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Because only about 1 in 1000 will survive to adulthood.

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An adult salmon that is heading upstream to spawn?

An adult salmon heading upstream to spawn embarks on an arduous journey, often traveling hundreds of miles from the ocean to their birthplace in freshwater rivers and streams. This migration is fueled by instinct and the need to reproduce. Along the way, salmon face numerous challenges, including waterfalls, predators, and changes in water conditions. Once they reach their spawning grounds, they will lay and fertilize eggs before ultimately dying, completing their life cycle.


Are male salmon bigger than females?

In general, male salmon are not typically larger than females. In many species, females tend to be bigger, especially as they need to carry and spawn eggs. However, size can vary depending on the species and environmental factors. In some cases, males may exhibit larger body sizes due to competition for mates.


What do you need to do with the tetra eggs to get them to hatch?

Nothing. They should develop into fry without you doing anything. The fish would not normally spawn if the water and conditions are not suitable for the ova to develop.


Why is your female fighting fish getting fat with no male?

A female Betta does not need a male for her to come into breeding condidion (develop ova). She does however need a male to assist her in order for her to lay (spawn) those eggs.


Do you need heater for Betta eggs to spawn?

Yes, a heater is recommended for Betta eggs to spawn, as they thrive in warm water. The ideal temperature for breeding Betta fish is between 78°F and 80°F (25°C to 27°C). Maintaining this temperature helps ensure proper development of the eggs and fry, promoting a successful breeding process. Additionally, stable water conditions contribute to the overall health of the fish.


How do you set spawn on you minecraft server?

First, you need bukkit. Install the Essentials Spawn plugin and type "/setspawn" in the server to set the spawn.


What is a behavior that an animal does not need to learn?

A behavior that an animal does not need to learn is instinctive behavior, such as a sea turtle hatchling's instinct to move toward the ocean immediately after emerging from its eggs. This behavior is hardwired in their genetics and is essential for their survival, as it helps them escape predators and find their marine habitat. Other examples include a bird's instinct to build a nest or a salmon's instinct to return to its birthplace to spawn. These actions are performed without prior experience or learning.


How long before you take your goldfish out and leave the spawn?

The goldfish and spawn need to be separated immediately spawning has finished otherwise the spawn will be eaten. I used to remove most of the spawn rather than moving the fish.


When goldfish lay eggs do they have to be in a tank by themselves?

No, goldfish do not need to be in a tank by themselves to lay eggs. They can spawn in a communal tank, but it’s important to ensure that there are no adult fish that will eat the eggs or fry. Providing ample hiding spots and plants can help protect the eggs once they are laid. However, separating the breeding pair may help facilitate successful spawning.


How do you make spider eggs hatch on total miner?

There is really no way to hatch a spider egg in TMF. you just need to put it down in a roomy area and just wait a couple minutes for them to spawn


How do you make a spawn point in minecraft?

You need to find a dungeon which has a mob spawner inside. (It looks like a little cage with fire and a miniature version of the mob it will spawn.) Mob spawners can spawn in dungeons zombies, skeletons or spiders. In abandoned mine shafts they can spawn cave spiders. In strongholds they can spawn silverfish. In Nether Fortresses they can spawn blazes.


How do you spawn animals in minecraft sky block?

In Minecraft Skyblock, you can spawn animals by creating a suitable environment for them to naturally spawn. This includes building grassy areas for passive mobs like cows, pigs, and sheep to appear. Alternatively, you can use spawn eggs to directly spawn animals in your world. It's important to note that spawning hostile mobs like skeletons or zombies may require specific conditions such as darkness or specific biomes.