Biology of Finfish and Shellfish (2+1)

4.5.1. Reproductive and Strategy

This means different methods are adapted by fishes to ensure the success of reproduction. Normally fishes live in a variety of environmental conditions. Since the fish live in a dynamic changing environment, they have to evolve different method to ensure success of reproduction. The adaptations are seen in the form of

1. Special anatomical
2. Behavioral
3. Physiological
4. Energetic adaptation
5. Habit

All these are collectively referred to reproductive strategies. Whatever may be the strategy the fish adopts, it should ensure the success of reproduction.

Measure of success of reproduction

The success of reproduction may be measured by different ways.

1. The survival ratio of eggs.
2. The younger ones should be placed in the proximity/close to suitable food material (plenty/ abundant).
3. It should also ensure juvenile to reach the adult stage. Successful early development and larval development.