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ENCR > Tech ll > Flashcards

Tech ll Flashcards

1
Q

Six Fins and Functions

A

Pectoral Fin- left and right motion
Dorsal Fin- directional movement
Ventral Fin- control
Anal Fin- control
Adipose Fin- difference between wild and hatchery if present
Caudal Fin- locomotion, propelling

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2
Q

Functions of….

A

Nasal- Smelling
Lateral Line- feeling vibrations
Gill Plate- protect & operate gill
Maxillary Bone- tasting water

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3
Q

Fish Adjust Water Depth How?

A

Swim Bladder

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4
Q

1) Functions Of Scales?
2) When Do They Have Them?
3) What Do They Determine?

A

1) Scales= Protection
2) Are Found When Fish are at ssea
3) Can determine: age, times in fresh or saltwater

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5
Q

Common Ways Disease is Brought In

A

1) Mud
2) Through Water–>Water
3) Through Fish–>Fish
* This is why we can’t have any other fish in the hatchery at the same time*

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6
Q

How Do We Disinfect Our Gear

A

Argentine

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7
Q

How Do We Disinfect Our Water

A

UV System

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8
Q

Two Water Variables That Define a Rescue Scenario

A

1) Low Dissolved Oxygen
2) 20 degrees Celsius and over Temperature is lethal

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9
Q

Define Weir

A

Barrier in a system Used to Catch Fish

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10
Q

What is a Steelhead Nest Called

A

Redd

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11
Q

Low Flow Spot In the Creek Where Nest are Often Found

A

Riffle

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12
Q

Largest Problem Facing Fish in Raceways?

A

Stress (loud noises, light, etc)

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13
Q

Whole System

A

32,322 Gallons

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14
Q

Per Raceway

A

3,351 Gallons

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15
Q

Passing Through Incubators

A

3-5 Gallons/Minute

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16
Q

Rounds

A

800 Gallons

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17
Q

Two Behaviors That Sum up How You Act

A

1) Polite
2) Professional

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18
Q

False Information Given By Another Member

A

Talk to them after the tour (Dont correct During)

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19
Q

Finnish Tour

A

Thank you, please sign our guestbook

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20
Q

Who Does Daily Maintenance

A

We (The Students) Do

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21
Q

How Do You Address A Question You Can’t Answer

A

“I’m sorry, I am still in training and don’t know the answer to your question I will find
someone that does and get back to you.”

22
Q

Do you answer the Hatchery Telephone

A

No, students don’t use it. You may not know the answer to that caller

23
Q

How do we raise Money? Any From The School

A

1) Raise Money from:
Grants, Donations, Fundraising
2) None From The School

24
Q

Who Designed The Building

A

Jason Cumsen (alumni) (Drawn In Mr. Billing’s Drafting Room)

25
Q

Species Found Returning to Petaluma Watershed

A

1) Chum Salmon
2) Fall Run Chinook Salmon

26
Q

Similarities and Differences (Salmon and Steelhead)

A

1) Similar: Both anadromous
2) Different:
Adult Pacific Salmon die after spawning, but adult Steelhead can go back to the ocean after spawning (2-3 times)
Juvenile Salmon leave the system once they surface up, while Juvenile Steelhead stay in the system for a year

27
Q

Define Spawner

A

Fish with the potential to spawn, that return to their hatching place to spawn

28
Q

How do you Properly Open The Incubator

A

Slowly and carefully

29
Q

Type Of Incubator in the Hatchery

A

Montana Boxes or stack Trays ( lots, 8 rows )

30
Q

How Does it Function

A

Montana Boxes: More human interaction, usually better success rate, hold up to 3,000
eggs.

31
Q

Life Stages

A

1) Egg- Fragile, Eying Up, Hatch Based on Water Temp
2) Alevin- Yolk Sack, Limited Locomotion, Not Eating Real Food
3) Fry- Buttoned up, Eating Real Food, Locomotion
4) Fingerling- Parr Marks, Size Of a Finger (3-4in)
5) Smolt- Heading Out to Ocean, Smoltification
6) Precocious- 2 year olds Sexually Ready to Spawn
7) Spawner- 3 to 4 year olds ready to Spawn

32
Q

What is Genetic Diversity, protected by Hatcheries how

A

Genetic diversity is created by crossing 4 males to 1 female to prevent inbreeding and
fish that are too similar (With an undesirable trait that can harm the fish ex disasters were
to happen [Extinction])

33
Q

What is Eying Up

A

1) Pigments of the eye form
2) 2 weeks

34
Q

What is Buttoning Up and How Long Does it take

A

1) Absorption of Yolk sac
2) About a month to 2 months

35
Q

Problems with Buttoning Up

A

1) Can’t Start Feeding ( Remaining Alevin will die if they cant eat food because their Yolk sacks will burst)
2) Super sensitive

36
Q

How Do We Clean Raceway One and The Hatchery Truck Windows

A

Special Sponge

37
Q

What Are The White Towers In the Mechanical Room

A

Ozone Towers (once used to disinfect water)

38
Q

How Do We Keep Our Water Cold, What is tthe Temperature

A

1) Chiller (In gated area next to the pump house)
2) 12-15 degrees celsius

39
Q

Where Do We Get Our Water, What Is Our Water Temperature Before It Enters
The Building

A

1) The Well (495 ft down) out of Ground 17-20 degrees celsius
2) 12-15 degrees celsius once chilled

40
Q

Nets On Raceway 1 & 2

A

Keep the fish from jumping out

41
Q

1 Thing Commented On

A

Cleanliness

42
Q

Disease In The Water

A

Pathogen

43
Q

Barrier In Stream To Catch Fish

A

Weir

44
Q

Combination Of Food and Dung

A

Ammonia

45
Q

Amount of Oxygen In The Water

A

Dissolved oxygen

46
Q

Time When A Young Fish Heads To Salt Water

A

Adult fish with The potential to Spawn

47
Q

Adult Fish With The Potential To Spawn

A

Spawner

48
Q

Born In Freshwater, Goes To Sea, Returns to Freshwater To Spawn?

A

Anadromous

49
Q

Semilparity

A

Spawns once then dies, uses all of its energy in one shot

50
Q

Fish We Rescue

A

Steelhead → Adobe Creek

51
Q

Steve Dallas

A

Steve Dallas was an alumni of the program who has muscular dystrophy, but wanted to
help and make a difference. He was hired by the hatchery to staple papers because that
was the only limited muscle movement he had. However, he always had “great love for
life” and was very optimistic, so when he passed away, the UA created an award in his
memory given to the senior with the “greatest love for life”.

52
Q
A

ENCR (3 decks)

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