Download Research Homework for Dr. Ed Galindo

1) What are the "safe" biological and chemical ranges for fish (salmon) to live in (list all you know about). For
example, Ph or DO range
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pH = 7 (Scott Williams)
DO – Very High, >12mg/L (Scott Williams)
Temp – 3-5°C – higher temperature = quicker hatch rate (Scott)
Low Sediment/silt/turbidity (Scott)
Low OM (Scott)
No sunlight during “eyed” stage (Scott)
Extremely High velocity is dangerous to their life (Scott)
2) How much economic benefit does the State of Idaho get from the salmon industry? Where does this money go?
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Millions of Dollars and the money goes to Idaho Fish and Game and the hatcheries (Idaho Fish and Game
Website)
3) Where are our states hatcheries located at and how many fish do they produce (list species)? What is the
estimated live hatch rate for each? List some advantages and disadvantageous of our hatcheries.
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See Attached – Department of Idaho Fish and Game Website
4) What are some diseases fish can get and why?
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Bloat (waterbelly) – bad conditions –High EC
Viruses – not as relevant when eggs are clean – large populations – make certain hatchery
Bacteria – Bacterial Coldwater disease – dirty habitat
Fungi – poor flow, bad filtration, contaminated water source – clean eggs before insertion into WV boxes
to prevent transfer of bacteria, etc. – possible?
Protozoa – Trichodiniasis – parasites – water w/ pathogens
Arthropods – Salmincola – Filter the Water – check characteristics of water
Helmintha – worms – snail free zone
-Alaska Department of Fish and Game
5) Give the life cycle of a salmon with as much detail as your team can (with the scientific names).
FishEx.com
Eggs (3
months)
Spawning time!
(death within
two weeks)
Alevin (weeks)
Adult (1-8
years) @ sea
Fry (5-10
weeks)
Smolt (1-3
years) to the
sea
Parr (months)
6) Be thinking of what materials you want to use for the construction of your incubator models and get a rough
budget together for review. I am working on some order forms the team can fill out.
 Cailin and Nora are beginning to research this topic to have information before the first snapshot day
(October 9, 2012). Ideas we have include: a plastic material, PVC, others?
Location
Fish Produced
1
American Falls
2
Ashton
220000
30000
250,000
3
Cabinet Gorge
250,000
4
Clearwater
100000
5
Eagle
Not specified
6
Grace
Not specified
7
Hagerman
Not specified
8
9
Hayspur
Henry's Lake
10
Mackay
Not specified
1.3 million
350000
3-5 million
11
12
13
Magic Valley
McCall
Nampa
1.5 million
Not specified
Not specified
14
15
Niagara Springs
Oxbow
Not specified
1-2 million
16
Pahsimeroi
1 million
17
18
Rapid River
Sandpoint
Not specified
Not specified
19
Sawtooth
Not specified
Species
rainbow trout.
brown trout.
rainbow trout
cutthroat trout
arctic grayling
kokanee salmon
westslope cutthroat
chinook salmon.
rainbow trout
Chinook salmon
Steelhead
west slope cutthroat
rainbow trout
kokanee
salmon.
Sockeye Salmon
Chinook Salmon
rainbow trout
Bear Lake cutthroat trout
Bear River Bonneville
cutthroat trout
rainbow trout
coho salmon
rainbow trout
Yellow stone cutthroat
Rainbow/Cutthroat Hybrid
Rainbow trout,
Henrys Lake Yellowstone
cutthroat trout,
Snake River Fine Spot
cutthroat trout,
Rainbow/cutthroat hybrid
trout,
Kokanee salmon
Westslope cutthroat trout.
steelhead
Chinook Salmon
Rainbow
Lahontan
Brown Trout
Chinook Salmon
Steelhead
Steelhead
Chinook Salmon
Steelhead
Chinook Salmon
Chinook Salmon
Rainbow
West Slope Cutthroat
Chinook Salmon
Hatch Rate
Not specified
Not specified
Not specified
Not specified
Not specified
Not specified
Not specified
Not specified
Not specified
Not specified
Not specified
Not specified
Not specified
Not specified
Not specified
Not specified
Not specified
Not specified
Not specified
Rainbow
Sockeye/Kokanee Salmon
West Slope Cutthroat
The advantages of fish hatcheries are:
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Many species of fish can be raised
Fish farming has helped in sport fishing
Water contamination due to fishes can be more easily prevented
Endangered species are given chance to repopulate
Fishes can be protected from some diseases of concern
The disadvantages of fish hatcheries are:
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Has changed and disturbed the ecosystem
Disturbed the migration route
Fish that are released to the wild are not wild fish