What distinguishes Euryhaline organisms from stenohaline...

All Subjects General Agriculture Microbiological and Quality Aspects of Fish and Fishery Products Fisheries Resources Fish Biology and Stock Assessment Fisheries Management and Responsible Fisheries Fisheries Livelihood Fish Biochemistry Low and High Temperature Preservation Fish Curing, Value Addition and By-Products

Q.66

Fisheries Resource Management- ICAR JRF/SRF 2024

MCQ (Single Correct) +4 −1

What distinguishes Euryhaline organisms from stenohaline organisms?

Euryhaline organisms can only exist in freshwater ecosystems. Stenohaline organisms are salt-tolerant and can survive in marine ecosystems Euryhaline organisms can adapt to a wide range of salinities, while stenohaline organisms can only tolerate narrow ranges. Stenohaline organisms are freshwater organisms

Q.67

Fisheries Resource Management- ICAR JRF/SRF 2024

MCQ (Single Correct) +4 −1

What is the primary function of aerenchyma in aquatic plants?

To transport oxygen to roots To store excess nutrients To provide structural support To absorb carbon dioxide

Q.68

Fisheries Resource Management- ICAR JRF/SRF 2024

MCQ (Single Correct) +4 −1

What is the main role of macroinvertebrates in assessing water quality in streams and rivers?

Nutrient cycling Oxygen production Pollination Bioindication

Q.69

Fisheries Resource Management- ICAR JRF/SRF 2024

Match the Following +4 −1

Match the following oceanographic analysis techniques with their descriptions:

Choose the correct answer from the options given below :

List - I Technique		List - II Description
A	GIS GIS	I	Examination of large-scale ocean features and phenomena Examination of large-scale ocean features and phenomena
B	Remote sensing Remote sensing	II	Study of rapid fluctuations in ocean productivity Study of rapid fluctuations in ocean productivity
C	Synoptic analysis Synoptic analysis	III	Mapping and monitoring fisheries habitats and resources Mapping and monitoring fisheries habitats and resources
D	Short-term productivity changes Short-term productivity changes	IV	Utilizing satellite imagery for oceanographic research Utilizing satellite imagery for oceanographic research

(A) - (III), (B) - (II), (C) - (I), (D) - (IV) (A) - (II), (B) - (III), (C) - (I), (D) - (IV) (A) - (I), (B) - (II), (C) - (IV), (D) - (III) (A) - (III), (B) - (IV), (C) - (I), (D) - (II)

Q.70

Fisheries Resource Management- ICAR JRF/SRF 2024

Match the Following +4 −1

Match the following fisheries enhancement strategies with their descriptions:

Choose the correct answer from the options given below :

List - I Strategy		List - II Description
A	Artificial upwelling Artificial upwelling	I	Creating conditions for vertical layering of water masses Creating conditions for vertical layering of water masses
B	Ranching Ranching	II	Introducing nutrients to stimulate phytoplankton growth Introducing nutrients to stimulate phytoplankton growth
C	Ocean fertilization Ocean fertilization	III	Capturing juvenile fish for rearing and release into the wild Capturing juvenile fish for rearing and release into the wild
D	Stratification Stratification	IV	Manipulating ocean currents to bring nutrient-rich water to the surface Manipulating ocean currents to bring nutrient-rich water to the surface

(A) - (I), (B) - (III), (C) - (II), (D) - (IV) (A) - (IV), (B) - (III), (C) - (II), (D) - (I) (A) - (I), (B) - (II), (C) - (III), (D) - (IV) (A) - (III), (B) - (IV), (C) - (I), (D) - (II)