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Young, juvenile fish that have developed to the point of being able to feed on their own; crucial for assessing the success of spawning.

The process of egg development in female fish, culminating in spawning; critical for producing viable eggs for fertilization.

The early post-hatching period when fish are in their larval form, which is highly sensitive to environmental conditions and is critical for survival and growth.

The reproductive capacity of a fish, often measured by the number of eggs produced. High fecundity is associated with a greater chance of offspring surviving to adulthood.

A form of asexual reproduction where an egg develops into an embryo without fertilization, rare in fish but significant for genetic studies.

Variety within the gene pool of a fish population; maintaining genetic diversity is important to prevent inbreeding and to sustain healthy populations in aquaculture.

The practice of collecting adult fish from the wild to serve as breeding stock in aquaculture, ensuring the introduction of wild genes into farmed populations.

The amount of light and darkness a fish is exposed to each day; manipulating photoperiod can influence breeding cycles and spawning in aquaculture.

The process by which fish release eggs and sperm into the water for external fertilization. Significant as this method enables a high number of potential offspring.

Adult fish that are kept for breeding purposes to ensure genetic diversity and healthy offspring in aquaculture.

The time period between egg fertilization and hatching. Conditions during this period are vital for the successful development of embryos.

The process of introducing young fish to a body of water for population enhancement or to establish a breeding population, important for conservation and aquaculture.

A genetic manipulation technique resulting in fish with three sets of chromosomes, which are typically sterile and often grow larger, useful for aquaculture to prevent breeding.

The process of choosing specific fish to reproduce based on desirable traits, improving stock quality over generations in aquaculture.

The cultivation of only one sex of fish, often used to prevent uncontrolled breeding or for species where one sex has a preferable growth rate or size for harvest.

The process of sperm development in male fish, essential for successful fertilization of eggs.

The use of hormones to stimulate fish to spawn or reach sexual maturity, especially important for species that do not breed readily in captivity.

The concurrent cultivation of different fish species together, which can optimize space and resources, and mimic natural ecosystems for breeding.

The overall process of gamete (egg and sperm) development in fish, crucial for understanding fertility and effective breeding programs.