This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: What does maximum sustained yield mean? What factors complicate its application? What will be an ... (Read 57 times)

vHAUNG6011

  • Hero Member
  • *****
  • Posts: 514
on: Jul 15, 2018
What does maximum sustained yield mean? What factors complicate its application?
 
  What will be an ideal response?

Question 2

What evidence of a warming Earth do global land and ocean temperatures provide?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

nguyenhoanhat

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jul 15, 2018
Answer to Question 1

Maximum sustained yield (MSY) is the highest possible rate of use that the system can match with its own rate of replacement or maintenance. The problem with implementing MSY is that we do not know the highest recruitment rate for a species with a specified ecosystem but we make decisions as if we do know. The optimal population size to obtain MSY is one half of the size that it would be at the carrying capacity. We do not know an ecosystem's carrying capacity for various species. Additionally, the carrying capacity will vary from year to year. When the maximum sustained yield is exceeded, the availability of the resource declines.

Answer to Question 2

According to Figure 18-5, there has been a warming trend on both land and in the ocean since 1975 that has not been observed for the past 200 previous years.


vHAUNG6011

  • Member
  • Posts: 514
Reply 2 on: Jul 15, 2018
:D TYSM

Liddy

  • Member
  • Posts: 342
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

Did you know?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Alterable and unalterable risk factors for hypertension. Alterable and unalterable risk factors for hypertension.
Hormonal and nervous factors influencing blood pressure Hormonal and nervous factors influencing blood pressure
Factors for Tolerance Intervals Factors for Tolerance Intervals
Cell surface recognition factors Cell surface recognition factors
How to solve application problems containing exponential equations How to solve application problems containing exponential equations
Calculus help: Find a cubic function f (x) = ax3 +bx2 +cx+d that has a local maximum value of 3 ... Calculus help: Find a cubic function f (x) = ax3 +bx2 +cx+d that has a local maximum value of 3 ...
Video: Neuron Structure Animation

For a complete list of videos, visit our video library