Question

Given below are two statements:
Statement (I): Gold fish eggs are adhesive.
Statement (II): Common carp eggs are adhesive.
In light of the above statements, choose the most appropriate answer from the options given below.

• A. Both Statement (I) and Statement (II) are correct.
• B. Both Statement (I) and Statement (II) are incorrect.
• C. Statement (I) is correct but Statement (II) is incorrect.
• D. Statement (I) is incorrect but Statement (II) is correct.

Hint:

Most carps that breed in stagnant water (like Common Carp and Goldfish) have adhesive eggs. Carps that breed in flowing rivers (like IMC) usually have non-adhesive, semi-buoyant eggs.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
Fish eggs (ova) are classified based on their behavior in water. They can be pelagic (floating), demersal (sinking), adhesive (sticking to substrates), or non-adhesive.
Detailed Explanation:
Analysis of Statement (I): Goldfish (Carassius auratus) are members of the Cyprinidae family. In nature, they spawn on aquatic vegetation. Their eggs are covered with a sticky layer that allows them to attach to plants, preventing them from sinking into the anaerobic mud or being swept away. Thus, Statement (I) is correct.
Analysis of Statement (II): Common carp (Cyprinus carpio) also belong to the Cyprinidae family. They are known as "phytophilic" spawners. Once fertilized, the eggs become extremely sticky (adhesive) and cling to submerged plants (kakabans are often used in hatcheries for this reason). This is a critical factor in their breeding management, as the eggs must be either collected on substrates or chemically de-gummed for intensive incubation. Thus, Statement (II) is correct.

Step 2: Final Answer:
Both statements are correct.