CIRCULATIONCIRCULATION COLD BLOODED; PoikilothermicCOLD BLOODED; Poikilothermic 2 CHAMBERED HEART2 CHAMBERED HEART RED SWIMMING MUSCLE IN TUNA RED SWIMMING MUSCLE IN TUNA

AND PELAGIC SPECIESAND PELAGIC SPECIES Warmer than body temp.Warmer than body temp. MyoglobinMyoglobin Oxygen storageOxygen storage

FOOD GETTINGFOOD GETTINGFILTER FEEDERS;FILTER FEEDERS; USE GILL USE GILL RAKERS,RAKERS,

examples; Herring, examples; Herring, AnchoviesAnchovies

VARIOUS VARIOUS SPECIALIZED TEETHSPECIALIZED TEETH SHEEPHEAD; crushing teethSHEEPHEAD; crushing teeth QUEEN TRIGGER; urchin eaterQUEEN TRIGGER; urchin eater Parrotfish; Parrot-like beak, Parrotfish; Parrot-like beak,

coral eatercoral eater BARRCUDA; needle-like teethBARRCUDA; needle-like teeth PERCH; small teethPERCH; small teeth

Bicolor Parrotfish

Other feeding Other feeding styles;styles;

““Slurp-gun” technique;Slurp-gun” technique;ex. Sea horseex. Sea horse

SCALESSCALES FUNCTION;FUNCTION; STREAMLINING, slippery STREAMLINING, slippery

mucous coveringmucous covering PROTECTION; physical harm PROTECTION; physical harm

and parasitesand parasites osmotic balanceosmotic balance balance of water and balance of water and

saltssalts

VARIATIONS IN VARIATIONS IN SCALESSCALES

SCALES ABSENT IN MORRAY SCALES ABSENT IN MORRAY EELEEL

SCALES FUSED IN THE SEA SCALES FUSED IN THE SEA HORSE TO FORM A HARD HORSE TO FORM A HARD OUTER COVERINGOUTER COVERING..

KIDNEY FUNCTIONKIDNEY FUNCTION REMOVAL OF REMOVAL OF

NITROGENOUS WASTENITROGENOUS WASTE (ammonia, urea etc.)(ammonia, urea etc.) MAINTENANCE OF MAINTENANCE OF

OSMOTIC BALANCEOSMOTIC BALANCE

FRESH WATER FRESH WATER FISHFISH

EXCRETES EXCRETES LOTS OF LOTS OF WATERWATER

WELL WELL DEVELOPED DEVELOPED KIDNEYKIDNEY

SALT WATER FISHSALT WATER FISH

DRINKS LOTS OF DRINKS LOTS OF WATERWATER

EXCRETES LITTLE EXCRETES LITTLE WATERWATER

EXCRETES EXCRETES EXCESS SALT EXCESS SALT (KIDNEYS AND (KIDNEYS AND GILLSGILLS))

REPRODUCTIONREPRODUCTIONOVIPAROUS; eggs fertilized OVIPAROUS; eggs fertilized outside the body, outside the body, development external.development external.

Examples and variations;Examples and variations;Nest builders= sticklebackNest builders= sticklebackMouth Breeders= JawfishMouth Breeders= Jawfish

OVIPAROUS (Contd.)OVIPAROUS (Contd.) Eggs adrift in the Eggs adrift in the

plankton=plankton= pelagic species pelagic species

(swordfish)(swordfish) Eggs laid on shore Eggs laid on shore

(beach)=(beach)= GrunionGrunion

OVOVIVIPAROUS; OVOVIVIPAROUS; Fertilization internal. Fertilization internal. Development internal.Development internal.

Young are born ‘alive’.Young are born ‘alive’.

Example= PerchExample= Perch