Spawn and male will release sperm Sequential hermaphrodites 0 Some species are born one sex but change to another during their lifetime 0 Ex Clown sh female is always dominant nondominant male undifferentiated sh Coloration Camou age to blend in or bright to be noticed Monocolored sh controlled by chromatophores displaying different pigments Countershading light on bottom and dark on top 0 Disruptive coloration stripes bars or spots that break up the outline of the sh and confuse predators 0 Ex Clown trigger sh 0 Warning coloration bright advertise distaste or poisons 0 Ex Mandarin sh lion sh 0 Visual communication 0 Color pattern selfgenerated light 0 Sound 0 Male advertisement for mates produce sounds during breeding season to attract females 0 FRT high pitched pops to communicate with other shes Conservation issues FISHES Over shing Bioaccumulation accumulation of substances such as pesticides