List of top Fisheries Science Questions on Population dynamics

Which one among the following is not true in relation to Von Bertalanffy plot?

Which one among the following is not true in relation to Von Bertalanffy plot?

A measure of the relationship between two random variables and to what extent they change together is

A pond contains 200 fishes of which 40 are marked. A second pond contains 300 fishes of which 50 are marked. One fish is drawn from each of the ponds. What is the probability that the fishes drawn are both marked?

A single value used to estimate population parameter is called

For a given set of data, if the difference between mean and mode is 36, what is the difference between mean and median?

A broad class of computational algorithms that rely on repeated random sampling to obtain numerical results.

Given below are two statements:
Statement (I): Long-living fishes approach asymptotic length slowly.
Statement (II): Fishes with high longevity will generally have a high natural mortality rate.
In light of the above statements, choose the most appropriate answer from the options given below.

Which model is one of the age-structured models?

Choose the non-parametric tests among the following :
(A) Mann-Whitney test
(B) Pearson correlation
(C) Spearman's rank correlation
(D) t-test
(E) The Wilcoxon signed-rank test
Choose the correct answer from the options given below :

In which of the following distribution, mean is equal to variance ?

What is the annual fishing mortality rate, if the fishing effort is 8000 vessels and catchability coefficient is \(5 \times 10^{-4}\) per vessel per year ?

With the increase in fishing effort, what is the correct sequence of the following that occur in a typical marine fishery ?

Selection curve expected from a standard gillnet is :

Which among the following models do not require biological data inputs for fish stock assessment ?
(A) Surplus production model
(B) Thompson and Bell prediction model
(C) Relative response model
(D) Yield per recruit model
(E) Swept area method
Choose the correct answer from the options given below :

As per the analytical models of fish stock assessment, presence of too many old fish in the stock is an indicative of :

If the Pearson’s correlation coefficient (r) is 0.9, what is the value of coefficient of determination?
[Question ID = 1426]

Method of sampling which involves dividing the population into sub-populations that may differ in important ways

Threshold value for significance used in hypothesis testing is
[Question ID = 1428]

The cranial nerve which arises from the lateral side of the medulla oblongata and supplies the snout and jaws

Arrange the following stages of development in a typical teleost, starting from the earliest
A. Gastrula
B. Cleavage
C. Blastula
D. Fertilization
E. Morula
Choose the correct answer from the options given below:

Which of the following is Ex situ conservation method?

Given below are two statements
Statement I: Rods of fish eye are sensitive to lowlight levels and provide low resolution.
Statement II: Cones of fish eye are less sensitive to light and require brighter light.
In light of the above statements, choose the correct answer from the options given below: