Fathead Minnow Prelab Research Questions:
Use the internet and the links on the Wiki to answer the following questions:
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What are the sources of lead exposure for people? (describe at least 5)
How do people take lead into their bodies?
What is the incidence of lead poisoning in Milwaukee County?
Who is most likely to have problems with lead poisoning? (be specific – age group, geographical, socioeconomic..)
What are the symptoms of lead poisoning?
Biochemistry
a. Specifically indicate how lead interferes with normal body functioning. Particularly, how does it affect
learning and motor skills, and reproduction?
How does lead accumulate in the body?
If a child is removed from his exposure to lead, will the symptoms be eliminated, or are there long-term effects?
What are the treatment options for lead poisoning?
What can you do to reduce your exposure to lead?
What foods will help to protect you from lead? Why do they protect you?
Use the link to the “Fishes of Wisconsin” fathead minnow page from the Wiki and/or the blue folder article to answer
the following questions:
Fathead minnow questions
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Where do they live in nature?
They are socially facilitated feeders and breeders. What does this mean?
They have a resource-based polygynous mating system. What does this mean?
Fathead minnows a sexually dimorphic. Describe the males vs. the females.
What behaviors do males show in preparation for mating?
Where do females lay their eggs? Why might this location be an advantage?
Females are fractional spawners. What does this mean?
Describe the level of parental care that fathead minnow exhibit.