Caudalor

Posterior

Cranialor Anterior

Dorsal

Ventral

Tilapia AnatomyDorsal FinDorsal Fin

CaudalFinCaudalFin

Anal FinAnal FinPelvicFinPelvicFin

PectoralFinPectoralFin

OperculumOperculum

Lateral LineLateral Line

Catfish AnatomyDorsal Fin

Adipose Fin

CaudalFin

Anal FinPelvic Fin

Pectoral Fin

Barbel

Operculum LateralLine

Retroperitoneal

Thor-acic Peritoneal

Fish CavitiesPeritonealMembrane

Fish Cavitiesand

Membranes

Peritonium

Messorchium

Messentary

Ovary

Intestine

RP Retroperitoneal cavity

RP

P Peritoneal cavity

P

Cross Section

BasicGuts

Spine Kidney Swim Bladder

Gonad

Spleen

Intestine

Stomach

Esophogus

HeartLiver

GillGill

HeartHeart

LiverLiver IntestineIntestine FatFatLiverLiver

Dark peritoneum

HeartHeart

LiverGallBladder

Spleen

Intestine

IntestineIntestine

GillGillHeartHeart

LiverLiver

SwimSwimBladderBladder

TestisTestis

SpleenSpleen

KidneyKidneySwim Bladder Opened

Kidneys: Looking Up from the Bottom

Bass and Trout Catfish and Carp

AnteriorRegion ofKidney

PosteriorRegion ofKidney

HeadKidney

TrunkKidney

Stannius Corpuscle

Trunk Kidney:Urine/Osmoregulation

Head/Anterior Kidney:Makes blood cells

TheHeart

LungsBodyGills Body

Fish Mammal

A A

AAVV

V V

Swim Bladders

Swim Bladder

Esophagus

Some fish have a duct that connectsthe swim bladderto the intestine.

Pneumatic Duct

Swim Bladders

Swim Bladder

Intestine

Swim Bladder

Intestine

Some fish have a duct that connectsthe swim bladderto the intestine.

Other fish have no duct and inflate theirswim bladder by usinga gas-secreting gland.

GasGland

Pneumatic Duct

Liver Anatomy

Catfish Liver and Gall Bladder

Tilapia Liver and Gall Bladder

Liver:-Modifies food-Storage

Gall Bladder:Bile for digestion of fats

Gut

Basic Gut Anatomy

Mouth

Pharynx

EsophagusStomach

Valve

Valve

ProximalIntestine

DistalIntestine

Valve Vent

What is missing (mammals)?What are the functions?

Variability in Gut Design

Carp Catfish Trout Sturgeon

Brain AnatomyCoordinationof Movement

Coordinates Senseswith Movement

Vision

Smell

Pituitary GlandSpine

ToTail

ToNose

Spleen:Blood FiltrationBlood cell storage

Fish Eyes

Errors?

Retroperitoneal

PeritonealThoracic

Review

VB SBTK

E

H

LV ST SPI

O

HK

Review

• Know the cavities– Peritoneal, retroperitoneal, thoracic

• Know what organs are in those cavities

• Know the fins• Be able to label the cartoon fish