Fecundity

Do all species show the same fecundity?

Do all species show the same fecundity?

Fecundity is high in all species studies and usually ranges up to some 700,000 eggs per spawning. Lindberg (1955) and Allen (1916) reported a range in fecundity of between 50,000 and 800,000 eggs per female in P. interruptus, depending on size. Similar ranges in fecundity have been measured in P.

  1. What animals have high fecundity?
  2. What species has low fecundity?
  3. Why do fishes have different fecundity?
  4. What is an example of fecundity?
  5. Are fecundity and fertility the same?
  6. What animal has the biggest litter?
  7. What animal has the most babies at once?
  8. How do you determine fecundity?
  9. Why do animals have litters?
  10. Why do fish spawn all at once?
  11. Do fish have menstrual periods?
  12. What is absolute fecundity?
  13. What is fecundity in animal science?
  14. Is fecundity declining explain?

What animals have high fecundity?

Wild animals, from birds to rabbits to snakes, usually produce more than one offspring at a time. Animals that produce multiple offspring and breed often are described as having high fecundity. Fecundity increases the chances that at least one of an animal's offspring will survive to become a parent themselves.

What species has low fecundity?

Choice of a champion is difficult, but from the published estimates the louse fly Hippobosca variegata is the species with the lowest lifetime fecundity, producing an average of 4.5 offspring.

Why do fishes have different fecundity?

The differences in the values are possibly due to the collection from different habitats. Fecundity of the fish is closely related to the fish length and weight. A straight line relationship has been observed between the fecundity and the fish length, and the fecundity and fish weight in a number of species.

What is an example of fecundity?

Fecundity rate or reproductive rate quantifies the number of offspring an organism produces over time. ... For example, marine invertebrates like jellyfish and sea stars have many offspring but provide little parental care.

Are fecundity and fertility the same?

Fertility is the number of children born to a woman, while fecundity is her physiological potential to bear children.

What animal has the biggest litter?

Arctic Foxes hold an interesting record. They have the largest litters of any wild mammal in the world. While the average is 11 puppies, litters with 22 puppies have been recorded in Russia.

What animal has the most babies at once?

Male seahorses possess the remarkable ability to give birth to thousands of babies at once.

How do you determine fecundity?

The fecundity is then F = nV/v where n = number of eggs in the subsample, V = volume to which the total number of eggs is made up and v = volume of the subsample. In practice, it is normally necessary to count more than one subsample from each fish to get a reliable estimate of the fecundity.

Why do animals have litters?

A litter offers some protection from predation, not particularly to the individual young but to the parents' investment in breeding. ... With multiple young, predators could eat several and others could still survive to reach maturity, but with only one offspring, its loss could mean a wasted breeding season.

Why do fish spawn all at once?

Oxygen levels of the water, availability of food, size of each fish, age, number of times the fish has spawned before and water temperature are all factors known to effect when and how many eggs each carp will spawn at any one time.

Do fish have menstrual periods?

Fish do not have periods. They have internal sexual organs and ovaries that produce unfertilized eggs once a year. When the eggs have matured, the female will eject them into the water for external fertilization by the male. This process, called spawning, makes a menstrual cycle in fish unnecessary.

What is absolute fecundity?

Definition of Term

absolute fecundity (English) Total number of eggs in a female. (

What is fecundity in animal science?

Fecundity is the ability to produce offspring. It can also describe the reproductive rate of an individual organism. ... Animals have limited amounts of energy they can use for reproduction. Animals with high fecundity spend their energy in the production of many offspring that do not require much care.

Is fecundity declining explain?

Fecundity can increase or decrease in a population according to current conditions and certain social factors. ... Indeed, it is considered impossible to cease reproduction based on social factors, and fecundity tends to rise after a brief decline.

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