BuyFindarrow_forward

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332

Solutions

Chapter
Section
BuyFindarrow_forward

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332
Textbook Problem
1 views

Suppose 200 fish are marked and released in a pond. The following week, 200 fish are caught and 100 of them have marks. There are about ______ fish in this pond.

  1. a. 200
  2. b. 300
  3. c. 400
  4. d. 2,000

Summary Introduction

Concept introduction: The rise in number of individuals in a population is called population growth. The rate of population growth becomes more rapid in proportion to the growing total size of population. Population distribution is an arrangement of population in a particular area according to its conditions and requirements of the society. Demographics are the statistics used to describe population. Plot sampling are the methods mainly used for population size estimation.

Explanation

Reasons for the correct statement:

Scientists use mark recapture sampling to estimate the population size. Using this technique, some number of animals in a population are captured, marked and then released. After allowing the marked individuals to meld back into the population, the scientists capture animals again. The proportion of marked animals in the second sample is taken to be representative of the proportion marked in the whole population. Characteristics of individuals in a sample plot or captured group can also be used to infer characteristics of the population as a whole.

This can be calculated by using the following formula:

Marked-in-catchtotal-in-catch=Marked-in-pondtotal-in-pond

Here,

The fishes tagged in catch is 100.

Total number of marked fishes in catch is 200.

The fishes marked in pond is 200.

To find: The total number of fishes in pond is x

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Additional Science Solutions

Find more solutions based on key concepts

Show solutions add

Eating disorders are common only in cultures where extreme thinness is an ideal. Who in society do you think se...

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

Describe how Dalton obtained relative atomic weights.

General Chemistry - Standalone book (MindTap Course List)

How are length and time used to describe motion?

An Introduction to Physical Science

To which spectral classes do the stars in Problem 4 belong?

Horizons: Exploring the Universe (MindTap Course List)

Match the term listed in Column A with its definition from Column B

Nutrition Through the Life Cycle (MindTap Course List)

A heliumneon laser emits a beam of circular cross section with a radius r and a power P. (a) Find the maximum e...

Physics for Scientists and Engineers, Technology Update (No access codes included)