Do fish cover there eggs with jelly?

Not all fish cover their eggs with jelly, but many do! It's a common strategy for many species, especially those that lay their eggs in open water. Here's why:

* Protection: The jelly-like substance provides a protective barrier against predators and parasites.

* Moisture: The jelly helps keep the eggs moist, which is essential for their development.

* Buoyancy: The jelly helps keep the eggs afloat, which is important for species that lay their eggs in open water.

Examples of fish that lay jelly-coated eggs:

* Salmon: Salmon lay their eggs in nests called redds and cover them with gravel, but the eggs themselves are coated in jelly.

* Cod: Cod lay their eggs in large, gelatinous masses that can contain millions of eggs.

* Sea anemones: While not technically fish, sea anemones are aquatic animals that lay jelly-coated eggs.

However, there are also many fish species that do not lay jelly-coated eggs. For example, some fish species bury their eggs in the sand or lay them in nests, while others give live birth.

So, while some fish cover their eggs with jelly, it's not a universal strategy. The type of egg protection a fish uses depends on its specific environment and reproductive strategy.