De feeesh Flashcards
What should you try to do first in a physical exam for a fish
Biopsies
What should you biopsy
gill
skin
fins
Only FDA approved anesthetic for fish
MS-222
How much dissolved oxygen should be in the water during
At or near saturation
If volume is in liters what is the concentration in
mg/L
If the volume is in gallons what is the concentration in
amount of chemical
Withdrawal period for MS-222
21 days
Blood collection sites
caudal vein
duct of cuvier
dorsal aorta
heart
What type of tube do you use for blood collection
Lithium herparin (green top)
Biggest concern with imaging
life support
How much air should be in a bag with a fish that is being transported
2/3 air
Florida aquaculture production distribution
- Tropical fish
- Aquatic plants
- Clams
- Alligators
- catfish
Extensive care basic principles
focuses on fishery rather than aquaculture
Low biomass
minimal management required
Intensive care basic principles
Management like a typical farm
larger problems
feeding required
aeration required
advantages of extensive production
little to no investment
low tech
minimal water quality problems
natural food
example of extensive production in florida
livebearer
Intensive production advantages
more control if indoors
no predation if indoors
massive increase in production
disadvantages of intensive production
increased risk of disease
system failure, really bad
high start up and operating costs
complete diet required
Example of intensive production in Florida
egg layer production
Types of production used for aquaculture in the US
earthen pond
raceways
cages or net pens
re=circulating tanks
Pond production advantages
free/cheap water
no filtration system
some natural food
Pond production disadvantages
minimal control of environment
predation
difficult to maintain inventory
off flavor
Raceway advantages
free water
no filtration needed
inexpensive
Raceway disadvantages
poor control of water source
introduce disease to water
crowding
difficult to treat
