IACUC, ANOVA, YOY, AFS, SCB, TWS, ASIH, EPT How do you measure the length of a f
ID: 178845 • Letter: I
Question
IACUC, ANOVA, YOY, AFS, SCB, TWS, ASIH, EPT How do you measure the length of a fish? How do you determine how similar the assemblage of organisms in a constructed wetland is to the assemblage of organisms in a natural wetland? How do you use a “whirl pak?” How do you cut out the otoliths of a fish? What is a stressor? (). What is clove oil used for? Who is USDA APHIS and what do they do? What is an electrofisher? What is a seine? What is a surber on a stick? How do you measure Q? How do you measure CPUE? What is passive vs. active sampling? How do you sample herps with pitfall traps? Funnel traps? Name an index of stream health?
Explanation / Answer
They are many subparts of a single question.
1. Fish is placed with its jaw closed on its side.
Soft tailed fish - squeeze the tail fin to get maximum length.
Hard tailed fish - tail is turned to get maximum length.
From the snout tip to tail fin tip measure it's length.
2. By observing the variety of species in the two habitats and checking their reproductive pattern and taxonomic and functnal diversity.
3. label the whirl Pak, year the top of the Pak along perforation, use pull tab to open it, put sample into the bag, close it by pulling ends of Pak, bend the wire to close it fully.
4. sectioning of the cranium is done to reach to the inner ear. Otoliths are kept in acid fixatives such as formalin to break them down.