3.1 –reproduction, senses and communication 3.2 – reproduction, senses and communication week 3
Post on 21-Dec-2015
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3.1 –Reproduction, senses and communication
3.2 – Reproduction, senses and communication
Week 3
Chapter 20-21-22: Sensory Biology
Fish Eye
A fish’s view through the water surface
Specialized eye placements
Anableps
Periophthalmus
No eyes
Third eye
Chapter 21 – Hearing, Balance, lateral line and electricity
Otic Region of the Skull
Inner Ear of a bony fish
Otolith
Neuromast organ (hair cell)
Weberian Apparatus
Ostariophysian fishes
Herring, anchovies, sardines….
Lateral Line
Trunk and cephalic lateral line
ratfish
Lateral Line
Passive electrosensory systems
Ampulla of Lorenzini
Active electrosensory systems
Mormyridae (Osteoglossomorpha)
Magnetic field sensors?
Electrical Generation
Strong dischargers
Strong dischargersElectric ray
Electric stargazer
Strong dischargers
Electric eel
Electric catfish
Weak dischargers
gymnotids
mormyrids
Weak dischargers
some rays
electric eel
Fishes and sound
stridulation
drumming
Trichopsis
Croaking gourami
Chapter 22 – Chemosenses – Olfaction, taste and misc.
Taste (gustation)
Olfaction
Olfaction
Olfactory rosette
External nares
Olfactory structures – basic anatomy
Olfactory rosette
lungfish
Internal nares (choanae)
Deep sea angler fish
Taste (gustation)
Taste bud
Chapter 23 – A bit about feeding and food
Tooth bearing bones in fishes
Gill rakers
Basking shark
Herring
Pharyngeal Jaws
Pharyngeal Jaws
Digestive tract
Digestive tract
Lamprey
Herbivorous fish
Chondrichthyes and lower bony fishes
Chapter 25 – Osmotic Balance
Marine
Both
Freshwater
Aquatic Tetrapods
Freshwater fish
Saltwater fish
Freshwater fishes
Armor
Scales
Lampreys
Elasmobranchs
Teleosts
Freshwater
Freshwater Teleost
Hypo-osmotic to environment
Hagfish
Marine Elasmobranch
Latimeria (living coelacanth)
Marine Teleost
Hyperosmotic to environment
Diadromy
Anadromous
Catadromous
Coastal Marshes
“Seawater Farms Bringing Life from Deserts and Seawater”
tilapia