Fish (and chips)Fish (and chips)

Dimitar Donev, Emil YaramovDimitar Donev, Emil Yaramov

(and Daniel Yanev)(and Daniel Yanev)

Fish F’ctsFish F’cts

Chordata Phylum and two main classes:Chordata Phylum and two main classes: -Chondrichthyes- cartilage fish such as -Chondrichthyes- cartilage fish such as

sharkssharks -Actinopterygii- ray- finned fish (-Actinopterygii- ray- finned fish (сомсом)(5))(5) Very specialized in:Very specialized in: SwimmingSwimming Breathing under waterBreathing under water Bilateral symmetry (3)Bilateral symmetry (3)

They really can!

Fish SexFish Sex

Most fish are oviparous(8)Most fish are oviparous(8) The mothers produce The mothers produce

thousands of eggsthousands of eggs Then the males fertilize Then the males fertilize

themthem The diameter of the eggs is The diameter of the eggs is

about 1mm(3)about 1mm(3)

Fish movementFish movement

Twist their body into an S-Twist their body into an S-shape motionshape motion

This causes a backward This causes a backward force on the water that force on the water that moves them forward(3)moves them forward(3)

Most fish have a swim Most fish have a swim bladder so that they don’t bladder so that they don’t go up or down go up or down constantly(7)constantly(7)

Fish BreathingFish Breathing

Extract oxygen from the waterExtract oxygen from the water This happens in the gills(3)This happens in the gills(3) Oxygen is diffused from the water to the Oxygen is diffused from the water to the

bloodstream through the gill filamentsbloodstream through the gill filaments

Breathing EfficiencyBreathing Efficiency

Water has about 30 times less oxygen Water has about 30 times less oxygen than the same amount of airthan the same amount of air

Fish absorb 80% of this oxygenFish absorb 80% of this oxygen The gills provide large are for gas The gills provide large are for gas

exchangeexchange The oxygen passes through a thin The oxygen passes through a thin

membranemembrane Water travels in one direction only(4)Water travels in one direction only(4)

Fish #1Fish #1

Silurus Glanis Silurus Glanis Lives in dams and Lives in dams and

lakeslakes MysteriousMysterious Small swim bladder Small swim bladder

and bony skull-> sinkand bony skull-> sink Mustache!(2)Mustache!(2) Epic win guy

Fish #2Fish #2

Carcharodon Carcharodon CarchariasCarcharias

Many teethMany teeth Enough evolution!Enough evolution! Active fish…Active fish… BigBig Scan!!!(6)Scan!!!(6)

Fish #3Fish #3

SprattusSprattus Eaten with beer in Eaten with beer in

Bulgarian cuisineBulgarian cuisine Lives near the Lives near the

shore(9)shore(9)

Parjena Caca

Fish and HumiesFish and Humies

Food (most for us): oil Food (most for us): oil and meatand meat

Destruction of Destruction of habitatshabitats

Cultures…Cultures… They will be there…They will be there…

(3)(3)

Fishy (fun) factsFishy (fun) facts

How is a big group of fish called?-SchoolHow is a big group of fish called?-School How old is the oldest goldfish?-43 yearsHow old is the oldest goldfish?-43 years What will happen if you keep a goldfish in What will happen if you keep a goldfish in

the dark?- it will turn whitethe dark?- it will turn white How small is the smallest fish?- 1/4 inchHow small is the smallest fish?- 1/4 inch What can’t fish do with their eyes that What can’t fish do with their eyes that

humans can?- Blinkhumans can?- Blink

Weird FishWeird Fish 400 million years ago400 million years ago Dunkleosteus terrelliDunkleosteus terrelli 11 meters11 meters 80000 pounds force 80000 pounds force

of the biteof the bite Bites for 1/15 of the Bites for 1/15 of the

secondsecond Biggest fish?... noBiggest fish?... no

Fish vocabFish vocab Bilateral symmetry- symmetrical along two perpendicular planesBilateral symmetry- symmetrical along two perpendicular planes Operculum-bony flap that protects their finsOperculum-bony flap that protects their fins Swim bladder- air sac that controls their buoyancySwim bladder- air sac that controls their buoyancy Gills- structures that allow fish to breath under waterGills- structures that allow fish to breath under water Active fish- fish that are feeding heavily and striking aggressivelyActive fish- fish that are feeding heavily and striking aggressively Spiny Dorsal Fin- the upper, developed fin on the back of a fish (fin is the Spiny Dorsal Fin- the upper, developed fin on the back of a fish (fin is the

thin structure that fish use to move)thin structure that fish use to move) Olfactory nerve-part of nervous system of a fish, close the their nostrilsOlfactory nerve-part of nervous system of a fish, close the their nostrils Oviparous- when the egg develops outside the mothers’ s bodyOviparous- when the egg develops outside the mothers’ s body Cartilage fish- Chondrichthyes(sharks, rays, chimaeras)Cartilage fish- Chondrichthyes(sharks, rays, chimaeras)

Fish Cited 1.“Age of Animals.” Universe-Review. N.p., n.d. Web. 30 Mar. 2010. <http://universe-

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isu.tripod.com/ id3.html>. 5.“Fish Taxonomy.” Washington.edu. N.p., n.d. Web. 30 Mar. 2010.

<http://www.washington.edu/ burkemuseum/ collections/ ichthyology/ FishKey/ taxon.html>. 6.“Great white shark.” Wikipedia.org. N.p., n.d. Web. 30 Mar. 2010.

<http://en.wikipedia.org/ wiki/ Great_white_shark>. 7.“How do fish rise and sink in the water?” HowStuffWorks.com. N.p., n.d. Web. 30 Mar.

2010. <http://animals.howstuffworks.com/ fish/ question629.htm>. 8.“Oviparious Fish.” PetCareEducation.com. N.p., n.d. Web. 30 Mar. 2010.

<http://petcareeducation.com/ fish/ fish-reproduction/>. 9.“Sprattus.” Wikipedia.org. N.p., n.d. Web. 30 Mar. 2010. <http://en.wikipedia.org/ wiki/

Sprat>. 10.“Did You Know? Fun Facts About Fish.” ButlerWebs.com. N.p., n.d. Web. 30 Mar.

2010. <http://www.butlerwebs.com/ animals/ fish.htm>. 11.“Fun Facts about Fish.” HubPages.com. N.p., n.d. Web. 30 Mar. 2010.

<http://hubpages.com/ hub/ Fun-Facts-about-Fish>.

Fish Pictures http://www.swordfishingcentral.com/albums/Great-White-Sharks/gre

at_white_shark_jumping.jpg http://thundafunda.com/33/underwater-animals-fish/Yipes!%20Great

%20White%20Shark,%20South%20Australia%20pictures%20underwater%20photos.jpg

http://www.lochnessinvestigation.com/Catfish-Po.JPG http://imagesfrombulgaria.com/d/55169-5/Parjena_Caca.JPG http://esoriano.files.wordpress.com/2007/05/dunkleosteus2.jpg http://www.independent.co.uk/news/science/prehistoric-fish-had-

bite-stronger-than-a-trex-426263.html http://science.nayland.school.nz/graemeb/yr12%20marine/

fisheries/Fish%20Reproduction_files/image003.jpg http://www.bioreactors.eu/files/pictures/en/

bioreactor_fish_tail_agitation_principle.jpg http://bio-isu.tripod.com/id3.html