Questions for 5.4 salmon handout

1.What is morphology?

2.What is the most important part of taking care of salmon?

3.What can cause problem with salmon gills and cause stress on salmon?

4.What does water temperatures effect?

5.What would reducing or removing groundwater reduce?

The effects of pollution on Salmon

Facts

*Sock-eye salmon are the most sensitive to low p.h waters

*18 miles of river was lost/deemed dead because of the acid waters

*The current Alaska water quality standard requires a pH between 6.5 and 8.5

*pH less than 4.5: All salmon and other fish species will die or be displaced from a water body.

*An acceptable alkalinity level for salmon culture is in the 40 to 100 ppm range

*pH levels of 7.0 to 8.0 are considered optimal to maintain a productive ecosystem

*If pH falls below the tolerance range even for a short period, death can occur

*when having acidy waters prey species for salmon drop significantly.

Vocabulary

logarithm -A quantity representing the power to which a fixed number (the base) must be raised to produce a given number.

macro-invertebrates- small bugs with no backbone

acidification- the process of making waters have more acids In them

conductance- the degree to which an object conducts electricity.