Chapter 1, Problem 23A

Summary Introduction

To identify:

The water depth with the highest relative fish biomass.

Introduction:

Biomass is animal or plant material that is being used to produce energy. In many industrial processes, biomass is as raw material for various products. It can be converted into gaseous and liquid fuels or can be burned directly as fuel like cow dung.

Explanation of Solution

Relative fish biomass at 10 meters depth − 5

Relative fish biomass at 20 meters depth − 12

Relative fish biomass at 30 meters depth − 8

Relative fish biomass at 40 meters depth − 4

Relative fish biomass at 50 meters depth - 4

From the given graph of relative fish biomass, it is seen that at the depth of 20 meters there is highest level of relative fish biomass. At the depth of 40 and 50 meters there is least relative fish biomass.