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Distribution

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Approx. 50,000 species of vertebrates,Approx. 25,988 species of fish: 483families and 57 orders

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Approx. 58 !abo"t #3,$30% of all

species of bon& fishes live in marineenvironmentsApprox. 42 !abo"t 9,870% of fishspecies live in fresh'ater environments

(nl& abo"t 3 of earth)s 'ater isfresh'ater

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Distribution

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*o"nd all over the +lobeertical distrib"tion - ocean ab&ss to

hi+h altit"de mo"ntain streams !5200 m inhot sprin+s in ibet/ 38#2 m a1e

iticaca to 8000 m deep !c"s1 eels3rot"lotaenia sp .% - spans almost #3 1m

Facts....

cusk eels Brotulotaenia sp .

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emperat"re - h&siolo+icall& cope 'ithhot soda la1es !43 o % to s"b-free6in+'aters of Antarctica !-2 o %. o' do

the& s"rvive Antifree6e in blood.t"nnin+ ran+e of morpholo+ies andadaptations: adaptation vs. ph&lo+enetic

constraint

Facts....

http://www.powerpointstyles.com/http://www.powerpointstyles.com/

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ast and diverse assembla+e of or+anisms -consider variation in life histor& traits:

*ish pop"lations var& in si6e from 400 -#000 individ"als ! 5&prinodon diabolis - the

devil)s hole p"pfish act"all& #25%, to #0to the #5 !for some mesopela+ic stomiatids- 5&clothone spp . no other vertebrate

pop"lations approach this n"mber%.

Facts....

http://www.powerpointstyles.com/http://www.powerpointstyles.com/

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Facts....

Devil's Hole Pupfish(Cyprinodon diabolis )

Messopelagic to!atidae(Cyclothone spp )

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Powerpoint Templates4/26/16 iktiol - ch 3 -tamu 4-5 8

ast and diverse assembla+e of or+anisms -consider variation in life histor& traits:

Ad"lt bod& si6e: mall as 7.5 mm !tropical+obies, c&prinodonts, and c&prinids vie for

title of smallest livin+ vertebrate%.ar+est fish is hale shar1 ! ;hincodon % -

reaches len+ths of "p to #2 m, (ceans"nfish !

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Facts....Biggest shark("hincodon typus )

unfish

(Mola !ola )

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Powerpoint Templates4/26/16 iktiol - ch 3 -tamu 4-5 10

ast and diverse assembla+e of or+anisms -consider variation in life histor& traits:

ife span ran+es from less than one &ear!ann"al fishes% to #50 &ears !halib"t, carp%.

Facts....

http://www.powerpointstyles.com/http://www.powerpointstyles.com/

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Powerpoint Templates4/26/16 iktiol - ch 3 -tamu 4-5 11

acific halib"t !7ippo+loss"s sp.%

Facts....

http://www.powerpointstyles.com/http://www.powerpointstyles.com/

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Powerpoint Templates4/26/16 iktiol - ch 3 -tamu 4-5 12

acific halib"t !7ippo+loss"s sp.%

Facts....

http://www.powerpointstyles.com/http://www.powerpointstyles.com/

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Powerpoint Templates4/26/16 iktiol - ch 3 -tamu 4-5 13

ast and diverse assembla+e of or+anisms -consider variation in life histor& traits:

;eprod"ction = open 'ater spa'nin+/spa'nin+ in nests, tr"e viviparit&,ovoviviparit&, or internal fertili6ation

follo'ed b& e++ deposition.

ex chan+es, parental care etc.

Facts....

http://www.powerpointstyles.com/http://www.powerpointstyles.com/

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Powerpoint Templates4/26/16 iktiol - ch 3 -tamu 4-5 14

ast and diverse assembla+e of or+anisms -consider variation in life histor& traits:

econdar& sex"al dimorphism absent inherrin+s and anchovies/ hi+hl& developed inceratoid An+lerfish

arental care ran+es from non-existent tohi+hl& developed.

Facts....

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Powerpoint Templates4/26/16 iktiol - ch 3 -tamu 4-5 15

ast and diverse assembla+e of or+anisms -consider variation in life histor& traits:

*ec"ndit& = n"mber of e++s shed in a sin+lespa'nin+ varies

*rom one ! ome"r"s sp.%

"ndreds of tho"sands in fish li1e cod!man& e++s fail to be fertili6ed%.

Facts....

http://www.powerpointstyles.com/http://www.powerpointstyles.com/

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Powerpoint Templates4/26/16 iktiol - ch 3 -tamu 4-5 16

ast and diverse assembla+e of or+anisms -consider variation in life histor& traits:

>ndivid"als ma& have onads of one sex onl&or of both sexes.ermaphroditism ma& be protandro"s,

proto+&no"s or sim"ltaneo"s. At least onespecies ! ;iv"l"s marmorat"s % capable of

fertili6in+ o'n e++s.

Facts....

http://www.powerpointstyles.com/http://www.powerpointstyles.com/

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Facts....Mangrove rivulus("ivulus !ar!oratus )

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Powerpoint Templates4/26/16 iktiol - ch 3 -tamu 4-5 19

ast and diverse assembla+e of or+anisms -consider variation in life histor& traits:

ome &o"n+ miniat"re replicas of ad"lts!e.+. viviparo"s s"rf perches%,(thers - &o"n+ ver& different existence

and are completel& different in appearance!e.+. ome pela+ic larvae of flatfishes%.

Facts....

http://www.powerpointstyles.com/http://www.powerpointstyles.com/

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Fish Shapes: Form is Function4/26/16 iktiol - ch 3 -tamu 4-5 20

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Fish ar! in morpholo"icalcross-section #rasticall!$

%&': Form ( )unction"o han# in han# here$

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