Sunday Quiz

The Sunday Quiz: Lifecycle, Growth and Metabolism

Angler’s Club Magazine presents

The Sunday Quiz

By Ben Team

Each Sunday, we bring you a series of questions to test your knowledge of the fish and some of the strategies used to snatch them. Be sure to let us know in the comments or on social media how you scored and what you’d like us to cover next week.

1) On average, how many pounds of forage does a largemouth bass require in a year to increase its weight one pound?

  1. 1 pound
  2. 2 pounds
  3. 10 pounds
  4. 20 pounds

2) What size is the average bass spawning nest?

  1. 18 inches in diameter, regardless of the bass’ size
  2. 20 inches in diameter, regardless of the bass’ size
  3. Diameter equal to the bass’ total body length
  4. Diameter is twice the bass’ total body length

2) How long does it take bass fry to develop mouthparts?

  1. One week from hatching
  2. Eight to nine days for northern strain bass; five days for Florida strain
  3. Three to eight days for northern strain bass; three days for Florida strain
  4. It varies depending on the water temperature

3) Which of the following formulas provides the best approximation for a bass’ weight in pounds?

  1. Length in inches X maximum girth in inches X maximum girth in inches / 1000
  2. Length in inches X length in inches X maximum girth in inches / 800
  3. Length in inches X maximum girth in inches X maximum girth in inches / 600
  4. Length in inches X maximum girth in inches X maximum girth in inches / 8000

4) At what temperature do bass grow most efficiently?

  1. 76 degrees Fahrenheit
  2. 80 degrees Fahrenheit
  3. 86 degrees Fahrenheit
  4. 88 degrees Fahrenheit

5) On average, females produce ______ eggs for every one pound in body weight.

  1. 1,000
  2. 2,000
  3. 4,000
  4. 88,000

6) Which number reflects the average critical thermal maximum (temperatures at which most bass die with continued exposure) for largemouth bass?

  1. 101 degrees Fahrenheit
  2. 98 degrees Fahrenheit
  3. 99 degrees Fahrenheit
  4. 92 degrees Fahrenheit

7) From which two lakes did the world co-record holding largemouth bass come?

  1. Lake Lanier and Lake Biwa
  2. Lake Biwa and Montgomery Lake
  3. Lake Okeechobee and Lake Biwa
  4. Lake Biwa and Lake Hartwell

8) Assuming they are all swimming in the same wind-swept cove, which bass will change temperature the quickest as a cold front moves through?

  1. A 1-pound male
  2. A 2-pound male
  3. A 2-pound female
  4. A 12-pound female

 

 

 

Answers

  1. C – According to the Southern Regional Aquaculture Center, bass must eat about 10 pounds of food per year to add one pound of mass.  Five pounds of forage are required for simple maintenance.
  2. D – The Southern Regional Aquaculture Center states that males fan out a circular spawning nest with a diameter of about twice their body length.  This means that if the bass’ tail is near the boundary of the nest, his face is almost directly in the middle of the nest (or vice versa).
  3. D – Because bass are ectothermic, the rate at which the fry absorb their egg yolk and develop mouthparts is directly related to the water temperature.
  4. A – Multiply the fish’s length by the girth twice, and then divide it by 1,000. However, some authorities recommend using variations of the formula for particularly thin or heavy specimens.  If the fish is torpedo shaped, divide the product of the length and girth squared by 1,200 instead of 1,000. For gravid females, divide the product by 800 instead of 1,000.
  5. B – According to a 1981 study, published in Journal of Fish Biology, the optimal temperature for maximizing bass growth rate in 27 degrees Celsius / 80 degrees Fahrenheit.
  6. C – The Southern Regional Aquaculture Center states that, on average, female bass produce 4,000 eggs for every pound of body weight, but deviation from this norm is common.
  7. A – According to a 1997 study, published in Environmental Biology of Fishes, the critical thermal maximum for largemouth bass is approximately 38.5 degrees Celsius / 101 degrees Fahrenheit.
  8. B – One of the co-record holders was caught in Montgomery Lake, Georgia in 1932; the other was caught in Lake Biwa, Japan in 2009.  Learn more about the records here.
  9. A – Regardless of the gender, smaller bass heat up and cool off more quickly than larger bass do.  This is true of virtually every animal in the world (assuming they have a similar body plan).

 

 

 

 

Share on Google+Tweet about this on TwitterShare on Facebook

Leave a Reply

Your email address will not be published. Required fields are marked *